新疆和田地区薄皮核桃油脂肪酸成分分析_岳琳 . Fatty acid composition of thin-shell walnut oil in Hotan,Xinjiang

Abstract

Soxhlet extraction,ultrasonic extraction and microwave extraction were used to extract the oil from the thin-shell walnut of Hotan in Xinjiang,and gas chromatography-mass spectrometry(GC-MS)was explored to analyze the fatty acid compositions of the oil.The results showed that the oil extraction rate for the 3 extraction methods was over 62%.The main fatty acids in the walnut oil were linoleic acid(62.96%),oleic acid(19.95%),linolenic acid(7.55%),palmitic acid(5.42%),arachidonic acid(4.12%)and stearic acid(1.79%).The walnut oil was rich in unsaturated fatty acid.