摘要
以刺梨籽为原料,采用超声辅助溶剂浸提法制备刺梨籽油,探究不同提取溶剂对其理化指标、内源抗氧化物含量、脂肪酸组成成分及抗氧化活性的影响。结果表明:用极性溶剂制备的刺梨籽油品质虽不及非极性溶剂制备的,但内源抗氧化物(总酚、总黄酮)含量远高于用非极性溶剂制备的刺梨籽油。溶剂种类对脂肪酸的组成和相对含量影响较小,刺梨籽油中不饱和脂肪酸质量分数高达90.94%,主要以亚油酸(46.08%~46.78%)和亚麻酸(43.46%~44.86%)为主。不同提取溶剂制备的刺梨籽油均具有良好的抗氧化活性,且极性溶剂制备的刺梨籽油对DPPH·、ABTS^(+)·、·OH清除率及还原能力均高于非极性溶剂。因此,极性溶剂制备的刺梨籽油具有更高的营养保健价值,可作为功能性油脂进行开发利用。
Rosa roxbirghii Tratt seed was used as the raw material,ultrasonic-assisted solvent extraction was used to extract Rosa roxburghii Tratt seed oil,and the effects of different extraction solvents on its physical and chemical indexes,endogenous antioxidants content,fatty acid composition and antioxidant activity were investigated.The results indicated that the quality of Rosa roxburghii Tratt seed oil prepared by polar solvents was inferior to that prepared by nonpolar solvents,but the endogenous antioxidants content(total phenol,total flavonoids)of Rosa roxburghii Tratt seed oil prepared by polar solvent was much higher than that of Rosa roxburghii Tratt seed oil prepared by nonpolar solvent.The type of solvent had little influence on the composition and relative content of fatty acids.In Rosa roxburghii Tratt seed oil,the mass fraction of unsaturated fatty acids were as high as 90.94%,mainly linoleic acid(46.08%~46.78%)and linolenic acid(43.46%~44.86%).Rosa roxburghii Tratt seed oil prepared by different extraction solvents had good antioxidant activity,and the scavenging rate of DPPH·,ABTS^(+)·,·OH and reduction capacity of Rosa roxburghii Tratt seed oil prepared by polar solvents were higher than those of nonpolar solvents.Therefore,Rosa roxburghii Tratt seed oil prepared by polar solvent had higher nutritional and health care value,and could be developed and utilized as functional oil.
作者
毕会敏
范方宇
胡青
Bi Huimin;Fan Fangyu;Hu Qing(College of Life Science,Southwest Forestry University,Kunming 650224)
出处
《中国粮油学报》
CSCD
北大核心
2023年第7期115-122,共8页
Journal of the Chinese Cereals and Oils Association
基金
国家自然科学基金项目(31760470)
西南林业大学科研启动基金项目(YNWR-QNBJ-2018-046)。
关键词
刺梨籽油
内源抗氧化物
脂肪酸组成
抗氧化活性
Rosa roxburghii Tratt seed oil
endogenous antioxidants
fatty acids composition
biological active