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AbstractAbstract
[en] Lignin has a significant and largely unrealized potential as a source for the sustainable production of fuels and bulk high-value chemicals. It can replace fossil-based oil as a renewable feedstock that would bring about socio-economic and environmental benefits in our transition to a biobased economy. The efficient utilization of lignin however requires its depolymerization to low-molecular weight phenolics and aromatics that can then serve as the building blocks for chemical syntheses of high-value products. The ability of laccase to attack and degrade lignin in conjunction with laccase mediators is currently viewed as one of the potential “breakthrough” applications for lignin valorization. Here, we review the recent progress in lignin biodegradation with laccase-mediator systems, and research needs that need to be addressed in this field.
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Source
Available from http://dx.doi.org/10.3389/fenrg.2014.00012; Copyright (c) 2014 Christopher, Yao and Ji.; This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
Frontiers in Energy Research; ISSN 2296-598X;
; v. 2; [13 p.]

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INIS IssueINIS Issue
Cui, Yanan; Jiang, Jingbin; Yang, Huanhuan; Zhao, Tingting; Xu, Xiangyang; Li, Jingfu, E-mail: 2369172533@qq.com, E-mail: jjb1248@126.com, E-mail: 848319534@qq.com, E-mail: ttzhao2016@163.com, E-mail: xxy709@126.com, E-mail: Lijf_2005@126.com2018
AbstractAbstract
[en] Highlights: • Using the method of Virus-induced gene silencing verified the function of the SLNLC1gene. • DAB and NBT staining was applied to microscopic observation the production of H2O2 or O2-. • TB and AB staining was used for detecting the accumulation of lignin or callose. In a previous study, when resistant tomato plants (cv. Motelle) carrying the Sm gene were challenged with S. lycopersici, the SLNLC1 gene was significantly upregulated. In this study, to verify the function of the SLNLC1 gene response to disease resistance against S. lycopersici, virus-induced gene silencing (VIGS) was used to downregulate the expression level of the SLNLC1 gene in resistant tomato plants inoculated with S. lycopersici. After inoculation with S. lycopersici, a susceptible phenotype was observed in the silenced SLNLC1-resistant plants. Through microscopy, impaired hypersensitive response (HR) and decreased ROS accumulation were also observed in the silenced SLNLC1 plants. In addition, the production of lignin and callose were decreased in the silenced SLNLC1 plants. Taken together, these results indicated that silencing the SLNLC1 gene attenuated the resistance of tomato plants resistant to S. lycopersici.
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S0006291X18315705; Available from http://dx.doi.org/10.1016/j.bbrc.2018.07.074; Copyright (c) 2018 Elsevier Inc. All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Biochemical and Biophysical Research Communications; ISSN 0006-291X;
; CODEN BBRCA9; v. 503(3); p. 1524-1529

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AbstractAbstract
No abstract available
Original Title
Modificacoes estruturais da lignina e celulose por irradiacao ultravioleta no pre-tratamento de materiais lignocelulosicos
Source
34. Annual Meeting of the Brazilian Society for the Advancement of Science; Campinas, SP (Brazil); 6 - 14 Jul 1982; Published in summary form only.
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Journal Article
Literature Type
Conference
Journal
Cienc. Cult. (Sao Paulo) Supl; v. 34(7); p. 429-430
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LanguageLanguage
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Ambrose, K.; Hurisso, B.B.; Singer, R.D., E-mail: Robert.Singer@SMU.ca2013
AbstractAbstract
[en] Ionic liquid tagged salen ligands containing two proximal 1,3-disubstituted imidazolium ionic liquid cores form cobalt(III) complexes capable of selectively oxidizing veratryl alcohol, a lignin model compound, to veratraldehyde using air or pure oxygen as the source of oxygen. Entrainment of these catalysts in either 1-butyl-3-methylimidazolium hexafluorophosphate, [bmim][PF6], or 1-butyl-3-methylimidazolium bistriflimide, [bmim][NTf2], hydrophobic ionic liquid solvents, results in biphasic reactions when water is used as the second solvent allowing the catalyst/ionic liquid phase to be recycled. (author)
Primary Subject
Source
Available from doi: https://doi.org/10.1139/cjc-2013-0336; 16 refs., 2 tabs.
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Journal Article
Journal
Canadian Journal of Chemistry; ISSN 0008-4042;
; v. 91(12); p. 1258-1261

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External URLExternal URL
AbstractAbstract
No abstract available
Original Title
Primenenie lignina v kachestve bleskoobrazovatelya pri tsinkovanii i kadmirovanii
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Source
For English translation see the journal Prot. Met. Published in summary form only.
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Journal Article
Journal
Zashchita Metallov; v. 9(4); p. 497-498
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AbstractAbstract
[en] Kenaf (Hibiscus cannabinus) retting were separated from a kenaf bast fiber by a combination of Electron beam irradiation (EBI) and NaOH solution treatment. The methods were based on a 6% NaOH solution treatment after various doses of EBI. FT-IR spectroscopy demonstrated that the content of lignin and hemicellulose in the retted kenaf fibers decreased as the EBI dose increased. Specifically, the lignin in the retted kenaf fiber treated with 300 kGy of EBI was almost completely removed. The morphology of retted kenaf fibers were characterized by SEM image, and the studies showed that the fibrillated degree of retted kenaf fibers treated with various EBI doses and was increased as EBI dose increased. The retted kenaf fibers treated with the EBI at 300 kGy was uniformly fibrillated with 10 ∼ 30 μm diameters
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Source
8 refs, 2 figs, 1 tab
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Journal Article
Journal
Journal of Radiation Industry; ISSN 1976-2402;
; v. 4(2); p. 139-142

