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Employment of ARTP to Generate Phellinus baumii (Agaricomycetes) Strain with High Flavonoids Production and Validation by Liquid Fermentation

文献类型： 外文期刊

作者： Zhang, Henan 1 ; Jiang, Fuchun 1 ; Qu, Dehui 1 ; Wang, Wenhan 1 ; Dong, Yating 2 ; Zhang, Jingsong 1 ; Wu, Di 1 ; Yang, Y 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Natl Engn Res Ctr Edible Fungi, Key Lab Edible Fungi Resources & Utilizat South, Inst Edible Fungi,Minist Agr, 1000 Jinqi Rd, Shanghai 201403, Peoples R China

2.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Jiangsu, Peoples R China

关键词： Phellinus baumii; ARTP; flavonoids; mutation; unstructured kinetic model; medicinal mushrooms

期刊名称：INTERNATIONAL JOURNAL OF MEDICINAL MUSHROOMS （ 影响因子：1.921； 五年影响因子：1.879 ）

ISSN： 1521-9437

年卷期： 2019 年 21 卷 12 期

页码：

收录情况： SCI

摘要： To obtain Phellinus baumii strain with high flavonoids yield, ARTP was employed to generate mutants of a Ph. baumii strain, which were screened for higher flavonoids content. After five rounds of screening, four mutants were identified to produce more flavonoids than the wild type strain under optimal conditions, of which A67 was the mutant with the highest flavonoids productive capacity. When cultured in shake flasks, the maximum intracellular total flavonoids production of A67 reached 0.56 g/L, 86.67% higher than the total flavonoids in CK. Antagonistic testing, RAPD, and HPLC analysis suggested that ARTP caused changes of the genetic material and metabolites in Ph. baumii. In addition, the superiority of A67 to CK was proved by liquid fermentation using unstructured kinetic models, which was performed in a 50-L fermentor. The maximum intracellular total flavonoids production and dry mycelium weight of A67 reached 0.64 g/L and 15.24 g/L, which was an increase of 88.24% and 18.23% compared with CK, respectively. This work could provide an efficient and practical strategy to obtain high flavonoids production strains and the superiority of A67 could also provide a reference to further increase flavonoids production of Ph. baumii in large-scale production mode by submerged fermentation process.

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