Title:
POLYALKYLENE ALKYL COMPOUND FOR DEFOAMING FERMENTATION BROTH
Document Type and Number:
WIPO Patent Application WO/2023/050125
Kind Code:
A1
Abstract:
The present invention relates to a method for inhibiting the formation of foam in a process comprising the step of adding an effective amount of a foam control agent to a process mixture. The foam control agent comprises a compound that can be represented by the formula, RO (EO) n (PO) mH, where R is a linear hydrocarbon radical having from 12 to 18 carbon atoms; EO is ethylene oxide; PO is propylene oxide; n can be any integer from 2 to 9; and m can be any integer from 8 to 19. Furthermore, the compounds can be characterized in that the molecular weight of R is from 8 to 29 percent by weight of the compound. These compositions have been found to be superior in controlling foam formation versus conventional antifoamers in fermentation, preferably in amino acids fermentation and enzyme fermentation, more preferably in lysine, MSG and glucose oxidase fermentation.
Inventors:
QI WENJING (CN)
ZHONG ZEYU (CN)
CHEN XUE (US)
ZHONG ZEYU (CN)
CHEN XUE (US)
Application Number:
PCT/CN2021/121610
Publication Date:
April 06, 2023
Filing Date:
September 29, 2021
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
QI WENJING (CN)
ZHONG ZEYU (CN)
CHEN XUE (US)
QI WENJING (CN)
ZHONG ZEYU (CN)
CHEN XUE (US)
International Classes:
B01D19/04; C07C43/00
Foreign References:
| EP0404317A2 | 1990-12-27 | |||
| US20140004585A1 | 2014-01-02 |
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
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