A biotechnological process for treatment and recycling poultry feathers as a feed ingredient

被引：132

作者：

Bertsch, A

Coello, N ^{[1
]}

机构：

[1] Cent Univ Venezuela, Inst Expt Biol, Lab Proc Biotecnol, Caracas, Venezuela

[2] Cent Univ Venezuela, Fac Agron, Inst Quim & Tecnol, Maracay, Venezuela

来源：

BIORESOURCE TECHNOLOGY | 2005年 / 96卷 / 15期

关键词：

Kocuria rosea; feathers; feather meal; feedstock; carotenoid pigment;

D O I：

10.1016/j.biortech.2004.12.026

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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 ill animal feeding as protein and pigment source. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1703 / 1708

页数：6

共 29 条

[1]

AKYBA Y, 2001, ANIMAL SCI J, V72, P147

[2] Production of β-carotene by a mutant of Rhodotorula glutinis [J].