Identification and Nutrient Composition of a Wild Pleurotus pulmonarius Strain from Tibet, and the Antioxidant and Cytotoxic Activities of Polysaccharides from This Fungus
文献类型： 外文期刊
作者： Jiang, Hao 1 ; Gao, Lei 2 ; Hu, Xin 1 ; Fu, Junsheng 1 ; Zhang, Junli 2 ;
作者机构： 1.Fujian Agr & Forestry Univ, Coll Life Sci, Fuzhou 350002, Peoples R China
2.Tibet Acad Agr & Anim Husb Sci, Lhasa 850000, Peoples R China
关键词：
期刊名称：FOODS （ 影响因子：5.1； 五年影响因子：5.6 ）
ISSN：
年卷期： 2025 年 14 卷 7 期
页码：
收录情况： SCI
摘要： The selection and breeding of high-quality wild edible fungal strains can bring significant economic and social benefits. A wild fungal strain (X21185) from the Tibetan Plateau was isolated and identified as a novel Pleurotus pulmonarius (P. pulmonarius) based on its morphological and molecular characteristics. The appropriate culture conditions for P. pulmonarius were determined. The nutrient contents of P. pulmonarius fruiting bodies were analyzed. Compared with the conventional nutritional contents of the representative edible fungi (Pleurotus ostreatu and Pleurotus eryngii) and egg, the protein, ash, and dietary fiber contents of P. pulmonarius were higher. Four types of essential amino acids, seven types of nonessential amino acids, the total essential and nonessential amino acids of P. pulmonarius were present in considerably higher quantities than those of representative edible fungi (Pleurotus ostreatus and Pleurotus citrinopileatus) and egg, respectively. P. pulmonarius polysaccharides (PPPs) had strong ABTS+, DPPH, and hydroxyl free radical scavenging activities (EC50: 0.051, 3.322, and 2.87 mg/mL, respectively), and the cytotoxicity was higher against HepG2 hepatocellular carcinoma cells (IC50: 1.501 mg/mL) than against MDA-MB-468 triple-negative breast cancer cells (IC50: 2.183 mg/mL). This study provides a foundation for the development of the novel wild P. pulmonarius strain.
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