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Microencapsulation of Lactobacillus plantarum DKL 109 using External Ionic Gelation Method
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 Title & Authors
Microencapsulation of Lactobacillus plantarum DKL 109 using External Ionic Gelation Method
Chun, Honam; Kim, Cheol-Hyun; Cho, Young-Hee;
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The aim of this study was to apply the external ionic gelation using an atomizing spray device comprised of a spray gun to improve the viability of Lactobacillus plantarum DKL 109 and for its commercial use. Three coating material formulas were used to microencapsulate L. plantarum DKL 109: 2% alginate (Al), 1% alginate/1% gellan gum (Al-GG), and 1.5% alginate/3% gum arabic (Al-GA). Particle size of microcapsules was ranged from 18.2 to depending on the coating materials. Al-GA microcapsules showed the highest microencapsulation yield (98.11%) and resulted in a significant increase in survivability of probiotic in a high acid and bile environment. Encapsulation also improved the storage stability of cells. The viability of encapsulated cells remained constant after 1-mon storage at ambient temperature. The external ionic gelation method using an atomizing spray device and the Al-GA seems to be an efficient encapsulation technology for protecting probiotics in terms of scale-up potential and small microcapsule size.
probiotics;Lactobacillus plantarum;external gelation;atomizing spray device;
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