Abstract
Carrageenan can be used as an encapsulation material due to its gelling properties. Sodium alginate is traditionally used encapsulation material. However, different structural and viability issues were observed in different studies. The aim of this study was to improve the survival of L. brevis LBR1 using alginate-carrageenan beads through structural optimization. L. brevis LBR1 was microencapsulated by extrusion technique using varying concentration of carrageenan and alginate (To (0%: 0%) T1 (0.01%:1.5%), T2 (0.02%:1.5%), T3 (0.03%:1.5%), T4 (0.04%:1.5%), T5 (0.05%:1.5%). The beads were evaluated for release profile, storage stability and survival under simulated gastrointestinal conditions. All the treatments showed better encapsulation efficiency. The addition of carrageenan improved the structure of sodium alginate beads with better interlinkage. The free cells could not maintain their viability in GIT conditions as compare to encapsulated cells. The T5 comparatively showed better stability in simulated intestinal conditions. However, slow release was observed as compare to other formulations. Encapsulation significantly improved the probiotic viability using different combinations of carrageenan and alginate.
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29 March 2022
A Correction to this paper has been published: https://doi.org/10.1007/s11694-022-01383-5
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The authors are thankful to the National Institute of Food Science and Technology, University of Agriculture, Faisalabad for providing technical support and laboratory facilities during research work.
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Azam, M., Saeed, M., Ahmad, T. et al. Characterization of biopolymeric encapsulation system for improved survival of Lactobacillus brevis. Food Measure 16, 2292–2299 (2022). https://doi.org/10.1007/s11694-022-01334-0
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DOI: https://doi.org/10.1007/s11694-022-01334-0