Organic milk improves Bifidobacterium lactis counts and bioactive fatty acids contents in fermented milk

被引：16
作者：
Florence, Ana Carolina R. [1 ]
Oliveira, Ricardo P. S. [1 ]
Silva, Roberta C. [1 ]
Soares, Fabiana A. S. M. [1 ]
Gioielli, Luiz A. [1 ]
Oliveira, Marice N. [1 ]
机构：
[1] Univ Sao Paulo, Dept Biochem & Pharmaceut Technol, BR-05508900 Sao Paulo, Brazil
来源：
LWT-FOOD SCIENCE AND TECHNOLOGY | 2012年 / 49卷 / 01期
基金：
巴西圣保罗研究基金会;
关键词：
Probiotic; Organic milk; Bifidobacteria; Conjugated linoleic acid; alpha-linolenic acid; CONJUGATED LINOLEIC-ACID; LACTOBACILLUS-CASEI; PROBIOTIC BACTERIA; DAIRY-PRODUCTS; DOUBLE-BLIND; RETAIL MILK; IN-VITRO; CULTURE; YOGURT; VIABILITY;
D O I：
10.1016/j.lwt.2012.04.023
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
In functional dairy products, polyunsaturated fatty acids such as, conjugated linoleic acid (CLA) and alpha-linolenic acid (ALA) have been highlighted for their benefits related to prevention of some chronic diseases. In order to study the effect of type of milk (conventional vs. organic, characterized by a specific fatty acid composition), Bifidobacterium animalis subsp. lactis (BB12, B94, BL04 and HN019) counts, acidification activity and chemical composition (pH, lactose, lactic acid contents and fatty acids profile) were investigated before fermentation and after 24 h of products stored at 4 degrees C. Organic and conventional milk influenced acidification performance and bacteria counts, which was strain-dependent. Higher counts of BB12 were observed in organic milk, whereas superior counts of BL04 were found in conventional milk. Organic fermented milk showed lower levels in saturated fatty acids (FA) and higher in monounsaturated FA contents. Similarly, among bioactive FA, organic fermented milks have higher amounts of trans vaccenic acid (TVA-C18:1t), conjugated linoleic acid (CLA) and slightly higher contents of alpha-linoleic acid (ALA). (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：89 / 95
页数：7
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