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|Title: ||Cellulase production by white-rot basidiomycetous fungi: solid-state versus submerged cultivation|
|Authors: ||Bentil, Joseph A.|
Meyer, Anne S.
|Keywords: ||Cellulase production|
|Issue Date: ||15-May-2018|
|Publisher: ||Springer-Verlag GmbH Germany|
|Abstract: ||White-rot basidiomycetous (WRB) fungi are a group of wood-decaying fungi that are known to be endowed with the ability to
secrete enzymes that can catalyze decomposition of a range of plant cell wall polysaccharides, including cellulose and lignin.
Expression of these enzymes is induced by the substrate and the enzyme yields obtained depend on the growth of the fungi and
thus the mode of cultivation. In order to exploit WRB fungi for local enzyme production for converting lignocellulosic materials
in biorefinery processes, the fungi can principally be cultivated in either solid-state (SSC) or submerged cultivation (SmC)
systems. In this review, we quantitatively assess the data available in the literature on cellulase production yields by WRB fungi
cultivated by SSC or SmC. The review also assesses cellulolytic enzyme production rates and enzyme recovery whenWRB fungi
are cultivated on different biomass residues in SSC or SmC systems. Although some variation in cellulase production yields have
been reported for certain substrates, the analysis convincingly shows that SmC is generally more efficient than SSC for obtaining
high cellulase production yields and high cellulase production rates on the substrate used. However, the cultivation method also
affects the enzyme activity profile obtained, and the resulting enzyme titers and significant dilution of the enzymes usually occurs
in SmC. The review also highlights some future approaches, including sequential cultivations and co-cultivation of WRB fungi
for improved enzyme expression, as well as on-site approaches for production of enzyme blends for industrial biomass conversion.
The quantitative comparisons made have implications for selection of the most appropriate cultivation method for WRB
fungi for attaining maximal cellulase production.|
|Description: ||An article published by Springer-Verlag GmbH Germany and also available at https://doi.org/10.1007/s00253-018-9072-8|
|Appears in Collections:||College of Science|
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