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Methanogenic bacteria: presence in foodstuffs

โœ Scribed by Tullio Brusa; Fabrizio Ferrari; Enrica Canzi

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
55 KB
Volume
38
Category
Article
ISSN
0233-111X

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โœฆ Synopsis

Methanogenic bacteria are anaerobic, oxygen-intolerant microorganisms, and it is only by studying the different habitats of such bacteria that fundamental information about their ecology becomes available. This research has evaluated methanogenic bacteria in apparently aerobic ecosystems, in foodstuffs not subjected to chemical-physical reclamation processes, where the presence of methanogenic bacteria has never been investigated. Methanogenic bacteria, ascribable to the Methanogenium, Methanobacterium and Methanosarcina genera, were found in vegetables, meat, fish and cheese but were generally absent in confectionery products and fruit. The microorganisms appear to be chance contaminants, usually being present in only very low numbers. It should be noted that none of the tested foods showed the presence of Methanobrevibacter smithii, M. oralis or Methanosphaera stadtmaneae, methanogenic bacteria sometimes present in the human digestive tract.

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