Premium
Cellulolytic Enzymes and Antibacterial Activity of Auricularia polytricha
Author(s) -
LU J. V.,
TANG A. V.
Publication year - 1986
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1986.tb13907.x
Subject(s) - micrococcus luteus , cellulase , bacillus cereus , food science , pseudomonas fluorescens , microbiology and biotechnology , bacteria , antibacterial activity , chemistry , biology , cellulose , staphylococcus aureus , biochemistry , genetics
Auriculariu polytricha , an edible fungus, was grown in the laboratory and examined for composition and its ability to hydrolyze cellulose and hemicellulose. On a dry weight basis A. polytricha was highest in protein (7.59%), followed by fiber (3.69%) and lowest in fat (1.12%). Appreciable amounts of calcium and zinc were also present in the fruiting body of A. polyrricha . The fungus produced substantial amounts of cellulase and hemicellulase. The optimum conditions were pH 4 and 30°C for cellulase, and pH 6 and 60°C for hemicellulase. A. polyrricha also produced an antibacterial substance and inhibited the Gram positive bacteria, Bacillus subtillus, Bacillus cereus, Micrococcus luteus, and Staphylococcus nureus , but not Gram negative bacteria, Alcaligenes viscolactis, Escherichia coli, and Pseudomonas fluorescens.