The effect of white-rot basidiomycetes on chemical composition andin Vitro digestibility of wheat straw

1996 ◽  
Vol 41 (1) ◽  
pp. 73-75 ◽  
Author(s):  
D. Jalč ◽  
F. Nerud ◽  
R. Žitňan ◽  
P. Siroka
Keyword(s):  
Chemical Composition ◽  
Wheat Straw ◽  
White Rot

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.

Treatment using white rot fungi changed the chemical composition of wheat straw and enhanced digestion by rumen microbiota in vitro

2018 ◽  
Vol 237 ◽  
pp. 46-54 ◽  
Author(s):  
Dongze Niu ◽  
Sasa Zuo ◽  
Di Jiang ◽  
Pengjiao Tian ◽  
Mingli Zheng ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Wheat Straw ◽  
White Rot Fungi ◽  
White Rot ◽  
Rumen Microbiota

Effect of fungal treatment on the chemical composition, in vitro digestibility and in sacco degradability of wheat straw

2003 ◽  
Vol 2003 ◽  
pp. 166-166
Author(s):  
H. Fazaeli ◽  
A. Azizi ◽  
Z. A. M. Jelan ◽  
S. A. Mirhadi
Keyword(s):  
Chemical Composition ◽  
Wheat Straw ◽  
Nutritive Value ◽  
White Rot Fungi ◽  
White Rot ◽  
In Vitro Digestibility ◽  
Fungal Treatment ◽  
In Sacco Degradability ◽  
In Sacco

Fungal treatment has been recently considered as a promising method for improving the nutritive value of straw (Zadrazil et al., 1997). Several studies have been conducted to identify species of white-rot fungi for assessing their ability to improve the nutritive value of straw (Yamakamwa et al., 1992). Since there are many species of fungi in nature, there is an interest in characterising of some species. The objectives of this experiment were to study the effect of five Pleurotus fungi on the chemical composition, in vitro digestibility and in sacco degradability of wheat straw and evaluate their effect in upgrading the nutritive value of lignicellulosic materials.

Effect of enzyme extracts isolated from white-rot fungi on chemical composition and in vitro digestibility of wheat straw

2008 ◽  
Vol 141 (3-4) ◽  
pp. 326-338 ◽  
Author(s):  
M.A.M. Rodrigues ◽  
P. Pinto ◽  
R.M.F. Bezerra ◽  
A.A. Dias ◽  
C.V.M. Guedes ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Wheat Straw ◽  
White Rot Fungi ◽  
White Rot ◽  
In Vitro Digestibility

Evaluation of effects of freezing pretreatment on the grindability, energy consumption and chemical composition of wheat straw

2020 ◽  
Vol 151 ◽  
pp. 21-29 ◽  
Author(s):  
Zhaolin Lu ◽  
Tao Xie ◽  
Hao Chen ◽  
Leida Li ◽  
Shiyin Li ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Chemical Composition ◽  
Wheat Straw

scholarly journals Alkali treatment of fungal pretreated wheat straw for bioethanol production

Bioethanol ◽  
2016 ◽  
Vol 2 (1) ◽  
Author(s):  
María García-Torreiro ◽  
Miguel Álvarez Pallín ◽  
María López-Abelairas ◽  
Thelmo A. Lu-Chau ◽  
Juan M. Lema
Keyword(s):  
Wheat Straw ◽  
Alkali Treatment ◽  
Alkaline Treatment ◽  
White Rot ◽  
White Rot Fungus ◽  
Process Conditions ◽  
Alkali Pretreatment ◽  
Irpex Lacteus ◽  
C 30 ◽  
Pretreated Wheat Straw

AbstractBioconversion of lignocellulosic materials into ethanol requires an intermediate pretreatment step for conditioning biomass. Sugar yields from wheat straw were previously improved by the addition of a mild alkali pretreatment step before bioconversion by the white-rot fungus Irpex lacteus. In this work, an alternative alkaline treatment, which significantly reduces water consumption, was implemented and optimized. Sugar recovery increased 117% with respect to the previously developed alkaline wash process at optimal process conditions (30°C, 30 minutes and 35.7% (w/w) of NaOH). In order to further reduce operational costs, a system for alkali recycling was implemented. This resulted in the treatment of 150% more wheat straw using the same amount of NaOH. Finally, enzymatic hydrolysis was optimized and resulted in a reduction of enzyme dose of 33%.

