%0 Journal Article %A LEI Jingui %A YANG Youquan %A DENG Sufang %A CHEN Min %T Effects of Simulated Microgravity on Protein Nutritional Value of Pleurotus geesteranus %D 2017 %R 10.11869/j.issn.100-8551.2017.12.2377 %J Journal of Nuclear Agricultural Sciences %P 2377-2383 %V 31 %N 12 %X 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. %U https://www.hnxb.org.cn/EN/10.11869/j.issn.100-8551.2017.12.2377