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High level of 1,3‐propanediol production from crude glycerol by Clostridium strain BOH3: Critical roles of inoculum and substrate concentration J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-27 Gobinath Rajagopalan, Akanksha Jain, Venkata Giridhar Poosarla, Chandraraj Krishnan, Kun Lin Yang
BACKGROUND1,3‐Propanediol (PDO) is a raw material/specialty chemical/additive in several industrial applications. A new wild‐type Clostridium strain BOH3 can utilize crude glycerol (CG) and produce PDO. This investigation reveals its potential for PDO production from CG.RESULTSInitially, inoculum of strain BOH3 was cultured from reinforced clostridial medium (RCM) with glucose (medium‐A), and modified‐RCM
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Catalytic role of biogenic gold nanoparticles in improving Cr(VI) removal efficiency of biocathode microbial fuel cells J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-25 Shien Tang, Xinglei Zhuang, Wanqi Zhao, Jinhua Liang, Yang Zeng, Fengxue Xin, Weiliang Dong, Honghua Jia, Xiayuan Wu
BACKGROUNDBiogenic metal nanoparticle‐modified electrodes have a promising prospect for improving the efficiency of microbial fuel cells (MFCs) for hexavalent chromium (Cr(VI))‐containing wastewater treatment. In this study, a graphene (GO) electrode was modified with chemical gold nanoparticles (ChemAu) and biogenic gold nanoparticles (BioAu), respectively, and the two modified electrodes were then
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Degradation of phenol and sulfamethoxazole with persulfate and ozone with nano‐MnO2–biochar composites J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-20 Seok‐Young Oh, Hyungwoo Lee, Kwang‐Sun Ryu
BACKGROUNDIn this study, nano‐MnO2–biochar composites were synthesized as catalysts to promote the oxidation of recalcitrant organic contaminants. The MnO2 nanoparticles coated on biochar were hypothesized to enhance the oxidation of phenol and sulfamethoxazole (SMX) using ozone and/or persulfate.RESULTSThe optimal percentage of MnO2 coating on the surface of biochar was determined, and the synthesis
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Research on oil recovery of oily sludge by subcritical/supercritical hydrothermal upgrading J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-20 Yuanwang Duan, Shuzhong Wang, Chao He, Fan Zhang, Yulong Wang, Yanhui Li
BackgroundSub/supercritical hydrothermal treatment is a promising technology for efficient resource utilization and complete harmlessness of oily sludge, which is significant for promoting the green and sustainable development of the petroleum industry. In this paper, the effects of reaction temperature, reaction pressure, reaction time, and oil content on oil recovery and oil quality (Composition
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Experimental Investigation on Non‐toxic Solvents for Separation of Vanillic Acid J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-19 Dhanush Shylaja Eshwar, Fiona Mary Antony, Anuj Kumar, Kailas Wasewar
BackgroundVanillic acid, an aromatic carboxylic acid and a derivative of vanillin, is used as an additive in fast‐moving consumer goods for its aroma. Previously, the majority of the vanillic acid was produced through a petrochemical route, but due to stringent environmental policies, it is now produced by the biotransformation of ferulic acid. Vanillic acid is also found in the waste‐water streams
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Correction to “Application of pilot‐scale molecular distillation for enrichment of phytonutrients from a novel deodorizer distillate of the margarine and shortenings industry” J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-18
Maziero EV, Moro F, Ballus AC, Tanabe EH and Bertuol DA, Application of pilot-scale molecular distillation for enrichment of phytonutrients from a novel deodorizer distillate of the margarine and shortenings industry. J Chem Technol Biotechnol 99:120-132 (2024). https://doi.org/10.1002/jctb.7515 In the published article: Analytical methods VODDA and VODDB were characterized according to the norms of
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Photocatalytic bio‐inspired PDA‐RGO/g‐C3N4 nanocomposite incorporated PES membrane for removal of environmental antibiotic pollutants J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-13 B. Govardhanan, S.A. GokulaKrishnan, G. Arthanareeswaran, M. Ashok, Yong‐Song Chen, W. Taweepreda
BackgroundThe direct operation method of membrane technology makes it more suitable for the treatment of environmental polluted organic wastewater. Membrane fouling is one of the major concerns in the commercial membrane, to overcome this issue, photocatalytic nanomaterials are embedded into the membrane to enhance its surface nature and reusability. In this investigation, polydopamine functionalized
