毛梾叶片营养成分与利用前景分析  

Nutrients analysis of Swida walteri leaves and its utilization prospects

作　　者：金雅琴 李海玲 史莹 张谦 李冬林[2] JIN Yaqin;LI Hailing;SHI Ying;ZHANG Qian;LI Donglin(College of Horticulture,Jinling Institute of Technology,Nanjing 210038;Forestry Academy of Jiangsu,Nanjing 211153)

机构地区：[1]金陵科技学院园艺园林学院,南京210038 [2]江苏省林业科学研究院,南京211153

出　　处：《安徽农业大学学报》2024年第6期914-919,共6页Journal of Anhui Agricultural University

基　　金：国家林业局948项目(2011-4-30);江苏省林业科技创新与推广项目(LYKJ[2019]09)共同资助。

摘　　要：为了了解毛梾叶中主要营养物质成分,评价其利用价值,为毛梾叶资源的多用途利用提供理论依据,采用国家标准检测方法,测定毛梾叶片中主要营养物质组成及含量,分析氨基酸成分及矿物质元素含量,氨基酸分(AAS)、化学分(CS)和必需氨基酸指数(EAAI),并与常见饲料植物进行比较分析。结果显示:毛梾叶中粗蛋白、粗脂肪、灰分和干物质质量分数分别为4.73、2.04、4.10和28.10 g·100 g^(-1);17种常见的氨基酸种类均被检出,总氨基酸质量分数(T)为36.49 g·100 g^(-1),人体必需氨基酸总量(E)为14.25 g·100 g^(-1),E/T为39.05。按照FAO/WHO模式、全鸡蛋模式和美国模式计算的EAAI分别为86.58、75.96和90.40。毛梾叶中K、Ca、Mg、P和Na含量丰富,其中以Ca质量分数最高,为36049.25 mg·kg^(-1),Mg、K、P和Na质量分数分别为7004.52、15458.02、2003.48和1754.39 mg·kg^(-1),Cu和Zn的含量低,分别为5.47和13.64 mg·kg^(-1)。毛梾叶营养成分丰富,氨基酸组成较为合理,接近良好蛋白源的质量标准,具备动物饲料开发的潜力。The aim of this study is to know the main nutrients in Swida walteri leaves,evaluate its nutritional value,and provide a theoretical basis for integrated application of the leaves.With national standard monitor method,the nutritional contents in S.walteri leaves were determined,and the amino acid and mineral element contents,amino acid score(AAS),chemical score(CS)and essential amino acid index(EAAI)were analyzed and compared with those of some common forage plants.The results showed:the crude protein,crude fat,ash and dry matter fractions were 4.73,2.04,4.10 and 28.10 g·100 g^(-1),respectively;all 17 common amino acid species were detected,and total amino acid mass fraction(T),total amount of essential amino acids(E),and E/T was 36.49 g·100 g^(-1),14.25 g·100 g^(-1) and 39.05,respectively.The essential amino acid index(EAAI)was 86.58,75.96 and 90.40,respectively,according to the FAO/WHO,whole egg and US model.There were abundant K,Ca,Mg,P and Na in the leaves,and the content of Ca was the highest with the value of 36049.25 mg·kg^(-1),and the contents of Mg,K,P and Na were 7004.52,15458.02,2003.48 and 1754.39 mg·kg^(-1),respectively,while the contents of Cu and Zn were low,5.47 and 13.64 mg·kg^(-1),re-spectively.In conclusion,S.walteri leaves are abundant in the nutrients,and the amino acid composition is reasonable,nearing the quality standard of good protein sources,showing certain exploring potential for animal feed.

关 键 词：毛梾 营养成分 氨基酸 矿物质元素 

分 类 号：Q949.92[生物学—植物学]