초록 ▼

An economically viable method of fermenting a mixture of sugars resulting from the acid hydrolysis of material containing cellulose and hemicellulose allows for the simultaneous fermentation of both pentose and hexose sugars. The sugar solution is mixed with a microbial organism known to produce a u

An economically viable method of fermenting a mixture of sugars resulting from the acid hydrolysis of material containing cellulose and hemicellulose allows for the simultaneous fermentation of both pentose and hexose sugars. The sugar solution is mixed with a microbial organism known to produce a useful fermentation product, and the fermentation process is allowed to proceed for 3-5 days, during and after which the fermentation products are removed and purified.

대표청구항 ▼

A method of fermenting a mixture of hexose and pentose sugars resulting from the acid hydrolysis of material containing cellulose and hemicellulose comprising: adjusting the pH of the sugars to neutralize any remaining acid and to remove metal ions; adding nutrients to allow growth of microbial orga

A method of fermenting a mixture of hexose and pentose sugars resulting from the acid hydrolysis of material containing cellulose and hemicellulose comprising: adjusting the pH of the sugars to neutralize any remaining acid and to remove metal ions; adding nutrients to allow growth of microbial organisms; mixing the sugars with a microbial organism known to produce a useful fermentation product from hexose sugar, said organism having been grown on pentose solutions for about 1 to 2 weeks; allowing the fermentation process to proceed for 3-5 days; continuously removing volatile fermentation products from non-volatile fermentation products by recirculating carbon dioxide through a cooled condensing column; collecting the volatile fermentation products from the condensing column; separating the microbial organism from the non-volatile fermentation products; and purifying the volatile and non-volatile fermentation products.