Abstract：
:Supercritical carbon dioxide extraction (SC-CO(2)) of oil from desilked silkworm pupae was performed. Response surface methodology (RSM) was applied to optimize the parameters of SC-CO(2) extraction. The effects of independent variables, including pressure, temperature, CO(2) flow rate, and extraction time, on the yield of oil were investigated. The statistical analysis showed that the pressure, extraction time, and the quadratics of pressure, extraction time, and CO(2) flow rate, as well as the interactions between pressure and temperature, and temperature and flow rate, showed significant effects on oil yield. The optimal extraction condition for oil yield within the experimental range of the variables researched was at 324.5 bar, 39.6 degrees C, 131.2 min, and 19.3 L/h. At this condition, the yield of oil was predicted to be 29.73%. The obtained silkworm pupal oil contained more than 68% total unsaturated fatty acids, and alpha-linolenic acid (ALA) accounted for 27.99% in the total oil.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Wei ZJ,Liao AM,Zhang HX,Liu J,Jiang STdoi
10.1016/j.biortech.2009.04.010subject
Has Abstractpub_date
2009-09-01 00:00:00pages
4214-9issue
18eissn
0960-8524issn
1873-2976pii
S0960-8524(09)00369-1journal_volume
100pub_type
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