Improved viability of trehalose on Lactobacillus plantarum embedded with whey protein concentrate/pullulan in simulated gastrointestinal conditions and its application in acid juice  

作　　者：Xiujuan Wang Haiyue Sun Jian Wu Yu Wang Zhiyi Ai Xinzhu Wang Bo Nan Yong Cao Xia Li Jingsheng Liu Yuhua Wang 

机构地区：[1]College of Food Science and Engineering,Jilin Agricultural University,Changchun 130118,China [2]Jilin Provincial Innovation Center for Food Biological Manufacture,Jilin Agricultural University,Changchun 130118,China [3]Changchun Customs Health Center,Changchun 130033,China [4]National Processing Laboratory for Soybean Industry and Technology,Changchun 130118,China [5]National Engineering Research Center for Wheat and Cord Deep Processing,Changchun 130118,China

出　　处：《Food Science and Human Wellness》2024年第6期3614-3623,共10页食品科学与人类健康（英文）

基　　金：Financial support was provided by the Jilin Provincial Science and Technology Department(20220202086NC);Jilin Provincial Science and Technology Development Plan Project(20220508115RC).

摘　　要：Trehalose(TRE)was used to improve the gastrointestinal tolerance of Lactobacillus plantarum embedded with whey protein concentrate/pullulan(WPC/PUL)hydrogel and the embedded L.plantarum was applied to juice.The study indicated that 5%TRE significantly increased the viable counts of L.plantarum embedded in WPC/PUL hydrogel from(8.83±0.03)to(9.14±0.04)(lg(CFU/g))in simulated gastric juice(SGJ)and from(9.13±0.04)to(9.38±0.04)(lg(CFU/g))in simulated intestinal juice,respectively.The addition of TRE improved the glass transition temperature of WPC/PUL hydrogel and decreased the hardness and its solubility in SGJ,which may be responsible for the improved protection of WPC/PUL hydrogels on L.plantarum.In addition,TRE increased the viable counts of L.plantarum in WPC/PUL probiotic microcapsule juice at low pH and high temperature during storage.

关 键 词：Lactobacillus plantarum Tolerance to the gastrointestinal tract Whey protein concentration PULLULAN TREHALOSE Hydrogel 

分 类 号：TS255.44[轻工技术与工程—农产品加工及贮藏工程] TS201.3[轻工技术与工程—食品科学与工程]