江西农业学报2023,35(01):172~176ActaAgriculturaeJiangxiDOI:10.19386/j.cnki.jxnyxb.2023.01.027菌草栽培平菇子实体的营养成分分析林应兴(福建农林大学国家菌草工程技术研究中心,福建福州350002)摘要:以菌草栽培的平菇子实体为试验材料,采用国家标准分析方法测定菌草平菇子实体的营养成分含量。结果表明:菌草平菇具有高蛋白(22.5g/100g)、高膳食纤维(22.16g/100g)、低脂肪(2.8g/100g)、丰富的多糖(20.2g/100g)和富含多种矿物质元素的特点。菌草平菇的蛋白质中含有17种氨基酸,氨基酸总量为21.75g/100g,其中,7种人体必需氨基酸(EAA)的总含量为8.33g/100g;3种支链氨基酸,其支链氨基酸总量/芳香族氨基酸总量的比值(F值)为2.19;富含鲜甜味氨基酸,其含量占总氨基酸含量的53%;必需氨基酸/总氨基酸值为0.38,必需氨基酸/非必需氨基酸的值为0.62,与FAO/WHO提出的蛋白质模式的限量值相近。菌草平菇对铅、砷、汞、镉等重金属均有富集能力,尤其对镉的富集能力更强。关键词:菌草;平菇;营养成分;矿物质元素;氨基酸;重金属中图分类号:S646.14文献标志码:A文章编号:1001-8581(2023)01-0172-05AnalysisofNutritionalComponentsinFruitingBodyofOysterMushroomsCultivatedwithJUNCAOLINYing-xing(ChinaNationalEngineeringResearchCenterofJUNCAOTechnology,FujianAgricultureandForestryUniversity,Fuzhou350002,China)Abstract:ThefruitingbodiesofoystermushroomcultivatedwithJUNCAOwereusedastestmaterialstodeterminethecontentofnutritionalcompositionbynationalstandardanalysismethod.TheresultsshowedthatJUNCAOoystermushroomhadthecharacteristicsofhighprotein(22.5g/100g),highdietaryfiber(22.16g/100g),lowfat(2.8g/100g),richpolysaccharide(20.2g/100g)andmanymineralelements.TheproteinofJUNCAOoystermushroomcontained17kindsofaminoacids.Thetotalamountofaminoacids(TAA)was21.75g/100g.Thetotalcontentof7kindsofessentialaminoacids(EAA)was8.33g/100g.Therewere3kindsofbranched-chainaminoacids,andFvalue(branched-aromaticratio)was2.19.Therewasrichinumami-sweetaminoacids,accountingfor53%.Meanwhile,E/T(0.38)andE/N(0.62)wereclosetothevaluesoftheproteinmodelproposedbyFAO/WHO.TheJUNCAOoystermushroomcanenrichheavymetalssuchasPb,Se,HgandCd,etc.,especiallyCd.Keywords:JUNCAO;...