摘要
采用超临界CO2萃取技术对芜菁籽油进行萃取,运用响应面法优化了工艺条件。结果表明超临界CO2萃取芜菁籽油的最佳工艺条件为:萃取压力31.65 MPa,萃取温度46.10℃,萃取时间80.40 min,在此条件下芜菁籽油得率为32.55%。芜菁籽油经气相色谱-质谱分析,饱和脂肪酸含量为7.70%,以棕榈酸(2.63%)为主;不饱和脂肪酸含量为88.35%,主要以芥酸(47.18%)、油酸(17.53%)和亚油酸(8.43%)为主。
Brassica rapa L. seed oil was extracted with supercritical CO2 , and response surface methodology was employed to optimize the process variables of three major factors （ pressure, temperature, time）. The optimum process parameters were obtained as follows：pressure 31.65 MPa, temperature 46.10 ℃, time 80.40 min. Under such conditions, the oil yield was 32.55%. GC - MS analysis showed that the total fatty acids of the oil were composed of 7.70% saturated fatty acids and 88.35% unsaturated fatty acids. Furthermore, erucic acid（47. 18% ） , oleic acid （ 17.53% ） ,linoleic acid （8.43%） ,and palmitic acid （2.63 % ） were the main fatty acids in Brassica rapa L. seed oil.
出处
《中国油脂》
CAS
CSCD
北大核心
2011年第2期43-47,共5页
China Oils and Fats
基金
公益性行业(农业)科研项目(200903018)
关键词
超临界CO2萃取
芜菁籽油
响应面法
GC—MS
supercritical CO2 extraction
Brassica rapa L. seed oil
response surface methodology
GC -MS
