Extraction chemistry of fermentation product carboxylic acid

Journal Article · Sat Feb 01 00:00:00 EST 1986 · Biotechnol. Bioeng.; (United States)

DOI:https://doi.org/10.1002/bit.260280217· OSTI ID:5367280

Kertes, A S; King, C J

Within the framework of a program aiming to improve the existing extractive recovery technology of fermentation products, the state of the art is critically reviewed. The acids under consideration are propionic, lactic, pyruvic, succinic, fumaric, maleic, malic, itaconic, tartaric, citric, and isocitric, all obtained by the aerobic fermentation of glucose via the glycolytic pathway and glyoxylate bypass. With no exception, it is the undissociated monomeric acid that is extracted into carbon-bonded and phosphorus-bonded oxygen donor extractants. In the organic phase, the acids are usually dimerized. The extractive transfer process obeys the Nernst law, and the measured partition coefficients range from about 0.003 for aliphatic hydrocarbons to about 2 to 3 for aliphatic alcohols and ketones to about 10 or more for organophosphates. Equally high distribution ratios are measured when long-chain tertiary amines are employed as extractants, forming bulky salts preferentially soluble in the organic phase. 123 references.

• Research Organization: Univ. of California, Berkeley
• OSTI ID: 5367280
• Journal Information: Biotechnol. Bioeng.; (United States), Vol. 28:2
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
CARBOXYLIC ACIDS
EXTRACTION
AEROBIC CONDITIONS
ALCOHOLS
CHEMISTRY
CITRIC ACID
FERMENTATION
GLUCOSE
ITACONIC ACID
KETONES
LACTIC ACID
MALEIC ACID
MATERIALS RECOVERY
MONOCARBOXYLIC ACIDS
ORGANIC ACIDS
PROPIONIC ACID
PYRUVIC ACID
ALDEHYDES
BIOCONVERSION
CARBOHYDRATES
DICARBOXYLIC ACIDS
HEXOSES
HYDROXY ACIDS
HYDROXY COMPOUNDS
KETO ACIDS
MANAGEMENT
MONOSACCHARIDES
ORGANIC COMPOUNDS
PROCESSING
RECOVERY
SACCHARIDES
SEPARATION PROCESSES
WASTE MANAGEMENT
WASTE PROCESSING
090222* - Alcohol Fuels- Preparation from Wastes or Biomass- (1976-1989)
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)