Process for second generation lactic acid production

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United States of America Patent

PATENT NO 12110530
APP PUB NO 20220290195A1
SERIAL NO

17691912

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Abstract

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The present invention provides an improved process for high titer lactic acid production using simultaneous saccharification and co-fermentation process using acid treated lignocellulosic biomass. The process comprises of pretreating lignocellulosic biomass comprising C5 and C6 sugars with dilute acid and superheated steam at a temperature ranging from 150-210° C.; neutralizing the pretreated lignocellulosic biomass of step (i) with NaOH pellets; and adding cellulase enzyme in the range of 1.5 to 10 FPU/g, bacteria, nutrients and buffering agent to the neutralized slurry obtained in step (ii) for hydrolysis and co-fermentation of C5 and C6 sugars at a temperature ranging from 40-45° C. for a period of 120-144 hours to obtain lactic acid. The process of the present invention requires simple nutrients and results in high titer lactic acid production within shortest duration of time.

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Patent Owner(s)

Patent OwnerAddress
INDIAN OIL CORPORATION LIMITED400051 MUMBAI
DEPARTMENT OF BIOTECHNOLOGYCGO COMPLEX LODI ROAD BLOCK 2 7TH FLOOR NEW DELHI 110 003

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gupta, Ravi Prakash Faridabad, IN 31 6
Kumar, Ravindra Faridabad, IN 261 3174
Puri, Suresh Kumar Faridabad, IN 45 35
Raj, Tirath Faridabad, IN 2 0
Ramakumar, Sankara Sri Venkata Faridabad, IN 142 104
Satlewal, Alok Faridabad, IN 8 0
Sivagurunathan, Periyasamy Faridabad, IN 1 0

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