期刊
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
卷 56, 期 5, 页码 2132-2145出版社
WILEY
DOI: 10.1111/ijfs.14823
关键词
Bifidobacteria; free‐ lactose milk; gastrointestinal simulation; inulin; microencapsulation; oligofructose
资金
- Coordination of Improvement of Higher Education Personnel (CAPES, Brazil) [CAPES-PRINT] [88887.310560/2018-00]
- National Council for Scientific and Technological Development (CNPq, Brazil) [405965/2016-8]
- Coordination of Improvement of Higher Education Personnel (CAPES, Brazil) [CNPq] [001]
The study found that spray-dried powder 2 had the highest encapsulation yield and bifidobacteria viability, while powder 3 showed the best probiotic survival rate under in vitro-simulated gastrointestinal conditions. Powders containing prebiotics showed great potential for microencapsulation of Bifidobacterium BB-12 and maintenance of cell viability in lactose-free dairy products.
Bifidobacterium BB-12 was microencapsulated by spray drying using lactose-free milk, lactose-free milk and inulin, and lactose-free milk and oligofructose, resulting in powders 1, 2 and 3, respectively. The highest encapsulation yield (88.01%) and the highest bifidobacteria viability during 120 days of storage were noted for spray-dried powder 2. Spray-dried powders 1 and 3 show a higher tendency to yellow colour. After being submitted to in vitro-simulated gastrointestinal conditions, the best probiotic survival rate result was found for spray-dried powder 3 (87.59%). Therefore, spray-dried powders containing prebiotics were the most appropriate combinations for microencapsulation of Bifidobacterium BB-12 and maintenance of cell viability during storage and gastrointestinal system, showing great potential to be used in lactose-free dairy products.
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