Extraction of lupeol from lupin hulls has been carried out using supercritical CO₂ extraction technology under different operating conditions in order to obtain value-added extracts from the raw material of industrial lupin. The operational parameters used include CO₂ pressure and flow and sequential depressurization fractionation. The highest lupeol recovery (96.8%) has been obtained using 320 bar and 50 g/min of CO₂. For sequential depressurization, the best results were obtained with a CO₂ density close to 728 kg/m³ providing up to 92% of lupeol in the extract and an enrichment factor of 1.2. Despite this high enrichment, lupeol recovery decreases to 50% after fractionation. Better extraction recoveries would have been expected and thus further studies are necessary to improve the extraction recovery of extracts with a high lupeol composition.

_{采用超临界CO 2}萃取技术，在不同操作条件下从羽扇豆皮中提取羽扇豆醇，以期从工业羽扇豆原料中获得高附加值的提取物。所使用的操作参数包括CO ₂压力和流量以及顺序减压分馏。使用320巴和50克/分钟的CO ₂获得了最高的羽扇豆醇回收率(96.8%) 。对于连续减压，当CO ₂密度接近728 kg/m ³时获得最佳结果，提取物中羽扇豆醇含量高达92%，富集系数为1.2。尽管富集度很高，但分馏后羽扇豆醇回收率仍降至 50%。预期会有更好的提取回收率，因此需要进一步研究以提高具有高羽扇豆醇成分的提取物的提取回收率。