摘要
测定10份辣木种质资源叶片的氨基酸质量分数、可溶性糖、还原糖、总黄酮、粗脂肪、粗多糖、维生素E、钾、钙、镁、铜、锰、锌、铁等主要营养成分,进行14项品质指标的相关性分析、主成分分析和聚类分析,评价不同种质的综合品质.结果表明:10份种质叶片中的氨基酸种类齐全且质量分数丰富,总量介于16.00%~26.02%之间,均含有7种人体必需氨基酸;营养物质质量分数由高到低依次为氨基酸总量、可溶性糖、还原糖、粗多糖、粗脂肪、总黄酮、维生素E,维生素E质量分数最低,为0.06 mg/hg^0.72 mg/hg,不同辣木矿质元素质量分数由高到低依次为钙、钾、镁、锰、铁、锌、铜、钙质量分数最高,为2.66 g/hg^5.33 g/hg;主成分分析结果显示,将14个营养指标简化成5个主成分,其累计贡献率为92.93%,评价出LM009,LM006,LM008和LM010这4份种质的营养品质较高.10份辣木种质资源可聚为2类,LM001和LM008聚为一类,剩余的8份聚为一类.
The amino acid content,soluble sugars,reducing sugars,total flavonoids,crude fat,crude polysaccharide,vitamin E,potassium,calcium,magnesium,copper,manganese,zinc,iron and other major nutrient components in the leaves of 10 Moringa germplasm resources were determined.Correlation analysis,principal component analysis and cluster analysis of 14 quality indexes were carried out to give a comprehensive evaluation of the quality of different germplasms.The results showed that the leaves of the 10 germplasms contained complete and abundant amino acids,the total amount ranging from 16.00%to 26.02%,and all of them contained 7 kinds of essential amino acids.Their contents were in the order of total amino acid,soluble sugars,reducing sugars,crude polysaccharide,crude fat,total flavonoids,vitamin E,the content of the last one(vitamin E)being the lowest(0.06~0.72 mg/hg).Of the mineral elements determined,Ca generally had the highest content in different moringa grmplasms,ranging from 2.66 to 5.33 g/hg,followed in order by K,Mg,Mn,Fe,Zn and Cu.The results of principal component analysis simplified the 14 nutrition indexes into 5 principal components,their cumulative variance contribution rate being up to 92.93%.Four germplasms(LM009,LM006,LM008 and LM010)were evaluated to have fairly good nutritional quality.Cluster analysis of the 10 varieties of moringas divided them into 2 clusters;LM001 and LM008 in one cluster,and the remaining 8 in the other cluster.
作者
杨焱
杨朴丽
张祖兵
张阳梅
彭志东
胡永亮
黄家卫
YANG Yan;YANG Pu-li;ZHANG Zu-bing;ZHANG Yang-mei;PENG Zhi-dong;HU Yong-liang;HUANG Jia-wei(Yunnan Tropical Crops Research Institute,Jinghong Yunnan 666100,China;Xishuangbanna Yunken Macadamia Nut Science&Technology Development Company,Ltd.,Jinghong Yunnan 666100,China;Dehong Tropical Agriculture Research Institute of Yunnan,Ruili Yunnnan 678600,China)
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第6期20-30,共11页
Journal of Southwest University(Natural Science Edition)
基金
农业农村部物种品种资源保护(热带作物)项目(18190034)
现代农业产业技术体系建设专项(CARS-11-YNZZB).
关键词
辣木
种质资源
氨基酸
营养成分
评价
moringa(Moringa oleifera Lam.)
germplasm resource
amino acid
nutritional component
evaluation
