姜油树脂对油脂的抗氧化性及其稳定性研究

以姜油树脂为原料,研究其对油脂的抗氧化作用及其稳定性。结果表明:油脂中添加一定量的姜油树脂后,油脂的抗氧化能力得到了提高,但随着添加量的增大,体系过氧化值减小的幅度减少,添加量在100-150 mg/kg较为适宜。姜油树脂稳定性较好,在100℃,太阳光照射、酸性条件下呈现良好的稳定性,并可长期常温存储,但其在碱性溶液中不稳定。

Study on Antioxidation and Stabiliy of Ginger Oleoresin on Fat and Oil

Using ginger oleoresin as raw materials,this paper focused on antioxidation and stabiliy of ginger oleoresin on fat and oil.The results showed that when a certain quantity ginger oleoresin were added in oil,the antioxidation of oil were improved.But as the quantity enlarging,the system peroxide number decreased in descending extent.Generally,the suitable addition was 100 -150 mg/kg.The ginger oleoresin was stable under temperature 100 ℃,sunlight,acidic condition.However,it was not good in alkalinity,and could storage for long time.