Evaluation of white-rot fungi-assisted alkaline/oxidative pretreatment of corn straw undergoing enzymatic hydrolysis by cellulase

2010 ◽  
Vol 110 (6) ◽  
pp. 660-664 ◽  
Author(s):  
Hongbo Yu ◽  
Xiaoyu Zhang ◽  
Lili Song ◽  
Jing Ke ◽  
Chunyan Xu ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
White Rot Fungi ◽  
White Rot ◽  
Corn Straw

scholarly journals Biological pretreatment of wheat straw: Effect of fungal culturing on enzymatic hydrolysis of carbohydrate polymers

2021 ◽  
Author(s):  
Aleksandar Knežević ◽  
Ivana Đokić ◽  
Tomislav Tosti ◽  
Slađana Popović ◽  
Dušanka Milojković-Opsenica ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Wheat Straw ◽  
Lignin Degradation ◽  
Enzymatic Saccharification ◽  
White Rot Fungi ◽  
Fungal Species ◽  
White Rot ◽  
Irpex Lacteus ◽  
Fungal Pretreatment ◽  
Hydrolysis Of

Abstract The aim of the study was comparative analysis of degradation of wheat straw lignin by white-rot fungi and its implications on the efficiency of enzymatic hydrolysis of holocellulose. Cyclocybe cylindracea, Ganoderma resinaceum, Irpex lacteus, Pleurotus ostreatus and Trametes versicolor were the species studied. Peroxidases were predominantly responsible for lignin degradation even though high laccase activities were detected, except in the case of Irpex lacteus where laccase activity was not detected. Studied fungal species showed various ability to degrade lignin in wheat straw which further affected release of reducing sugars during enzymatic saccharification. The highest rate of lignin degradation was noticed in sample pretreated with Irpex lacteus (50.9 ± 4.1%). Among all tested species only Ganoderma resinaceum was suitable lignin degrader with the 2-fold higher hydrolysis yield (51.1 ± 4.7%) than in the control, and could have significant biotechnological application due to lower cellulose loss. A key mechanism of carbohydrate component convertibility enhancement was lignin removal in the biomass. Long time consumption, the low sugar yields and unpredictable fungal response still remain the challenge of the fungal pretreatment process.

scholarly journals Evaluation of Biological Pretreatment of Rubberwood with White Rot Fungi for Enzymatic Hydrolysis

Materials ◽  
2013 ◽  
Vol 6 (5) ◽  
pp. 2059-2073 ◽  
Author(s):  
Forough Nazarpour ◽  
Dzulkefly Abdullah ◽  
Norhafizah Abdullah ◽  
Reza Zamiri
Keyword(s):  
Enzymatic Hydrolysis ◽  
White Rot Fungi ◽  
White Rot ◽  
Biological Pretreatment

scholarly journals Biological pretreatment of lignocelluloses with white-rot fungi and its applications: A review

BioResources ◽  
2011 ◽  
Vol 6 (4) ◽  
pp. 5224-5259
Author(s):  
Isroi ◽  
Ria Millati ◽  
Siti Syamsiah ◽  
Claes Niklasson ◽  
Muhammad Nur Cahyanto ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Manganese Peroxidase ◽  
Animal Feed ◽  
White Rot Fungi ◽  
Ligninolytic Enzymes ◽  
White Rot ◽  
Chemical Pretreatment ◽  
Biological Pretreatment ◽  
Factors Affecting ◽  
Ruminant Feed

