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Hepatoprotective Activity of Ethanol Extract of Rice Solid-State Fermentation of Ganoderma tsugae against CCl4-Induced Acute Liver Injury in Mice

文献类型： 外文期刊

作者： Zhang, Xin 1 ; Lv, Wentao 1 ; Fu, Yongping 1 ; Li, Yu 1 ; Wang, Jinhe 2 ; Chen, Dongjie 3 ; Han, Xuerong 1 ; Li, Zhenhao 3 ;

作者机构： 1.Jilin Agr Univ, Engn Res Ctr, Chinese Minist Educ Edible & Med Fungi, Changchun 130118, Peoples R China

2.Heilongjiang Acad Agr Sci, Mudanjiang Branch, Mudanjiang 157000, Peoples R China

3.ShouXianGu Bot Drug Inst, Hangzhou 311100, Peoples R China

关键词： Ganoderma tsugae; rice solid-state fermentation; response surface optimization; triterpenoids; hepatoprotection

期刊名称：MOLECULES （ 影响因子：4.927； 五年影响因子：5.11 ）

ISSN：

年卷期： 2022 年 27 卷 16 期

页码：

收录情况： SCI

摘要： Ganoderma tsugae is well known as a medicinal mushroom in China and many Asian countries, while its fermentation technique and corresponding pharmacological activity are rarely reported. In this study, a wild G. tsugae strain (G42) with high triterpenoid content was screened from nine strains by rice solid-state fermentation, and 53.86 mg/g triterpenoids could be produced under optimized conditions; that is, inoculation amount 20%, fermentation temperature 27 degrees C, and culture time 45 days. The hepatoprotective activity of G42 ethanol extract was evaluated by CCl4-induced liver injury in mice, in which changes in the levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), oxidation-related factors, and inflammatory cytokines in serum or liver samples demonstrated the therapeutic effect. In addition, the ethanol extract of G42 reduced the incidence of necrosis and inflammatory infiltration, and decreased protein expression levels of phosphor-nuclear factor-kappa B (NF-kappa B), interleukin-I beta (IL-1 beta), and nuclear factor erythroid-2-related factor 2 (NRF2). The chemical composition of the ethanol extract was analyzed by high-resolution mass spectrometry and molecular networking. Three main triterpenoids, namely platycodigenin, cucurbitacin IIb, and ganolecidic acid B were identified. This work provided an optimized fermentation method for G. tsugae, and demonstrated that its fermentation extract might be developed as a functional food with a hepatoprotective effect.

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