食品工业科技2026，Vol.47Issue(2)：308-318,11.DOI:10.13386/j.issn1002-0306.2025010047
8种石斛属植物营养价值比较分析与评价
Comparative Analysis and Evaluation of Nutritional Value in Eight Dendrobium Species
摘要
Abstract
Dendrobium species had been traditionally utilized for their medicinal properties and nutritional benefits.Understanding the nutritional variations among different Dendrobium species was crucial for their optimal utilization.This study systematically evaluated eight Dendrobium species(D.strongylanthum,D.chrysanthum,D.chrysotoxum,D.lituiflorum,D.scoriarum,D.aduncum,D.hercoglossum,and D.lohohense)by analyzing their general nutritional components,mineral elements,bioactive constituents,and amino acid profiles.The results revealed that all eight Dendrobium species exhibited a low-fat nutritional characteristic(ranging from 0.98%to 1.74%)and high levels of Mg(ranging from 1.03×103 to 6.06×103 mg/kg),K(ranging from 0.39×104 to 1.66×104 mg/kg),and Ca(ranging from 0.3×104 to 2.33×104 mg/kg).D.strongylanthum and D.lituliflorum contained higher polysaccharide contents(51.11%and 38.91%,respectively).Moreover,the alcohol-soluble extract contents of all Dendrobium species were above 6.5%,with the exception of D.aduncum.All species contained a complete profile of amino acids,with total amino acid content ranging from 1.395%to 3.883%,and essential amino acids accounting for 36.00%to 41.12%of the total,indicating their potential as high-quality protein sources.Statistical analysis demonstrated a highly significant positive correlation between total amino acids and essential amino acids(r=0.92,P<0.01)as well as medicinal amino acids(r=0.89,P<0.01).A significant correlation was observed with the amino acid score(r=0.68,P<0.05).Whereas no significant association was found with bioactive constituents(P>0.05).Cluster analysis categorized the eight species into three distinct groups,revealing substantial nutritional heterogeneity even within closely related taxa.D.strongylanthum and D.lituiflorum(Group I)emerged as superior cultivars,exhibiting not only exceptional polysaccharide content but also markedly higher total amino acid levels(3.041%and 3.530%,respectively)compared to other species.These findings position them as priority candidates for selective breeding and development as premium Dendrobium resources.关键词
石斛属/营养成分/矿物质元素/氨基酸含量/营养评价Key words
Dendrobium/nutritional components/mineral elements/amino acid content/nutritional evaluation分类
轻工纺织引用本文复制引用
YANG Zhe,CHAI Shengfeng,CHEN Ni,PENG Lihui,JIANG Haidu,LONG Limei,JIANG Qiang,WEI Yujing,XIONG Zhongchen,WEI Xiao..8种石斛属植物营养价值比较分析与评价[J].食品工业科技,2026,47(2):308-318,11.基金项目
国家重点研发计划项目(2022YFF1300700) （2022YFF1300700）
广西林业局项目(2024LYKJ01) （2024LYKJ01）
广西林业科技推广示范项目(2023LYKJ03 and[2022]GT23) （2023LYKJ03 and[2022]GT23）
广西植物功能物质与资源持续利用重点实验室项目(ZRJJ2023-6). （ZRJJ2023-6）
