Results 31 to 40 of about 58,730,988 (246)

Rootstock effects on bitter pit incidence in ‘Honeycrisp’ apples are associated with changes in fruit’s cell wall chemical properties

Frontiers in Plant Science, 2022
Bitter pit (BP) is a physiological disorder of apples that often appears during or after cold storage. Despite being defined as a calcium deficiency disorder, BP is a complex process that is not only affected by the total Ca2+ content in the fruit but ...
Md Tabibul Islam, Jianyang Liu, Protiva Rani Das, Amritpal Singh, Sherif M. Sherif   +4 more
doaj   +1 more source

Synthèse d’arômes et désacidification d’une huile acide en milieu sans solvant

Oléagineux, Corps gras, Lipides, 2002
La neutralisation partielle de l’huile de grignon a été réalisée par estérification des acides gras libres, catalysé par le lipozyme™ en milieu sans solvant organique et à 40 °C. Le taux d’acidité de cette huile est passé alors de 30 à 13%.
Karra-chaabouni Maha, Zouari Nacim, Frikha Olfa, Sayari Adel, Gargouri Youssef   +4 more
doaj   +1 more source

Iodine-catalyzed green and efficient synthesis of secondary and tert-esters of N-acetyl-protected amino acids [PDF]

RSC Advances
Esterification of amino acids is a critical transformation in synthetic and peptide chemistry. In this study, a green and effective I2-catalyzed method was developed for the esterification of N-acetyl protected amino esters and their hydrolysis. It is an
Ghazala Razaq Abbasi, Muhammad Arfan, Muhammad Fahad Ehsan, Aamal Rehman, Imran Shakir, Muhammad Latif   +5 more
doaj   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Hidroesterificação enzimática de óleos de soja e de fritura em sistema de ultrassom [PDF]

, 2015
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2015.Neste trabalho estudou-se novas alternativas para produção de ésteres via hidroesterificação enzimática de
Zenevicz, Mara Cristina Picoli
core  

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

Impacts of ultrasound-assisted Fenton degradation and alkaline de-esterification on structural properties and biological effects of pectic polysaccharides from Tartary buckwheat leaves

Ultrasonics Sonochemistry
Tartary buckwheat (Fagopyrum tataricum (L.) Gaertn) leaf has abundant rhamnogalacturonan-I enriched pectic polysaccharides, which exert various health-promoting effects.
Wen-Bing Li, Jing Lei, Mei-Mei Qu Mo, Jie Li, Jing Wei, Yuan Liu, Shengpeng Wang, Yi-Chen Hu, Liang Zou, Ding-Tao Wu   +9 more
doaj   +1 more source

Hydrolysis of Acetamide on Low-Index CeO₂ Surfaces: Ceria as a Deamidation and General De-esterification Catalyst

ACS Catalysis, 2022
Using DFT calculations and acetamide as the main example, we show that ceria is a potential catalyst for the hydrolysis of amide and similar bonds. The overall reaction is endergonic in the gas phase, yielding acetic acid and ammonia, but is slightly exergonic in the aqueous phase, which facilitates ionization of the products (CH3COO- and NH4 ...
Suman Bhasker-Ranganath, Ye Xu
openaire   +2 more sources

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

Advanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal, Younan Ma, Asad Khanmohammed, Dipen Parande, Hanming Zhang, Saket Dolare, Juliet Chen, Apiwat Wangweerawong, Saswata Karmakar, Hongfeng Deng, Frank Koppenhagen, Shraddha Sharma, Eric Reyes, Sherry He, Lianne Boeglin, Caroline Woo, Azadeh Paksa, Ayed Allawzi, Anusha Dias, Gregory Troiano, Shrirang Karve, Frank DeRosa   +21 more
wiley   +1 more source