scholarly journals Fibre degradation of wheat straw by Pleurotus erygnii under low moisture conditions during solid-state fermentation

2019 ◽  
Vol 68 (2) ◽  
pp. 182-187 ◽  
Author(s):  
P.W. Baker ◽  
A. Charlton ◽  
M.D.C. Hale
Keyword(s):  
Solid State ◽  
Wheat Straw ◽  
Solid State Fermentation ◽  
Fibre Degradation ◽  
Moisture Conditions

scholarly journals Trametes suaveolens as ligninolytic enzyme producer

2013 ◽  
pp. 437-444 ◽  
Author(s):  
Aleksandar Knezevic ◽  
Ivan Milovanovic ◽  
Mirjana Stajic ◽  
Jelena Vukojevic
Keyword(s):  
Enzyme Activity ◽  
Solid State ◽  
Wheat Straw ◽  
Solid State Fermentation ◽  
Nitrogen Concentration ◽  
Pollution Prevention ◽  
Ligninolytic Enzyme ◽  
Species Selection ◽  
Submerged Cultivation ◽  
Phenol Red

Species of the genus Trametes represent one of the most efficient lignin-degraders which can be attributed to a well developed ligninolytic enzyme system. Current trends are screening of ability of new species to produce these enzymes, as well as the optimization of conditions for their overproduction. Therefore, the aim of the study was to evaluate the potential of T. suaveolens to synthesize laccase and Mn-oxidizing peroxidases during fermentation of the selected plant raw materials. Level of enzyme activities was measured on 7, 10 and 14th day of submersion, as well as the solid-state fermentation of wheat straw and oak sawdust in the presence of NH4NO3 in previously determined optimal nitrogen concentration of 25 mM. The enzyme activity was determined spectrophotometrically using ABTS and phenol red as the substrates. The highest level of laccase activity (1087.1 U/L) was noted after 7 days of wheat straw solid-state fermentation, while during the submerged cultivation the production of the enzyme was not noted. Submerged cultivation in oak sawdust-enriched medium was the optimal for activity of Mn-dependent peroxidase (1767.7 U/L on day 14) and Mn-independent peroxidase (1113.7 U/L on day 7). Introduction of T. suaveolens to produce ligninolytic enzyme represented the base for further study, as well as the determination of relation between enzyme activity and rate of lignin degradation. It could lead to greater possibility of fungal species selection with high delignification capacity, which could take participation in sustainable production of food, feed, fibres, and energy, environmentally friendly pollution prevention, and bioremediation.

Solid state fermentation of wheat straw for paper production

1997 ◽  
pp. 529-542
Author(s):  
G. Giovannozzi-Sermanni ◽  
A. D’Annibale ◽  
C. Crestini
Keyword(s):  
Solid State ◽  
Wheat Straw ◽  
Solid State Fermentation ◽  
Paper Production

High-level of xylanase production by the thermophilic Paecilomyces themophila J18 on wheat straw in solid-state fermentation

2006 ◽  
Vol 97 (15) ◽  
pp. 1794-1800 ◽  
Author(s):  
S.Q. Yang ◽  
Q.J. Yan ◽  
Z.Q. Jiang ◽  
L.T. Li ◽  
H.M. Tian ◽  
...  
Keyword(s):  
Solid State ◽  
Wheat Straw ◽  
Solid State Fermentation ◽  
Xylanase Production ◽  
High Level

Performance of an intermittent agitation rotating drum type bioreactor for solid-state fermentation of wheat straw

2003 ◽  
Vol 86 (3) ◽  
pp. 207-213 ◽  
Author(s):  
E Kalogeris ◽  
F Iniotaki ◽  
E Topakas ◽  
P Christakopoulos ◽  
D Kekos ◽  
...  
Keyword(s):  
Solid State ◽  
Wheat Straw ◽  
Solid State Fermentation ◽  
Rotating Drum

scholarly journals Studies on pyrolysis of wheat straw residues from ethanol production by solid-state fermentation

2008 ◽  
Vol 81 (2) ◽  
pp. 243-246 ◽  
Author(s):  
Zhiguang Yang ◽  
Baoguo Zhang ◽  
Xi Chen ◽  
Zhihui Bai ◽  
Hongxun Zhang
Keyword(s):  
Solid State ◽  
Ethanol Production ◽  
Wheat Straw ◽  
Solid State Fermentation

scholarly journals Amylase Production from Solid State Fermentation and Submerged Liquid Fermentation by Aspergillus niger

2012 ◽  
Vol 47 (1) ◽  
pp. 99-104 ◽  
Author(s):  
G Dharani ◽  
NS Kumaran
Keyword(s):  
Solid State ◽  
Aspergillus Niger ◽  
Solid State Fermentation ◽  
Specific Activity ◽  
Basal Medium ◽  
Banana Peel ◽  
Liquid Fermentation ◽  
Cultural Conditions ◽  
Solid Substrates ◽  
Moisture Conditions

The purpose of this work is to study the optimized cultural conditions for the production of amylase by Aspergillus niger in solid state and submerged liquid fermentation. Four solid substrates banana peel, corn, potato and tapioca with different moisture conditions were taken for solid state fermentation (SSF). Basal medium was used for submerged liquid fermentation (SLF) with different pH (3 to 8), temperature (25, 30, 35 and 40ºC), carbon concentration (1, 2 and 3 g) and nitrogen source (0.1, 0.2 and 0.3 g). In SSF, tapioca yielded highest amylase activity and specific activity (4.43U/ml and 4.58U/mg) at 50% moisture content. In SLF, 2 g starch and 0.3 g peptone concentration showed 0.78 and 1.23 U/ml amylase activities under the optimum pH (5) and temperature (30ºC) the amylase activities reached to 0.86 U/ml and 0.76 U/ml respectively. In SSF using tapioca as substrate the enzyme yield is about five times higher than that achieved with submerged liquid culture. DOI: http://dx.doi.org/10.3329/bjsir.v47i1.7310 Bangladesh J. Sci. Ind. Res. 47(1), 99-104, 2012

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