METHOD FOR PREPARING PURIFIED POLYHYDROXYALKANOATE

Title:

METHOD FOR PREPARING PURIFIED POLYHYDROXYALKANOATE

Document Type and Number:

WIPO Patent Application WO/2024/025284

Kind Code:

A1

Abstract:

A method for preparing purified polyhydroxyalkanoate of the present invention may lower the b* value of a final product more than the conventional value by means of a decolorization step using two types of oxidizing agents sequentially. In addition, in the present invention, by using sodium chlorite (NaClO2), as a primary oxidizing agent, the effect of improving color is significant, and there is almost no decrease in molecular weight.

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Inventors:

HONG CHANG YOUNG (KR)
SEO DONG JUNE (KR)
KIM DA EUN (KR)
LEE HAN-SOL (KR)
LEE ILGYU (KR)
KIM JUNG MIN (KR)

Application Number:

PCT/KR2023/010686

Publication Date:

February 01, 2024

Filing Date:

July 24, 2023

Export Citation:

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Assignee:

CJ CHEILJEDANG CORP (KR)

International Classes:

C12P7/625; C12N9/50

Domestic Patent References:

WO2022015539A1

2022-01-20

Foreign References:

KR20210111187A	2021-09-10
KR100198830B1	1999-06-15
KR20210124968A	2021-10-15
KR20220058568A	2022-05-09

Attorney, Agent or Firm:

FIRSTLAW P.C. (KR)

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