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Retrofitting a poorly designed system into a full performing nitrogen-removal activated sludge process—a scientific challenge J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-08 Derin Orhon, Zübeyde Özkaya, Bülent Solmaz, Seval Sözen
This study intended to detect the inherent deficiencies of prescription-type empirical design procedures often adopted for nitrogen -removal activated sludge systems. Principles of process stoichiometry and kinetics were used to identify a series of hotspots that were likely to impair and disrupt system performance and efficiency. Available data, derived from an existing plant subject to a similar
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An overview of prominent factors influencing the photocatalytic degradation of cationic crystal violet dye employing diverse nanostructured materials J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-08 Shaila Shabna, Christopher John Clement Singh, Sathiya Dhas Sahaya Jude Dhas, Selvamani Chellappan Jeyakumar, Chellaswamy Saraswathy Biju
Crystal violet (CV), a cationic dye, has been demonstrated to be a powerful carcinogen, a mitotic toxin and poisonous to mammalian cells such that the predominant presence of the dye invariably causes several effects of destruction to mankind and it necessitates a clarion call to do away with this nuisance before it can produce a snowball effect. The recent widespread reporting of the photocatalysis‐mediated
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Immobilization: the promising technique to protect and increase the efficiency of microorganisms to remove contaminants J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-08 Aya A. Najim, Ahmed Y. Radeef, Ibrahim al‐Doori, Zaid H. Jabbar
Biodegradation is one of the most economical methods and usually no production of toxic by‐products. In general, this approach is favored because it offers reduced expenses and the potential for complete mineralization. In order to enhance the viability and longevity of the bioremediation agents within polluted areas, it becomes necessary to immobilize the cells. Cell immobilization refers to the procedure
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Adsorption equilibrium, kinetics and dynamic process of polyphenols from orange peel extract on mixed-mode adsorption resin HD-1 J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-07 Shengping Wang, Pengfei Jiao, Bingxue Dong, Qiuhong Niu
The extraction and separation of natural polyphenols are attractive. Many researchers used high-speed counter-current chromatography to separate and purify polyphenols. However, it requires a long operating time, a large amount of organic solvent consumption, and high operating costs. In this work, the adsorption behaviors of polyphenols from orange peel extract on mixed-mode resins were studied. The
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Nanoparticles for the synthesis of bio-based chemical 5-Hydroxymethyl furfural from agricultural waste and biomass-derived carbohydrates-A review J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-05 Anjali, Sravanthi Veluturla, R Saranya, S Vijaya Lakshmi, K M Hemanth
The need for 5-Hydroxymethylfurfural (HMF) has garnered significant attention owing to its versatile applications in the chemical industry as a precursor for biofuels, pharmaceuticals and fine chemicals. This abstract summarizes a complete review on the synthesis of HMF using heterogeneous catalyst from agriculture waste and various biomass-derived carbohydrates, focusing on their efficiency, selectivity
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Conceptual methods for synthesis of reactive distillation processes: recent developments and perspectives J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-04 Anton A Kiss, Rahma Muthia, Isabel Pazmiño-Mayorga, Jan Harmsen, Megan Jobson, Xin Gao
Reactive distillation (RD) is a process intensification technique that offers major advantages over conventional technologies by enabling the integration of reaction and separation into a single apparatus. This integration introduces and exploits complex interaction between mass transfer, chemical reaction and hydrodynamics within an RD column; however, these complexities can hinder the adoption of
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Removal of bentazone using activated carbon from spent coffee grounds J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-01 Bianca Caroline da Silva Rocha, Luiz Eduardo Zani de Moraes, Diego Espirito Santo, Ana Paula Peron, Débora Cristina de Souza, Evandro Bona, Osvaldo Valarini
This study aimed to produce activated carbon (AC) from spent coffee (Coffea arabica) grounds by chemical activation using zinc chloride (ZnCl2) and nitric acid to remove bentazone from aqueous solutions.
