The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Jie Bao - One of the best experts on this subject based on the ideXlab platform.
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biodetoxification of toxins generated from Lignocellulose pretreatment using a newly isolated fungus amorphotheca resinae zn1 and the consequent ethanol fermentation
Biotechnology for Biofuels, 2010Co-Authors: Jian Zhang, Zhinan Zhu, Xiaofeng Wang, Nan Wang, Wei Wang, Jie BaoAbstract:Background: Degradation of the toxic compounds generated in the harsh pretreatment of Lignocellulose is an inevitable step in reducing the toxin level for conducting practical enzymatic hydrolysis and ethanol fermentation processes. Various detoxification methods have been tried and many negative outcomes were found using these methods, such as the massive freshwater usage and wastewater generation, loss of the fine Lignocellulose particles and fermentative sugars and incomplete removal of inhibitors. An alternate method, biodetoxification, which degrades the toxins as part of their normal metabolism, was considered a promising option for the removal of toxins without causing the above problems. Results: A kerosene fungus strain, Amorphotheca resinae ZN1, was isolated from the microbial community growing on the pretreated corn stover material. The degradation of the toxins as well as the Lignocelluloses-derived sugars was characterized in different ways, and the results show that A. resinae ZN1 utilized each of these toxins and sugars as the sole carbon sources efficiently and grew quickly on the toxins. It was found that the solid-state culture of A. resinae ZN1 on various pretreated Lignocellulose feedstocks such as corn stover, wheat straw, rice straw, cotton stalk and rape straw degraded all kinds of toxins quickly and efficiently. The consequent simultaneous saccharification and ethanol fermentation was performed at the 30% (wt/wt) solid loading of the detoxified lignocellulosic feedstocks without a sterilization step, and the ethanol titer in the fermentation broth reached above 40 g/L using food crop residues as feedstocks. Conclusions: The advantages of the present biodetoxification by A. resinae ZN1 over the known detoxification methods include zero energy input, zero wastewater generation, complete toxin degradation, processing on solid pretreated material, no need for sterilization and a wide Lignocellulose feedstock spectrum. These advantages make it possible for industrial applications with fast and efficient biodetoxification to remove toxins generated during intensive Lignocellulose pretreatment.
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biodetoxification of toxins generated from Lignocellulose pretreatment using a newly isolated fungus amorphotheca resinae zn1 and the consequent ethanol fermentation
Biotechnology for Biofuels, 2010Co-Authors: Jian Zhang, Zhinan Zhu, Xiaofeng Wang, Nan Wang, Wei Wang, Jie BaoAbstract:Degradation of the toxic compounds generated in the harsh pretreatment of Lignocellulose is an inevitable step in reducing the toxin level for conducting practical enzymatic hydrolysis and ethanol fermentation processes. Various detoxification methods have been tried and many negative outcomes were found using these methods, such as the massive freshwater usage and wastewater generation, loss of the fine Lignocellulose particles and fermentative sugars and incomplete removal of inhibitors. An alternate method, biodetoxification, which degrades the toxins as part of their normal metabolism, was considered a promising option for the removal of toxins without causing the above problems. A kerosene fungus strain, Amorphotheca resinae ZN1, was isolated from the microbial community growing on the pretreated corn stover material. The degradation of the toxins as well as the Lignocelluloses-derived sugars was characterized in different ways, and the results show that A. resinae ZN1 utilized each of these toxins and sugars as the sole carbon sources efficiently and grew quickly on the toxins. It was found that the solid-state culture of A. resinae ZN1 on various pretreated Lignocellulose feedstocks such as corn stover, wheat straw, rice straw, cotton stalk and rape straw degraded all kinds of toxins quickly and efficiently. The consequent simultaneous saccharification and ethanol fermentation was performed at the 30% (wt/wt) solid loading of the detoxified lignocellulosic feedstocks without a sterilization step, and the ethanol titer in the fermentation broth reached above 40 g/L using food crop residues as feedstocks. The advantages of the present biodetoxification by A. resinae ZN1 over the known detoxification methods include zero energy input, zero wastewater generation, complete toxin degradation, processing on solid pretreated material, no need for sterilization and a wide Lignocellulose feedstock spectrum. These advantages make it possible for industrial applications with fast and efficient biodetoxification to remove toxins generated during intensive Lignocellulose pretreatment.
Jian Zhang - One of the best experts on this subject based on the ideXlab platform.
