食品科学

• 营养卫生 • 上一篇    下一篇

栽培基质对杏鲍菇子实体蛋白质营养价值的影响

李晓贝1,2,周 峰1,杨 焱1,*,冯 杰1,刘艳芳1,冯 涛2   

  1. 1.国家食用菌工程技术研究中心,农业部南方食用菌资源利用重点实验室,上海市农业科学院食用菌研究所,上海 201403;2.上海应用技术学院香料香精技术与工程学院,上海 201418
  • 出版日期:2015-12-15 发布日期:2015-12-24

Effect of Culture Media on Nutritional Value of Proteins in Pleurotus eryngii Fruit Bodies

LI Xiaobei1,2, ZHOU Feng1, YANG Yan1,*, FENG Jie 1, LIU Yanfang1, FENG Tao2   

  1. 1. Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, Shanghai 201403, China;
    2. School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
  • Online:2015-12-15 Published:2015-12-24

摘要:

分析不同配方瓶栽杏鲍菇培养基栽培所产子实体的基本成分和氨基酸组成,采用国际通用的评价方法对其蛋白质营养价值进行评价比较。结果表明:各配方栽培获得的杏鲍菇子实体中必需氨基酸占总氨基酸比例为46.4%~49.5%;单一木屑碳源的基质配方(配方7)栽培的子实体中蛋白质含量及营养指数最高,分别为20.62%和18.5;玉米芯与木屑复合碳源(碳源物质的质量分数为55%)配方(配方4、5)栽培子实体的蛋白质获得最高的氨基酸评分、化学评分及氨基酸比值系数分,分别为95.0,62.5及41.94;氮源物质的质量分数为22%且未添加豆粕及玉米粉配方(配方1)栽培的子实体中蛋白质有较高的必需氨基酸指数和生物价,分别为92.5和89.1;玉米粉或豆粕作为氮源物质能一定程度改善产品蛋白质营养价值。本研究为生产优质、高产的瓶栽杏鲍菇提供了理论依据。

关键词: 杏鲍菇, 培养基, 蛋白质, 营养指数, 氨基酸比值系数分

Abstract:

Proximate nutritional components and amino acids in fruit bodies of Pleurotus eryngii cultivated in
different culture media were studied. The nutritional value of proteins was evaluated and compared by the wellrecognized
method worldwide. Results showed that the percentage of essential to total amino acids ranged from 46.4% to
49.5%. Fruit bodies of P. eryngii cultivated in medium 7, with sawdust as the sole carbon source (55%), had the highest
crude protein content (20.62%) and nutritional index (18.5), while fruit bodies from culture medium with both corncob and
sawdust as carbon source (55%) had the highest amino acid score (95.0), chemical score (62.5) and score of ratio coefficient
of amino acid (41.94). Furthermore, essential amino acid index and biological value were higher in fruit bodies from culture
medium 1, with relatively lower content of nitrogen source (22%). The addition of cornmeal or soybean meal could improve
the nutritional value of proteins. Overall, these results can provide theoretical basis for achieving high quality and quantity of
P. eryngii in bottle cultivation.

Key words: Pleurotus eryngii, culture medium, protein, nutritional index, ratio coefficient of amino acid

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