Solid-state fermentation, lignin degradation and resulting digestibility of wheat straw fermented by selected white-rot fungi

1985 ◽  
Vol 21 (6) ◽  
Author(s):  
Eduardo Agosin ◽  
Etienne Odier
Keyword(s):  
Solid State ◽  
Wheat Straw ◽  
Solid State Fermentation ◽  
Lignin Degradation ◽  
White Rot Fungi ◽  
White Rot

scholarly journals Modification of wheat straw lignin by solid state fermentation with white-rot fungi

2009 ◽  
Vol 100 (20) ◽  
pp. 4829-4835 ◽  
Author(s):  
Maria J. Dinis ◽  
Rui M.F. Bezerra ◽  
Fernando Nunes ◽  
Albino A. Dias ◽  
Cristina V. Guedes ◽  
...  
Keyword(s):  
Solid State ◽  
Wheat Straw ◽  
Solid State Fermentation ◽  
White Rot Fungi ◽  
White Rot

scholarly journals OPTIMISASI PRODUKSI ENZIM LAKASE PADA FERMENTASI KULTUR PADAT MENGGUNAKAN JAMUR PELAPUK PUTIH Marasmius sp. : PENGARUH UKURAN PARTIKEL, KELEMBAPAN, DAN KONSENTRASI Cu

2016 ◽  
Vol 3 (02) ◽  
Author(s):  
Cornelius Damar Hanung ◽  
Ronald Osmond ◽  
Hendro Risdianto ◽  
Sri Harjati Suhardi ◽  
Tjandra Setiadi
Keyword(s):  
Particle Size ◽  
Solid State ◽  
Moisture Content ◽  
Rice Straw ◽  
Solid State Fermentation ◽  
Carbon Sources ◽  
White Rot Fungi ◽  
Batch Process ◽  
Solid Substrate ◽  
White Rot

White rot fungi of Marasmius sp. is a fungus which produce laccase in high activity. Laccase is one of the ligninolityc enzymes that capable to degrade lignin. This ability can be used for the pretreatment of lignocellulosic materials in the bioethanol production. Laccase was produced in flask by batch process using Solid State Fermentation (SSF). The optimisation was conducted by statistically of full factorial design. The particle size, moisture content, and Cu concentration were investigated in this study. Rice straw was used as solid substrate and the glycerol was used as the carbon sources in modified Kirk medium. The results showed that particle size of rice straw did not affect significantly to the enzyme activity. The highest laccase activity of 4.45 IU/g dry weight was obtained at the moisture content of 61% and Cu concentration of 0.1 mM.Keywords: laccase, Marasmius sp., optimisation, rice straw, solid state fermentation ABSTRAKJamur pelapuk putih, Marasmius sp. merupakan jamur yang menghasilkan enzim lakase dengan aktivitas tinggi. Lakase merupakan enzim ligninolitik yang dapat mendegradasi lignin. Kemampuan ini dapat digunakan untuk proses pengolahan awal bahan lignoselulosa pada pembuatan bioetanol. Produksi lakase dilakukan dalam labu dengan modus batch menggunakan fermentasi kultur padat. Optimisasi produksi enzim lakase dengan metode fermentasi padat dilakukan dengan  rancangan percobaan faktorial penuh. Pengaruh ukuran partikel, kelembapan, dan konsentrasi Cu diuji dengan medium penyangga jerami dengan menambahkan gliserol dalam medium Kirk termodifikasi sebagai sumber karbon. Penelitian ini menunjukkan bahwa ukuran jerami tidak berpengaruh signifikan terhadap aktivitas enzim. Aktivitas enzim lakase maksimum terjadi pada saat kelembapan 61% dan konsentrasi Cu 0,1 mM dengan aktivitas enzim lakase/berat kering tertinggi mencapai 4,45 IU/g.Kata kunci: lakase, Marasmius sp., optimisasi, jerami, fermentasi kultur padat

scholarly journals White rot fungi pretreatment to advance volatile fatty acid production from solid-state fermentation of solid digestate: Efficiency and mechanisms

