Evaluation of ethanol fermentation ability of Flammulina velutipes NBRC33210 from starch by consolidated bioprocessing

Ethanol fermentation from starch by a mushroom, Flammulina velutipes NBRC33210, was investigated. When the mycelia were anaerobically incubated with 5% of starch, only a small amount of ethanol was produced (less than 6% of the theoretical ethanol recovery rate). Aerobic culture was effective to pro...

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Bibliographic Details
Published in:Journal of Applied Glycoscience 2009, Vol.56(4), pp.267-271
Main Authors: Mori, S., National Food Research Inst., Tsukuba, Ibaraki (Japan), Kaneko, S
Format: Article
Language:English
Subjects:
ALCOHOLES
ALCOHOLS
ALCOOL
ALMIDON
AMIDON
Amylolytic enzymes
Basidiocarps
ETANOL
ETHANOL
ethanol fermentation
FERMENTACION
FERMENTATION
FLAMMULINA
FLAMMULINA VELUTIPES
GLICOSIDASAS
Glucan 1,4- alpha -glucosidase
GLUCANE
GLUCANOS
GLUCANS
GLUCOAMILASA
GLUCOAMYLASE
GLYCOSIDASE
GLYCOSIDASES
http://www.fao.org/aos/agrovoc#c_10677
http://www.fao.org/aos/agrovoc#c_15976
http://www.fao.org/aos/agrovoc#c_23922
http://www.fao.org/aos/agrovoc#c_249
http://www.fao.org/aos/agrovoc#c_2855
http://www.fao.org/aos/agrovoc#c_3285
http://www.fao.org/aos/agrovoc#c_3308
http://www.fao.org/aos/agrovoc#c_36285
http://www.fao.org/aos/agrovoc#c_7369
Mycelia
Seeds
STARCH
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Summary:Ethanol fermentation from starch by a mushroom, Flammulina velutipes NBRC33210, was investigated. When the mycelia were anaerobically incubated with 5% of starch, only a small amount of ethanol was produced (less than 6% of the theoretical ethanol recovery rate). Aerobic culture was effective to produce amylolytic enzymes from F. velutipes and a significant amount of ethanol was produced (32.4% of the theoretical ethanol recovery rate) when the mycelia were anaerobically incubated with 5% of starch after 7 days of aerobic seed culture. Addition of alpha-amylase into the culture did not influence ethanol fermentation from starch, however, alpha-glucosidase and glucoamylase were effective for the ethanol fermentation by F. velutipes NBRC33210. The maximum ethanol conversion rate for the starch was 72.6% when 0.1 U/mL of glucoamylase was added to the culture.
ISSN:1344-7882
1880-7291
1880-7291
DOI:10.5458/jag.56.267