Volatile Metabolites from Actinomycetes

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• 作者：Charlotte E. G. Schö ; ller ; Hanne Gü ; rtler ; Rita Pedersen ; Sg src="http ; //pubs.acs.org/images/gifchars/oslash.gif" border="0">ren Molin ; and Ken Wilkins
• 刊名：Journal of Agricultural and Food Chemistry
• 出版年：2002
• 出版时间：April 24, 2002
• 年：2002
• 卷：50
• 期：9
• 页码：2615 - 2621
• 全文大小：70K
• 年卷期：v.50,no.9(April 24, 2002)
• ISSN：1520-5118

文摘

Twenty-six Streptomyces spp. were screened for their volatile production capacity on yeast starchagar. The volatile organic compounds (VOCs) were concentrated on a porous polymer throughoutan 8-day growth period. VOCs were analyzed by gas chromatography with flame ionization detectionand identified or characterized by gas chromatography-mass spectrometry. A total of 120 VOCswere characterized by retention index and mass spectra. Fifty-three compounds were characterizedas terpenoid compounds, among which 18 could be identified. Among the VOCs were alkanes,alkenes, alcohols, esters, ketones, sulfur compounds, and isoprenoid compounds. Among the mostfrequently produced compounds were isoprene, acetone, 1-butanol, 2-methyl-1-propanol, 3-methyl-3-buten-1-ol, 3-methyl-1-butanol, 2-methyl-1-butanol, cyclopentanone, dimethyl disulfide, dimethyltrisulfide, 2-phenylethanol, and geosmin. The relationship between the excretion of geosmin and theproduction of spores was examined for one isolate. A good correlation between headspace geosminand the number of spores was observed, suggesting that VOCs could be used to indicate the activityof these microorganisms in heterogeneous substrates.Keywords: Streptomyces; streptomycetes; actinomycetes; GC-MS; VOC; geosmin; 2-methylisoborneol