Antifungal compounds from Bacillus subtilis B-FS06 inhibiting the growth of Aspergillus flavus
文献类型: 外文期刊
第一作者: Zhang, Ting
作者: Zhang, Ting;Shi, Zhi-Qi;Wang, Fei;Zhang, Ting;Hu, Liang-Bin;Cheng, Luo-Gen
作者机构:
关键词: Aspergillus flavus;Bacillus subtilis
期刊名称:WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY ( 影响因子:3.312; 五年影响因子:3.58 )
ISSN:
年卷期:
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收录情况: SCI
摘要: The cell-free culture filtrate (CCF) was prepared from a culture of an Aspergillus flavus antagonist, Bacillus subtilis B-FS06. The CCF inhibited the growth and spore germination of A. flavus at a series of concentrations (10, 25, 50%) (v/v). It still retained the activity after treatment at pH values ranging from 2 to 12 for 24 h or at 100 pC for 30 min. The antifungal activity, however, was reduced by 30% after treatment at 121 pC for 20 min. After purification by anion exchange chromatography, gel filtration chromatography and HPLC, the active compounds revealed six ion peaks: [M-H] m/z = 1006.78, 1020.71, 1034.74, 1049.54, 1056.78, and 1071.64 by using electrospray ionization mass spectrometry (ESI-MS) analysis. In the presence of the active compounds at 200 og/g, the growth of A. flavus on peanuts was completely inhibited.
分类号: Q93
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