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Methanol excretion by Methylomonas methanica is induced by the supernatant of a methanotrophic consortium J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-01 Geovanni Avila-Nuñez, Alexis Saldivar, Patricia Ruiz-Ruiz, Sergio Revah
Methanotrophs play an important role in mitigating methane (CH4) emissions in ecosystems. They closely interact with other microorganisms forming communities where the cross-feeding of metabolites, presumably methanol (MeOH), is essential for the growth and activity of non-methanotrophs. The experiments in this study were focused on investigating the effect of adding the supernatant from a methanotrophic
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Improvement of the enantioselectivities of Mandyphos-Pd complexes by introducing groups with different steric and electronic properties J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-03-01 Xiong Liu, Shuping Qin, Hou Wang, Yanning Yang, Xiang Tang
Mandyphos-Pd has been proven to be a good chiral extractant to enantioseparate 3-chlorophenylglycine enantiomers with a separation factor of 2.64. However, this extractant is not suitable to enantioseparate other amino acids with separation factors of <2.0. The poor versatility has limited its practical application in chiral extraction.
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Effect of acetate and methanol on the kinetics of total dissolved selenium removal in a chemostat J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-28 Elnaz Mohammadi, Susan A. Baldwin
BACKGROUNDCarbon source consumption in industrial bioreactors removing soluble Se contributes to the operating cost and can influence the rate of removal. This study used a laboratory chemostat to investigate the dependency of the rate of dissolved Se removal on the concentration of acetate and methanol, two carbon sources used in treatment of Se containing mine‐influenced water. It was hypothesized
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Efficient degradation of methyl orange in wastewater via bio-electro-Fenton system: optimization, pathway investigation and process evaluation J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-26 Wen Wang, Qiannan Wang, Yuying Peng, Vagelis G. Papadakis, Maria A. Goula, Xiaoyue Li, Tianze Xie, Ziyi Yang
The efficient and green technology of dye removal has been widely investigated. In this study, a bio-electro-Fenton system was used to degrade methyl orange (MO). For the system optimization, five experimental groups were detected, including pH (1–6), iron (Fe2+) concentration (3–15 mmol L−1), airflow rate (0–20 mL min−1), external voltages (0.2–1.0 V) and initial MO concentration (20–100 mg L−1).
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Purification, characterization and study of blue fluorescent substance in caffeine J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-21 Li Yang, Jincai Yue, Bo Zhou, Shiqing Zheng
Caffeine, a xanthine alkaloid compound, is a stimulant of the central nervous system and is mainly used in the pharmaceutical and food industries. Because caffeine is directly absorbed into the body, Chinese pharmacopeia has high requirements on the quality of caffeine products, and fluorescence has always been an important indicator to measure the quality of caffeine. In this study, a major fluorescent
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Thiocarbamoyl sulfamic acid-derived mesoporous silica: a comprehensive study on selective adsorption of cobalt and lithium from spent lithium-ion batteries J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-21 Huda M Younis
The recycling of spent lithium-ion batteries (LIBs) is crucial for resource conservation and environmental sustainability, particularly due to the valuable metals they contain, such as cobalt and lithium. This study focuses on developing an ion-exchange method for cobalt recovery from waste LIB solutions, using a mesoporous silica derivative of carbamoyl sulfamic acid (PST-SA) as the adsorbent.
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Maximizing methyl red dye removal efficiency: a targeted parameter approach J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-21 Uma Sankar Behera, Sourav Poddar, Hun-Soo Byun
Liquid–liquid extraction plays a crucial role in the chemical industry for obtaining valuable products. This research focuses on optimizing key parameters, namely dye removal percentage, solvent capacity and distribution coefficient, in the liquid–liquid extraction of methyl red dye from its aqueous solution using benzene as the extractant. The study investigates the influence of key variables, including
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Photocatalytic performance of Nd/TiO2 and Nb/TiO2 nanomaterials in the degradation of p‐cresol at room temperature J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-19 J.E. de la Cruz‐de los Santos, D.S. García‐Zaleta, C. Encarnación‐Gómez, Z. Martínez‐Corona, R. López‐González, M.A. Álvarez‐Lemus, C.M. Morales‐Bautista, D. Palma‐Ramírez, A. Reyes‐Montero
BACKGROUNDThe degradation of organic pollutants, such as, p‐cresol, is a challenge for natural mechanisms, so the use of semiconductors as photocatalysts are useful to restore water quality. In this work, the effects of Nd and Nb doping on the structural and photocatalytic properties of TiO2 under UV irradiation were investigated.RESULTSXRD results displayed the formation of anatase, TiO2(B) and rutile
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Residence time distribution of continuous capture of recombinant antibody by precipitation and two stage tangential flow filtration J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-16 Gabriele Recanati, Narges Lali, Fernando De Mathia, Alois Jungbauer
