Enteric Delivery of Probiotics: Challenges, Techniques, and Activity Assays

Probiotics, as live microbial agents, play a pivotal role in modulating host microbiota balance, enhancing immunity, and improving gastrointestinal health. However, their application is hindered by critical challenges, such as inactivation during processing, storage, and gastrointestinal delivery, a...

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Main Authors: Chunying Sun, Zhidong Zhang, Yantong Sun, Xueyuan Sun, Yan Jin, Jingwen Zhu, Jiaxin Yu, Tao Wu
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Foods
Subjects:
Online Access:https://www.mdpi.com/2304-8158/14/13/2318
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author Chunying Sun
Zhidong Zhang
Yantong Sun
Xueyuan Sun
Yan Jin
Jingwen Zhu
Jiaxin Yu
Tao Wu
author_facet Chunying Sun
Zhidong Zhang
Yantong Sun
Xueyuan Sun
Yan Jin
Jingwen Zhu
Jiaxin Yu
Tao Wu
author_sort Chunying Sun
collection DOAJ
description Probiotics, as live microbial agents, play a pivotal role in modulating host microbiota balance, enhancing immunity, and improving gastrointestinal health. However, their application is hindered by critical challenges, such as inactivation during processing, storage, and gastrointestinal delivery, as well as low colonization efficiency. This article comprehensively reviews recent advances in probiotic delivery systems, focusing on innovative technologies, including hydrogels, nanocoatings, emulsions, and core–shell microgels. It provides an in-depth analysis of natural polyphenol-based nanocoatings and metal–phenolic network (MPN) single-cell encapsulation strategies for enhancing bacterial survival rates while highlighting the unique potential of microalgae-based bio-carriers in targeted delivery. Research demonstrates that well-designed edible delivery systems can effectively preserve probiotic viability and enable controlled intestinal release, offering novel strategies to reshape a healthy gut microbiome. While these systems show promise in maintaining probiotic activity and gut colonization, challenges remain in safety, scalable production, and clinical translation. Overcoming these barriers is crucial to fully harnessing probiotics for human health.
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institution Kabale University
issn 2304-8158
language English
publishDate 2025-06-01
publisher MDPI AG
record_format Article
series Foods
spelling doaj-art-71de04b487184fe2938bd79524fc7fd82025-08-20T03:50:17ZengMDPI AGFoods2304-81582025-06-011413231810.3390/foods14132318Enteric Delivery of Probiotics: Challenges, Techniques, and Activity AssaysChunying Sun0Zhidong Zhang1Yantong Sun2Xueyuan Sun3Yan Jin4Jingwen Zhu5Jiaxin Yu6Tao Wu7State Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, ChinaState Key Laboratory of Food Nutrition and Safety, Food Biotechnology Engineering Research Center of Ministry of Education, College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, ChinaProbiotics, as live microbial agents, play a pivotal role in modulating host microbiota balance, enhancing immunity, and improving gastrointestinal health. However, their application is hindered by critical challenges, such as inactivation during processing, storage, and gastrointestinal delivery, as well as low colonization efficiency. This article comprehensively reviews recent advances in probiotic delivery systems, focusing on innovative technologies, including hydrogels, nanocoatings, emulsions, and core–shell microgels. It provides an in-depth analysis of natural polyphenol-based nanocoatings and metal–phenolic network (MPN) single-cell encapsulation strategies for enhancing bacterial survival rates while highlighting the unique potential of microalgae-based bio-carriers in targeted delivery. Research demonstrates that well-designed edible delivery systems can effectively preserve probiotic viability and enable controlled intestinal release, offering novel strategies to reshape a healthy gut microbiome. While these systems show promise in maintaining probiotic activity and gut colonization, challenges remain in safety, scalable production, and clinical translation. Overcoming these barriers is crucial to fully harnessing probiotics for human health.https://www.mdpi.com/2304-8158/14/13/2318probioticsdelivery systemshydrogelnanocoatingemulsioncore–shell microgel
spellingShingle Chunying Sun
Zhidong Zhang
Yantong Sun
Xueyuan Sun
Yan Jin
Jingwen Zhu
Jiaxin Yu
Tao Wu
Enteric Delivery of Probiotics: Challenges, Techniques, and Activity Assays
Foods
probiotics
delivery systems
hydrogel
nanocoating
emulsion
core–shell microgel
title Enteric Delivery of Probiotics: Challenges, Techniques, and Activity Assays
title_full Enteric Delivery of Probiotics: Challenges, Techniques, and Activity Assays
title_fullStr Enteric Delivery of Probiotics: Challenges, Techniques, and Activity Assays
title_full_unstemmed Enteric Delivery of Probiotics: Challenges, Techniques, and Activity Assays
title_short Enteric Delivery of Probiotics: Challenges, Techniques, and Activity Assays
title_sort enteric delivery of probiotics challenges techniques and activity assays
topic probiotics
delivery systems
hydrogel
nanocoating
emulsion
core–shell microgel
url https://www.mdpi.com/2304-8158/14/13/2318
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