数字农科院2.0

Enhancing Resource Efficiency: Utilizing Maize Stalk in Ganoderma lingzhi Substrates: Formula Optimization and Degradation Mechanism

文献类型： 外文期刊

作者： Li, Jintao;Wang, Shufang;Liu, Yingjie;Ye, Qianqi;Yan, Meixia

作者机构：

关键词： Maize stalk;Ganoderma lingzhi;Lignocellulose;Mushroom cultivation;Resource reuse

期刊名称： WASTE AND BIOMASS VALORIZATION

ISSN： 1877-2641

年卷期： 2026 年

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： To expand the raw material range for Ganoderma lingzhi production, this study explored the feasibility of maize stalk (MS) as a sawdust substitute and clarified the mechanism of MS utilization by G. lingzhi. 6 groups of culture substrates with different MS proportions were designed for G. lingzhi cultivation. The optimal formula was screened by analyzing agronomic traits, main bioactive substance contents, and targeted amino acid metabolic profiles. Lignocellulose content and enzyme activity at different growth stages of G. lingzhi were detected to investigate substrate utilization patterns. Results showed that the Y1 formula (60.8% sawdust + 15.2% MS) exhibited significantly superior agronomic traits and higher triterpene/sterol contents compared to other formulations, with the highest EAA/(EAA + NEAA) and EAA/NEAA ratios. G. lingzhi primarily consumes and utilizes cellulose; excessive MS addition reduced lignin and cellulose contents, leading to decreased cellulase activity and ultimately lower yields. Thus, an appropriate amount of MS can replace traditional sawdust substrates, and this study provides data support for the development of MS-based culture media for G. lingzhi.

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