The determination of the residence time distribution of an entire process or process step in integrated continuous biomanufacturing is required for process understanding, traceability determination and to efficiently handle process disturbances. When recombinant proteins such as monoclonal antibodies are captured by continuous precipitation and two-stage filtration, the question arises whether simple
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Study on the adsorption performance of amoxicillin by hydrothermally modified coconut shell activated carbon J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-16 Shuheng Zhao, Shang Wang, Jiatao Dang, Wei Wang, Xiangyu Wang, Menghao Wu, Jianjun Hu
Utilizing biowaste-derived carbon (C) materials to remediate antibiotic-rich wastewater has considerable ecological significance in the broader ecological cycle. In this study, coconut shell activated carbon (AC) was modified using a potassium hydroxide (KOH) hydrothermal method, and the influence of modified coconut shell AC on the adsorption of amoxicillin at different particle sizes and treatment
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Enhancing bioelectricity generation from wastewater in microbial fuel cells using carbon nanomaterials J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-15 Yasser A Attia, Mohamed Samer, Mahmoud SM Mohamed, Mohamed Salah, Elshaimaa Moustafa, R M Abdel Hameed, Hassan Elsayed, Essam M Abdelsalam
Microbial fuel cells (MFCs) offer a promising approach for treating wastewater and generating electrical energy simultaneously. However, their implementation in wastewater treatment plants is hindered by the limited electricity generation, often attributed to the electrolyte's high resistance. This study aimed to improve bioelectricity generation in MFCs by adding nanomaterials to the electrolyte to
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Synthesis of palladium nanoparticles utilizing biotemplates and investigation of their synergistic catalytic performance J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-15 Wei Xie, Miaomiao Chen, Chao Wu
Palladium nanoparticles can act as a shuttle to accelerate the extracellular electron transfer (EET) by exoelectrogens. Through the EET process, microorganisms drive the redox cycle of many substances. The palladium nanoparticle has a variety of catalytic activities and activities can be significantly improved by combining with the active effects of microorganisms.
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Chiral separation of terbutaline by supercritical fluid chromatography with peak purity determination by UPLC–MS and modeling for chiral recognition mechanism J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-15 Imran Ali, Syed Dilshad Alam, Rupak Raja, Arvind K Jain, Mohd Mustaqeem, Marcello Locatelli, Hassan Y Aboul-Enein, Kareem Yusuf
Terbutaline is the drug of choice for asthma patients but it exists in racemic mixture. (R)-(−)-terbutaline is 200 times more active than (S)-(+)-terbutaline yet it is not advisable to prescribe racemic mixture due to certain adverse effects of (S)-(+)-terbutaline. Therefore, a fast, effective and reproducible separation method is necessary.
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Amine-modified acid-activated attapulgite as efficient and stable adsorbents for CO2 capture from flue gas J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-13 Zhong He, Wenjie Liu, Kun Han, Jiangjun Hu
Fossil fuel power plants are the primary contributors to carbon dioxide (CO2) emissions, necessitating effective and stable methods for adsorbing CO2 from flue gas under diverse conditions. Achieving this remains challenging due to the complexity of flue gas compositions and the prolonged operation of adsorption processes.
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A novel approach to Hg2+ determination in water samples using carbon dots based on paper and fluorescence digital image analysis J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-13 Matheus Valentin Maia, Willian Toito Suarez, Vagner Bezerra dos Santos, Severino Carlos Bezerra de Oliveira, João Paulo Barbosa de Almeida
This work proposes the use of a simple, inexpensive method for the hydrothermal synthesis of fluorescent carbon dot nanoparticles (CDs) from rice starch aimed at the determination of Hg2+ in water. The proposed method involved using a paper-based analytical device coupled to a 3D plate, with a UV-LED chamber and a smartphone for the acquisition and analysis of the fluorescence digital images of the
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The correlation between the iodine value of coconut shell carbon and their reaction performance for NO2 to NO J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-13 Shifang Mu, Hongliang Wang, Yan Wang, Junchao Gu, Yujing Weng, Qi Sun, Yulong Zhang
The precise detection of nitrogen dioxide (NO2) requires the conversion of NO2 to nitric oxide (NO) using a molybdenum conversion furnace. Currently, molybdenum wire is utilized as the conversion agent for the molybdenum furnace; however, the high operating temperature of the molybdenum wire can inadvertently convert ammonia (NH3) in industrial exhaust gas to NO, potentially impacting the accuracy
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Effect of pore size distribution of biomass activated carbon adsorbents on the adsorption capacity J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-13 Qiren Wang, Tingyu Li, Haodong Tian, Die Zou, Jia Zeng, Shuang Chen, Hongmei Xie, Guilin Zhou
In order to investigate the correlation between the pore size distribution of biomass activated carbon adsorbents (BACAs) and VOCs (volatile organic compounds) adsorption/desorption performance. Four BACAs with same specific surface area but different pore size distribution were prepared under different experimental conditions and processes.
