Use of n-acetylneuraminic acid in promoting growth of gut bacteria

By adding 0.1%-1.0% Neu5Ac to the composition, the unclear relationship between Neu5Ac and Bifidobacterium growth was resolved, resulting in a significant reduction in the growth lag phase and an improvement in Bifidobacterium growth efficiency, making it suitable for various product fields.

CN122398822APending Publication Date: 2026-07-17CHILDRENS HOSPITAL OF FUDAN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHILDRENS HOSPITAL OF FUDAN UNIV
Filing Date
2026-05-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing studies, the relationship between Neu5Ac and the growth of Bifidobacteria has not been fully explored, making it difficult to directly influence the growth of Bifidobacteria using Neu5Ac, especially when it is not dependent on their metabolic capacity.

Method used

The addition of N-acetylneuraminic acid (Neu5Ac) to the composition at a weight-volume percentage of 0.1%-1.0% promotes the growth of intestinal bacteria and/or shortens the growth retardation period. It is suitable for culture media, probiotic preparations, infant formula, functional foods and pet nutritional supplements.

Benefits of technology

It significantly shortens the growth lag phase of Bifidobacteria, accelerates their entry into the logarithmic growth phase, increases the maximum biomass of Bifidobacteria, and promotes their growth independent of the strain's Neu5Ac metabolic capacity, which is universal.

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Abstract

本申请涉及微生物生长的技术领域,公开了N‑乙酰神经氨酸在促进肠道菌生长中的应用。本申请发现,N‑乙酰神经氨酸能够普遍性地促进双歧杆菌等肠道菌的早期快速生长,显著缩短其生长迟滞期,加速其进入对数生长期,且该促生长效应不完全依赖于菌株自身对N‑乙酰神经氨酸的代谢利用能力。本发明为优化婴幼儿配方食品和益生菌制剂提供了新的技术方案。
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