Alcohol from membrane processed concentrated cheese whey

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Ind. Eng. Chem., Prod. Res. Dev.; (United States)

DOI:https://doi.org/10.1021/i300005a018· OSTI ID:6722816

Rajagopalan, K; Kosikowskik, F V

A fermentable whey substrate in the form of a high solids permeate was obtained by reconstituting spray-dried whey powder to 36% total solids followed by ultrafiltration to separate the protein. The high solids permeate was demineralized to permit rapid yeast growth. The final permeate with 24% lactose and at pH 4.8 gave high yields of EtOH rapidly upon inoculation with lactose-fermenting yeasts. One yeast species, Kluyveromyces fragilis NRRL Y 2415, yielded 108.8 g of EtOH/L, giving 84.3% of the theoretical maximum. Batch EtOH productivity was 3.2 g/L/h. The cost analysis of the ultrafiltration-fermentation process is highly favorable, if evaporation instead of the widely used reverse osmosis is employed for preconcentration of whey.

• Research Organization: Dept Food Science, Cornell Univ, Ithaca, NY 14853
• OSTI ID: 6722816
• Journal Information: Ind. Eng. Chem., Prod. Res. Dev.; (United States), Journal Name: Ind. Eng. Chem., Prod. Res. Dev.; (United States) Vol. 21:1; ISSN IEPRA
• Country of Publication: United States
• Language: English

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ALCOHOLS
BIOCONVERSION
BIOSYNTHESIS
CARBOHYDRATES
COST
DISACCHARIDES
ETHANOL
FERMENTATION
FUNGI
HYDROXY COMPOUNDS
INDUSTRIAL WASTES
LACTOSE
MICROORGANISMS
OLIGOSACCHARIDES
ORGANIC COMPOUNDS
PLANTS
SACCHARIDES
SEPARATION PROCESSES
SYNTHESIS
WASTES
WHEY
YEASTS
YIELDS