Convenient Preparation and Quantification of 5,5′-Diferulic Acid

1999 ◽  
Vol 63 (2) ◽  
pp. 390-394 ◽  
Author(s):  
Hirotaka YAMAMOTO ◽  
Tsutomu HOSHINO ◽  
Takeo UCHIYAMA
Keyword(s):  
Diferulic Acid ◽  
Convenient Preparation

A Convenient Preparation of 9H-Carbazole-3,6-dicarbonitrile and 9H-Carbazole-3,6-dicarboxylic Acid

Synthesis ◽  
2014 ◽  
Vol 46 (05) ◽  
pp. 596-599 ◽  
Author(s):  
Mohamed Eddaoudi ◽  
Łukasz Weseliński ◽  
Ryan Luebke
Keyword(s):  
Dicarboxylic Acid ◽  
Convenient Preparation

scholarly journals Anticholinesterase Activities of Different Solvent Extracts of Brewer’s Spent Grain

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 930
Author(s):  
Rares I. Birsan ◽  
Peter Wilde ◽  
Keith W. Waldron ◽  
Dilip K. Rai
Keyword(s):  
Ethyl Acetate Fraction ◽  
Therapeutic Approaches ◽  
Total Polyphenol ◽  
Brewer’S Spent Grain ◽  
Dietary Polyphenols ◽  
Synthetic Drugs ◽  
Naturally Occurring ◽  
Diferulic Acid ◽  
Spent Grain ◽  
Butyryl Cholinesterase

Cholinesterases, involved in acetylcholine catabolism in the central and peripheral nervous system, have been strongly linked with neurodegenerative diseases. Current therapeutic approaches using synthetic drugs present several side effects. Hence, there is an increasing research interest in naturally-occurring dietary polyphenols, which are also considered efficacious. Food processing by-products such as brewer’s spent grain (BSG) would be a potential bio-source of polyphenols. In this study, polyphenol-rich BSG extracts using 60% acetone and 0.75% NaOH solutions were generated, which were further subjected to liquid–liquid partitioning using various organic solvents. The water-partitioned fractions of the saponified extracts had the highest total polyphenol content (6.2 ± 2.8mgGAE/g dw) as determined by Folin–Ciocalteu reagent, while the LC-MS/MS showed ethyl acetate fraction with the highest phenolics (2.9 ± 0.3mg/g BSG dw). The best inhibitions of acetyl- (37.9 ± 2.9%) and butyryl- (53.6 ± 7.7%) cholinesterases were shown by the diethyl ether fraction of the saponified extract. This fraction contained the highest sum of quantified phenolics (99 ± 21.2µg/mg of extract), and with significant (p < 0.01) inhibitory contribution of decarboxylated-diferulic acid. Amongst the standards, caffeic acid presented the highest inhibition for both cholinesterases, 25.5 ± 0.2% for acetyl- and 52.3 ± 0.8% for butyryl-cholinesterase, respectively, whilst the blends insignificantly inhibited both cholinesterases. The results showed that polyphenol-rich BSG fractions have potentials as natural anti-cholinesterase agents.

ChemInform Abstract: A CONVENIENT PREPARATION OF α-METHYLENE-Δ-VALEROLACTONES

1978 ◽  
Vol 9 (26) ◽  
Author(s):  
S. W. BALDWIN ◽  
M. T. CRIMMINS ◽  
V. I. CHEEK
Keyword(s):  
Convenient Preparation

ChemInform Abstract: A CONVENIENT PREPARATION OF α,α-DIPHENYLACETOPHENONE

1981 ◽  
Vol 12 (37) ◽  
Author(s):  
N. S. NUDELMAN ◽  
A. A. VITALE
Keyword(s):  
Convenient Preparation

Convenient preparation of hindered dialkyltin(IV) derivatives

1993 ◽  
Vol 12 (12) ◽  
pp. 4881-4886 ◽  
Author(s):  
Xianqi Kong ◽  
T. Bruce Grindley ◽  
Pradip K. Bakshi ◽  
T. Stanley Cameron
Keyword(s):  
Convenient Preparation

A CONVENIENT PREPARATION OF 1-AROYLPIPERAZINES

1976 ◽  
Vol 8 (2) ◽  
pp. 85-86 ◽  
Author(s):  
Mahesh Desai ◽  
Jeffrey W. H. Watthey ◽  
Marie Zuckerman
Keyword(s):  
Convenient Preparation

ChemInform Abstract: CONVENIENT PREPARATION OF β-HALOVINYL KETONES UNDER NONACIDIC CONDITIONS

1976 ◽  
Vol 7 (11) ◽  
pp. no-no
Author(s):  
L. GRUBER ◽  
I. TOEMOESKOEZI ◽  
L. RADICS
Keyword(s):  
Convenient Preparation

ChemInform Abstract: A Convenient Preparation of Optically Active Diepoxyhenicosene (Leucomalure), Lymantrid Sex Pheromone, by Chiral HPLC.

ChemInform ◽  
2010 ◽  
Vol 30 (33) ◽  
pp. no-no
Author(s):  
Masanobu Yamamoto ◽  
Hiroyuki Yamazawa ◽  
Naoto Nakajima ◽  
Tetsu Ando
Keyword(s):  
Sex Pheromone ◽  
Optically Active ◽  
Chiral Hplc ◽  
Convenient Preparation
Sign in / Sign up

Export Citation Format

Share Document