Succinic acid
Succinic acid
110-15-6
disodium succinate
Phthalocyanine pigment
Compound dyes
Compound green
Composite blue
BACKGROUND OF THE INVENTION:Process for producing succinic acid(cas:110-15-6) from sucrose
Release time:2016/7/5 22:00:55


BACKGROUND OF THE INVENTION

(1) Field of the Invention
The present invention relates to a process for producing glucose and fructose from sucrose by hydrolysis using succinic acid. The hydrolysate can be used to produce the glucose/fructose or can be used as a carbon source for fermentations.

(2) Description of the Related Art
The use of inorganic acids, such as hydrochloric acid, to hydrolyze sucrose to glucose and fructose is known to those skilled in the art. An illustrative process is described in published U.S. application 2004 0231662 to De Mendonca Ferreira et al. The prior art has generally focussed on enzymatic hydrolysis of sucrose to produce glucose and/or fructose as evidenced by U.S. Pat. Nos. 5,998,177 and 6,660,502 to Catani et al.

Succinic acid(cas:110-15-6) is an organic acid with two carboxylic groups. It is produced today mainly petrochemically from butane through maleic anhydride. Succinic acid(cas:110-15-6) is currently a low volume chemical. By production of succinic acid using biomass instead of petrochemicals as raw material, many new applications are possible. The production does not contribute to the accumulation of greenhouse gases since the feedstocks are renewable. A report from the U.S. Department of Energy designates succinic acid as a top twelve building block chemical produced from biomass (Werpy T., et al., Top Value Added Chemicals from Biomass. U.S. Department of Energy: Oak Ridge (2004)). Succinic acid(cas:110-15-6) can be used as a commodity or specialty chemical according to the report. As a commodity chemical it can substitute chemicals based on benzene and other intermediate petrochemicals to for instance produce polyester, solvents and other acids. Food ingredients, fuel additives and environmentally benign deicers are examples of specialty chemicals from succinic acid. The feedstocks of interest for producing succinic acid contain starch, hemicellulose or cellulose and can come from agricultural residues like corn fibres, forest products or beat and cane sugar.

Fermentation can be accomplished with a number of different organisms. E. coli mutant AFP184 (described elsewhere) is used. The sugar available in sugar beet or cane is sucrose. It is a disaccharide of glucose and fructose. E. coli are not able to utilize sucrose, but can utilize glucose and fructose. Therefore, it is necessary to hydrolyze the sucrose before fermentation. Hydrolysis is normally performed with concentrated or dilute mineral acids. These acids are added to the process and require separate and costly recovery processes.

Bacteria which enable the production of succinic acid(cas:110-15-6) are well known. Examples are U.S. Pat. No. 6,265,190 to Yedur, U.S. Pat. No. 6,743,610 to Donnelly et al. This acid has not been used for the production of glucose and fructose.


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