TY - JOUR
T1 - Co-cultivation of Trichoderma reesei RutC30 with three black Aspergillus strains facilitates efficient hydrolysis of pretreated wheat straw and shows promises for on-site enzyme production
AU - Kolasa, Marta
AU - Ahring, Birgitte Kiær
AU - Lübeck, Peter Stephensen
AU - Lübeck, Mette
N1 - Copyright © 2014 Elsevier Ltd. All rights reserved.
PY - 2014/7/1
Y1 - 2014/7/1
N2 - Co-cultivation of fungi may be an excellent system for on-site production of cellulolytic enzymes in a single bioreactor. Enzyme supernatants from mixed cultures of Trichoderma reesei RutC30, with either the novel Aspergillus saccharolyticus AP, Aspergillus carbonarius ITEM 5010 or Aspergillus niger CBS 554.65 cultivated in solid-state fermentation were tested for avicelase, FPase, endoglucanase and beta-glucosidase activity as well as in hydrolysis of pretreated wheat straw. Around 30% more avicelase activity was produced in co-cultivation of T. reesei and A. saccharolyticus than in T. reesei monoculture, suggesting synergistic interaction between those fungi. Fermentation broths of mixed cultures of T. reesei with different Aspergillus strains resulted in approx. 80% efficiency of hydrolysis which was comparable to results obtained using blended supernatants from parallel monocultures. This indicates that co-cultivation of T. reesei with A. saccharolyticus or A. carbonarius could be a competitive alternative for monoculture enzyme production and a cheaper alternative to commercial enzymes.
AB - Co-cultivation of fungi may be an excellent system for on-site production of cellulolytic enzymes in a single bioreactor. Enzyme supernatants from mixed cultures of Trichoderma reesei RutC30, with either the novel Aspergillus saccharolyticus AP, Aspergillus carbonarius ITEM 5010 or Aspergillus niger CBS 554.65 cultivated in solid-state fermentation were tested for avicelase, FPase, endoglucanase and beta-glucosidase activity as well as in hydrolysis of pretreated wheat straw. Around 30% more avicelase activity was produced in co-cultivation of T. reesei and A. saccharolyticus than in T. reesei monoculture, suggesting synergistic interaction between those fungi. Fermentation broths of mixed cultures of T. reesei with different Aspergillus strains resulted in approx. 80% efficiency of hydrolysis which was comparable to results obtained using blended supernatants from parallel monocultures. This indicates that co-cultivation of T. reesei with A. saccharolyticus or A. carbonarius could be a competitive alternative for monoculture enzyme production and a cheaper alternative to commercial enzymes.
U2 - 10.1016/j.biortech.2014.06.082
DO - 10.1016/j.biortech.2014.06.082
M3 - Journal article
C2 - 25043347
SN - 0960-8524
VL - 169
SP - 143
EP - 148
JO - Bioresource Technology
JF - Bioresource Technology
ER -