Being classified within the Basidiomycota, Auricularia polytricha has been proved to degrade lignocellulose, a major component of wheat bran fiber. During the fermentation of lignocellulose by A. polytricha strain, a large number of intermediate products are produced, which affect the further degradation of lignocellulose. Therefore, it is essential to analyze the fermentation intermediates for study on the degradation mechanism of wheat bran fiber. In this study, the effectiveness of fermentation of wheat bran fiber by A. polytricha strain was confirmed via scanning electron microscopy. Additionally, the results of gas chromatography–mass spectrometry indicated that the A. polytricha strain could degrade wheat bran fiber and produce several aromatic compounds, and that the number of products obtained after 7 days of fermentation was significantly lower than that after 3 days of fermentation. It has also been demonstrated that diisooctyl phthalate and 9‐octadecenamide belong to metabolites produced during the fermentation of wheat bran fiber, by culturing A. polytricha with wheat bran fiber and glucose as carbon source, respectively. Moreover, by conducting an ultraviolet wavelength scanning of the culture liquid containing vanillin fermented by A. polytricha, it has been indicated that the strain could degrade vanillin and further demonstrated that the strain has the ability to degrade wheat bran fiber. Furthermore, adding the products of wheat bran fiber fermented for 3 days by A. polytricha could improve the elasticity of the dough sheet.

中文翻译：

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多毛木耳菌株发酵的麦麸纤维制品及其对面片流变性能的影响。

多毛木耳被分类为担子菌属，可降解木质纤维素，这是麦麸纤维的主要成分。在由多毛土壤曲霉菌株发酵木质纤维素的过程中，产生大量中间产物，这影响了木质纤维素的进一步降解。因此，分析发酵中间体对研究麦麸纤维的降解机理至关重要。在这项研究中，通过扫描电子显微镜证实了由A. polytricha菌株发酵的麦麸纤维的有效性。另外，气相色谱-质谱法的结果表明，多毛A该菌株可以降解麦麸纤维并产生几种芳香化合物，发酵7天后获得的产物数量明显少于发酵3天后得到的产物数量。还已经证明，通过分别用麦麸纤维和葡萄糖作为碳源培养多毛A霉，邻苯二甲酸二异辛酯和9-十八烯酰胺属于麦麸纤维发酵过程中产生的代谢产物。此外，通过对含有经多毛土壤曲霉发酵的香草醛的培养液进行紫外线波长扫描。，已经表明该菌株可以降解香草醛，并且进一步证明该菌株具有降解麦麸纤维的能力。此外，加入经A. polytricha发酵3天的麦麸纤维产品可以改善面片的弹性。