Membrane biotechnology, co-immobilization, and aqueous two-phase systems: alternatives in bioconversion of cellulose

Conference · Thu Jan 01 00:00:00 EST 1981 · Biotechnol. Bioeng. Symp.; (United States)

OSTI ID:5354409

Hahn-Haegerdal, B; Andersson, E; Lopez-Leiva, M; Mattiasson, B

Three different techniques having complementary features have been applied to the bioconversion of cellulose to ethanol: (1) membrane biotechnology involving ultrafiltration and reverse osmosis allows conversion of particulate substrates with soluble biocatalysts, continuous removal of inhibitory products, and low-energy upgrading of dilute product streams; (2) co-immobilization of enzymes and microorganisms results in new metabolic combinations, allowing microbial conversion of nondigestible substrates, removal of inhibitory intermediates, and continuous operation; (3) aqueous two-phase systems are biocompatible and allow extractive bioconversions in that soluble biocatalysts and particulate substrates can be partitioned to one phase while products can be partitioned and upgraded in the other phase.

• Research Organization: Univ. of Lund, Sweden
• OSTI ID: 5354409
• Report Number(s): CONF-810554-
• Journal Information: Biotechnol. Bioeng. Symp.; (United States), Vol. 11; Conference: 3. symposium on biotechnology in energy production and conservation, Gatlinburg, TN, USA, 12 May 1981
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
CELLULOSE
BIOCONVERSION
ETHANOL
PRODUCTION
ENZYMATIC HYDROLYSIS
IMMOBILIZED ENZYMES
OSMOSIS
SACCHARIFICATION
ULTRAFILTRATION
ALCOHOLS
CARBOHYDRATES
CHEMICAL REACTIONS
DECOMPOSITION
DIFFUSION
FILTRATION
HYDROLYSIS
HYDROXY COMPOUNDS
LYSIS
ORGANIC COMPOUNDS
POLYSACCHARIDES
SACCHARIDES
SEPARATION PROCESSES
SOLVOLYSIS
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