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Research Articles

Microencapsulation of Lactobacillus plantarum LN66 and its survival potential under different packaging conditions

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Pages 601-608 | Received 04 Jun 2022, Accepted 04 Nov 2022, Published online: 24 Nov 2022
 

Abstract

Microcapsules of Lactobacillus plantarum LN66 were prepared to improve the cell viability in simulated gastrointestinal and different packaging conditions. Microcapsules containing Lactobacillus plantarum LN66 were produced by complex coacervation followed by freeze drying and characterised by water activity, moisture content, size, encapsulation efficiency, SEM, FTIR, XRD, as well as the resistance of probiotics to the simulated gastrointestinal tract and storage under different packaging conditions. The microcapsules presented the particle size of 196.57 ± 1.46 μm and the encapsulation efficiency of 75.26 ± 1.95% (w/w). After simulated gastrointestinal conditions, viability of encapsulated cells was 71.33 ± 0.99% (w/w) and 70.39 ± 0.86% (w/w), separately, while that of free cells was only 45.45 ± 0.5% (w/w) and 8.59 ± 0.67% (w/w). Compared with aluminium foil, the viable cells in glass bottles at 4 °C and 25 °C was increased 1.1-fold and 1.4-fold, respectively. Complex coacervation could be considered an appropriate alternative to increase the viability of probiotics.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Key Research and Development Program of China under Grant [No. 2018YFC1603300] and Jiangsu Province North Jiangsu Special Project under Grant [No. SZ-SQ2017049].

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