文献类型：期刊文献

英文题名：Effects of Rosa roxburghii Tratt Must on the Growth, Nutrient Composition, and Antioxidant Activity of Pleurotus ostreatus Mycelia

作者：Li, Yinfeng Chen, Fei Liu, Xiaozhu

第一作者：李宇芳

通信作者：Liu, XZ[1]

机构：[1]Guizhou Inst Technol, Guiyang 550003, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2022

卷号：27

期号：11

外文期刊名：MOLECULES

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000809067000001)】；

基金：This work was supported by the Guizhou Provincial Science and Technology Foundation [2020] 1Y057.

语种：英文

外文关键词：Pleurotus ostreatus; Rosa roxburghii Tratt; growth; nutrient composition; antioxidant activity

摘要：Rosa roxburghii Tratt, a Rosaceae plant endemic to China, produces fruit with high nutritional and medicinal value. The effects of R. roxburghii must on the growth, nutrient composition, and antioxidant activity of Pleurotus ostreatus mycelia was investigated. We measured the mycelial growth rate, proximate composition, amino acid and crude polysaccharide content, and the antioxidant activity of the crude polysaccharides of P. ostreatus mycelia cultivated under different concentrations of R. roxburghii must (2%, 4%, and 8%, v/v). Low concentrations of R. roxburghii must (2% and 4%) promoted mycelial growth, while a high concentration (8%) inhibited mycelial growth. Low concentrations of R. roxburghii must had no significant effects on the soluble substances, fat, ash, and crude fiber in P. ostreatus mycelia, but significantly increased the crude protein and total amino acid contents (p < 0.05). The addition of R. roxburghii must at low concentrations significantly increased the crude polysaccharide content in mycelia (p < 0.05) but had no impact on the scavenging of hydroxyl radicals and 2,2-diphenyl-1-picrylhydrazyl (DPPH). Therefore, R. roxburghii must at low concentration can be used as a substrate for P. ostreatus cultivation to increase the protein and polysaccharide contents in mycelia.