Lignocellulosic carbohydrates, i.e. cellulose and hemicellulose, have abundant potential as feedstock for production of biofuels and chemicals. However, these carbohydrates are generally infiltrated by lignin. Breakdown of the lignin barrier will alter lignocelluloses structures and make the carbohydrates accessible for more efficient bioconversion. White-rot fungi produce ligninolytic enzymes (lignin peroxidase, manganese peroxidase, and laccase) and efficiently mineralise lignin into CO2 and H2O. Biological pretreatment of lignocelluloses using white-rot fungi has been used for decades for ruminant feed, enzymatic hydrolysis, and biopulping. Application of white-rot fungi capabilities can offer environmentally friendly processes for utilising lignocelluloses over physical or chemical pretreatment. This paper reviews white-rot fungi, ligninolytic enzymes, the effect of biological pretreatment on biomass characteristics, and factors affecting biological pretreatment. Application of biological pretreatment for enzymatic hydrolysis, biofuels (bioethanol, biogas and pyrolysis), biopulping, biobleaching, animal feed, and enzymes production are also discussed.

scholarly journals Production of xylooligosaccharides from enzymatic hydrolysis of xylan by the white-rot fungi Pleurotus

2009 ◽  
Vol 63 (6) ◽  
pp. 673-678 ◽  
Author(s):  
Cristiano Ragagnin de Menezes ◽  
Ísis Serrano Silva ◽  
Érika Cristina Pavarina ◽  
Elisângela Franciscon Guímaro Dias ◽  
Fábio Guímaro Dias ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
White Rot Fungi ◽  
White Rot ◽  
Hydrolysis Of

scholarly journals Production of xylooligosaccharides from enzymatic hydrolysis of xylan by white-rot fungi Pleurotus

2010 ◽  
Vol 32 (1) ◽  
Author(s):  
Cristiano Ragagnin de Menezes ◽  
Ísis Serrano Silva ◽  
Érika Cristina Pavarina ◽  
Andréia Fonseca de Faria ◽  
Elisângela Franciscon ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
White Rot Fungi ◽  
White Rot ◽  
Hydrolysis Of

scholarly journals Feeding Fungal-Pretreated Corn Straw Improves Health and Meat Quality of Lambs Infected with Gastrointestinal Nematodes

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1659
Author(s):  
Hai Xiang ◽  
Xueli Zhao ◽  
Yi Fang ◽  
Fei Wang ◽  
Rong Liang ◽  
...  
Keyword(s):  
Meat Quality ◽  
White Rot Fungi ◽  
Gastrointestinal Nematodes ◽  
White Rot ◽  
Meat Color ◽  
Corn Straw ◽  
Fiber Digestion ◽  
A Value ◽  
Dietary Treatments

Infections with gastrointestinal nematodes (GIN) adversely affect meat color in lambs. Although white-rot fungi (WRF) pretreatment increases nutritional value and fiber digestion of corn straw for lambs, whether it can improve meat quality of lambs infected with GINs is unknown. The objective of this experiment was to study effects of feeding WRF-pretreated corn straw on the health and meat quality of lambs infected with GINs. Sixteen healthy Ujumqin lambs were orally drenched with 3rd-stage GINs larvae and randomly divided into two dietary treatments of control (CON) and WRF diets for 70 days of feeding. Results showed that feeding WRF-pretreated corn straw decreased L* and b* values (p < 0.05) and increased a* value (p < 0.01) of both longissimus thoracis et lumborum (LTL) and semimembranosus (SM) muscles of lambs infected with GINs. Feeding WRF-pretreatment corn straw decreased fecal egg count (p = 0.014) and increased packed cell volume (p = 0.013) of lambs from 28 d of feeding and increased plasma iron content (p = 0.008) of lambs from 56 d of the feeding. Feeding WRF-pretreatment corn straw decreased myosin heavy-chain (MyHC)-I (p = 0.032) and MyHC-IIα (p = 0.025) content in LTL muscle and MyHC-I (p = 0.022) and MyHC-IIβ (p = 0.048) in SM muscle of lambs. In conclusion, although there were no significant changes in the content of most amino acids or increased intensity of better flavor compounds, meat quality and health of lambs infected with GINs was significantly improved by feeding WRF-pretreated corn straw due to increased PCV and meat color and tenderness.

Sign in / Sign up

Export Citation Format

Share Document