Microencapsulation of Lactobacillus plantarum DKL 109 using External Ionic Gelation Method

作者：Chun Honam; Kim Cheol Hyun; Cho Young Hee^*

来源：Korean Journal for Food Science of Animal Resources, 2014, 34(5): 692-699.

DOI：10.5851/kosfa.2014.34.5.692

• probiotics
• Lactobacillus plantarum
• external gelation
• atomizing spray device

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 23.01 mu m 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.

• 出版日期2014-10