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biodetoxification of toxins generated from Lignocellulose pretreatment using a newly isolated fungus amorphotheca resinae zn1 and the consequent ethanol fermentation
Biotechnology for Biofuels, 2010Co-Authors: Jian Zhang, Zhinan Zhu, Xiaofeng Wang, Nan Wang, Wei Wang, Jie BaoAbstract:Background: Degradation of the toxic compounds generated in the harsh pretreatment of Lignocellulose is an inevitable step in reducing the toxin level for conducting practical enzymatic hydrolysis and ethanol fermentation processes. Various detoxification methods have been tried and many negative outcomes were found using these methods, such as the massive freshwater usage and wastewater generation, loss of the fine Lignocellulose particles and fermentative sugars and incomplete removal of inhibitors. An alternate method, biodetoxification, which degrades the toxins as part of their normal metabolism, was considered a promising option for the removal of toxins without causing the above problems. Results: A kerosene fungus strain, Amorphotheca resinae ZN1, was isolated from the microbial community growing on the pretreated corn stover material. The degradation of the toxins as well as the Lignocelluloses-derived sugars was characterized in different ways, and the results show that A. resinae ZN1 utilized each of these toxins and sugars as the sole carbon sources efficiently and grew quickly on the toxins. It was found that the solid-state culture of A. resinae ZN1 on various pretreated Lignocellulose feedstocks such as corn stover, wheat straw, rice straw, cotton stalk and rape straw degraded all kinds of toxins quickly and efficiently. The consequent simultaneous saccharification and ethanol fermentation was performed at the 30% (wt/wt) solid loading of the detoxified lignocellulosic feedstocks without a sterilization step, and the ethanol titer in the fermentation broth reached above 40 g/L using food crop residues as feedstocks. Conclusions: The advantages of the present biodetoxification by A. resinae ZN1 over the known detoxification methods include zero energy input, zero wastewater generation, complete toxin degradation, processing on solid pretreated material, no need for sterilization and a wide Lignocellulose feedstock spectrum. These advantages make it possible for industrial applications with fast and efficient biodetoxification to remove toxins generated during intensive Lignocellulose pretreatment.
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biodetoxification of toxins generated from Lignocellulose pretreatment using a newly isolated fungus amorphotheca resinae zn1 and the consequent ethanol fermentation
Biotechnology for Biofuels, 2010Co-Authors: Jian Zhang, Zhinan Zhu, Xiaofeng Wang, Nan Wang, Wei Wang, Jie BaoAbstract:Degradation of the toxic compounds generated in the harsh pretreatment of Lignocellulose is an inevitable step in reducing the toxin level for conducting practical enzymatic hydrolysis and ethanol fermentation processes. Various detoxification methods have been tried and many negative outcomes were found using these methods, such as the massive freshwater usage and wastewater generation, loss of the fine Lignocellulose particles and fermentative sugars and incomplete removal of inhibitors. An alternate method, biodetoxification, which degrades the toxins as part of their normal metabolism, was considered a promising option for the removal of toxins without causing the above problems. A kerosene fungus strain, Amorphotheca resinae ZN1, was isolated from the microbial community growing on the pretreated corn stover material. The degradation of the toxins as well as the Lignocelluloses-derived sugars was characterized in different ways, and the results show that A. resinae ZN1 utilized each of these toxins and sugars as the sole carbon sources efficiently and grew quickly on the toxins. It was found that the solid-state culture of A. resinae ZN1 on various pretreated Lignocellulose feedstocks such as corn stover, wheat straw, rice straw, cotton stalk and rape straw degraded all kinds of toxins quickly and efficiently. The consequent simultaneous saccharification and ethanol fermentation was performed at the 30% (wt/wt) solid loading of the detoxified lignocellulosic feedstocks without a sterilization step, and the ethanol titer in the fermentation broth reached above 40 g/L using food crop residues as feedstocks. The advantages of the present biodetoxification by A. resinae ZN1 over the known detoxification methods include zero energy input, zero wastewater generation, complete toxin degradation, processing on solid pretreated material, no need for sterilization and a wide Lignocellulose feedstock spectrum. These advantages make it possible for industrial applications with fast and efficient biodetoxification to remove toxins generated during intensive Lignocellulose pretreatment.
Karl-erik Eriksson - One of the best experts on this subject based on the ideXlab platform.
