Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Reexamination Certificate
2007-05-15
2007-05-15
Chism, B. Dell (Department: 1654)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
C435S136000, C435S041000
Reexamination Certificate
active
10438244
ABSTRACT:
A method for production of lactic acid involving extracting protein from a natural renewable feedstock, preferably extracted from lignocellulose sources such as soybean hull, separating the feedstock into liquid and solid substrate feedstock, steam exploding the solid substrate feedstock by placing the solid feedstock in a pressure chamber, pressurizing the steam chamber with saturated steam, maintaining the pressure until the solid feedstock reaches temperatures in excess of the boiling point of water at atmospheric pressure, and explosively decompressing the pressure to a pressure no greater than atmospheric pressure. Hydrolyzing the steam-exploded feedstock by either acid hydrolysis or enzyme hydrolysis, and fermenting the resulting hydrolyzed feedstock to produce lactic acid. The hydrolyzing and fermenting steps may be carried out simultaneously, followed by recovering the lactate from the resultant material.
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Agblevor Foster A.
Evans Timothy G.
Chism B. Dell
Holroyd Mary-Jacq
Johnston Holroyd
Wessex Incorporated
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