Quality Analysis and Evaluation of Main Cultivated Quinoa Varieties in Different Regions
To study the quality traits of different quinoa varieties,6 main quinoa varieties(lines)cultivated in major quinoa growing regions of China were selected for analysis.The results showed that there were significant differences in the main quality traits of quinoa varieties(lines)cultivated in different regions.The protein content of Gansu quinoa(Longli 4)was slightly lower than that of Inner Mongolia quinoa(Mengli 1).The total saponin content and total dietary fiber content varied greatly,with Inner Mongolia quinoa having the highest total dietary fiber content(110.2 g/kg)and Shanxi quinoa the lowest(LM3,69.0 g/kg).The total saponin content was highest in Qinghai quinoa(GRM-1,168.6 g/kg)and lowest in Hebei quinoa(LM1,97.5 g/kg).The range of ether extract was not large,with Qinghai quinoa having the highest(GRM-1,63.3 g/kg)and Shanxi quinoa the lowest(LM3,54.0 g/kg).Starch and ash contents did not show significant variations.Correlation analysis revealed that protein was positively correlated with moisture(P<0.01),total dietary fiber(P<0.5).Total saponin content was negatively correlated with ash content(P<0.01).Total dietary fiber was highly significantly negatively correlated with starch.Starch was negatively correlated with fat content(P<0.01).Cluster analysis found that the quality of Gansu quinoa(Longli 4)was more similar to that of Yunnan quinoa(LM2)and Inner Mongolia quinoa(Mengli 1),and most different from that of Hebei quinoa(LM1).This indicates that Gansu quinoa(Longli 4)has similar potential for processing,functional ingredient extraction,and related product development as Yunnan quinoa(LM2)and Inner Mongolia quinoa(Mengli 1).