INTRODUCTION Obesity is linked to type 2 diabetes and risk factors associated to the metabolic syndrome. Consumption of dietary fibres has been shown to have positive metabolic health effects, such as by increasing satiety, lowering blood glucose and cholesterol levels. These effects may be associated with short-chain fatty acids (SCFAs), particularly propionic and butyric acids, formed by micr...

This investigation's purpose was the evaluation effects of physical forms corn and forage sources on growth performance, blood parameters, ruminal fermentation Holstein calves. Forty-eight calves (38.2 ± 1.2 kg BW) were used in a completely randomized design with 4 treatments 12 replications for 65 days. The were: 1) Basal diet + mashed form wheat straw (MCWS), 2) flacked (FCWS), 3) corn+ Sugar...

The heterogeneous photocatalytic decomposition of acetic acid/acetate mixtures was studied on n-type Ti02 powder. The influence of solution composition, reaction temperature, light intensity, and semiconductor properties (crystallographic structure, doping) was investigated. For photodecarboxylation in the absence of molecular oxygen, anatase powders proved to be most efficient with increased r...

Dissociation rates of dimeric formic (methanoic)-, acetic (ethanoic)and propionic acid in the gas phase were measured over the pressure range 0.01-100 mbar and for temperatures between 290 K and 325 K. Standing acoustic waves in a cylindrical cavity were excited by absorption of amplitude-modulated COz-laser radiation. Consistent sets of kinetic and thermodynamic properties of the dimerfmonomer...

Dairy propionibacteria are widely used in starter cultures for Swiss type cheese. These bacteria can ferment glucose, lactic acid, and glycerol into propionic acid, acetic acid, and carbon dioxide. This research examined the antifungal effect of dairy propionibacteria when glycerol was used as carbon source for bacterial growth. Five type strains of propionibacteria were tested against the yeas...

Acetyl coenzyme A synthetase (EC 6.2.1.1) has been examined for its ability to accept various carboxylic acids as substrates in place of acetic acid. The activity of the enzyme with these substrates was monitored using a coupled enzyme assay and high pressure liquid chromatography (HPLC) analysis. Short chain carboxylic acids were found to be active including: propionic, acrylic, fluoroacetic, ...

the chemical composition, in situ ruminal degradability coefficients of dry matter (dm), and nutrient digestibility in sheep were evaluated for corn silage (cs) treated (fresh weight basis) with different levels of a commercial bacterial inoculant (i) as follows: (1) untreated cs (control); (2) cs + i at half of the recommended level; (3) cs + i at the recommended level (3  1010 colony forming...

The electrochemical behaviour of indole and a group of indole-containing compounds with a substituent at the C3 position, indol-3-acetamide (IAM), tryptamine, gramine, indole acetic acid (IAA), indole propionic acid (IPA), indole butyric acid (IBA) and tryptophan, was investigated at a glassy carbon electrode, in order to determine their oxidation pathways. Indole undergoes one irreversible pH ...