Production and analysis of the biopolymer chitosan from Mucor rouxii. Final report, December 1985-July 1987
Technical Report
·
OSTI ID:7271717
To determine the potential for the production of chitosan with physiochemical properties from a fungal source, growth studies were conducted using Mucor rouxii. Growth of the organism under a variety of conditions was studied to determine the effects on polymer molecular-weight distributions and biomass production. Modifications of processing protocols were also evaluated to examine the effects of yields of chitosan extracted from the fungal cell wall as well as molecular-weight distribution. This represents the first such study where these factors were correlated to the yield and molecular-weight distribution of chitosan. Of the growth parameters evaluated, length of incubation, culture volume, source of inorganic salt in defined medium, and medium component concentration in complex medium had an effect on biomass and MW distributions. Processing parameters affecting the amount of chitosan extracted were the type and strength of acid and the homogenization of cell wall material prior to refluxing. Overall, weight average molecular weights of chitosan varied up to 8-fold in studies relating to fungal age, while up to 2-fold changes in molecular weight were affected by pH, medium type, and culture vessel size.
- Research Organization:
- Army Natick Research and Development Center, MA (USA)
- OSTI ID:
- 7271717
- Report Number(s):
- AD-A-214111/7/XAB; NATICK/TR--88/046
- Country of Publication:
- United States
- Language:
- English
Similar Records
Enhanced copper adsorption and morphological alterations of cells of copper-stressed Mucor rouxii
Electron microprobe and X-ray microfluorescence analyses of copper binding to active and inactivated cells of Mucor rouxii
Chelating ability of chitinous materials from Streptomyces, Mucor rouxii, Phycomyces blakesleeanus, and Choanephora cucurbitarum
Journal Article
·
Fri Feb 28 23:00:00 EST 1997
· Environmental Toxicology and Chemistry
·
OSTI ID:464852
Electron microprobe and X-ray microfluorescence analyses of copper binding to active and inactivated cells of Mucor rouxii
Conference
·
Tue Dec 30 23:00:00 EST 1997
·
OSTI ID:585789
Chelating ability of chitinous materials from Streptomyces, Mucor rouxii, Phycomyces blakesleeanus, and Choanephora cucurbitarum
Journal Article
·
Sat Aug 01 00:00:00 EDT 1981
· J. Appl. Biochem.; (United States)
·
OSTI ID:5615381
Related Subjects
09 BIOMASS FUELS
090800* -- Biomass Fuels-- Production-- (1990-)
091000 -- Biomass Fuels-- Properties & Composition-- (1990-)
AMINES
BIOCHEMISTRY
BIOCONVERSION
BIOLOGICAL MATERIALS
BIOMASS
CARBOHYDRATES
CELL CONSTITUENTS
CELL WALL
CHEMISTRY
CHITIN
CULTURE MEDIA
DIMENSIONS
DISTRIBUTION
DOCUMENT TYPES
ENERGY SOURCES
FERMENTATION
FUNGI
INCUBATION
LENGTH
MATERIALS
MODIFICATIONS
MOLECULAR WEIGHT
MUCOPOLYSACCHARIDES
NUTRIENTS
ORGANIC COMPOUNDS
PLANTS
POLYMERS
POLYSACCHARIDES
PROCESSING
PRODUCTION
PROGRESS REPORT
RENEWABLE ENERGY SOURCES
SACCHARIDES
SALTS
VOLUME
090800* -- Biomass Fuels-- Production-- (1990-)
091000 -- Biomass Fuels-- Properties & Composition-- (1990-)
AMINES
BIOCHEMISTRY
BIOCONVERSION
BIOLOGICAL MATERIALS
BIOMASS
CARBOHYDRATES
CELL CONSTITUENTS
CELL WALL
CHEMISTRY
CHITIN
CULTURE MEDIA
DIMENSIONS
DISTRIBUTION
DOCUMENT TYPES
ENERGY SOURCES
FERMENTATION
FUNGI
INCUBATION
LENGTH
MATERIALS
MODIFICATIONS
MOLECULAR WEIGHT
MUCOPOLYSACCHARIDES
NUTRIENTS
ORGANIC COMPOUNDS
PLANTS
POLYMERS
POLYSACCHARIDES
PROCESSING
PRODUCTION
PROGRESS REPORT
RENEWABLE ENERGY SOURCES
SACCHARIDES
SALTS
VOLUME