Soda cellulose depolymerization with a catalyst

N. A. Kuptsan; T. P. Makarova

doi:10.1007/bf00543150

Cellulose Depolymerization with LPMO‐inspired Cu Complexes

ChemCatChem ◽

10.1002/cctc.202101169 ◽

2021 ◽

Author(s):

Ivan Castillo ◽

Andrea P. Torres‐Flores ◽

Diego F. Abad‐Aguilar ◽

Armando Berlanga‐Vázquez ◽

Maylis Orio ◽

...

Keyword(s):

Cellulose Depolymerization ◽

Cu Complexes

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Physical state of cellulose in BmimCl: dependence of molar mass on viscoelasticity and sol-gel transition

Physical Chemistry Chemical Physics ◽

10.1039/c5cp06616f ◽

2016 ◽

Vol 18 (3) ◽

pp. 1460-1469 ◽

Cited By ~ 18

Author(s):

Yongjun Ahn ◽

Seung-Yeop Kwak ◽

Younghan Song ◽

Hyungsup Kim

Keyword(s):

Phase Transition ◽

Ionic Liquid ◽

Physical State ◽

Molar Mass ◽

Sol Gel ◽

Cellulose Depolymerization ◽

Sol Gel Transition ◽

Gel Transition

Monitoring cellulose depolymerization and phase transition in ionic liquid.

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On the Origin of Cellulose Depolymerization During Ozone Treatment of Hardwood Kraft Pulp

BioResources ◽

10.15376/biores.8.4.5289-5298 ◽

2013 ◽

Vol 8 (4) ◽

Cited By ~ 8

Author(s):

Frederic Pouyet ◽

Christine Chirat ◽

Dominique Lachenal

Keyword(s):

Kraft Pulp ◽

Ozone Treatment ◽

Cellulose Depolymerization

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Kinetic analysis of cellulose depolymerization reactions in near critical water

The Journal of Supercritical Fluids ◽

10.1016/j.supflu.2012.12.013 ◽

2013 ◽

Vol 75 ◽

pp. 48-57 ◽

Cited By ~ 63

Author(s):

Danilo A. Cantero ◽

M. Dolores Bermejo ◽

M. José Cocero

Keyword(s):

Kinetic Analysis ◽

Cellulose Depolymerization

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Feasibility of rice straw as a raw material for the production of soda cellulose pulp

Journal of Cleaner Production ◽

10.1016/j.jclepro.2010.03.011 ◽

2010 ◽

Vol 18 (10-11) ◽

pp. 1084-1091 ◽

Cited By ~ 42

Author(s):

Alejandro Rodríguez ◽

Rafael Sánchez ◽

Ana Requejo ◽

Ana Ferrer

Keyword(s):

Rice Straw ◽

Raw Material ◽

Soda Cellulose ◽

Cellulose Pulp

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Determining the composition of the soda-cellulose

Fibre Chemistry ◽

10.1007/bf00544403 ◽

1976 ◽

Vol 7 (4) ◽

pp. 415-416

Author(s):

A. S. Korolev ◽

Yu. V. Sharikov

Keyword(s):

Soda Cellulose

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Process characteristics in the production of soda cellulose by in-bulk steeping

Fibre Chemistry ◽

10.1007/bf00551194 ◽

1977 ◽

Vol 9 (1) ◽

pp. 56-58

Author(s):

V. B. Glazunov ◽

R. A. Khurgina ◽

B. M. Gorovits

Keyword(s):

Soda Cellulose ◽

Process Characteristics

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Water-soluble chlorophyll-binding proteins from Brassica oleracea allow for stable photobiocatalytic oxidation of cellulose by a lytic polysaccharide monooxygenase

10.21203/rs.3.rs-40886/v1 ◽

2020 ◽

Author(s):

N. Dodge ◽

D. A. Russo ◽

B.M. Blossom ◽

R.K. Singh ◽

B. van Oort ◽

...

Keyword(s):

Binding Proteins ◽

Plant Biomass ◽

Light Exposure ◽

Water Soluble ◽

Lytic Polysaccharide Monooxygenase ◽

Cellulose Oxidation ◽

Biomass Processing ◽

Polysaccharide Monooxygenases ◽

Cellulose Depolymerization

Abstract Background Lytic polysaccharide monooxygenases (LPMOs) are indispensable redox enzymes used in industry for the saccharification of plant biomass. LPMO-driven cellulose oxidation can be enhanced considerably through photobiocatalysis using chlorophyll derivatives and light. Water soluble chlorophyll binding proteins (WSCPs) make it is possible to stabilize and solubilize chlorophyll in aqueous solution, allowing for in vitro studies on photostability and ROS production. Here we aim apply a WSCP-Chl a as a photosensitizing complex for photobiocatalysis with the LPMO, TtAA9. Results We have in this study demonstrated how WSCP reconstituted with chlorophyll a (WSCP-Chl a) can create a stable photosensitizing complex which produces controlled amounts of H2O2 in the presence of ascorbic acid and light. WSCP-Chl a is highly reactive and allows for tightly controlled formation of H2O2 by regulating light intensity. TtAA9 together with WSCP-Chl a shows increased cellulose oxidation under low light conditions, and the WSCP-Chl a complex remains stable after 24 hours of light exposure. Additionally, the WSCP-Chl a complex demonstrates stability over a range of temperatures and pH conditions relevant for enzyme activity in industrial settings. Conclusion With WSCP-Chl a as the photosensitizer, the need to replenish Chl is greatly reduced, enhancing the catalytic lifetime of light-driven LPMOs and increasing the efficiency of cellulose depolymerization. WSCP-Chl a allows for stable photobiocatalysis providing a sustainable solution for biomass processing.

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