超临界二氧化碳
萃取(化学)
产量(工程)
二氧化碳
超临界流体萃取
超临界流体
过程(计算)
制浆造纸工业
环境科学
化学
色谱法
材料科学
有机化学
工程类
计算机科学
操作系统
冶金
作者
Dan Zhou,Xue Zhou,Quan Shi,Jiangbo Pan,Huashu Zhan,Fahuan Ge
标识
DOI:10.1016/j.indcrop.2022.115586
摘要
High-pressure supercritical carbon dioxide extraction (HPSE) was used for extraction oil from Idesia polycarpa (I. polycarpa) at extraction pressure up to 65 MPa. A series of important process parameters were investigated by response surface methodology (RSM) to obtain high extraction yield. Under the optimum conditions, the highest extraction yield was 21.42 ± 0.31 %. The quality of oil was evaluated in terms of extraction yield, nutritional ingredients such as γ-tocopherol, DL-α-tocopherol, β-sitosterol and squalene, fatty acids profile, antioxidant activity and physicochemical indices of oil and compared to the oil obtained by lower extraction pressures at 35 MPa and 50 MPa, respectively. The results proved that HPSE could increase the I. polycarpa oil extraction recovery and improve the quality of oil with higher nutritional ingredients content, lower acid value and better antioxidant activity. Furthermore, it could not change the fatty acids composition and have no harmful ingredients under the high extraction pressure. • HPSE was first applied to extract I. polycarpa oil at extraction pressure of 65 MPa. • Optimization of the HPSE process was carried out by response surface methodology. • Higher tocopherols, β-sitosterol and squalene content in oils extracted by HPSE. • Oil obtained by HPSE had higher quality and antioxidant activity compared to low extraction pressure.
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