Results 51 to 60 of about 23,645 (231)

Activating Paper Applying Gelatin, Starch and Chitosan Coatings Loaded With O/W Emulsions Encapsulating Rutin, Carvacrol and α‐Tocopherol

open access: yesPackaging Technology and Science, EarlyView.
Emulsion type governed the microstructure and functionality of papers coated with biopolymers matrix loaded with hydrophobic bioactives encapsulated into O/W emulsions. Emulsified systems improved UV–Vis barrier and antioxidant activity, whereas gelatin coatings with conventional or Pickering emulsions provided the greatest mechanical reinforcement ...
Kamila de L. Santos   +4 more
wiley   +1 more source

Ozonólise das ligninas organossolve e kraft eucalipto. Parte II: cinética nos meios ácido e básico Ozonolysis of organosolv and kraft eucalyptus lignins. Parte II: kinetic in basic and acid media

open access: yesQuímica Nova, 1998
Organosolv and kraft lignins were treated with ozone both in basic and acid media and the reaction was studied kinetically. In contrast to reported studies, ozone was more efective in basic medium.
Evandro A. Nascimento   +3 more
doaj   +1 more source

Biotransformation of Lignin by an Artificial Heme Enzyme Designed in Myoglobin With a Covalently Linked Heme Group

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
The conversion of Kraft lignin in plant biomass into renewable chemicals, aiming at harvesting aromatic compounds, is a challenge process in biorefinery.
Wen-Jie Guo   +7 more
doaj   +1 more source

Nickel Foam Electrodes—A Versatile, Powerful, and Readily Available Tool in Electro‐Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
Nickel foam—one material, two faces, and several versatile roles depending on electrolytic conditions. For more than 50 years, nickel foam electrodes have served in electrosynthesis as powerful and readily available electrode materials. Due to their inexpensive nature and easy handling, they have been widely employed.
Rok Narobe   +2 more
wiley   +1 more source

Exploration of the Linkages between Lignin and Carbohydrates in Kraft Pulp from Wheat Straw Using a 13C/2H Isotopic Tracer

open access: yesMolecules, 2023
To further our understanding of the change in association between lignin and carbohydrates after kraft pulping, isotope-labeled kraft pulp (KP) was prepared using 13C and D double-isotope-labeled wheat straw, and it was subjected to enzymatic hydrolysis ...
Hujun Niu   +4 more
doaj   +1 more source

Ultrastructural characterization (morphological and topochemical) of wood pulp fibres [PDF]

open access: yes, 2007
Different electron microscopy techniques including SEM (scanning electron microscopy), FE-SEM (field emission-scanning electron microscopy), TEM (transmission electron microscopy) and Immuno-gold TEM (immuno-gold transmission electron microscopy) were ...
Fernando, Dinesh
core  

Performance of Ceriporiopsis SP. in the Treatment of Black Liquor Wastewater [PDF]

open access: yes, 2016
High amounts of black liquor wastewater are generated from bioethanol production by using oil palm empty fruit bunches. It contains an alkaline solution (NaOH), so it is quite toxic for aquatic ecosystems if discharged directly into waters.
Sari, A. A. (Ajeng)
core   +1 more source

Thermal Degradation Kinetics and Flame‐Retardant Synergy in Zinc Borate/Red Phosphorus‐Filled Thermoplastic Polyurethane Composites

open access: yesJournal of Vinyl and Additive Technology, EarlyView.
The synergistic interaction between red phosphorus (RP) and zinc borate (ZnB) enhances the thermal stability and flame retardancy of TPU by forming a dense, stable protective char layer. Non‐isothermal kinetic analysis confirms a complex degradation mechanism governed by conversion‐dependent activation energy.
Volkan Murat Yılmaz
wiley   +1 more source

Techno-Economic Analysis of the Optimum Softwood Lignin Content for the Production of Bioethanol in a Repurposed Kraft Mill

open access: yesBioResources, 2014
Kraft pulping is one possible pretreatment for softwood to economically produce bioethanol. This work evaluates the techno-economic potential of using the kraft process for producing bioethanol from softwoods in a repurposed or co-located kraft mill ...
Shufang Wu   +3 more
doaj   +1 more source

Lignin engineering in forest trees [PDF]

open access: yes, 2019
Wood is a renewable resource that is mainly composed of lignin and cell wall polysaccharides. The polysaccharide fraction is valuable as it can be converted into pulp and paper, or into fermentable sugars.
Alvarenga Chanoca, Alexandra   +2 more
core   +1 more source

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