Influence of nutritional supplementation on solid-substrate fermentation of wheat straw with an alkaliphilic white-rot fungus (Coprinus sp.)

1987 ◽  
Vol 26 (5) ◽  
Author(s):  
J.S. Yadav
Keyword(s):  
Wheat Straw ◽  
Solid Substrate ◽  
Nutritional Supplementation ◽  
White Rot ◽  
White Rot Fungus ◽  
Solid Substrate Fermentation

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%.

Solid substrate fermentation of wheat straw to fungal protein

1984 ◽  
Vol 26 (12) ◽  
pp. 1465-1474 ◽  
Author(s):  
J. J. Laukevics ◽  
A. F. Apsite ◽  
U. E. Viesturs ◽  
R. P. Tengerdy
Keyword(s):  
Wheat Straw ◽  
Solid Substrate ◽  
Solid Substrate Fermentation ◽  
Fungal Protein

Effects of fungal treated wheat straw on Feed intake and growth of fattening lambs

2002 ◽  
Vol 2002 ◽  
pp. 152-152
Author(s):  
A.R. Foroughi ◽  
A. Nikkhah
Keyword(s):  
Wheat Straw ◽  
Feed Intake ◽  
Nutritive Value ◽  
Wide Spectrum ◽  
White Rot Fungi ◽  
Solid Substrate ◽  
White Rot ◽  
Oxidative Enzymes ◽  
Edible Fungi ◽  
Livestock Feed

White- rot fungi have been investigated for biological upgradation of cereal straws into livestock Feed by solid substrate fermentation (Tripathi et al. 1991). Studies showed that pleurotus sajor- cajo(PSC) grew well on wheat straw and improved nutritive value (Leng 1990), due to the presence of wide spectrum of extracellular hydrolytic and oxidative enzymes and high infiltration of the mycelium into the substrate (Kokhreidze et al,1993).The objective of this study was to examine the effect of treated wheat straw by PSC edible fungi on feed intake and daily gain of fattening male lambs.

Induction of laccase activity in the white rot fungus Pleurotus ostreatus using water polluted with wheat straw extracts

2013 ◽  
Vol 133 ◽  
pp. 142-149 ◽  
Author(s):  
Alejandra Parenti ◽  
Elaia Muguerza ◽  
Amaia Redin Iroz ◽  
Alejandra Omarini ◽  
Enma Conde ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Pleurotus Ostreatus ◽  
Laccase Activity ◽  
White Rot ◽  
White Rot Fungus

scholarly journals Enhancing of the utilization of palm leaf hay using Bacillus subtilis and Phanerochaete chrysosporium in the diet of lambs under desert conditions

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Hatem A. Hamdon ◽  
Ahmed E. Kholif ◽  
Gamal B. Mahmoud ◽  
Ali M.A. Khalifa ◽  
Mohamed N.M. Abdel Ati
Keyword(s):  
Bacillus Subtilis ◽  
Growth Performance ◽  
Wheat Straw ◽  
Phanerochaete Chrysosporium ◽  
Carcass Characteristics ◽  
Nutrient Digestibility ◽  
White Rot ◽  
White Rot Fungus ◽  
Blood Metabolites ◽  
Palm Leaf

