摘要
目的:研究猫屎瓜籽油(Decaisnea Insignis seed oil,DIO)溶剂法提取的最佳工艺,猫屎瓜籽油的理化性质、脂肪酸组成。方法:利用响应曲面法(response surface methodology,RSM)建立溶剂法萃取猫屎瓜籽油的数学模型,获得最佳萃取工艺;利用气相色谱-质谱法测定猫屎瓜籽油中脂肪酸组成及含量。结果:最佳工艺条件:提取温度77℃、提取时间8h、料液比(g/mL)1:20,此条件下提取率28.14%;猫屎瓜籽油中单不饱和脂肪酸相对含量75.44%,其中棕榈油酸相对含量59.75%、9-油酸相对含量14.81%、8-油酸相对含量0.88%。结论:溶剂法提取猫屎瓜籽油油脂品质好;猫屎瓜籽油中单不饱和脂肪酸尤其是棕榈油酸含量高,可作为棕榈油酸的新油源。
Objective：To study the optimum conditions of solvent extraction of Decaisnea Insignis seed oil（DIO）,physicochemical property of DIO,compositions of fatty acid.Method：Response surface methodology（RSM）was used to establish the mathematical model of solvent extraction extraction of DIO to obtain the optimum conditions.Fatty acid compositions and contents of DIO were tested by gas chromatography mass spectrometry（GC-MS）.Results：The optimum conditions obtained through RSM analysis were as follows：extraction temperature was 77℃,extraction time was 8h and material to solvent ratio was 1：20.The average yield of DIO was 28.14%.The relative content of monounsaturated fatty acid in DIO was 75.44%,where palmitoleic acid was 59.75%.9-oleic acid was 14.81%,8-oleic acid was 0.88%.Conclusion：These results suggested that DIO quality form solvent extraction was well.Monounsaturated fatty acid especially palmitoleic acid content of DIO was high.DIO could be used as a good source of palmitoleic acid.
出处
《食品工业科技》
CAS
CSCD
北大核心
2012年第15期236-241,共6页
Science and Technology of Food Industry
基金
陕西省"13115"科技创新工程重大科技专项(2009ZDKG-05)
教育部大学生创新实验计划资助项目(091071801)
陕西师范大学研究生培养创新基金(2012CXS031)
关键词
猫屎瓜籽油
响应曲面
气相色谱-质谱法(GC-MS)
棕榈油酸
Decaisnea Insignis seed oil
response surface
gas chromatography-mass spectrometry（GC-MS）
palmitoleic acid
