Journal of Nuclear Agricultural Sciences ›› 2017, Vol. 31 ›› Issue (12): 2377-2383.DOI: 10.11869/j.issn.100-8551.2017.12.2377

• Food Irradiation·Food Science • Previous Articles     Next Articles

Effects of Simulated Microgravity on Protein Nutritional Value of Pleurotus geesteranus

LEI Jingui1, YANG Youquan2, DENG Sufang2, CHEN Min1, 2, *   

  1. 1 Agricultural Digital Institute,Fujian Academy of Agriculture Sciences,Fuzhou, Fujian 350003;
    2 Agricultural Ecology Institute,Fujian Academy of Agriculture Sciences,Fuzhou, Fujian 350013
  • Received:2017-06-19 Online:2017-12-10 Published:2017-10-25


雷锦桂1, 杨有泉2, 邓素芳2, 陈敏1, 2, *   

  1. 1 福建省农业科学院数字农业研究所,福建 福州 350003;
    2 福建省农业科学院生态农业研究所,福建 福州 350013
  • 通讯作者: 陈敏,男,研究员,主要从事受控生态与设施农业研究。
  • 作者简介:雷锦桂,男,副研究员,主要从事食用菌育种与栽培选育工作。
  • 基金资助:

Abstract: In order to probe the influence of simulated microgravity on growth condition of Pleurotus geesteranus, mycelium of Pleurotus geesteranus was cultured in a plant-growing device with three-dimensional rotation manner, and then the effect of two growing conditition i.e., simulated microgravity and static cultivation, on evalution of the protein nutrition values in Pleurotus geesteranus fruiting bodies were analyzed. The result showed that, the contents of fourteen kinds of amino acids in the fruiting bodies of Pleurotus geesteranus in the treatment of simulated microgravity were higher than that of static cultivation, and its total amount of amino acid reached 114.0 g·kg-1,essential amino acids reached 53.5 g·kg-1,which was 26.2% and 28.3% higher than the static cultivation, respectively. Moreover, the ratio of essential amino acid content of Pleurotus geesteranus were increased by 1.62% and 32.57% to compare with static cultivation treatment and FAO/WHO reference standards, but was slightly less than that of the total amount of essential amino acids in chicken protein (49.7%). The six indicators, i.e. chemical score, amino acid score, score of ratio coefficient of amino acid, essential amino acid index, biological value and the nutrition index in simulated microgravity treatment were all higher than that of the static cultivation treatment. These facts indicated that, simulated microgravity cultivation benefited the formation of amino acids in Pleurotus geesteranus, and their composition became more reasonable. This study provided references for revealing the mechanism of microgravity on the growth and development of edible fungi and its species breeding in space.

Key words: simulational microgravity, Pleurotus geesteranus, protein, amino acids, nutrition evaluation

摘要: 为揭示模拟微重力对秀珍菇栽培的影响,利用三维旋转式植物栽培装置栽培秀珍菇,分析模拟微重力和静止2种栽培条件下秀珍菇子实体中蛋白质营养评价的效应。结果表明,模拟微重力栽培的秀珍菇子实体中有14种氨基酸含量高于静止栽培处理,氨基酸总量达114.0 g·kg-1,必需氨基酸总量为53.5 g·kg-1,与静止栽培处理相比,依次提高了26.2%、28.3%;且必需氨基酸比值含量比静止栽培处理和FAO/WHO的参照标准分别提高了1.62%和32.57%,略低于鸡蛋白的必需氨基酸比值含量(49.7%)。模拟微重力栽培的秀珍菇中蛋白质营养价值评价的化学评分、氨基酸评分、氨基酸比值系数分、必需氨基酸指数、生物价及营养指数6项指标均高于静止栽培处理,表明模拟微重力栽培秀珍菇有利于氨基酸的形成,且氨基酸的组成更合理。本研究为揭示微重力对食用菌生长发育机理和空间育种提供了理论参考。

关键词: 模拟微重力, 秀珍菇, 蛋白质, 氨基酸, 营养评价