摘要
以西藏察隅龙爪稷为研究对象,对其营养成分、重金属含量与农药残留进行测定,并采用国际通用的评价方法对其营养进行评价。结果表明:龙爪稷籽粒蛋白质含量7.31%,脂肪含量1.2%;矿物质元素K、Ca、Mg、Fe、Zn含量分别为3 281.8 mg/100 g、2 259.5 mg/100 g、1 403.9 mg/kg、15.2 mg/kg与13.9 mg/kg,高于普通谷物;龙爪稷含有18种氨基酸,其中必需氨基酸8种,占氨基酸总量的39.80%,必需氨基酸评分60,必需氨基酸指数87.26,第一限制性氨基酸为赖氨酸;此外,龙爪稷中重金属As、Hg、Pb、Cd均未检出,188种农药未检出,食用安全性高。
The main nutritional components,heavy metal contents and pesticide residues in Eleusine coracana Gaertn were detected. The nutritional value of its protein was evaluated by internationally recognized methods. The results showed that the contents of protein,fat in E. coracana were 7. 31% and 1. 2% respectively; the contents of mineral elements K,Ca,Mg,Fe,Zn were 3 281. 8mg /100 g,2 259. 5mg /100 g,1 403. 9mg / kg,15. 2 mg / kg and13. 9 mg / kg respectively,which were higher than those in common grain. Mean while,it was found that E. coracana contains 18 kinds of amino acid,including 8 kinds of essential amino acid,the ratio of total amino acid was 39. 80%,the amino acid score and the essential amino acid index were 60 and 87. 26 respectively. The first limiting amino acid was Lys. Moreover,the heavy metal As,Hg,Pb,Cd and 188 pesticides had not been found in E. coracana. It is a very safe food.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2015年第5期187-191,共5页
Food and Fermentation Industries
关键词
龙爪稷
营养成分
氨基酸评分
重金属
农药残留
Eleusine coracana Gaertn
nutritional components
amino acid score
heavy metal contents
pesticide residues
