PROCESS FOR PRODUCTION OF PURE GLUCOSE FROM CELLULOSE

• Main Authors: HUANG, Xiaoyan, WADEKAR, Prathamesh Chandrashekhar, MAHADIK, Chinmayee Ramray, PRAKASH, Indra, PATIL, Mallikarjun Laxmiputra, LALI, Arvind Mallinath, CHOUDHARI, Vikram Gunvant, PATIL, Parmeshwar Shivajirao, ODANETH, Annamma Anil, VICTORIA, Juliet Joanna, ASODEKAR, Bhupal Ravindra
• Format: Patent
• Language: English; French; German
• Published: 30.05.2018
• Subjects: BEER; BIOCHEMISTRY; CHEMISTRY; ENZYMOLOGY; FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE; FOODS OR FOODSTUFFS; FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J; HUMAN NECESSITIES; METALLURGY; MICROBIOLOGY; MUTATION OR GENETIC ENGINEERING; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL; SPIRITS; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES; VINEGAR; WINE

The present disclosure provides a process for production of glucose having purity greater than 98% from pretreated cellulosic biomass comprising 50-95% cellulose, using thermo-chemical and enzymatic treatments. The process of the disclosure involves mild acid and/or alkali treatment of the pretreated cellulosic biomass for production of treated cellulosic biomass residue comprising polysaccharides containing greater than 98% glucose. The treatment results in high purity cellulose that is highly amenable to enzymatic hydrolysis and yields glucose having purity greater than 98%. The process of the disclosure also involves membrane separation of enzymes and oligosaccharides for recycling and separation of glucose to avoid product feedback inhibition.