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Microencapsulation of alginate-immobilized bagasse with Lactobacillus rhamnosus NRRL 442: Enhancement of survivability and themotolerance

Shaharuddin, Shahrulzaman and Muhamad, Ida Idayu (2015) Microencapsulation of alginate-immobilized bagasse with Lactobacillus rhamnosus NRRL 442: Enhancement of survivability and themotolerance. Carbohydrate Polymers, 119 . pp. 173-181. ISSN 1448-617

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Official URL: http://dx.doi.org/10.1016/j.carbpol.2014.11.045

Abstract

The aim of this research was to enhance the survivability of Lactobacillus rhamnosus NRRL 442 against heat exposure via a combination of immobilization and microencapsulation processes using sugarcane bagasse (SB) and sodium alginate (NaA), respectively. The microcapsules were synthesized using different alginate concentration of 1, 2 and 3% and NaA:SB ratio of 1:0, 1:1 and 1:1.5. This beneficial step of probiotic immobilization before microencapsulation significantly enhanced microencapsulation efficiency and cell survivability after heat exposure of 90°C for 30 s. Interestingly, the microcapsule of SB-immobilized probiotic could obtain protection from heat using microencapsulation of NaA concentration as low as 1%. SEM images illustrated the incorporation of immobilized L. rhamnosus within alginate matrices and its changes after heat exposure. FTIR spectra confirmed the change in functional bonding in the presence of sugarcane bagasse, probiotic and alginate. The results demonstrated a great potential in the synthesis of heat resistant microcapsules for probiotic.

Item Type:Article
Uncontrolled Keywords:alginate, bagasse, encapsulation, heat, immobilization, lactobacillus
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Energy Engineering
ID Code:58545
Deposited By: Haliza Zainal
Deposited On:04 Dec 2016 04:07
Last Modified:09 Aug 2021 07:16

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