Matters Microbial #75: Do Gut Microbes Watch their Carbs?  

January 23, 2025

Today, Dr. Darrell Cockburn, Associate Professor of Food Science at Penn State, joins the #QualityQuorum to discuss the work his research group has done exploring how starches and other polysaccharides are used by the gut microbiome. 

Host: Mark O. Martin

Guest: Darrell Cockburn

Download MM#75 (40 MB mp3, 67 min)
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  • An overview of dietary fiber in the diet.
  • A primer on the structure of starch and cellulose.
  • An overview on starch granules.
  • The concept of food gelatinazation.
  • An overview of “resistant” starch.
  • How Febreze works!
  • The concept of the glycemic index of foods.
  • An article about resistant starch and colon microbiota.  Another article on this topic.
  • A primer on carbohydrate binding modules.
  • An article describing the role of short chain fatty acids in digestion.
  • An article suggesting that there is no perfect microbiome.
  • An interesting article from Dr. Cockburns research group showing that microbes can work together to digest resistant starch.
  • Dr. Cockburn’s academic website.

Intro music is by Reber Clark

Send your questions and comments to mattersmicrobial@gmail.com

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