1. The effects of a methane inhibitor, ICI 111075, and a propionate enhancer, monensin, were studied using in vitro continuous fermenters. 2. Both compounds increased the yield of substrate energy, carbon and hydrogen in volatile fatty acids (VFA). This was mainly due to an increase in the molar proportion of propionic acid. 3. Improved yields of VFA were accompanied by reductions in methane pr...

Human physiology textbooks tend to limit their discussion of colonic functions to those of absorbing water and electrolytes and storing waste material. However, the colon is a highly active metabolic organ, containing an exceedingly complex society of microbes (1). By means of fermentation, gastrointestinal microbes break down nutrients that cannot be hydrolyzed by mammalian host enzymes and th...

a, ar-Di(glycylamino)propionic acid hydrochloride, (NH&H2CONH)2C(CH,)COOH.HCl, is enzymatically hydrolyzed in aqueous extracts of rat kidney to yield, as a maximum, 1 mole of ammonia and 1 mole of pyruvic acid per mole of substrate (1). a-(dl-Chloropropionylamino)-a-(nI,-alanylamino)propionic acid and a:, ac-di(nL-alanylamino)propionic acid hydrochloride are also hydrolyzed by rat kidney, the f...

The main objective of the present study is to assess and improve fermentation conditions produce polyhydroxyalkanoates (PHAs), such as homopolymer poly(3-hydroxybutyrate) (PHB) copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), from renewable inexpensive industrial waste by wild type Cupriavidus necator. Untreated residual glycerol, a byproduct generated biodiesel industry, was used...

Nanofiltration can be used to recover chemicals, like VFAs, produced by the fermentation of biomass. Solution pH is a key parameter for as well recovery using nanofiltration. Current work reports an experimental investigation carried out with single and mixed solutions that contain acetic, propionic, butyric acids, at various concentrations pHs. It shown retention VFAs increases solution follow...

Dysbiosis of the gut microbiota and metabolic disorders contributes to occurrence diabetes mellitus. Polyphenols reduce risk type II mellitus (T2DM) by inhibiting α-glucosidase. Mulberry leaf Fu tea (FM) is a kind obtained fermentation Eurotium cristatum, which polyphenol-enriched has distinctive aroma, but its antidiabetic mechanism unclear. In this study, we investigated polyphenols in aqueou...

Mankai® is a cultivated strain of Wolffia globosa an aquatic plant the family Lemnaceae commonly known as Duckweeds. Recent studies suggest that consumption enriched diet may provide positive health effects by decreasing body weight and improving glucose homeostasis plasma lipid profiles. However, alone on composition metabolic output human gut microbiota has not been fully investigated. Here, ...

This research was focused on whey ultrafiltration permeate (UF) fermentation by genetically unmodified (wild) organisms. We chose five classical Propionibacterium (Prb) strains which are attributed to the dairy subclass. The optimal temperature for Prb growth is around 28-30°C, however, energy saving purposes aim of this study observe organic acid, especially propionic acid (PA) and biomass pro...

BACKGROUND Acetic and propionic acids are produced by colonic bacterial fermentation of unabsorbed carbohydrates and are absorbed into the portal circulation. From there, they travel to the liver, where acetate is a lipogenic substrate and propionate can inhibit lipogenesis. The extent to which peripheral blood short-chain fatty acid concentrations reflect differences in colonic fermentation is...

This study evaluated fermentation characteristics and fungal numbers of napiergrass silages prepared with and without added raw or heated corn meal (10%, fresh-weight basis) at ensiling. Corn was added to napiergrass so that the silage would contain concentrate similar to that of corn silage with minimum grain content. The silages treated with raw or heated corn were fed to dairy does to compar...