Nutritional Analysis of Qianjiang Kidney Bean

The contents of major nutritional components and minerals of Qianjiang kidney bean were analyzed.Its crude protein content was 23.35%,the protein content was 14.28%,the total amino acid content was 17.0%,and the total essential amino acid content was 6.9%.Its crude fat content was 1.28% and unsaturated fatty acids accounted for 83.0% of the total fatty acids,in which the contents of oleic acid,linoleic acid and α-linolenic acid were 52.6%,8.2%,22.2%,respectively,being higher than those of other legumes,such as soybean,black soybean,cowpea and chickpea.The total sugar content was 53.47%,among which reducing sugar content was 1.70%,starch content was 51.77% and crude fiber content was 3.47%.The contents of the mineral elements Fe,Zn,Ca,K,Mg,Mn,Cu and P in the Qianjiang kidney bean were 68.2 μg/g,42.9 μg/g,10.3 μg/g,7.3 mg/g,1.8 mg/g,16.5 μg/g,9.4 μg/g and 2.62 mg/g,respectively.In conclusion,Qianjiang kidney bean is especially rich in α-linolenic acid,which is of great nutritional value,and therefore is worthy of further development and utilization.