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Scrutinizing the antibacterial activity of poly (1-vinyl-3-alkyl imidazolium) ionic liquids: experimental and computational approach J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-12 Itishree Panda, Santosh Kumar Behera, Rajashree Sahoo, Sangram Keshari Samal, Sanghamitra Pradhan
Antimicrobial resistance has become a serious concern and threat to global health. This has triggered the need for the design of new antimicrobials. In this study, poly-ionic liquid (PIL) homopolymers have been designed by varying the alkyl chain lengths to evaluate their pathogeneses against Gram-positive (Staphylococcus aureus) and Gram-negative bacteria (Escherichia coli).
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Synthesizing a transesterification catalyst via a condensation reaction and assessment of the mechanism using density functional theory J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-12 Jinxia Wang, Shuiqing He, Hong Yuan
A solid acid (SPEI–EN–OHCMs) having dendritic –NH2 groups was prepared via oxidation of hydrothermal carbon microspheres (OHCMs) followed by a condensation reaction with the –NH2 groups of polyethyleneimine and sulfonation. The mechanism by which –COOH groups on the surfaces of OHCMs reacted with these –NH2 groups was assessed using density functional theory (DFT).
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Preparation of catalyst of cobalt- and/or iron-doped strontium zirconate and its performance in removal of m-cresol using ozone as oxidant J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-08 Weijun Liu, Ankang Wang, Xunchen Li, Meirong Qi, Fuyuan Li, Liuqian Zhao, Xiaofei Chen, Yihan Lei, Lei Ma
Wastewater containing m-cresol has become a global water environmental problem because its degradation is difficult, and it is highly toxic to plants, animals, and humans. The heterogeneous catalytic ozonation process has been widely used in the treatment of environmental pollution, so it is very important to study efficient catalysts. Perovskite catalysts have been widely investigated and applied
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Photothermal dependence on catalytic activity and selectivity of HMF and benzyl alcohol oxidation over Pd/1D-TiO2 nanotubes J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-08 Likai Dai, Zheng Fang, Anxian Peng, Yunhong Chen, Yitong Liu, Huimei Chen, Rongjun Yan, Rencheng Zhou, Mingming Du
Photothermal catalytic oxidation technology for synthesis of high value-added chemicals has become a hot topic of research at home and abroad. As a special structure, titania (TiO2) nanotubes (Ti-NTs) possess larger specific surface area and adsorption capacity, which have shown great application prospects in photothermal catalytic oxidation.
