Results 71 to 80 of about 18,427 (197)

Study of Purified Cellulosic Pulp and Lignin Produced by Wheat Straw Biorefinery

open access: yesMacromol
With the world population rising, wheat straw production is expected to reach 687–740 million tons per year by 2050. Its frequent application as a fuel source leads to air, water, and soil pollution.
Kalvin Durand   +3 more
doaj   +1 more source

The Biodegradation of Organic Substrates Under Arctic and Subarctic Conditions [PDF]

open access: yes, 1972
The objective of this research was to obtain data on the metabolic reaction rates of the microorganisms indigenous to the cold environments of the arctic and sub-arctic in order to evaluate the natural abilities of the freshwater streams and lakes of ...
Murphy, R. Sage, Murray, Ann P.
core  

The impacts of pretreatment on the fermentability of pretreated lignocellulosic biomass: a comparative evaluation between ammonia fiber expansion and dilute acid pretreatment [PDF]

open access: yes, 2009
Background Pretreatment chemistry is of central importance due to its impacts on cellulosic biomass processing and biofuels conversion. Ammonia fiber expansion (AFEX) and dilute acid are two promising pretreatments using alkaline and acidic pH that have ...
Dale Bruce E   +2 more
core   +1 more source

Sustainable and cost‐effective process design for energy‐self‐sufficient ethyl lactate production from sugar mill feedstocks: a techno‐economic approach

open access: yesBiofuels, Bioproducts and Biorefining, Volume 20, Issue 2, Page 487-507, March/April 2026.
Abstract Bio‐based ethyl lactate (EL) can replace several fossil‐derived products owing to its low toxicity, high solvent functionality, and environmental advantages. This study assesses the techno‐economic viability and greenhouse gas (GHG) reduction potential of producing EL from sugarcane A‐molasses and lignocelluloses in an energy self‐sufficient ...
Motshamonyane J. Phasha   +2 more
wiley   +1 more source

Vanillin production from lignin depolymerization by acidic deep eutectic solvent and its possible mechanism

open access: yesEnvironmental Progress &Sustainable Energy, Volume 45, Issue 2, March/April 2026.
Abstract As one of the most abundant renewable resources and complex aromatic polymers, lignin holds great promise for producing monophenolic compounds. However, its depolymerization into valuable monomers is hindered by intricate side reactions. In this study, alkaline lignin was converted into vanillin using nine choline chloride‐based deep eutectic ...
Xiaoyan Chen, Xiaohui Pan, Dongyang Cui
wiley   +1 more source

Cellulosic materials as biopolymers and supercritical CO2as a green process: chemistry and applications [PDF]

open access: yes, 2012
In this review, we describe the use of supercritical CO2 (scCO2) in several cellulose applications. The focus is on different technologies that either exist or are expected to emerge in the near future.
Camy, Séverine   +2 more
core   +3 more sources

Synthesis of Carboxylic Cellulose Nanocrystals From Yellow Thatching Grass (Hyparrhenia filipendula) via Citric Acid Hydrolysis

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1322-1338, March 2026.
Fractionation of yellow thatching grass using sodium hydroxide and deep eutectic solvent Carboxylated Cellulose nanocrystals (CNCs) were successfully synthesized via hydrolysis with 80 wt% citric acid at 120°C for 4 h Variations in CNC characteristics were observed based on the fractionation method used ABSTRACT Grass is an abundant and renewable ...
Fildah Ayaa   +4 more
wiley   +1 more source

Enzymatic Hydrolysis of Arabinogalactan from Siberian Larch Wood

open access: yesЛесной журнал
When pulp is obtained from plant raw materials, secondary resources are formed represented by hydrolysates of polysaccharides and lignin, which can act as a substrate in microbiotechnology for the production of bioproducts.
Aigul R. Galieva   +5 more
doaj   +1 more source

The natural catalytic function of CuGE glucuronoyl esterase in hydrolysis of genuine lignin-carbohydrate complexes from birch [PDF]

open access: yes, 2018
Background Glucuronoyl esterases belong to carbohydrate esterase family 15 and catalyze de-esterification. Their natural function is presumed to be cleavage of ester linkages in lignin–carbohydrate complexes particularly those linking lignin and ...
Holck, Jesper   +3 more
core   +1 more source

Enzyme‐Powered DNA Origami Nanostructures for Enhanced Mucosal Diffusion

open access: yesSmall Structures, Volume 7, Issue 3, March 2026.
Single‐particle tracking reveals how DNA origami navigates mucus. Bare structures show limited diffusion, while enzyme‐functionalized nanostructures exhibit enhanced mobility. Symmetrically arranged urease creates uniform pH gradients for smooth propulsion, whereas asymmetrically placed catalase drives bubble‐mediated motion.
Matteo Tollemeto   +7 more
wiley   +1 more source

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