Association of carob galactomannans with probiotic bacteria in synbiotic fermented milk and colon targeted-release carrier - Archive ouverte HAL Access content directly
Journal Articles International Food Research Journal Year : 2022

Association of carob galactomannans with probiotic bacteria in synbiotic fermented milk and colon targeted-release carrier

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1
Hasnia Ziar
  • Function : Author
Imène Yahla
  • Function : Author
Meryem Sadoud
  • Function : Author
Kawtar Keddar
  • Function : Author
Abdelkader Dilmi-Bouras
  • Function : Author
Ali Riazi
  • Function : Author

Abstract

For the first time, this study presented the use of raw locust bean gum (LBG) as a prebiotic, with one probiotic strain in synbiotic fermented milk or combined with Na-alginate as a biopolymer, for a targeted release of bacteria under colon-like conditions. For this purpose, the fermentative characteristics (biomass, pH), bacterial survival, and developed viscosities of the stored fermented milks were determined. The survival rates of microencapsulated bacteria using the emulsion technique under simulated gastrointestinal conditions (stomach: pH 2 + 0.3% pepsin; colon: pH 6.5 + 1% pancreatin + 0.3% bile) were also evaluated. Results showed that all the tested bacteria maintained better biomass and acidifying activities in the presence of LBG, especially at 2%. During cold storage, the viscosities of the LBG-fermented milks were regulated and better appreciated, especially at 2%. Lactobacillus rhamnosus LbRE-LSAS and Bifidobacterium animalis subsp. lactis Bb12 microencapsulated separately in Ca-alginate-raw carob gum maintained good survival rates (51 - 66%) as compared to free cells (21 - 59%) under simulated digestive conditions, and were released under colon-like conditions. Therefore, the formulation of LBG-enriched fermented milks containing probiotic bacteria could represent a very good candidate for industrial application. Ca-alginate-raw LBG beads for the specific release of probiotics in the colon could benefit consumers with celiac disease or other digestive disorders because LBG is naturally gluten-free.

Dates and versions

hal-03759924 , version 1 (24-08-2022)

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Hasnia Ziar, Imène Yahla, Meryem Sadoud, Kawtar Keddar, Abdelkader Dilmi-Bouras, et al.. Association of carob galactomannans with probiotic bacteria in synbiotic fermented milk and colon targeted-release carrier. International Food Research Journal, 2022, 29 (4), p. 879-891. ⟨10.47836/ifrj.29.4.15⟩. ⟨hal-03759924⟩
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