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Polynomial approaches in improving accuracy of probability distribution estimation using the method of moments J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-07 Meltem Turan, Joakim Munkhammar, Abhishek Dutta
Determination of a probability density function is an area of active research in engineering sciences as it can improve process systems. A previously developed polynomial method-of-moments-based probability density function estimation model has been applied in the research to produce accurate approximations to both standard and more complex probability density functions. A model with a different polynomial
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Primary recovery strategies of low-molecular-weight toxins from Crotalus molossus nigrescens and Crotalus atrox using aqueous two-phase and three-phase partition systems J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-07 Calef Sánchez-Trasviña, David Melendez-Martínez, Emiliano González-Castañón, Armando Herrera-Ortuño, Alejandro Carbajal-Saucedo, Omar Lozano, Marco Rito-Palomares, Jorge Benavides, Karla Mayolo-Deloisa
Rattlesnake venoms are a complex source of different toxin families with biotechnological and biomedical applications. However, the complexity of the sample and the low abundance of some toxins can restrict their study and applications. Toxin isolation usually requires multiple chromatographic steps, implying elevated operative costs and processing times. This raises the need for recovery and enrichment
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Effect of iron powder on hydrogen sulfide reduction and phosphate removal in semi-continuous anaerobic digestion treating primary sludge J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-07 Seung-Jun Oh, Seung-Han Ha, Eui Jeong Noh, Seung Gu Shin, Johng-Hwa Ahn
To our best knowledge, no experimental study has previously investigated the simultaneous effects of adding Fe powder for the decrease of hydrogen sulfide (H2S) in biogas and the removal of phosphate (PO4-P) in continuous anaerobic digestion (AD). This study investigated the effects of iron (Fe) powder (5 g L−1) in AD to remove H2S and PO4-P. A comparative experiment was conducted using two semi-continuous-flow
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ZnO nanomaterials with enhanced antimicrobial activity obtained by Eichhornia crassipes aqueous extract-mediated synthesis J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-07 Rosendo López González, Mirian Hernández Gutiérrez, Ruth Lezama García, Sergio Alberto Gómez Cornelio, Carlos Lobato, Abraham Gómez-Rivera, Patricia Quintana Owen, Mayra Angélica Alvarez Lemus
Zinc oxide nanoparticles (ZnO NPs) were obtained through precipitation synthesis, using aqueous water hyacinth leaf extract (Eichhornia crassipes) under alkaline conditions. The effect of the extract on the physicochemical and antimicrobial properties of the ZnO was evaluated starting from concentrated extract (labeled as E100) and performing two dilutions of this concentrated extract at 50% and 25%
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Evaluation and control of energy-efficient processes for separating epichlorohydrin-oriented quaternary system J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-07 Fuqiang Qi, Junling Yang, Zhentao Zhang, Zhenqun Wu, Qiyue Ren, Huafu Zhang, Yanan Li, Yu Zhang
The direct epoxidation of allyl chloride is a clean and efficient synthesis method for producing epichlorohydrin (ECH), which is a crucial organic intermediate widely used in the fields of renewable energy and aerospace. However, the presence of multiple azeotropes in the synthesized product using this method complicates the separation process and results in high energy consumption. To efficiently
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Enzymatic Knoevenagel condensation in dual-functionalized water-mimicking ionic liquids and tertiary amide solvents J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-07 Hua Zhao, Chante' D Campbell
Knoevenagel condensation is an important tool for building carbon–carbon (CC) bonds, especially when catalyzed by enzymes to enable a potentially high chemo-, regio- and/or stereoselectivity. Although many Knoevenagel condensation reactions are carried out in aqueous solutions, insoluble hydrophobic substrates often lead to poor catalytic efficiencies. The use of water-miscible organic solvents improves
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Ethanol production from sugarcane bagasse by modified PDMS membrane in a membrane bioreactor: pervaporation technique J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-07 Behzad Zabihi, Mehri Esfahanian
Bioethanol is considered a highly promising alternative to fossil fuels due to its derivation from renewable sources. Reducing the disadvantages of conventional fermentation requires removing the product from the fermentation broth after its formation. Therefore, coupling the membrane separation with a biological process in a single unit leads a reduction of substrate and product inhibitions.
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Novel cyano functional small molecule photosensitizers with amplified electron injection and photovoltaic attributes: molecular modelling towards efficient dye-sensitized solar cells J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-07 Sehar Nadeem, Muhammad Usman Khan, Riaz Hussain, Faiza Shafiq, Norah Alhokbany
The exploration of novel photosensitizers with reverberant optoelectronic features for dye-sensitized solar cells (DSSCs) is a frontline area of research. In this respect, attempts have been made to design a series of novel organic dyes (JFK-1–JFK-10) with D-π-A framework by π-spacer modification strategy. The suitability of developed sensitizers for DSSCs applications is confirmed by executing natural
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Experimental and computational studies on isolation of cardanol from cashew nut shell liquid using diethanolamine-based deep eutectic solvent at different molar ratios J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-06 Vichitra Malaiyarasan, Deeva Devakumar Vethakkan J, Anantharaj Ramalingam, Varshith Vijayan Nithya
Amine-based deep eutectic mixtures composed of choline chloride and a DEA-based hydrogen-bond donor (HBD) can be used in various molar ratios such as 1:2, 1:3, 1:4, 1:5, 1:6 and 1:7 for isolation of cardanol from cashew nut shell liquid (CNSL).
