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Isolation and characterization of a novel exopolysaccharide from the fermented probiotic <i>Lactiplantibacillus plantarum</i> ZZU-1 and its application for attenuating autism-like behaviors.

Overview

Authors: Shuai Zhao1, Mengyi Sun1, Hanyan Li1, Ziyi Wang1, Ziliang Meng2, Yuhan Xu1, Siyi Mao1, Wenchen Wang1, Haowei Sun1
  1. School of Biological Engineering, Henan University of Technology, Zhengzhou, China
  2. College of International Education, Henan University of Technology, Zhengzhou, Henan, China
Institutions: Henan University of Technology (China)
Journal: Frontiers in microbiology, volume 17, article 1806688
Dates: received 8 February 2026; accepted 4 June 2026; published online 8 July 2026
Type: Research article · Language: English
License: CC BY
Identifiers: DOI 10.3389/fmicb.2026.1806688 · PMID 42487714 · PMCID PMC13388933 · OpenAlex W7167680828
Open access: gold, a free copy (OpenAlex)
Categories: autism (population), cellular / molecular (subfield)
Methods: Statistics
Keywords: antioxidants, autism, exopolysaccharides, gut microbiota, Lactiplantibacillus plantarum ZZU-1
Topic: Gut microbiota and health (Molecular Biology, Biochemistry, Genetics and Molecular Biology), according to OpenAlex
Funding: National Natural Science Foundation of China (32501355, 32500089); Henan University of Technology (2022BS065); Henan University; Natural Science Foundation of Henan Province
Citations: not cited yet (Europe PMC); 89 references in the paper

Abstract

Lactic acid bacteria-derived exopolysaccharides (EPS) are natural and safe functional biomolecules whose antioxidant potential is largely dependent on their specific chemical structures. Accumulating evidence suggests that LAB-EPS may exert indirect regulatory effects on oxidative stress-related diseases like autism spectrum disorder via modulating intestinal microecology and relieving oxidative stress in the gut-brain axis. In this study, a novel EPS (EPS-ZZU) was isolated from Lactiplantibacillus plantarum ZZU-1 of traditional fermented Suancai. Structural characterization revealed a 2.141 kDa molecular weight, with mannose, glucose and ribose in a 34.40:26.35:12.24 molar ratio, composed of α-configuration pyranose units. EPS-ZZU exhibited over 90% scavenging rates against the typical free radicals, including hydroxyl radical (⋅OH), 1,1-diphenyl-2-picrylhydrazyl radical (DPPH•), superoxide anion (O2•⁣–) and 2,2’-azinobis (3-ethylbenzothiazoline-6-sulfonate) cation radical (ABTS•+) at a concentration of 5 mg/mL, which was comparable to that of vitamin C (Vc). In a one-month mouse trial, EPS-ZZU significantly alleviated autism-like behaviors (social deficits, repetitive actions) by reducing oxidative stress and inflammation, enhancing intestinal barrier integrity, and reshaping gut microbiota-enriching beneficial taxa (Adlercreutzia, Christensenellaceae) and inhibiting pathogens (Erysipelatoclostridium). Metabolomics confirmed upregulated indole-3-acetate and downregulated cognitive impairment-associated metabolites (asymmetric dimethylarginine, homogentisic acid). These findings highlight EPS-ZZU’s therapeutic potential for autism and provide a new idea for developing more bioactive bacterial EPS antioxidants.

Reproduced under the paper's license (CC BY), from the paper cited above.

Code

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Data

Data links

Data availability statement

16s RNA sequencing of strain ZZU-1 was deposited in NCBI under the accession number PV945894, https://www.ncbi.nlm.nih.gov/search/all/?term=PV945894.1. Raw gut microbiota sequencing data have been deposited in the NCBI Sequence Read Archive under accession number PRJNA1307800, http://www.ncbi.nlm.nih.gov/bioproject/1307800. The raw gut microbiota-related metabolomics data have been deposited in MetaboLights under the accession number MTBLS3662, https://www.ebi.ac.uk/ebisearch/search?db=allebi&sortignorenull=true&query=MTBLS3662.

Reproduced under the paper's license (CC BY), from the paper cited above.

Versions

The history of this record: each version stored by the harvester or made by a correction of its authors or of the maintainers of its code, and what changed in its facts. The texts of the paper (its abstract, its availability statements) are not part of it; versions that changed only those are not listed.

Version 2, 28 September 2026

  • Funding: added National Natural Science Foundation of China: 32501355, 32500089; Henan University of Technology: 2022BS065; Henan University; Natural Science Foundation of Henan Province

Version 1, 27 September 2026: the first record

Recorded: type, language, journal, volume, pages, dates, 9 authors, 5 keywords, 89 references.

Cite

This paper

Zhao, S., Sun, M., Li, H., Wang, Z., Meng, Z., Xu, Y., Mao, S., Wang, W., & Sun, H. (2026). Isolation and characterization of a novel exopolysaccharide from the fermented probiotic <i>Lactiplantibacillus plantarum</i> ZZU-1 and its application for attenuating autism-like behaviors. Frontiers in microbiology, 17, 1806688. https://doi.org/10.3389/fmicb.2026.1806688

BibTeX

@article{zhao2026isolation,
author = {Zhao, Shuai and Sun, Mengyi and Li, Hanyan and Wang, Ziyi and Meng, Ziliang and Xu, Yuhan and Mao, Siyi and Wang, Wenchen and Sun, Haowei},
title = {{Isolation and characterization of a novel exopolysaccharide from the fermented probiotic \<i\>Lactiplantibacillus plantarum\</i\> ZZU-1 and its application for attenuating autism-like behaviors}},
journal = {Frontiers in microbiology},
year = {2026},
month = jul,
volume = {17},
pages = {1806688},
publisher = {Frontiers Media SA},
issn = {1664-302X},
doi = {10.3389/fmicb.2026.1806688},
url = {https://doi.org/10.3389/fmicb.2026.1806688},
pmid = {42487714},
pmcid = {PMC13388933}
}

RIS

TY - JOUR
AU - Zhao, Shuai
AU - Sun, Mengyi
AU - Li, Hanyan
AU - Wang, Ziyi
AU - Meng, Ziliang
AU - Xu, Yuhan
AU - Mao, Siyi
AU - Wang, Wenchen
AU - Sun, Haowei
TI - Isolation and characterization of a novel exopolysaccharide from the fermented probiotic <i>Lactiplantibacillus plantarum</i> ZZU-1 and its application for attenuating autism-like behaviors
T2 - Frontiers in microbiology
J2 - Front Microbiol
PY - 2026
DA - 2026/07/08
VL - 17
SP - 1806688
SN - 1664-302X
PB - Frontiers Media SA
DO - 10.3389/fmicb.2026.1806688
UR - https://doi.org/10.3389/fmicb.2026.1806688
LA - en
ER -

CSL-JSON

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