油茶籽油中高油酸植物油掺假的快速检测方法验证

Rapid Test Method Verification of Adulteration of High Oleic Acid Vegetable Oil in Camellia Seed Oil

目的:采用GB/T5539—2008山茶油纯度试验方法验证油茶籽油中的高油酸植物油掺假情况。方法:以3个纯茶油和9个高油酸植物油建立0%、10%、20%、30%、50%、100%6个掺假梯度的掺假模型,采用GB/T5539—2008山茶油纯度试验法对模型进行测试,根据结果所显示颜色由浅及深赋予0~5六个得分等级,分析测试结果和规律。结论:山茶油纯度试验法适用于高油酸植物油的掺假检测适用,且随着掺假浓度的提高,结果所赋得分值越高,结果随之呈现梯度变化。该法对植物油检测的灵敏度存在差异性,高油酸菜籽油的灵敏性最高,高油酸葵花籽油的灵敏性最低。该研究为油茶籽油中高油酸植物油的掺假研究提供了一定的参考。

Objective:To verify the adulteration of high oleic vegetable oil in camellia seed oil by using GB/T 5539—2008 camellia oil purity test method.Methods:Three pure camellia oils and nine high oleic vegetable oils were used to establish an adulteration model with six adulteration gradients of 0%,10%,20%,30%,50%and 100%,and the purity test of camellia oil was used to test the model by GB/T 5539—2008 camellia oil purity test,and six scoring grades of 0~5 were assigned according to the color displayed in the results,and the test results and regularity were analyzed.Conclusion:The camellia oil purity test method is suitable for the adulteration detection of high oleic acid vegetable oil,and with the increase of adulteration concentration,the higher the score value assigned to the results,and the results show a gradient change.There were differences in the sensitivity of this method to vegetable oils,with the highest sensitivity of high-oleic rapeseed oil and the lowest sensitivity of high-oleic sunflower oil,which provided a certain reference for the adulteration of higholeic vegetable oil in Camellia oleifera seed oil.