Process for recovery of organic acids from fermentration broths

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C435S136000, C435S139000, C435S143000

Reexamination Certificate

active

06902917

ABSTRACT:
The present invention relates to a process for the recovery of an organic acid from a fermentation broth which comprises drying the fermentation broth to obtain a dried product, adding the dried product to a lower alcohol in the presence of an acid, and then removing the insoluble material to obtain an organic acid. In accordance with the recovery process of the present invention, organic acids of a high purity can be recovered in high yields from the whole fermentation solution containing various impurities with fewer steps as compared with conventional methods.

REFERENCES:
patent: 2421611 (1947-06-01), Gray
patent: 3234105 (1966-02-01), Motizuki et al.
patent: 3907639 (1975-09-01), Makover et al.
patent: 3912592 (1975-10-01), Makover et al.
patent: 4877735 (1989-10-01), Nogami et al.
patent: 4882277 (1989-11-01), Czytko et al.
patent: 4892823 (1990-01-01), Imai et al.
patent: 4933289 (1990-06-01), Imai et al.
patent: 4935359 (1990-06-01), Yin et al.
patent: 4960695 (1990-10-01), Hoshino et al.
patent: 4990441 (1991-02-01), Barthole et al.
patent: 5002881 (1991-03-01), Van Nispen et al.
patent: 5034105 (1991-07-01), Berglund et al.
patent: 5133976 (1992-07-01), Rouy
patent: 5312741 (1994-05-01), Hoshino et al.
patent: 5391770 (1995-02-01), Le Fur et al.
patent: 5503750 (1996-04-01), Russo, Jr. et al.
patent: 5522995 (1996-06-01), Cockrem
patent: 5681728 (1997-10-01), Miao
patent: 5705373 (1998-01-01), Yamaguchi et al.
patent: 5834231 (1998-11-01), Stoddard et al.
patent: 5852211 (1998-12-01), Dümpelmann et al.
patent: 0 174 624 (1986-03-01), None
EP 0 174 624 A1 (Boehm, W) Mar. 19, 1986 (abstract) World Patents Index [online]. London, U.K.: Derwent Publications, Ltd. [retrieved on Jan. 25, 2001]. Retrieved from: DialogClassic Web™, Accession No. 1986-077031/198612.
International Search Report for PCT/US00/40538, (mailed Jan. 15, 2001).
Unverified English language translation of European Patent 0 174 624. Bott et al (Previously cited as Document AL 1).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Process for recovery of organic acids from fermentration broths does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for recovery of organic acids from fermentration broths, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for recovery of organic acids from fermentration broths will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3519309

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.