Esterifilum sp. and microbial preparation thereof, and method for degrading plastic using the same

The microbial preparation of Microbacterium esteraromaticum 2A3-D1 solved the problem of the difficulty in degrading polyethylene and polypropylene plastics in freshwater environments, and achieved a significant biodegradation effect.

CN121022630BActive Publication Date: 2026-06-19HOHAI UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HOHAI UNIV
Filing Date
2025-07-16
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Currently, there are few strains with plastic degradation potential isolated from freshwater environments such as urban rivers, making it difficult to effectively degrade microplastics, especially polyethylene and polypropylene plastics.

Method used

Using Microbacterium esteraromaticum 2A3-D1 as the active ingredient, this microbial preparation, in liquid or solid form, utilizes its unique degradation capabilities to grow and degrade plastics using polyethylene or polypropylene as the sole carbon source.

Benefits of technology

Microbacterium esterae 2A3-D1 can significantly degrade polyethylene and polypropylene plastics, as evidenced by changes in plastic weight loss, surface morphology, and functional group analysis, demonstrating its effective biodegradation effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121022630B_ABST
    Figure CN121022630B_ABST
Patent Text Reader

Abstract

This invention relates to a microbial preparation of *Microbacterium esteraromaticum* and a method for degrading plastics using it. The strain is *Microbacterium esteraromaticum* 2A3-D1, registered with the China General Microbiological Culture Collection Center (CGMCC) on June 19, 2025, with accession number CGMCC No. 34950. The invention includes a microbial preparation containing *Microbacterium esteraromaticum* 2A3-D1 as the active ingredient. It also relates to a method for degrading polyethylene and polypropylene microplastics using *Microbacterium esteraromaticum* 2A3-D1. This strain can grow using polyethylene and polypropylene microplastics as the sole carbon source and has the ability to degrade them. Applying this invention to the in-situ degradation of polyethylene and polypropylene plastics in river environments has broad application prospects.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Polystyrene plastic and polyethylene plastic degrading bacterium as well as screening method and application thereof

    CN115960759A

  • Marine source microbacterium laminae CJB-Jou02 strain and application thereof

    CN119351247A