Methanol production from the degradation of pectin by human colonic bacteria.

  title={Methanol production from the degradation of pectin by human colonic bacteria.},
  author={R J Siragusa and James J. Cerda and Mirza Mansoor Baig and Carl Burgin and F L Robbins},
  journal={The American journal of clinical nutrition},
  volume={47 5},
When ingested, pectin can lower serum cholesterol levels in humans. Pectin is degraded by fecal bacteria in the colon. We examined the release of methanol (MeOH) by this degradation. A 0.2% glucose (2 g/L) mixture was used as the control medium. A pure culture of pectinolytic Erwinia carotovora was the control bacterium. The chief substrates were, in set 1, 0.2% pectin (2 g/L) and, in set 2, 0.1% glucose (1 g/L) and 0.1% pectin (1 g/L). Cultures of fecal bacteria and E carotovora grew for 72 h… CONTINUE READING


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