Hydrolysis by commercial enzyme mixtures of AFEX-treated corn fiber and isolated xylans
- USDA Agricultural Research Service, Peoria, IL (United States)
- Texas A&M Univ., College Station, TX (United States)
Corn fiber is a coproduct produced during the corn wet-milling process and is similar to other high hemicellulose/cellulose-containing biomass such as grasses, straws, or bagasse, all of which represent potential fermentation feedstock for conversion into biofuels or other products. Corn fiber was subjected to ammonia-explosion (AFEX) treatment to increase degradability and then enzymatically digested with a combined mixture of commercial amylase, xylanase, and cellulose enzyme preparations. Whereas the starch and cellulose components were converted solely to glucose, oligosaccharides represented 30-40% of the xylan degradation products. This enzyme mixture also produced substantial oligosaccharides with xylans purified from corn fiber, corn germ, beech-wood, oatspelt, or wheat germ. Commercial xylan-degrading enzyme preparations containing xylanase, xylosidase, and arabinosidase activities were then used alone or in varying combinations to attempt to maximize degradation of these isolated xylans of differing chemical compositions. 25 refs., 5 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 588703
- Journal Information:
- Applied Biochemistry and Biotechnology, Journal Name: Applied Biochemistry and Biotechnology Journal Issue: 1 Vol. 62; ISSN 0273-2289; ISSN ABIBDL
- Country of Publication:
- United States
- Language:
- English
Similar Records
Comparison of enzymatic reactivity of corn stover solids prepared by dilute acid, AFEX™, and ionic liquid pretreatments
Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
55 BIOLOGY AND MEDICINE
BASIC STUDIES
AMMONIA
AMYLASE
BAGASSE
BIOMASS
BIOMASS CONVERSION PLANTS
CHEMICAL FEEDSTOCKS
DECOMPOSITION
ENZYMES
ETHANOL
FERMENTATION
GLUCOSE
HEMICELLULOSE
HYDROLYSIS
MAIZE
OLIGOSACCHARIDES
PRODUCTION
STARCH
XYLANASE
XYLANS