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http://dx.doi.org/10.9721/KJFST.2015.47.5.633

Effect of Coating Materials on the Stability of Spray-Dried Lactobacillus Powder during Storage  

Kim, Soojin (Department of Bioresources and Food Science, Konkuk University)
Lee, SangYoon (Department of Bioresources and Food Science, Konkuk University)
Han, Jong-Kwon (MILAE Resources ML Co., Ltd.)
Lee, Jae-Kwon (Department of Food Science and Biotechnology, Kyonggi University)
Choi, Mi-Jung (Department of Bioresources and Food Science, Konkuk University)
Publication Information
Korean Journal of Food Science and Technology / v.47, no.5, 2015 , pp. 633-638 More about this Journal
Abstract
Lactobacillus is a probiotic that suppresses the growth of pathogens while preventing constipation, diarrhea, and intestinal inflammation. However, various environmental conditions such as pH and temperature affect the growth of Lactobacillus. In this study, Lactobacillus plantarum was encapsulated with starch using a spray dryer to protect the viability of the organism during storage and to increase its acid tolerance. The lower water activity and storage temperature resulting from this method influenced the survival of L. plantarum. In encapsulated Lactobacillus powders, viability of Lactobacillus was increased during storage at $20^{\circ}C$ relative to that of L. plantarum stored at $35^{\circ}C$ in the same water activity conditions. Furthermore, L. plantarum encapsulated in starch with ginger showed increased viability when compared to non-encapsulated L. plantarum stored without treatment. Finally, based on a simulated digestion test, encapsulated L. plantarum survived at a pH of 2, whereas the non-encapsulated L. plantarum did not. Thus, coating the encapsulated powder with these materials was effective in maintaining Lactobacillus viability.
Keywords
Lactobacillus plantarum; coating materials; encapsulation; storage stability; spray-dried powder;
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Times Cited By KSCI : 2  (Citation Analysis)
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