鸡爪绵核桃种仁主要营养成分分析_时燕 . Analysis of Main Nutrient Components of Jizhaomian Walnut

Abstract

118 Jizhaomian walnut samples from 3 main producing areas in Shandong Province were used to test protein content,fat content,amino acid contents and fatty acid composition.Results:The average protein content is 17.19 g/100 g(ranging from 13.31 to 21.72 g/100 g),with variation coefficient of 8.82%;the average fat content is 62.87 g/100 g(54.18 to 68.32 g/100 g),variation coefficient 4.59%.The kernels contain 17 kinds of amino acid total 18.73 g/100 g,including seven essential amino acids total 5.49 g/100 g,accounting for 29.16% of the total amino acid content.The kernels contain mainly palmitic acid,stearic acid,oleic acid,linoleic acid,and α-linolenic acid.The total unsaturated fatty acids account for 90.98% of the total fatty acids,and 69.47% of the unsaturated fatty acids are linoleic acid.