The Protective Effect of Microcapsules (Pullulan / Sucrose / Whey Protein) on Vitality of Lactobacillus bulgaricus QY-2
Journal of physics(2021)
Abstract
The purpose of this study was to prepare microencapsules containing L. bulgaricus QY2 by using pulluan, sucrose and whey protein as wall material and to evaluate the survival of the encapsulated L. bulgaricus QY2. Pullulan, sucrose and whey protein were selected to optimize the compound protective agent, L9 (33) orthogonal test design was carried out to determine the activity of L. bulgaricus QY2. Through the analyses that can reflect the core material for encapsulant protection indicators such as survival rate and vitality of L. bulgaricus QY2. When the microcapsule wall material was composed of 2 wt% pullulan, 10 wt% sucrose and 10 wt% whey protein, the survival rate of L. bulgaricus QY2 was the highest. In addition, the L. bulgaricus QY2 microcapsule combination of pullulan at 1 wt%, sucrose at 10 wt% and whey protein at 10 wt% had the highest activity.
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Key words
whey protein,microcapsules,sucrose,pullulan
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