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Variable-volume accelerated system to evaluate the carbaryl biodegradation dynamics of a microbial community by differential analysis J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-06 Cristian Pérez-Suárez, Nora Ruiz-Ordaz, Juvencio Galíndez-Mayer, Fortunata Santoyo-Tepole, Cleotilde Juárez-Ramírez
One of the continuous cultivation methods for acquiring quantitative data on microbial metabolism under various environmental conditions within a single experiment is the accelerostat culture system (A-stat). It allows the rapid analysis and quantitative evaluation of the effect of environmental on the functional response of microorganisms, which is reflected by the cultural biokinetic parameters.
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Characterization of a biosurfactant produced by Peruvian strain Pseudomonas aeruginosa 6K-11 J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-03 Pepe Martin Obregon-Maldonado, Fernando Abilio Merino-Rafael, Susana Mónica Gutiérrez-Moreno
The oil industry has a big impact on the environment by itself and by using chemically synthesized surfactants. Biosurfactants are an ecofriendly alternative, especially rhamnolipids produced by Pseudomonas aeruginosa. Rhamnolipids in a determined concentration decrease the liquid surface tension, and this allows access oil hydrocarbon to be degraded. The objective of this research is to characterize
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Efficient and selective separation of Re(VII), an analogue of Tc(VII), by a defective biochar with honeycomb-like porous structure J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-02 Hui Hu, Sizhuo Yu, Tian Wang, Chenguang Lv
In this study, a defective biochar with honeycomb-like porous structure (BC-PH) was successfully prepared by the activation of pristine biochar derived from bamboo shoot shell with the chemical reagent KOH, and was applied to selectively separate ReO4− (a chemical analogue for radioactive TcO4−) from acidic solutions.
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Decrypting solvent-free microwave as a dual green extraction: studying simultaneous extraction of essential oil and phenolics from the same biomass – valorization and outperforming traditional approaches J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-02 Souvik Mukherjee, Kavi Bhushan Singh Chouhan, Vivekananda Mandal
The current research work focuses on the sustainable utilization of plant biomass so that two separate classes of phytocompounds (volatile and non-volatile principles) can be extracted from the same biomass simultaneously. The hydro-diffusion and gravity variant of solvent-free microwave-based extraction (MHG-SFME) was attempted for the extraction of Piper betle L. essential oil (PBEO).
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Hydrogenolysis of biomass-derived levulinic acid to produce 1,4-pentanediol over Co/ZrO2 catalyst J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-02 Dingshuo Zhang, Heqian Zhang, Yue Li, Daolai Sun, Jianhua Lv
Levulinic acid is an important platform chemical derivable from lignocellulosic biomass. In this work, the hydrogenolysis of levulinic acid to produce 1,4-pentanediol was performed over some Co-based non-noble catalysts. The relationship between the catalyst properties and the catalytic activity was investigated, and the effects of the reaction conditions on the catalytic activity were studied.
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Lipid extraction of high-moisture sour cherry (Prunus cerasus L.) stones by supercritical carbon dioxide J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-02-01 Kai Kniepkamp, Massimiliano Errico, Miao Yu, Maria Cinta Roda-Serrat, Jelle-Geert Eilers, Michael Wark, Rob van Haren
Sour cherry (Prunus cerasus L.) stones are the major byproduct of the cherry industry and the efficient management of this biowaste can lead to achieving the food processing sustainability aimed at by the modern food industry. Despite its significant content of lipids, the valorization of cherry stone waste as feedstock for lipid extraction appears to be limited due to the high moisture content. This
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Thermal and alkaline pre-treatments of inoculum halt methanogenesis and enable cheese whey valorization by batch acidogenic fermentation J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-31 Maria Paula Giulianetti de Almeida, Camille Mondini, Guillaume Bruant, Julien Tremblay, David G. Weissbrodt, Gustavo Mockaitis
Carboxylates such as volatile fatty acids (VFA) can be produced by acidogenic fermentation (AF) of dairy wastes including cheese whey, a massive residue produced at 160.67 million m3 of which 42% are not valorized and impact the environment. In mixed-culture fermentations, selection pressures can favor AF and halt methanogenesis. In this study, inoculum pre-treatment was evaluated as a selective pressure
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Small-scale and scale-up bioleaching of Li, Co, Ni and Mn from spent lithium-ion batteries J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-31 Sandeep Panda, Seydou Dembele, Srabani Mishra, Ata Akcil, İsmail Agcasulu, Edris Hazrati, Aysenur Tuncuk, Pierre Malavasi, Stoyan Gaydardzhiev
A bioleaching process could offer the advantage of higher metal recovery in a sustainable manner even from lithium-ion battery (LIB) samples with very low metal concentrations. In recent years, there has been a significant increase in the use of secondary resources such as LIBs for various purposes including transportation, large-scale energy storage and use in portable devices.
