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You searched for: Subject term emulsions Remove constraint Subject term: emulsions Subject term catalytic activity Remove constraint Subject term: catalytic activity Subject term acylation Remove constraint Subject term: acylation
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1. Heteropoly acids-functionalized Janus particles as catalytic emulsifier for heterogeneous acylation in flow ionic liquid-in-oil Pickering emulsion

Author:
Xiuping Tang; Yu Hou; Qing Bo Meng; Guolin Zhang; Fuxin Liang; Xi-Ming Song
Source:
Colloids and surfaces 2019 v.570 pp. 191-198
ISSN:
0927-7757
Subject:
acylation; catalysts; catalytic activity; emulsifiers; emulsifying; emulsions; ionic liquids; moieties; nanoparticles; silica; toluene
Abstract:
... In this work, we developed a continuous non-aqueous flow Pickering emulsion interface catalysis (FPIC) system for heterogeneous acylation. Poly (1-vinyl-3-ethylimidazolium bromide) (PILs) functionalized silica@PS/PDVB Janus particles (JPs) were synthesized. The catalyst H3PW12O40 (PA) was then immobilized on PIL-modified JPs by anion-exchanging. The PIL grafted on the silica side and the inherent ...
DOI:
10.1016/j.colsurfa.2019.02.066

2. Immobilized feruloyl esterase from Humicola insolens catalyzes the synthesis of feruloylated oligosaccharides

Author:
Juan Tamayo-Cabezas; Salwa Karboune
Source:
Process biochemistry 2019 v.79 pp. 81-90
ISSN:
1359-5113
Subject:
Humicola insolens; acylation; catalytic activity; emulsions; epoxides; ferulic acid; feruloyl esterase; magnetism; microparticles; nanoparticles; raffinose; substrate specificity
Abstract:
... Ferulic acid acylation of oligosaccharides catalyzed by feruloyl esterases (FAE) is a promising route to produce feruloylated oligosaccharides. However, modulation of FAE synthetic properties is a key step to improve the acylation. The efficiency of H. insolens FAE to catalyze the feruloylation in six different surfactantless microemulsions reaction systems was evaluated. The highest yield (57%) w ...
DOI:
10.1016/j.procbio.2018.12.013

3. Interfacial Behavior of Fatty-Acylated Sericin Prepared by Lipase-Catalyzed Solid-Phase Synthesis

Author:
Masato OGINO; Rie TANAKA; Makoto HATTORI; Tadashi YOSHIDA; Yoshiko YOKOTE; Koji TAKAHASHI
Source:
Bioscience, biotechnology, and biochemistry 2006 v.70 no.1 pp. 66-75
ISSN:
1347-6947
Subject:
acylation; catalytic activity; desorption; emulsifying properties; emulsions; hexane; hydrophobicity; nuclear magnetic resonance spectroscopy; oleic acid; pH; sericin; sodium chloride; temperature; volatilization; wool
Abstract:
... Fatty-acylated sericin {1:0.7 molar ratio of sericin (M ᵣ 18,700) to oleic acid} was prepared by lipase-catalyzed solid-phase synthesis in n-hexane containing oleic acid to endow sericin with interfacial properties. Acylation with oleic acid was confirmed by ¹H-NMR. The fatty-acylated sericin exhibited superior emulsifying activity index and emulsion stability in the presence of 0–0.5 M NaCl, in a ...
DOI:
10.1271/bbb.70.66