Thermophilic methanogenesis from pectin by a mixed defined bacterial culture

Current Microbiology - 1990
Bernard Ollivier1, Jean-Louis Garcia1
1Laboratoire de Microbiologie ORSTOM, Université de Provence, Marseille, France

Tóm tắt

Thermophilic degradation of pectin was studied in batch cultures at 55°C by different associations of anaerobic bacteria, includingClostridium thermocellum, Methanobacterium sp., andMethanosarcina sp.Clostridium thermocellum alone produced large amounts of methanol along with some isopropanol and H2. The inoculation ofMethanobacterium sp. in the culture did not affect the metabolism ofC. thermocellum; this demonstrates the absence of interspecies hydrogen transfer. In the presence of the methylotrophicMethanosarcina sp., methanol was reduced to methane without effect on pectin hydrolysis; a small amount of the H2 produced was also used to reduce methanol.

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Tài liệu tham khảo

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