AbstractThe efficiency of the bacterium Bacillus subtilis and white-rot fungus Phanerochaete chrysosporium on growth performance, blood metabolites, carcass characteristics, meat composition and nutrient digestibility of lambs fed crushed whole palm leaf hay was investigated for 105 d. In Experiment 1 (Growth experiment), twenty-four lambs (29.5 ± 1.25 kg) were divided into four feed-based treatments: (1) concentrate and wheat straw ad libitum (control), (2) palm leaf hay (DPL), (3) palm leaf hay supplemented with 2 g of B. subtilis and P. chrysosporium (DPL2) or (4) palm leaf hay supplemented with 4 g of B. subtilis and P. chrysosporium (DPL4). In Experiment 2 (Digestibility experiment), twelve rams, three from each treatment, were used to study nutrient digestibility using the faecal bag technique. Results of the Experiment 1 showed that the DPL4 showed greater (P=0.049) live-weight gain than the control. The diets containing palm leaf hay showed lower (P=0.001) roughage and total feed intake and higher (P=0.001) feed efficiency than the control. Increased serum total protein, globulin, urea-N, aspartate aminotransferase and alanine aminotransferase (ALT) levels were observed with the DPL4 (P˂0.05). Additionally, diets containing palm leaf hay showed higher ALT levels than the control. The DPL4 increased the hot carcass weight (P=0.006) and dressing percentage (P=0.036), and the diets supplemented with B. subtilis and P. chrysosporium decreased (P˂0.05) the tail fat and all fat levels compared with the DPL treatment. Results of the Experiment 2 showed that nutrient digestibility was lower (P˂0.05) with the DPL and DPL2 than with the control and DPL4. Compared with the control, nutrient digestibility of DPL4 was not affected. It is concluded that replacement of wheat straw with palm leaf hay did not affect the feed utilization or animal performance of the lambs; however, supplementation with B. subtilis and P. chrysosporium at 4 g/lamb daily enhanced the growth performance, nutrient digestibility, and carcass characteristics without any adverse effects on blood metabolites.

scholarly journals Integrative visual omics of the white-rot fungus Polyporus brumalis exposes the biotechnological potential of its oxidative enzymes for delignifying raw plant biomass

2018 ◽  
Author(s):  
Shingo Miyauchi ◽  
Anaïs Rancon ◽  
Elodie Drula ◽  
Delphine Chaduli ◽  
Anne Favel ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Lignin Degradation ◽  
Plant Biomass ◽  
White Rot ◽  
Fungal Genome ◽  
Oxidative Enzymes ◽  
White Rot Fungus ◽  
Large Set ◽  
Combining Data ◽  
Polyporus Brumalis

AbstractWhite-rot fungi are wood decayers able to degrade all polymers from lignocellulosic biomass including cellulose, hemicelluloses, and lignin. The white-rot fungus Polyporus brumalis efficiently breaks down lignin and is regarded as having a high potential for the initial treatment of plant biomass in its conversion to bio-energy. We performed integrative multi-omics analyses by combining data from the fungal genome, transcriptomes, and secretomes. We found the fungus possessed an unexpectedly large set of genes coding for enzymes related to lignin degradation, and that these were highly expressed and massively secreted under solid-state fermentation conditions. The examination of interrelated multi-omics patterns revealed the coordinated regulation of lignin-active peroxidases and H2O2-generating enzymes along with the activation of cellular mechanisms for detoxification, which combined to result in the efficient lignin breakdown by the fungus.ImportancePlant biomass conversion for green chemistry and bio-energy is a current challenge for a modern sustainable bioeconomy. The complex polyaromatic lignin polymers in raw biomass feedstocks (i.e. agriculture and forestry by-products) are major obstacles for biomass conversions. From a biotechnological aspect, these compounds could be a potential source of aromatic platform molecules for bio-based polymers. Here we describe the extraordinary ability of Polyporus brumalis for lignin degradation using its enzymatic arsenal to break down wheat straw, a lignocellulosic substrate that is considered as a biomass feedstock worldwide. We observed unusual expansions of gene families coding for; 1) Class II peroxidases involved in lignin degradation; and 2) GMC oxidoreductases/dehydrogenases involved in generating the hydrogen peroxide required for lignin peroxidase activity. Our findings suggested the fungus massively mobilizes this oxidative machinery during growth on wheat straw. Overall, we identified sets of co-regulated enzymes, which could potentially augment the efficiency of biotechnological plant biomass conversions.

scholarly journals Selective ligninolysis of wheat straw and wood chips by the white-rot fungus Lentinula edodes and its influence on in vitro rumen degradability

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Sandra J. A. van Kuijk ◽  
José C. del Río ◽  
Jorge Rencoret ◽  
Ana Gutiérrez ◽  
Anton S. M. Sonnenberg ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Lentinula Edodes ◽  
Wood Chips ◽  
White Rot ◽  
White Rot Fungus
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