Multidimensional quality assessment of Lyophyllum decastes mushroom varieties: nutritional components, protein characteristics and umami profiling
文献类型： 外文期刊
作者： Li, Xiaolong 1 ; Yang, Huanling 1 ; Li, Hui 2 ; Li, Wen 1 ; Wu, Di 1 ; Zhang, Zhong 1 ; Liu, Peng 1 ; Liu, Yanfang 1 ; Chen, Wanchao 1 ; Yang, Yan 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Minist Agr, Natl Engn Res Ctr Edible Fungi, Inst Edible Fungi,Key Lab Edible Fungi Resources &, Shanghai 201403, Peoples R China
2.Dehong Teachers Coll, Sch Agron & Biosci, Xianchi Rd 14, Mangshi 678400, Yunnan, Peoples R China
关键词： Lyophyllum decastes; Nutrition; Amino acid assessment; Taste quality; Membership function
期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.6； 五年影响因子：6.9 ）
ISSN： 0023-6438
年卷期： 2025 年 226 卷
页码：
收录情况： SCI
摘要： This study comprehensively assessed the nutritional and umami traits of twelve Lyophyllum decastes varieties to identify superior strains for functional foods. Macronutrients, amino acid profiles, protein quality indices (amino acid score, AAS; score of ratio coefficient, SRC; protein digestibility-corrected amino acid score, PDCAAS), umami compounds, and equivalent umami concentration (EUC) were analyzed. A novel Content-Digestibility-Balance 3D framework, combined with cluster analysis and PCA-membership function, enabled integrated quality evaluation. Results showed significant varietal differences: crude protein (20.25-27.88 %), polysaccharides (2.86-6.94 %), and EUC (39.77-211.48 g MSG/100g). Essential amino acid ratios (34.78-41.69 %) aligned with FAO/WHO standards, with methionine + cysteine as the limiting amino acid. Protein quality indices (AAS, SRC, PDCAAS) demonstrated superior amino acid balance compared to other fungi and cereals. The L6 variety excelled, exhibiting the highest protein (27.88 %), EUC (211.48 g MSG/100g), and optimal protein indices. Multivariate analysis identified crude protein, sweet amino acids, and EUC as key discriminators (PC1: 41.97 %), ranking L6, L7, and L5 highest. Negative fat-polysaccharide correlations (r =-0.709) revealed metabolic trade-offs, while clustering classified samples into three quality tiers. This study provides a systematic, data-driven strategy for breeders and producers to optimize L. decastes cultivation, enhancing both nutritional value and consumer appeal in mushroom-based products.
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