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  • Title: Properties of hydrolyzed guar gum fermented in vitro with pig fecal inocula and its favorable impacts on microbiota.
    Author: Fu X, Wei X, Xiao M, Han Z, Secundo F, Mou H.
    Journal: Carbohydr Polym; 2020 Jun 01; 237():116116. PubMed ID: 32241396.
    Abstract:
    In order to identify an appropriate substitute for antibiotic use in livestock production, this study investigates the fermentation of guar gum and its low molecular weight hydrolyzed derivatives (GMLP-1, 1-10 kDa; GMLP-2, < 1 kDa) in pig fecal cultures and the associated effects on the intestinal microbiota. Both the non-hydrolyzed guar gum and GMLP were quickly utilized by fecal microbiota. GMLP-2 showed the most rapid SCFA-producing activity and produced higher concentrations of lactate, acetate, and propionate. However, GMLP-1 showed the highest yield of total SCFAs and butyrate. Both the guar gum and GMLP groups improved the abundance of Clostridium sensu stricto 1 and Bifidobacterium, but the most significant enhancement was observed with GMLP-1. This study showed that by associating with its chemical structure, GMLP-1 can be utilized to direct a targeted promotion of the intestinal microbiota and may offer the most favorable effects in livestock production.
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