不同氮源对虎奶菇菌核蛋白质营养价值的影响  

Nutrient Value of Protein from Pleurotus tuber-regium Sclerotia Grown with Different Nitrogen Sources

作　　者：雷锦桂[1] 翁伯琦[2] 江枝和[1] 唐翔虬[1] 王义祥[2] 

机构地区：[1]福建省农业科学院食用菌开发应用研究中心,福州350013 [2]福建省农业科学院农业生态工程研究所,福州350013

出　　处：《食用菌学报》2006年第3期49-54,共6页Acta Edulis Fungi

基　　金：福建省科技厅重点项目"食(药)用菌高产优质栽培技术研究"(编号:2001Z128)的部分研究内容

摘　　要：分析了不同氮源培养料对虎奶菇菌核蛋白质营养价值的影响。试验结果表明,在4种参试氮源中,以尿素为氮源栽培的虎奶菇,其菌核蛋白质的化学评分、氨基酸评分、必需氨基酸指数、生物价、营养指数、氨基酸比值系数分均最高,分别为22.8、27.3、73.3、68.2、11.1和18.8。Protein from P. tuber-regium sclerotia cultivated using four different nitrogen sources [urea, cattle dung, （NH4）2SO4 and wheat bran] was assessed in terms of six nutritive quality indices——Amino Acid Score （AAS）, Chemical Score （CS）, Essential Amino Acid Index （EAAI）, Biological Value （BV）, Nutritional Index （NI） and Amino Acid Ratio Coefficient Score （AARCS）. Protein from sclerotia cultivated with urea as the nitrogen source had a superior overall nutrient value and was ranked highest in terms of all six indices. Protein from sclerotia grown with wheat bran was ranked second in the case of three protein quality indices （AAS, CS and NI） and third for the remaining three indices （EAAI, BV and AARCS）. Protein from sclerotia grown with （NH4）2 SO4 was ranked second in terms of three indices （EAAI,BV and AARCS） and third for the remaining three indices. Protein from sclerotia grown with cattle dung had the lowest nutrient value and was ranked lowest in terms of all six quality indices.

关 键 词：氮源 虎奶菇 菌核 蛋白质 营养价值 

分 类 号：S646[农业科学—蔬菜学]