公开(公告)号：US20250034347A1

公开(公告)日：2025-01-30

申请号：US18710760

申请日：2022-11-15

Applicant: CARBIOS

Inventor： ALAIN MARTY ,  GRÉGORY ARNAL ,  SOPHIE DUQUESNE ,  VINCENT TOURNIER ,  ALEXANDRE GILLES

IPC: C08J11/10 ,  C12N9/18

Abstract: The present invention relates to the use of specific enzymes, more particularly of specific esterases having a polyester degrading activity, for the degradation of polyester or polyester containing material in acidic conditions at a pH between 3 and 6. The present invention also relates to a process for degrading polyester or polyester containing material, such as plastic products, comprises a step of enzymatic depolymerization implemented in acidic conditions at a pH between 3 and 6. The process of the invention is particularly suited to degrade polyethylene terephthalate, and polyethylene terephthalate containing material.

公开(公告)号：US20210171921A1

公开(公告)日：2021-06-10

申请号：US17263574

申请日：2019-07-26

Applicant: CARBIOS

Inventor： ISABELLE ANDRE ,  VINCENT TOURNIER ,  ALEXANDRE GILLES ,  SOPHIE DUQUESNE

IPC: C12N9/18 ,  C12N15/52 ,  C08J11/10

Abstract: The present invention relates to novel esterases, more particularly to esterase variants having improved activity and/or improved thermostability compared to the esterase of SEQ ID NO:1 and the uses thereof for degrading polyester containing material, such as plastic products. The esterases of the invention are particularly suited to degrade polyethylene terephthalate, and material containing polyethylene terephthalate.