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Nutrients 2015, 7(2), 831-848; doi:10.3390/nu7020831

Preparation of Eleutherine americana-Alginate Complex Microcapsules and Application in Bifidobacterium longum

1
Department of Biology and Applied Biology, Faculty of Science and Technology, Songkhla Rajabhat University, Songkhla 90000, Thailand
2
Department of Food Technology, Faculty of Agro-industry, Prince of Songkla University, Songkhla 90112, Thailand
3
Department of Microbiology and Natural Product Research Center of Excellence, Faculty of Science, Prince of Songkla University, Songkhla 90112, Thailand
*
Author to whom correspondence should be addressed.
Received: 6 December 2014 / Accepted: 15 January 2015 / Published: 26 January 2015
(This article belongs to the Special Issue Natural Products for Human Health)
View Full-Text   |   Download PDF [196 KB, uploaded 26 January 2015]

Abstract

Microencapsulation using extrusion and emulsion techniques was prepared for Bifidobacterium longum protection against sequential exposure to simulated gastric and intestinal juices, refrigeration storage and heat treatment. Eleutherine americana was used as the co-encapsulating agent. Hydrolysis of E. americana by gastric and intestinal juices was also determined. E. americana and its oligosaccharide extract demonstrated their resistance to low pH and partial tolerance to human α-amylase. Microencapsulated B. longum with E. americana and oligosaccharide extract prepared by the extrusion technique survived better than that by the emulsion technique under adverse conditions. Survival of microencapsulated cells after exposure to the juices and refrigeration storage was higher than free cells at Weeks 2 and 4. In addition, the viability of microencapsulated cells was better than free cells at 65 °C for 15 min. This work suggested that microencapsulated B. longum with E. americana offers the effective delivery of probiotics to colon and maintains their survival in food products. View Full-Text
Keywords: sodium alginate; Bifidobacterium longum; Eleutherine americana; microencapsulation sodium alginate; Bifidobacterium longum; Eleutherine americana; microencapsulation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Phoem, A.N.; Chanthachum, S.; Voravuthikunchai, S.P. Preparation of Eleutherine americana-Alginate Complex Microcapsules and Application in Bifidobacterium longum. Nutrients 2015, 7, 831-848.

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