Identification of the carotenoid pigment canthaxanthin from photosynthetic Bradyrhizobium strains

Article Abstract:

The carotenoid pigment canthaxanin was isolated with cold acetone-methanol from photosynthetic strains of Bradyrhizobium after centrifugation. The carotenoids in the acetone extract were isolated with hexane and NaCl followed by high-performance liquid chromatography. The orange ORS278 and dark-pink strains of Bradyrhizobium produced the highest concentration of canthaxanin, respecetively. However, the levels of canthaxanin produced by the ORS278 strain is not sufficient for the mass production of natural canthaxanin.

Carotenoids, Bacteria, Photosynthetic, Photosynthetic bacteria

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Identification of equine cecal bacteria producing amines in an in vitro model of carbohydrate overload

Article Abstract:

Research demonstrates that horse cecal samples incubated with starch or fructan carbohydrates show a significant increase in the streptococci and lactobacilli with some producing amine compounds by decarboxylating amino acids. The implication of this process in the pathogenesis of laminitis in horses due to the absorption of amines from the cecum into the circulation is discussed.

Physiological aspects, Diseases, Horses, Carbohydrate metabolism, Amines, Horse diseases, Rumen fermentation

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Effect of milk proteins on adhesion of bacteria to stainless steel surfaces

Article Abstract:

Research was conducted to evaluate utility of preadsorbed milk proteins in reducing adhesion of bacteria to stainless steel surfaces of food processing equipment. The data indicate skim milk and its protein constituents are effective in reducing bacterial adhesion.

Research, Observations, Bacteria, Bacterial adhesion, Food processing machinery, Food contamination, Protein nitrogen, Skim milk, Sanitary chemistry

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