期刊
MOLECULES
卷 25, 期 24, 页码 -出版社
MDPI
DOI: 10.3390/molecules25245997
关键词
polyenes; pigment; fungicide; antimicrobial; yeast; antibiotic; bioactives
资金
- New Zealand Ministry of Business, Innovation and Employment (MBIE) [UOAX1410]
We have isolated a filamentous fungus that actively secretes a pigmented exudate when growing on agar plates. The fungus was identified as being a strain of Epicoccum nigrum. The fungal exudate presented strong antifungal activity against both yeasts and filamentous fungi, and inhibited the germination of fungal spores. The chemical characterization of the exudate showed that the pigmented molecule presenting antifungal activity is the disalt of epipyrone A-a water-soluble polyene metabolite with a molecular mass of 612.29 and maximal UV-Vis absorbance at 428 nm. This antifungal compound showed excellent stability to different temperatures and neutral to alkaline pH.
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