Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.idairyj.2009.02.004
Title: Stimulating fermentative activities of bifidobacteria in milk by highintensity ultrasound
Authors: Nguyen, T.M.P.
Lee, Y.K.
Zhou, W. 
Issue Date: Jun-2009
Citation: Nguyen, T.M.P., Lee, Y.K., Zhou, W. (2009-06). Stimulating fermentative activities of bifidobacteria in milk by highintensity ultrasound. International Dairy Journal 19 (6-7) : 410-416. ScholarBank@NUS Repository. https://doi.org/10.1016/j.idairyj.2009.02.004
Abstract: The effect of ultrasonic processing at 20 kHz on the fermentative activities of four different strains of Bifidobacterium (i.e., Bifidobacterium breve ATCC 15700, Bifidobacterium infantis, Bifidobacterium animalis ssp. lactis (BB-12), and Bifidobacterium longum (BB-46)) in milk was investigated. Results showed that ultrasound under the applied conditions could reduce the fermentation time required to reach pH 4.7 for samples with B. infantis, B. breve ATCC 15700, and BB-12, but not for BB-46. The viability of each the first three strains at the end of the fermentation was comparable with that of the corresponding control. The probiotic bacteria cells were ruptured by ultrasound and released intracellular enzyme β-galactosidase that promoted the hydrolysis of lactose and trans-galactosylation, and subsequently enhanced the growth of the remaining bacterial cells in inoculated milk during fermentation. The lower the concentration of lactose, the higher the amount of oligosaccharides (degree of polymerization = 3) found in the fermented milk with ultrasound treatment. © 2009 Elsevier Ltd. All rights reserved.
Source Title: International Dairy Journal
URI: http://scholarbank.nus.edu.sg/handle/10635/94887
ISSN: 09586946
DOI: 10.1016/j.idairyj.2009.02.004
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

29
checked on Nov 19, 2018

WEB OF SCIENCETM
Citations

28
checked on Nov 19, 2018

Page view(s)

19
checked on Apr 20, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.