Alkaline hydrogen peroxide pretreatment of lignocellulosic biomass: status and perspectives

2017 ◽  
Vol 8 (1) ◽  
pp. 225-234 ◽  
Author(s):  
Emmanuel Damilano Dutra ◽  
Fernando Almeida Santos ◽  
Bárbara Ribeiro Alves Alencar ◽  
Alexandre Libanio Silva Reis ◽  
Raquel de Fatima Rodrigues de Souza ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Lignocellulosic Biomass ◽  
Alkaline Hydrogen Peroxide

Enhancement of lignocellulosic biomass anaerobic digestion by optimized mild alkaline hydrogen peroxide pretreatment for biorefinery applications

2021 ◽  
Vol 298 ◽  
pp. 113539
Author(s):  
İbrahim Alper Başar ◽  
Özge Çoban ◽  
Mehmet Yekta Göksungur ◽  
Çiğdem Eskicioğlu ◽  
Nuriye Altınay Perendeci
Keyword(s):  
Hydrogen Peroxide ◽  
Anaerobic Digestion ◽  
Lignocellulosic Biomass ◽  
Alkaline Hydrogen Peroxide

The Conversion of Levoglucosenone into Isolevoglucosenone

2015 ◽  
Vol 68 (4) ◽  
pp. 593 ◽  
Author(s):  
Xinghua Ma ◽  
Natasha Anderson ◽  
Lorenzo V. White ◽  
Song Bae ◽  
Warwick Raverty ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Single Crystal ◽  
Lignocellulosic Biomass ◽  
Allylic Alcohol ◽  
Allylic Alcohols ◽  
Alkaline Hydrogen Peroxide ◽  
X Ray ◽  
Epoxy Ketones ◽  
Epoxy Alcohols

Levoglucosenone (1), a compound that will soon be available in tonne quantities through the pyrolysis of acid-treated lignocellulosic biomass, has been converted into isolevoglucosenone (2) using Wharton rearrangement chemistry. Treatment of compound 1 with alkaline hydrogen peroxide gave the γ-lactones 5 and 6 rather than the required epoxy-ketones 3 and/or 4. However, the latter pair of compounds could be obtained by an initial Luche reduction of compound 1, electrophilic epoxidation of the resulting allylic alcohol 8 and oxidation of the product oxiranes 9 and 10. Independent treatment of compounds 3 and 4 with hydrazine then acetic acid followed by oxidation of the ensuing allylic alcohols finally afforded isolevoglucosenone (2). Details of the single-crystal X-ray analyses of epoxy-alcohols 9 and 10 are reported.

The behavior of chromophoric structures in softwood mechanical pulp on bleaching with alkaline hydrogen peroxide

2006 ◽  
Vol 21 (3) ◽  
pp. 359-364 ◽  
Author(s):  
Eva Svensson Rundlöf ◽  
Eric Zhang ◽  
Liming Zhang ◽  
Göran Gellerstedt
Keyword(s):  
Hydrogen Peroxide ◽  
Alkaline Hydrogen Peroxide ◽  
Mechanical Pulp

Features correlated to improved enzymatic digestibility of corn stover subjected to alkaline hydrogen peroxide pretreatment

2021 ◽  
Vol 325 ◽  
pp. 124688
Author(s):  
Li Yang ◽  
Yue Ru ◽  
Shuai Xu ◽  
Tongjun Liu ◽  
Liping Tan
Keyword(s):  
Hydrogen Peroxide ◽  
Corn Stover ◽  
Alkaline Hydrogen Peroxide ◽  
Enzymatic Digestibility

scholarly journals Characterizing Wool Keratin

2009 ◽  
Vol 2009 ◽  
pp. 1-5 ◽  
Author(s):  
Jeanette M. Cardamone ◽  
Alberto Nuñez ◽  
Rafael A. Garcia ◽  
Mila Aldema-Ramos
Keyword(s):  
Hydrogen Peroxide ◽  
Gel Electrophoresis ◽  
Water Soluble ◽  
Alkaline Solutions ◽  
Biodegradable Material ◽  
Alkaline Hydrogen Peroxide ◽  
Cortical Cells ◽  
Sds Page ◽  
Fibrous Matrices ◽  
Wool Keratin

Keratin from wool is a reactive, biocompatible, and biodegradable material. As the biological structural component of skin (soft keratins) and of nails, claws, hair, horn, feathers, and scales (hard keratins) pure keratin comprises up to 90% by weight of wool. Wool was treated in alkaline solutions to extract from 68% to 82% keratin within 2 to 5 hours of exposure at . The keratin products were water-soluble and were confirmed to contain intermediate filament and microfibrillar component-proteins of fractured, residual cuticle, and cortical cells. Oxidation of wool by peroxycarboximidic acid in alkaline hydrogen peroxide produced keratin products with distinct microcrystalline structures: descaled fibers, fibrous matrices, and lyophilized powders. Morphology and confirmation of peptide functionality were documented by SEM, Amino Acid Analysis, SDS-PAGE gel electrophoresis, MALDI-TOF/TOF, and FTIR analyses. The reactivity of keratin from wool models the reactivity of keratin from low-value sources such as cattle hair.

Titanium Corrosion in Alkaline Hydrogen Peroxide

CORROSION ◽  
2000 ◽  
Vol 56 (8) ◽  
pp. 809-818 ◽  
Author(s):  
J. Been ◽  
D. Tromans
Keyword(s):  
Hydrogen Peroxide ◽  
Alkaline Hydrogen Peroxide

scholarly journals Mechanistic insights into the bleaching of melanin by alkaline hydrogen peroxide

2017 ◽  
Vol 108 ◽  
pp. 110-117 ◽  
Author(s):  
R.A.W. Smith ◽  
B. Garrett ◽  
K.R. Naqvi ◽  
A. Fülöp ◽  
S.P. Godfrey ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Alkaline Hydrogen Peroxide

Enhancement of Methane Production from Banana Harvesting Residues: Optimization of Thermal–Alkaline Hydrogen Peroxide Pretreatment Process by Experimental Design

2018 ◽  
Vol 10 (10) ◽  
pp. 3071-3087 ◽  
Author(s):  
Fatih Yilmaz ◽  
Elçin Kökdemir Ünşar ◽  
Nuriye Altınay Perendeci
Keyword(s):  
Hydrogen Peroxide ◽  
Experimental Design ◽  
Methane Production ◽  
Alkaline Hydrogen Peroxide
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