期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 188, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.indcrop.2022.115586
关键词
High-pressure supercritical carbon dioxide extraction; Idesia polycarpa oil; Response surface methodology; Nutritional ingredients; Fatty acids; Physicochemical indices
资金
- National Key Research and Development Plan [2017YFC1703102]
High-pressure supercritical carbon dioxide extraction (HPSE) was used to extract oil from Idesia polycarpa, and the effects of extraction pressure were investigated. The results showed that HPSE could improve the extraction yield, nutritional ingredients content, and antioxidant activity of the oil.
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 gamma-tocopherol, DL-alpha-tocopherol, beta-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.
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