Food Research International, ( ISI ), Volume (42), No (8), Year (2009-12) , Pages (1040-1045)

Title : ( The influence of multi stage alginate coating on survivability of potential )

Authors: , Sayed Ali Mortazavi , Mohammad B Habibi Najafi , Fakhri Shahidi ,

Citation: BibTeX | EndNote

The probiotics, Lactobacillus acidophilus PTCC1643 and Lactobacillus rhamnosus PTCC1637, were encapsulated into uncoated calcium alginate beads and the same beads were coated with one or two layers of sodium alginate with the objective of enhancing survival during exposure to the adverse conditions of the gastro-intestinal tract. The survivability of the strains, was expressed as the destructive value (decimal reduction time). Particle size distribution was measured using laser diffraction technique. The thickness of the alginate beads increased with the addition of coating layers. No differences were detectable in the bead appearance by scanning electron microscopy (SEM). The alginate coat prevented acid-induced reduction of the strains in simulated gastric juice (pH 1.5, 2 h), resulting in significantly (P < 0.05) higher numbers of survivors. After incubation in simulated gastric (60 min) and intestinal juices (pH 7.25, 2 h), number of surviving cells were 6.5 log cfu mL1 for L. acidophilus and 7.6 log cfu mL1 for L. rhamnosus by double layer coated alginate microspheres, respectively, while 2.3 and 2.0 log cfu mL1 were obtained for free cells, respectively

Keywords

Microencapsulation Alginate coating Lactobacillus acidophilus Lactobacillus
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@article{paperid:1011154,
author = {, and Mortazavi, Sayed Ali and Habibi Najafi, Mohammad B and Shahidi, Fakhri},
title = {The influence of multi stage alginate coating on survivability of potential},
journal = {Food Research International},
year = {2009},
volume = {42},
number = {8},
month = {December},
issn = {0963-9969},
pages = {1040--1045},
numpages = {5},
keywords = {Microencapsulation Alginate coating Lactobacillus acidophilus Lactobacillus rhamnosus},
}

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%0 Journal Article
%T The influence of multi stage alginate coating on survivability of potential
%A ,
%A Mortazavi, Sayed Ali
%A Habibi Najafi, Mohammad B
%A Shahidi, Fakhri
%J Food Research International
%@ 0963-9969
%D 2009

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