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Sharifah Hanisah Syed Abd Aziz; Raja Jamal Raja hedar; Zahid Abdullah
Proceedings of the MINT R and D Seminar 2004: Innovation through excellence in R and D, Seminar B2004
Proceedings of the MINT R and D Seminar 2004: Innovation through excellence in R and D, Seminar B2004
AbstractAbstract
[en] The absolute density of plant fibres excludes all pores and lumen and therefore is a measure of the solid matter of the fibres. On the other hand the bulk density, which is being discussed here, includes all the solid matter and the pores of the fibres. In this work, the apparent density of the fibre was measured by using the Archimedes principle, which involves the immersion of a known weight of fibre into a solvent of lower density than the fibre. Toluene with a density of about 860 kg/m3 was chosen as a solvent. A tuft of fibre was weighed and recorded as Wfa. The fibre was then immersed in toluene, which wetted the fibre, and made to rest on the weighing pan submerged in the solvent and the weight of the immersed fibre was recorded as Wfs. The apparent density was then calculated using the equation. All the measurements were taken at room temperature. The fibre samples were not oven dried prior to measurement. (Author)
Primary Subject
Source
Malaysian Inst. for Nuclear Technology Research MINT, Bangi (Malaysia); 404 p; 2004; p. 359-361; Seminar MINT R and D 2004; Bangi (Malaysia); 12-15 Jul 2004; Available at Malaysian Inst. for Nuclear Technology Research MINT, Bangi, Malaysia; Ainon@mint.gov.my; Poster presentation
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Miscellaneous
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Conference
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Related RecordRelated Record
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Chung, Byung Yeoup; Hyeong, Min Ho; An, Byung Chull; Lee, Eun Mi; Lee, Seung Sik; Kim, Jin-Hong; Kim, Jae-Sung; Kim, Tae-Hoon; Cho, Jae-Young, E-mail: soilcosmos@chonbuk.co.kr2009
AbstractAbstract
[en] Owing to homogeneous hollow tube shape and hydrophobicity of kapok fiber, the usages of this fiber are various such as fiberfill in pillows, quilts, non-woven fabric for oil spill cleanup and plastic green house. Even though kapok fiber is able to apply various industrial usages, it has a serious disadvantage which is the extreme sensitivity to spark or flame. Therefore, we try to make flame-resistant kapok fiber using gamma ray. The radiation caused loss of hydrophobic compounds in kapok fiber and no morphological change, especially fine hollow tube shape, was observed. The lignin contents were negligible changed after gamma irradiation. However, the building units of lignin polymer such as coniferyl alcohol, and sinapyl alcohol were significantly changed that is, functional group as a methoxyl group from lignin polymer was cleaved by gamma irradiation. Based on the results of removal of hydrophobic compounds and cleavage of methoxyl group from lignin polymer, kapok fiber can be converted into a flame-resistant fiber by gamma ray treatment.
Primary Subject
Source
IMRP 2008: 15. international meeting on radiation processing; London (United Kingdom); 21-25 Sep 2008; S0969-806X(09)00077-2; Available from http://dx.doi.org/10.1016/j.radphyschem.2009.03.036; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Suarex, C.; Paz Saa, D.; Diaz Palma, A.
Junta de Energia Nuclear, Madrid (Spain)1983
Junta de Energia Nuclear, Madrid (Spain)1983
AbstractAbstract
[en] The acid prehydrolysis of the lignocellulosic biomass from thistle O. nervosum has been conducted to determine the conditions for maximum yield of pentoses with minimum yield of hexoses. Variables studied were acid concentration (H2SO4, 1, 3, 4 and 5%), temperature (10000 and 1200C) time, solid to liquid ratio and degree of fineness of thistle (4 to 65 mesh). (author)
Original Title
Prehidrolisis acida de la biomasa lignocelulosica del cardo ''onopordum nervosum boiss''
Source
1983; 20 p
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Report
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AbstractAbstract
[en] This research aimed to evaluate the potential of several native white rot fungi (WRF) isolated from subtropical environments of Misiones (Argentina) to produce different ligninolytic enzymes. Coriolus versicolor f. antarcticus BAFC 266, Pycnoporus sanguineus BAFC 2126 and Phlebia brevispora BAFC 633 showed the highest phenoloxidase activity. Ganoderma applanatum strain E, P. sanguineus BAFC 2126 and P. brevispora BAFC 633 revealed marked laccase and peroxidase activity. C. versicolor f. antarcticus, G. applanatum (strain A) and Trametes villosa, gave high positive reactions with 2,6-dimethoxyphenol oxidation at the lowest tested pH. C. versicolor f. antarcticus, G. applanatum strains D and F, T. elegans BAFC 2127 and T. villosa, showed the highest manganese peroxidase activity. C. versicolor f. antarcticus also produced the highest lignin peroxidase activity. Tyrosinase activity was mostly evident in G. applanatum strains (D and F) and Phanerochaete chrysosporium HHB 11741. Kraft liquor decolorisation results were variable and depended on the fungus and the liquor concentration. Some fungi with moderate ligninolytic activity showed high decolorisation rates (e.g. Pleurotus sajor-caju and Steccherinium sp. BAFC 1171) indicating the significance of additional approach to evaluate a potential biotechnological application.
Original Title
Caracterizacion del potencial enzimatico oxidativo de cepas nativas de hongos de pudricion blanca de la selva subtropical de Misiones (Argentina)
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Journal Article
Journal
Acta Biologica Colombiana; ISSN 0120-548X;
; v. 20(1); p. 47-56

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