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US 11,028,385 B2Granted
Stable lignocellulolytic enzyme composition
AssigneesIndian Oil Corporation Limited, Department of Biotechnology
InventorsAlok Satlewal, Ruchi Agrawal, Ravindra Kumar, Ravi Prakash Gupta, Suresh Kumar Puri, Sankara Sri Venkata Ramakumar
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Abstract
The present invention relates to a formulation to stabilize lignocellulolytic enzyme mixture. This invention in particular relates to a formulation composed of lignocellulolytic enzyme with critical dosages of molasses either with petrochemical waste or glycerol as an additive to improve enzyme stability in a synergistic manner.
Claims3
A lignocellulolytic enzyme composition, said composition comprising:
- (a) 65% to 85% w/w lignocellulolytic enzyme mixture having a cellulase activity of 96 Filter Paper Unit (FPU)/ml, a β-glucosidase activity of about 850 β-glucosidase (BGL)/ml, a xylanase activity of about 1300 Units (U)/ml and a protein content of about 350 mg/ml;
- (b) 10% to 15% w/w additive;
- and
- (c) 5% to 20% w/w molasses;
- wherein the additive is a petrochemical waste stream comprising 0-0.5% w/w MEG (mono-ethylene glycol), 0.5-30% w/w DEG (di-ethylene glycol), 40-50% w/w TEG (tri-ethylene glycol), 25-50% w/w TTEG (tetra-ethylene glycol), 1.3% w/w ethylene glycols having 5-12 monomeric units, 5842 ppm of iron, 196 ppm sodium, 126 ppm chromium, 112 ppm boron, and 78 ppm of manganese.
2 more elements
Dependencies are inferred from the claim text.