不同温度处理下毛梾籽油的理化性质及脂肪酸组成分析

Maolai Seed Oil under Different Temperature Treatment of Physical and Chemical Properties and Fatty Acid Composition Analysis

该研究对毛梾籽油的理化性质、脂肪酸组成与含量以及维生素组成进行分析,并对其进行不同程度的热处理,对其热处理稳定性进行评估。结果显示:毛梾籽油折光指数为1.47,相对密度为0.92,酸价为0.76 mg/g,过氧化值为0.191 g/100 g,皂化值为194 mg/g,碘值为104.67 g/100 g,属于半干性油;不饱和脂肪酸质量分数为86.04%,并含有棕榈烯酸与反异油酸两种特有的单不饱和脂肪酸,具有良好的抗炎、改善肝脏葡萄糖稳态和脂肪酸氧化的功效;毛梾籽油含有4种构型的生育酚(α-、β-、γ-和δ-),其质量分数分别为9667.32,184.83,1678.76和186.01μg/100 g,在热处理过程中δ-生育酚稳定性最好,损失最少。毛梾籽油可作为食用油进一步开发利用。

Maolai,also known as Cheliangmu,was a woody oil crop.In this study,the physicochemical properties,fatty acid composition and content,and vitamin composition of Maolai seed oil were analyzed,and different degrees of heat treatment was performed to evaluate the heat treatment stability.The results showed that the refractive index of linoleum seed oil was 1.47,relative density was 0.92,acid value was 0.76 mg/g,peroxide value was 0.191 g/100 g,saponification value was 194 mg/g,iodine value was 104.67 g/100 g,and it was semi-dry oil;The content of unsaturated fatty acids was 86.04%,and it contained two unique monounsaturated fatty acids of palmitoleic acid and fulvanolic acid,which had good anti-inflammatory effects,improving liver glucose homeostasis and fatty acid oxidation;Maolai seed oil contained tocopherols in four configurations(α-,β-,γ-andδ-),and their contents were 9667.32,184.83,1678.76 and 186.01μg/100 g,respectively.During heat treatment,δ-tocopherol had the best stability and the least loss.Maolai seed oil could be further developed and utilized as edible oil.