Results 81 to 90 of about 18,164 (213)

Environmental and economic sustainability assessment of biofuels from valorising spent coffee grounds

Cleaner Environmental Systems
This study quantifies and compares the life cycle environmental and economic sustainability of five most common and widely researched valorisation routes for spent coffee grounds (SCGs): i) fuel pelletizing; ii) combination of transesterification and ...
Piya Gosalvitr, Rosa M. Cuéllar-Franca, Robin Smith, Adisa Azapagic   +3 more
doaj   +1 more source

Utilization of fish oil for biodiesel production

Squalen, 2010
Recenty fossil fuel consumption gradually increases, resulting in decreases of its naturalresource and causing environmental problems such as air pollution and global warming.Attempts to overcome the problems have been made to create on alternative ...
Tri Nugroho Widianto, Bagus Sediadi Bandol Utomo   +1 more
doaj   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Transestérification éthanolique d'huile végétale dans des microréacteurs (transposition du batch au continu) [PDF]

, 2011
La réaction de transestérification des huiles végétales avec de l'éthanol permet la production d esters éthyliques dont les applications industrielles sont, à ce jour, essentiellement cosmétiques ou alimentaires. Pour ouvrir le champ des applications aux
PRAT, Laurent, RICHARD, Romain, THIEBAUD-ROUX, Sophie   +2 more
core   +3 more sources

Porcine Liver Esterase‐Catalyzed Dynamic Kinetic Resolution of a Lactone‐Bridged Biaryl: Impact of Organic Cosolvents on Enantioselectivity

European Journal of Organic Chemistry, EarlyView.
A stereolabile lactone‐bridged biaryl enables dynamic kinetic resolution to provide a conformationally stable ring‐opened biaryl. A significant positive effect of water‐immiscible organic cosolvents on the enantioselectivity in a reaction catalyzed by porcine liver esterase has been discovered for the first time.
Neha Dhiman, Anke Hummel, Kyohei Kanomata, Yoshinari Sawama, Tohru Taniguchi, Harald Gröger, Shuji Akai   +6 more
wiley   +1 more source

Multiobjective Optimization of Hydrogen‐Assisted Calophyllum inophyllum Biodiesel Operation in a Compression Ignition Engine

Energy Science &Engineering, EarlyView.
Tri‐fuel diesel–Calophyllum inophyllum biodiesel–hydrogen operation was tested over 96 points in a diesel engine. Eight performance and emission metrics feed a preference‐agnostic Bootstrapped Empirical Multiobjective Ranking and Selection methodology, revealing load‐blend‐hydrogen windows that increase efficiency, restrain smoke, and expose NOx trade ...
C. Naga Kumar, Nageswara Rao Dayadi, J. M. Babu, Srinivasa Reddy Yarram, Ravikiran Chintalapudi, Bridjesh Pappula   +5 more
wiley   +1 more source

Recent Progress on Enzyme Immobilization: Materials, Strategies, and Applications

Food Bioengineering, EarlyView.
Enzyme immobilization technology has undergone substantial evolution driven by advances in materials science. This review systematically examines the recent advances in enzyme immobilization since 2024, with a focused analysis of five major categories of enzyme carriers including covalent organic framework, metal‐organic frameworks, polymers, carbon ...
Shuran Wang, Ruoke Li, Yixuan Xie, Hanya Zhang, Xiaoyu Huang, Siwei Chen, Weixin Xu, Yueling Liu   +7 more
wiley   +1 more source

KINETICS OF PALM OIL TRANSESTERIFICATION IN METHANOL WITH POTASSIUM HYDROXIDE AS A CATALYST

Indonesian Journal of Chemistry, 2010
A study on palm oil transesterification to evaluate the effect of some parameters in the reaction on the reaction kinetics has been carried out. Transesterification was started by preparing potassium methoxide from potassium hydroxide and methanol and ...
Yoeswono Yoeswono, Triyono Triyono, Iqmal Tahir   +2 more
doaj   +1 more source

Characterisation of Thermophilic Esterases [PDF]

, 1995
Seventy two strains of thermophilic Bacilli (optimum growth temperatures 55[degrees]C-75[degrees]C) were screened for esterase activity. 23 strains showed some esterase activity when assayed with various p-NP substrates.
Wood, Andrew NP
core  

Flavour Ester Synthesis by Immobilized Lipases: A Research Overview With Industrial Relevance

Flavour and Fragrance Journal, EarlyView.
Research landscape of flavour ester synthesis by immobilized lipases, highlighting enzymatic routes, major research themes and aspects related to industrial relevance, including enzyme reuse, solvent‐free systems, process intensification and scale‐up potential.
Nicole Marasca, Francisco Lucas Chaves Almeida, Rebeca Luana Carneiro, Marcus Bruno Soares Forte   +3 more
wiley   +1 more source