alexa A biotechnological process for treatment and recycling poultry feathers as a feed ingredient.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Bertsch A, Coello N

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Abstract A strain of Kocuria rosea with keratinolytic capacity was cultured aerobically on submerged feathers to obtain a fermented feather meal (FFM). This FFM enriched with cells of K. rosea mainly contains crude protein (71\%). The pepsin digestibility of the fermented product (88\%) was similar to the value of the commercial feather meal and more than 70\% greater that untreated feathers. The bacterial biomass improved the content of amino acids lysine (3.46\%), histidine (0.94\%) and methionine (0.69\%). Additionally, the amino acid availability tested by in vivo assay was greater than commercial feather meal. The microbial cells also supplied carotenoid pigments to FFM (68 ppm). These results suggest that feather meal enriched with K. rosea may be useful in animal feeding as protein and pigment source. This article was published in Bioresour Technol and referenced in Journal of Bioremediation & Biodegradation

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