Comparative of 7 Different Varieties of Chenopodium quinoa

The contents of nutrients,amino acids and mineral elements in different varieties of Chenopodium quinoa were determined and analyed by using Longli NO.1,Shangri-La white quinoa,Shangri-La red quinoa,Shangri-Lai black quinoa,Taiqi white quinoa,Taiqi red quinoa and Taiqi black quinoa as materials.The results showed that there were differences in the nutritional content of 7 different varieties of quinoa,the protein content of Taiqi black quinoa was 16.52 g/100 g,the fat content was 3.38 g/100 g,the total dietary fiber content was 11.07 g/100 g,which was character as high protein,low fat,high total dietary fiber. And Taiqi black quinoa was more suitable for the needs of weight loss or vegetarianism group. Quinoa was rich in amino acids,mainly glutamate,arginine and aspartic acid,tyrosine,histidine and methionine content was low. The main amino acids(glutamic acid,arginine and aspartic acid)of Longli NO.1 and Shangri-La red quinoa were higher than other varieties,and the content of essential amino acid(EAA)was also significantly higher. The results of scoring the essential amino acids showed that the score of essential amino acids of the Taiqi white quinoa and Shangri-la red quinoa were the best,which were more suitable for infants. Moreover,quinoa was rich in mineral elements,K,Ca,Cu,Mg content in 7 varieties quinoa was higher than wheat,rice and millet,especially the K content of Shangri-Lai black quinoa was up to 12037 mg/kg,and Na content in which was undetected. So as to,the quinoa was character as high potassium and low sodium and Shangri-Lai black quinoa was more suitable for the elderly. This research provides a basis for the selection of quinoa varieties for development a specific group of quinoa functional food.