摘要
为研究广西牛大力(Nanhaia speciosa)不同种源的营养及药用成分含量,选用广西区内牛大力7个种源的0.5 a生苗在马尾松初级种子园林下种植,种植3.5 a后,采集其薯状根进行淀粉、总糖、氨基酸和芒柄花素含量检测。结果表明,7个种源牛大力的淀粉含量为18.80%~38.20%,总糖含量为2.56%~6.94%,氨基酸含量为13.50%~18.10%,芒柄花素含量为0.08~0.83 ug·g~(-1);鲜味氨基酸含量为3.79%~5.89%,甜味氨基酸含量为3.51%~5.03%,苦味氨基酸含量为5.26%~7.13%,药用氨基酸含量为8.06%~11.31%。必需氨基酸含量与总氨基酸含量的比值为33.22%~37.23%,必需氨基酸与非必需氨基酸含量的比值为52.47%~62.83%;7个种源牛大力的第一限制氨基酸均为蛋氨酸+胱氨酸(Met+Cys),SRC值为53.34~68.11。上林县和玉林市种源的芒柄花素、氨基酸、淀粉和总糖含量均比其他种源高;从氨基酸的组成上看,上林县和玉林市牛大力种源鲜味最佳,同时药用氨基酸含量较高。因此上林县和玉林市种源初步被认定为营养及药用成分较佳种源。
In order to analysis the nutritional and medicinal content of different Guangxi Zhuang Autonomous Region of Nanhaia speciosa,providing a reference basis for the selection of varieties for the development of N.speciosa cultivation in Guangxi.It was planted 0.5 year-old seedlings of N.speciosa with 7 provenances from Guangxi under the primary seed garden of Pinus massoniana.After planting for 3.5 years,their sweet potato roots were collected for starch,total sugar,amino acids,and formononetin content testing.The results showed that,the starch content of theof N.speciosa with 7 provenances was from 18.80%to 38.20%,the total sugar content was from 2.56%to 6.94%,the amino acid content was from 13.50%to 18.10%,and the mangiferin content was from 0.08 to 0.83 ug∙g-1;The content of umami amino acids ranged from 3.79%to 5.89%,sweet amino acids was from 3.51%to 5.03%,bitter amino acids was from 5.26%to 7.13%,and medicinal amino acids was from 8.06%to 11.31%.The ratio of essential amino acids to total amino acid content ranged from 33.22%to 37.23%,while the ratio of essential amino acids to non essential amino acids ranged from 52.47%to 62.83%.the first limiting amino acid of the 7 provenances of N.speciosa were Met+Cys,with SRC ranging from 53.34 to 68.11.The content of formononetin amino acids,starch,and total sugar of N.speciosa from Shanglin County and Yulin City,was better than other seed sources.From the composition of amino acids,the source of N.speciosa from Shanglin County and Yulin City had the best fresh taste,and the medicinal amino acid content was relatively high.Therefore,the sources of N.speciosa Shanglin County and Yulin City had been preliminarily identified as having better nutritional and medicinal components.
作者
蒙兰杨
唐国强
唐武
邓莉明
罗筱娥
MENG Lanyang;TANG Guoqiang;TANG Wu;DENG Liming;LUO Xiao׳e(Nanning Forestry Science Research Institute,Nanning Guangxi 530107,China)
出处
《南方林业科学》
2024年第6期18-24,共7页
South China Forestry Science
基金
2024年中央财政林木良种繁育补助南宁市林科所国家马尾松良种基地项目(桂林办场字[2024]5号)。
关键词
牛大力
淀粉
总糖
氨基酸
芒柄花素
黄酮类
Nanhaia speciosa
starch
total sugar
amino acids
formononetin
flavonoid
作者简介
蒙兰杨,男,工程师,硕士,主要从事林木遗传育种与栽培研究。E-mail:1525270510@qq.com;通信作者:唐国强,男,高级工程师,硕士,主要从事林木遗传育种与栽培研究研究。E-mail:421720887@qq.com。
