摘要
研究亚临界R134a萃取太平洋磷虾油的萃取工艺,探讨萃取压力、萃取温度及动态萃取时间对磷虾油得率的影响,并采用气相色谱-质谱(GC-MS)联用技术对所萃取的磷虾油进行分析。结果表明:适宜萃取工艺条件为萃取压力12MPa、萃取温度30℃、动态萃取时间40min,在此工艺条件下,太平洋磷虾油得率为6.69%。通过GC-MS分析,太平洋磷虾油中含有20种脂肪酸,不饱和脂肪酸含量为62.35%,其中二十碳五烯酸(EPA)与二十二碳六烯酸(DHA)占总脂肪酸含量的21.82%。
The extraction of krill oil from Euphausia pacifica by subcritical 1,1,1,2-tetrafluoroethane（R134a） was studied and the extracted oil was then analyzed by GC-MS.The effects of three extraction parameters including pressure,temperature and dynamic extraction time on the yield of krill oil were explored.The maximum extraction yield of krill oil was 6.69% at the optimal extraction conditions as follows： 12 MPa,30 ℃ and 40-min dynamic extraction time.Twenty fatty acids including EPA and DHA were identified from the oil.The total yield of unsaturated fatty acids was as high as 62.35%,and the total yield of EPA and DHA was 21.82%.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2013年第14期96-99,共4页
Food Science
基金
山东省科技发展计划项目(2012GHY11528)
关键词
亚临界R134a
太平洋磷虾
脂肪酸
气相色谱-质谱法
subcritical R134a
Euphausia pacifica
fatty acid
gas chromatography-mass spectrometry（GC-MS）
