Results 21 to 30 of about 58,046 (258)

Structural Characterization, Stability and Hypoglycemic Activity in Vitro of Roselle Anthocyanins and Its Esterified Product

Shipin gongye ke-ji
To investigate the structure, stability properties and hypoglycemic activity in vitro of roselle anthocyanins and its esterification product, anthocyanins were modified by esterification with succinic anhydride.
Lixia WANG, Zhenzhen WU, Sannü ZHOU
doaj   +1 more source

Estrification of Acetic Acid with Isoamyl Alcohol over Expandable Graphite Catalyst

E-Journal of Chemistry, 2008
The catalysis of expandable graphite for esterification of acetic acid with isoamyl alcohol has been studied. Expandable graphite was prepared with three different methods.
Xiu-Yan Pang, Pu Lv, Yi-Shuang Yang, Hai-Li Ren, Fei Gong   +4 more
doaj   +1 more source

Reaction Kinetics of Acetic Acid and n-Butanol Esterification Catalyzed by Dowex 50 Catalyst [PDF]

Engineering and Technology Journal, 2011
The reaction kinetics of the n-butanol esterification and acetic acid on acidic solid catalyst named Dowex 50 under atmospheric pressure was investagated in this work.
Zaidoon M. Shakoor, Khalid A. Sukkar, Mohammed S. Baqer   +2 more
doaj   +1 more source

Synthesis, Sunscreen, and Toxicity In Vitro Test of C-Styrylcalix[4]resorcinaryl Octacinnamate and C-Phenylcalix[4]resorcinaryl Dodecacinnamate

Indonesian Journal of Chemistry, 2022
The need for qualified sunscreen materials has increased from year to year. This prompt researchers to find new sunscreen ingredients that have good activity.
Budiana I Gusti Made Ngurah, Paulus Taek
doaj   +1 more source

Characteristics of cellulose nanofibril films prepared by liquid- and gas-phase esterification processes

e-Polymers
Cellulose nanofibrils (CNFs) are versatile materials, but their sensitivity to humidity affects performance. Esterification with fatty acids enhances the hydrophobicity of CNF films.
Kim Jeong-Ki, Bandi Rajkumar, Dadigala Ramakrishna, Han Song-Yi, Van Hai Le, Cho Seung-Woo, Ma Seo-Young, Lee Da-Young, Kwon Gu-Joong, Lee Seung-Hwan   +9 more
doaj   +1 more source

Optimization of the Esterification Process of Crude Palm Oil (CPO) with Natural Zeolite Catalyst Using Response Surface Methodology (RSM)

Indonesian Journal of Chemical Research
Esterification is one of the important processes in the production of biodiesel. This is done to ensure that the FFA content in CPO is less than 3%. The esterification reaction can be accelerated by using natural zeolite as a catalyst.
Said Ahmad Fadhilah, Elma Fatkhurin, Ni Ketut Sari   +2 more
doaj   +1 more source

Simulation of biodiesel production using hydro-esterification process from wet microalgae

MATEC Web of Conferences, 2018
Recently, algae have received a lot of attention as a new biomass source for the production of renewable energy, such as biodiesel. Conventionally, biodiesel is made through esterification or transesterification of oils where the process involves a ...
Pradana Yano Surya, Fauzi Ardian, Pratama Sangga Hadi, Sudibyo Hanifrahmawan   +3 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

Facial synthesis of sulfinic esters via copper-catalyzed reaction of sulfonyl hydrazides with alcohols in air

Journal of Saudi Chemical Society, 2019
The efficient Cu-catalyzed esterification of sulfonyl hydrazides with alcohols in air is described, providing sulfinic esters in good yields and broad scope.
Lingjuan Chen, Jiangxin Pu, Ping Liu, Bin Dai   +3 more
doaj   +1 more source

Ubiquitination of Substrates by Esterification [PDF]

Traffic, 2011
Post‐translational modification by ubiquitination determines intracellular location and fate of numerous proteins, thus impacting a diverse array of physiologic functions. Past dogma has been that ubiquitin was only coupled to substrates by isopeptide bonds to internal lysine residues or less frequently peptide bonds to the N‐terminus.
Xiaoli, Wang, Roger A, Herr, Ted H, Hansen   +2 more
openaire   +2 more sources