In the present study, it was aimed to determine the effects of preharvest oxalic acid (OA) treatments on the biochemical content and quality of minimally processed leeks during storage. For this purpose, leeks were treated with solutions containing 0 (control), 1, 2 and 3 mM OA and 0.1% Tween-20 with a pump 6, 4 and 2 weeks before harvest. The packaged leeks were stored at 0 °C and 90 ± 5% relative humidity (RH) for 50 days. After the cold storage, the leeks were kept at 20 °C and 60 ± 5% RH for 3 days to determine the shelf-life. The effects of OA treatments on the weight loss, external appearance and bioactive compounds were remarkable. At the end of storage, the losses of ascorbic acid (AsA) content were determined as 55.53% in the control group and 22.89% in the 3 mM OA treatment. Similarly, the decrease in total phenolic (TP) content and antioxidant activity (AOA) in the control group was 37.34% and 45.70%, respectively, while these values were determined as 26.94% and 32.65% in the 3 mM OA treatment, respectively. With 3 mM OA treatment, the high dose in this study, the AsA, TP, and AOA contents of leeks were better preserved. The change in the external appearance scores at the end of cold storage was determined as 46.33% in the control group whereas it was determined between 31.44% (2 mM OA) and 42.55% (1 mM OA) in OA treatments. As a result, OA-treated and minimally processed leeks were successfully stored for 50 days at 0 °C and 90 ± 5% RH. Moreover, the efficacy of OA increased in a dose-dependent manner in the study.

在本研究中，目的是确定采前草酸（OA）处理对储存期间最低限度加工的韭葱的生化含量和质量的影响。为此，在收获前 6、4 和 2 周，用泵用含有 0（对照）、1、2 和 3 mM OA 和 0.1% Tween-20 的溶液处理韭葱。包装好的韭菜在0°C和90±5%相对湿度（RH）下储存50天。冷藏后，将韭菜在20℃、60±5%RH的条件下保存3天，以确定其保质期。OA治疗对体重减轻、外观和生物活性化合物的效果显着。储存结束时，对照组抗坏血酸（AsA）含量损失为 55.53%，3 mM OA 处理组损失为 22.89%。同样，对照组的总酚（TP）含量和抗氧化活性（AOA）分别降低了37.34％和45.70％，而3 mMO OA处理中的这些值分别为26.94％和32.65％。在本研究中的高剂量3 mM OA处理下，韭菜的AsA、TP和AOA含量得到了较好的保存。对照组冷藏结束时外观评分的变化为 46.33%，而 OA 处理组的外观评分变化在 31.44% (2 mM OA) 和 42.55% (1 mM OA) 之间。结果，经过 OA 处理和最低限度加工的韭菜在 0 °C 和 90 ± 5% RH 下成功储存了 50 天。此外，在研究中，OA 的功效以剂量依赖性方式增加。