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Biological delignification of plant components by the white rot fungi Ceriporiopsis subvermispora and Cyathus stercoreus
Animal Feed Science and Technology, 1996Co-Authors: Danny E. Akin, Anand Sethuraman, W.h. Morrison, Luanne L. Rigsby, Gary R. Gamble, Karl-erik ErikssonAbstract:Lignocelluloses from diverse plant types were treated with the white rot fungi Ceriporiopsis subvermispora (strains CZ-3-8497 and FP-90031-sp) and Cyathus stercoreus. Sources of Lignocellulose included: the warm-season grasses sorghum (leaf blades, sheaths, and stems), pearl millet, napiergrass, and maize (stems); the cool-season grass wheat (leaf blades, sheaths, and stems); the legumes alfalfa (stems) and lespedeza (leaflets and stems). Fungus-treated residues were compared with untreated, control samples and with plants treated with a non-delignifying isolate of Trichoderma. Residues were evaluated for improved biodegradability by ruminal microorganisms and modifications in cell wall chemistry by nuclear magnetic resonance, gas chromatography, and ultraviolet absorption microspectrophotometry. Specific plant—fungus interactions were identified that resulted in selective removal of lignin and improved biodegradability by white rot fungi but not the Trichoderma sp. All white rot fungi removed ester-linked p-coumaric and ferulic acids from grass stems, and this phenomenon appeared to account for the significant reduction in aromatic components and improved biodegradability of fungus-treated grass Lignocellulose. Cell walls in alfalfa stems were more resistant to biological delignification than those in grasses, with only C. stercoreus removing significant amounts of aromatics and improving biodegradability. All white rot fungi improved the biodegradability of tannin-rich lespedeza samples.
Lixiang Cao - One of the best experts on this subject based on the ideXlab platform.
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Characterization of cattle fecal Streptomyces strains converting cellulose and hemicelluloses into reducing sugars.
Environmental science and pollution research international, 2014Co-Authors: Yupei Liu, Zujun Deng, Hongming Tan, Qingli Deng, Lixiang CaoAbstract:To characterize Streptomyces isolated from cattle feces for converting Lignocellulose into reducing sugars, five Streptomyces strains were screened. All the strains could convert Lignocellulose into reducing sugars. The strain A16 accumulate 3.3-folds more reducing sugars on cottonseed shells treated with ethanol than without the treatment (P < 0.05). The five strains did not accumulate more reducing sugars on rice straws and wheat brans than those on cottonseed shells. Compared with A10 alone, the microbial combination of F1 + A10 accumulated 19, 61, and 25 % less reducing sugars on cottonseed shell, rice straw, and wheat bran than those by A10 solely, respectively (P < 0.05). Further studies indicated that the activities of avicelase and xylanase were not correlated with the reducing sugar amount accumulated by the test strains. Strain A7 could produce more cellular lipids with xylose and glucose as the sole carbon sources. This study shows the potential for Streptomyces strains from herbivore feces to convert Lignocelluloses into lipids and reducing sugars for fuel production.
André Ferraz - One of the best experts on this subject based on the ideXlab platform.
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Sucrose content, Lignocellulose accumulation and in vitro digestibility of sugarcane internodes depicted in relation to internode maturation stage and Saccharum genotypes
Industrial Crops and Products, 2019Co-Authors: Daniel Collucci, Raphael C.a. Bueno, Adriane M. F. Milagres, André FerrazAbstract:Abstract Sugarcane hybrids acquired several characteristics through plant breeding, including high sucrose and Lignocellulose production. Recently, biomass-based industries designed to produce high-value chemicals and fuels from whole plant biomass encouraged new breeding efforts to develop plants with high sucrose yields and low Lignocellulose recalcitrance. The present study utilized four experimental sugarcane hybrids to evaluate the dynamics of sucrose and Lignocellulose accumulation, Lignocellulose composition, and enzymatic digestibility during internode development. During the internode maturation stages, the sucrose content increased while the Lignocellulose fraction presented an increased lignin and decreased glucan content. Enzymatic digestibility and lignin content of the Lignocellulose fraction displayed an inversely related pattern, and the first internode was two-fold more digestible than mature internodes, indicating that digestibility decreases significantly with internode maturation and tissue lignification. Some sugarcane hybrids (H89 and H58) combined desirable phenotype characteristics (high sucrose yield and low Lignocellulose recalcitrance) that were not detected in H140 and H321. Proper molecular markers discriminating these samples will help to further design breeding steps to produce sugarcane modern hybrids combining high sucrose yields and low Lignocellulose recalcitrance.