Energy ◽  
2018 ◽  
Vol 162 ◽  
pp. 534-541 ◽  
Author(s):  
Wei Fang ◽  
Panyue Zhang ◽  
Xuedong Zhang ◽  
Xuefeng Zhu ◽  
Jules B. van Lier ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Solid State ◽  
Solid State Fermentation ◽  
Acid Production ◽  
Volatile Fatty Acid ◽  
White Rot Fungi ◽  
White Rot ◽  
Fatty Acid Production

Lignocellulolytic activity of Pleurotus ostreatus under solid state fermentation using silage, stover, and cobs of maize

BioResources ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. 3797-3807
Author(s):  
Magdah Ganash ◽  
Tarek M. Abdel Ghany ◽  
Mohamed A. Al Abboud ◽  
Mohamed M. Alawlaqi ◽  
Husam Qanash ◽  
...  
Keyword(s):  
Solid State ◽  
Incubation Period ◽  
Solid State Fermentation ◽  
Pleurotus Ostreatus ◽  
White Rot Fungi ◽  
Value Added ◽  
Extracellular Protein ◽  
White Rot ◽  
White Rot Fungus ◽  
Lignocellulosic Substrate

Lignocellulolytic white-rot fungi allow the bioconversion of agricultural wastes into value-added products that are used in a myriad of applications. The aim of this work was to use corn residues (Zea mays L.) to produce valuable products under solid-state fermentation (SSF) with Pleurotus ostreatus. White-rot fungus P. ostreatus was isolated from maize silage (MS) and thereafter it was inoculated on MS as substrate and compared with maize stover (MSt) and maize cobs (MC) to determine the best lignocellulosic substrate for the production of lignocellulolytic enzymes and extracellular protein. The MS gave the highest productivity of CMCase (368.2 U/mL), FPase (170.5 U/mL), laccase (11.4 U/mL), and MnPase (6.6 U/mL). This is compared to productivity on MSt of 222 U/mL, 50.2 U/mL, 4.55 U/mL, and 2.57 U/mL, respectively; and productivity on MC at the same incubation period as 150.5 U/mL, 48.2 U/mL, 3.58 U/mL, and 2.5 U/mL, respectively. The levels of enzyme production declined with increasing incubation period after 15 and 20 days using MS and MC, respectively, as substrates. Maximum liberated extracellular protein content (754 to 878 µg/mL) was recorded using MS, while a low amount (343 to 408 µg/mL) was liberated with using MSt and MC.

The influence of urea and white rot fungi on the nutritional value of wheat straw

2000 ◽  
Vol 2000 ◽  
pp. 59-59
Author(s):  
Y Rouzbehan ◽  
H. Fazaeli ◽  
A. Kiani
Keyword(s):  
Chemical Composition ◽  
Solid State ◽  
Wheat Straw ◽  
Nutritional Value ◽  
Animal Feed ◽  
White Rot Fungi ◽  
White Rot ◽  
Complex Process ◽  
Biological Methods ◽  
Low Nitrogen

In Iran, wheat straw which is produced in huge amounts has been used in animal feed. However, the use of straw as animal feed is limited by its low nutritional value and its low nitrogen content. Various chemical delignification methods to improve the digestibility of straw have extensively investigated (Sundstol and Owen, 1984). Biological methods of treating straw using fungi such as white-rot-fungi have also been reported (Zadrazil, 1984). The solid state fermentation (SSF) of wheat straw with white-rot fungi is a complex process which is influenced by factors such as the species of fungus, substrate, temperature and moisture (Zadrazil, 1984). The objective of this study was to investigate the effect of pre-treating the straw with urea and incubation with two species of Pleurotus fungi on the chemical composition and digestibility of wheat straw.

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