Abstract
Orthogonal experiment was employed to optimize the extraction of linolenic acid from perilla seed by supercritical carbon dioxide extraction and the effects were investigated, such as extraction pressure, temperature, time and CO2 flow rate on main fatty acid composition contents. The results showed that the contents of palmitic acid and stearic acid were negatively correlated with extraction pressure and time, had a change trend of descend firstly then ascend coinciding with temperature and CO2 flow rate. Because the contents of oleic acid and linoleic acid had a change trend of descend firstly then ascend coinciding with CO2 flow rate. There was a positive correlation between the contents of linolenic acid and extraction pressure and time because the change trend of temperature and flow rate was increased at first and decreased later. The optimal extraction conditions for linolenic acid were found to be 40 ℃ for 120 min with CO2 flow rate 20 L/h under pressure 25 MPa, and the extraction rate of linolenic acid was 88.09% obtained under these optimal conditions. The perilla seed oil with the supercritical CO2 extraction can meet requirements of standard plants edible oil.
Publication Date
7-28-2016
First Page
166
Last Page
170
DOI
10.13652/j.issn.1003-5788.2016.07.038
Recommended Citation
Fuhua, FU; Zhaoping, PAN; Qiutao, XIE; and Xuebo, SHANG
(2016)
"Supercritical fluid extraction and quality analysis of perilla seed oil,"
Food and Machinery: Vol. 32:
Iss.
7, Article 38.
DOI: 10.13652/j.issn.1003-5788.2016.07.038
Available at:
https://www.ifoodmm.cn/journal/vol32/iss7/38
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