Screening human intestinal Bifidobacterium strains for growth, acidification, EPS production and viscosity potential in low-fat milk
Screening human intestinal Bifidobacterium strains for growth, acidification, EPS production and viscosity potential in low-fat milk
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DOI：
10.1016/j.idairyj.2011.09.008
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发表时间：
2012-03-01
影响因子：
3.1
通讯作者：
Charalampopoulos, D.
中科院分区：
文献类型：
--
作者：
Prasanna, P. H. P.;Grandison, A. S.;Charalampopoulos, D.
对人类来源的双歧杆菌菌株进行了筛选，以了解它们在牛奶中生长和产生胞外多糖(EPS)的能力。双歧杆菌菌株在低脂UHT牛奶中生长，并对它们的生长、酸化特性、EPS产生和提高发酵牛奶粘度的能力进行了评价。在牛奶中生长良好的菌株为短双歧杆菌、长双歧杆菌和长双歧杆菌亚种。朗姆。其中，双歧双歧杆菌ALM 35、短双歧杆菌NCIMB 8807(UCC 2003)、长双歧杆菌亚种产生EPS。婴儿CCUG 52486和婴儿双歧杆菌NCIMB 702205，浓度从25到140mgL-1。根据菌株的不同，分子质量和组成有很大的不同。发酵乳的表观粘度与pH的相关性分析表明，乳酸化过程中产生的EPS可能是影响乳制品粘度的主要因素。(C)2011爱思唯尔有限公司。保留所有权利。
Bifidobacterium strains of human origin were screened for their ability to grow in milk and produce exopolysaccharides (EPS). Bifidobacterium strains were grown in low-fat UHT milk and were evaluated for their growth, acidification properties, EPS production and ability to increase the viscosity of fermented milk. The strains that grew well in milk were strains of Bifidobacterium breve and Bifidobacterium longum and B. longum subsp. longum. Among the 22 strains, EPS was produced by Bifidobacterium bifidum ALM 35, B. breve NCIMB 8807 (UCC 2003), B. longum subsp. infantis CCUG 52486 and Bifidobacterium infantis NCIMB 702205 at concentrations ranging from 25 to 140 mg L-1. The molecular mass and the composition varied considerably, depending on the strain. Analysis of the correlation between the apparent viscosity of the fermented milk and pH indicated that the EPS produced during the acidification of milk possibly contributed to the viscosity of the milk products. (C) 2011 Elsevier Ltd. All rights reserved.