scholarly journals A comprehensive study of the promoting effect of manganese on white rot fungal treatment for enzymatic hydrolysis of woody and grass lignocellulose

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Xiao Fu ◽  
Jialong Zhang ◽  
Xiangyu Gu ◽  
Hongbo Yu ◽  
Shulin Chen
Keyword(s):  
Wheat Straw ◽  
Lignocellulosic Biomass ◽  
Quantum Coherence ◽  
Plant Cell Wall ◽  
White Rot ◽  
Yield Enhancement ◽  
Biomass Recalcitrance ◽  
Fungal Treatment ◽  
Ether Linkage ◽  
Glucose Yield

Abstract Background The efficiency of biological systems as an option for pretreating lignocellulosic biomass has to be improved to make the process practical. Fungal treatment with manganese (Mn) addition for improving lignocellulosic biomass fractionation and enzyme accessibility were investigated in this study. The broad-spectrum effect was tested on two different types of feedstocks with three fungal species. Since the physicochemical and structural properties of biomass were the main changes caused by fungal degradation, detailed characterization of biomass structural features was conducted to understand the mechanism of Mn-enhanced biomass saccharification. Results The glucose yields of fungal-treated poplar and wheat straw increased by 2.97- and 5.71-fold, respectively, after Mn addition. Particularly, over 90% of glucose yield was achieved in Mn-assisted Pleurotus ostreatus-treated wheat straw. A comparison study using pyrolysis gas chromatography mass spectrometry (Py-GC/MS) and two-dimensional 1H–13C heteronuclear single quantum coherence (2D HSQC) nuclear magnetic resonance (NMR) spectroscopy was conducted to elucidate the role of Mn addition on fungal disruption of the cross-linked structure of whole plant cell wall. The increased Cα-oxidized products was consistent with the enhanced cleavage of the major β-O-4 ether linkages in poplar and wheat straw lignin or in the wheat straw lignin–carbohydrate complexes (LCCs), which led to the reduced condensation degree in lignin and decreased lignin content in Mn-assisted fungal-treated biomass. The correlation analysis and principal component analysis (PCA) further demonstrated that Mn addition to fungal treatment enhanced bond cleavage in lignin, especially the β-O-4 ether linkage cleavage played the dominant role in removing the biomass recalcitrance and contributing to the glucose yield enhancement. Meanwhile, enhanced deconstruction of LCCs was important in reducing wheat straw recalcitrance. The findings provided not only mechanistic insights into the Mn-enhanced biomass digestibility by fungus, but also a strategy for improving biological pretreatment efficiency of lignocellulose. Conclusion The mechanism of enhanced saccharification of biomass by Mn-assisted fungal treatment mainly through Cα-oxidative cleavage of β-O-4 ether linkages further led to the decreased condensation degree in lignin, as a result, biomass recalcitrance was significantly reduced by Mn addition. Graphic abstract

scholarly journals Study of Chemical Composition, Quality and Ruminal Degradability Parameters of Silaged Orange Pulp with Wheat Straw and Urea

2017 ◽  
Vol 8 (15) ◽  
pp. 84-95 ◽  
Author(s):  
Anahita Teimoury Chamebon ◽  
Asadollah Teimori Yanesari ◽  
Yadollah Chashnidel ◽  
Alireza Gafary Sayadi
Keyword(s):  
Chemical Composition ◽  
Wheat Straw ◽  
Orange Pulp ◽  
Ruminal Degradability

scholarly journals Effect of Microwave Treatment on Chemical Composition and In sacco Digestibility of Wheat Straw in Yak Cow

2005 ◽  
Vol 18 (1) ◽  
pp. 27-31 ◽  
Author(s):  
Shikui Dong ◽  
Ruijun Long ◽  
Degang Zhang ◽  
Zizhi Hu ◽  
Xiaopeng Pu
Keyword(s):  
Chemical Composition ◽  
Wheat Straw ◽  
Microwave Treatment ◽  
In Sacco
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