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Partition of humic acids using alkaline aqueous two-phase systems constituted of alcohol and hydroxides J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-31 Fabiane M. Vieira, Filipe S. Buarque, Paula G.C. Gomes, Ranyere L. Souza, Cleide M. F. Soares, Maria H. A. Santana, Álvaro S. Lima
Humic acids (HAs) are macromolecules classified within the group of humic substances that are mainly related to the agricultural and environmental sectors, but they have attracted interest from the medicine, pharmaceutical and cosmetic industries. However, these latter sectors depend on developing extraction and purification technologies for adequate use. Thus, this paper aims to study the partitioning
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A comparative assessment of carbonaceous electrodes with diverse interfacial properties for H2O2 electrogeneration J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-31 Panagiota Petsi, Konstantinos V Plakas, Zacharias Frontistis, Anastasios J Karabelas
The present study investigates the in situ electrogeneration of H2O2 by the 2e− oxygen reduction reaction in an electrochemical flow cell using three commercially available cathodic electrode materials with different interfacial properties; that is, activated carbon felt (ACF), non-activated carbon felt (NACF) and gas diffusion electrode (GDE).
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Development of heterogeneous enzymatic cascades with a case study for a separable and recyclable system using a combination of magnetic and nonmagnetic supports J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-31 Elizabeth CHT Lau, Rhona M Cowan, Kimberley C Dodds, Catherine McKenna, Alexey Y Ganin, Dominic J Campopiano, Humphrey HP Yiu
In recent years, energy and environmental issues have become more topical as the public have become more conscious about the fragility of the planet we live in. Biocatalysis can have a strong impact on these issues as most enzymes are operated at low energy and solvent-free environments with often high conversion, activity and selectivity. Enzymatic cascades are multistep reactions that can produce
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Assessing various CO2 utilization technologies: a brief comparative review J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-30 Zafar Turakulov, Azizbek Kamolov, Adham Norkobilov, Miroslav Variny, Guillermo Díaz-Sainz, Lucia Gómez-Coma, Marcos Fallanza
Carbon dioxide (CO2) utilization technologies have emerged as a promising approach to address the direct and indirect consequences of climate change and the need for sustainable resource management. Those innovative technologies aim to capture and utilize CO2 by converting it into valuable products or directly using it as a chemical feedstock in various industries, thus, avoiding their release into
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Adsorption and partition of the antibiotic ciprofloxacin in poultry litter J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-30 Leticia Maria Effting, Renata Mello Giona, Ismael Laurindo Costa Junior
The use of antibiotics on a large scale is a common practice in poultry farming. This research investigated the adsorption of the antibiotic ciprofloxacin (CIP) in poultry litter samples to assess the potential risk to ecosystems as a result of the compound mobility. This residue is used directly dispersed in agricultural soils as a biofertilizer.
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Electrochemical analysis of harmful dichlorvos insecticides based on a high-performance composite sensor J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-25 Songlin Luo, Mengdie Su, Xin Yang, Zhiming Ning, Hongjie Liu, Shaopeng Wang, Liwei Wang
Organophosphorus pesticides (OPs) were used in large quantities, and pesticide residues have caused different degrees of environmental pollution. Because the current laboratory detection techniques cannot meet the requirements of quickly and accurately monitoring pesticide concentration, there is an urgent need for a portable and accurate method to trace pesticide residues. This paper reports an effective
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Optimization of mineral nutrients to improve rhamnolipid production by Pseudomonas aeruginosa 6 K-11 J. Chem. Technol. Biotechnol. (IF 3.4) Pub Date : 2024-01-23 Miguel Angel Alcalde, Fernando Abilio Merino-Rafael, Susana Mónica Gutiérrez-Moreno
Rhamnolipids are biosurfactants that have their main application in bioremediation processes. They are able to increase the biodegradation and detoxification rates from industrial effluents. The north of Peru and Iquitos have been not only major oil producers but also have been responsible for oil spills. This study therefore focused on the optimization of mineral nutrients such as nitrogen, phosphorous