Evaluation on Nutrition of Fatty Acids and Amino Acid of Walnut in the Southern Xinjiang

Soxhlet extraction method was used to obtain 25 oil samples,and GC - MS was used to measure the content and fatty acid composition;the soluble protein content was determined by Coomassie Brilliant Blue G- 250; Ninhydrin the total of free amino acids was measured by ninhydrin solution staining method;the content of fattly acid and compsition of the walnut were discussed and its portein and nutrition of amino accids were analyzed.The results showed that there were high content of walnut oil in walnut(an average of 52.64%),walnut oil to unsaturated fatty acids as the main components,the average percentage of total fatty acids was 80.39%,low saturated fatty acids (2.66%) and palmitic acid content was low(2.66%);walnut kernel average soluble protein content(7.67 mg/g):free amino acid in the average(7.44 mg/g).