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投稿时间:2023-11-27
投稿时间:2023-11-27
中文摘要: 为提高发酵乳杆菌CECT 5716 的活性,通过低聚糖筛选、低聚糖与活性物质的复配探究益生元协同作用对益生菌活性的影响,并将利用乳化法制备的反气泡微胶囊用于冻干酸奶块,探究益生元协同作用在食品体系对发酵乳杆菌CECT 5716 的保护作用。结果表明:2.5 g/L 低聚果糖和2.0 g/L 活性物质、没食子酸的协同作用对发酵乳杆菌CECT 5716 的促进和保护作用最佳。反气泡微胶囊的包埋率为(66.71±0.85)%,平均粒径为(42.18±0.27)μm。加入反气泡微胶囊后,冻干酸奶块活菌数仅减少0.58 lg(CFU/g),硬度和脆度显著增加。
Abstract:The activity of Lactobacillus fermentum CECT 5716 was improved by the combination of oligosaccharides and active substances. The anti-bubble microcapsules prepared with the emulsification method were used in freeze-dried yogurt blocks to investigate the protective effects of prebiotics on L.fermentum CECT 5716 in food. The results showed that the combination of 2.5 g/L oligofructose and 2.0 g/L gallic acid had the best growth-promoting and protective effects on L. fermentum CECT 5716. The anti-bubble microcapsules showcased an encapsulation rate of(66.71±0.85)%,with an average particle size of(42.18±0.27)μm. After the addition of the anti-bubble microcapsules,the number of viable bacteria in the freeze-dried yogurt blocks decreased by only 0.58 lg(CFU/g),and the hardness and brittleness significantly increased.
keywords: Lactobacillus fermentum CECT 5716 prebiotics synergistic effect anti-bubble microcapsules viable count freeze-dried yogurt blocks
文章编号:202419010 中图分类号: 文献标志码:
基金项目:石家庄市科技计划项目(221500344A);河北省赞皇县科学技术研究与发展计划项目(202203);河北省重点研发计划项目(22322909D);天津市科技计划项目(22ZYCGSN00320)
作者 | 单位 |
李佳怡1,杨琳1,陈晖1,康社强2,王宇3,李红娟1,于景华1,李洪波1* | 1.天津科技大学食品科学与工程学院,天津 300457;2.诺达生物科技(赞皇)有限公司,河北 石家庄 051230;3.石家庄学院化工学院,河北 石家庄 050035 |
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