State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.
Science Center for Future Foods, Jiangnan University, Wuxi, China.
Crit Rev Food Sci Nutr. 2024;64(10):2794-2810. doi: 10.1080/10408398.2022.2126818. Epub 2022 Sep 28.
The application of probiotics is limited by the loss of survival due to food processing, storage, and gastrointestinal tract. Encapsulation is a key technology for overcoming these challenges. The review focuses on the latest progress in probiotic encapsulation since 2020, especially precision engineering on microbial surfaces and microbial-mediated role. Currently, the encapsulation materials include polysaccharides and proteins, followed by lipids, which is a traditional mainstream trend, while novel plant extracts and polyphenols are on the rise. Other natural materials and processing by-products are also involved. The encapsulation types are divided into rough multicellular encapsulation, precise single-cell encapsulation, and microbial-mediated encapsulation. Recent emerging techniques include cryomilling, 3D printing, spray-drying with a three-fluid coaxial nozzle, and microfluidic. Encapsulated probiotics applied in food is an upward trend in which "classic probiotic foods" (yogurt, cheese, butter, chocolate, etc.) are dominated, supplemented by "novel probiotic foods" (tea, peanut butter, and various dry-based foods). Future efforts mainly include the effect of novel encapsulation materials on probiotics in the gut, encapsulation strategy oriented by microbial enthusiasm and precise encapsulation, development of novel techniques that consider both cost and efficiency, and co-encapsulation of multiple strains. In conclusion, encapsulation provides a strong impetus for the food application of probiotics.
益生菌的应用受到食品加工、储存和胃肠道中生存能力丧失的限制。包封是克服这些挑战的关键技术。本综述重点介绍了 2020 年以来益生菌包封的最新进展,特别是微生物表面的精密工程和微生物介导的作用。目前,包封材料包括多糖和蛋白质,其次是脂质,这是传统的主流趋势,而新型植物提取物和多酚正在兴起。其他天然材料和加工副产物也涉及其中。包封类型分为粗糙的多细胞包封、精确的单细胞包封和微生物介导的包封。最近新兴的技术包括冷冻粉碎、3D 打印、带有三流体同轴喷嘴的喷雾干燥和微流控。应用于食品的包封益生菌呈上升趋势,其中“经典益生菌食品”(酸奶、奶酪、黄油、巧克力等)为主导,辅以“新型益生菌食品”(茶、花生酱和各种干基食品)。未来的努力主要包括新型包封材料对肠道内益生菌的影响、以微生物活性和精确包封为导向的包封策略、考虑成本和效率的新型技术的发展以及多菌株的共包封。总之,包封为益生菌在食品中的应用提供了强大的动力。