scholarly journals Total phenolics and phenolic acids content in low (Chrysopogon gryllus) and mediocre quality (Festuca vallesiaca) forage grasses of Deliblato Sands meadow-pasture communities in Serbia

2011 ◽  
Vol 50 (No. 2) ◽  
pp. 54-59 ◽  
Author(s):  
L. Djurdjević ◽  
M. Mitrović ◽  
P. Pavlović ◽  
S. Perišić ◽  
M. Mačukanović-Jocić
Keyword(s):  
Benzoic Acid ◽  
Phenolic Acids ◽  
Hplc Analysis ◽  
Total Phenolics ◽  
Syringic Acid ◽  
Forage Grasses ◽  
Benzoic Acid Derivatives ◽  
Derivatives Of ◽  
Bound Phenolics

 Chrysopogon gryllus and Festuca vallesiaca are components of a number of meadow-pasture communities in Serbia. We performed the analyses of phenolics that influence quality and digestibility of grasses to a great extent. Total phenolics were measured spectrophotometrically and phenolic acids by HPLC analysis. The aboveground parts of C. gryllus contained 10.6 mg/g whereas F. vallesiaca of 21.6 mg/g total phenolics. Bound phenolics dominated over free ones in both species. The content of both free and bound p-coumaric, ferulic, p-hydroxybenzoic and syringic acid was higher in C. gryllus (6.34 mg/g) than in F. vallesiaca (3.96 mg/g). Derivatives of cinnamic acid prevailed in both species compared to the benzoic acid derivatives. Low quality of C. gryllus is connected with its high tissue phenolic acids and mediocre quality of F. vallesiaca with the high content of total phenolics that act unfavourably on digestibility of such grasses.  

scholarly journals Stable Isotope Labeled 4-(Dimethylamino)benzoic Acid Derivatives of Glycerophosphoethanolamine Lipids

2009 ◽  
Vol 81 (16) ◽  
pp. 6633-6640 ◽  
Author(s):  
Karin A. Zemski Berry ◽  
William W. Turner ◽  
Michael S. VanNieuwenhze ◽  
Robert C. Murphy
Keyword(s):  
Stable Isotope ◽  
Benzoic Acid ◽  
Benzoic Acid Derivatives ◽  
Derivatives Of

C-3 benzoic acid derivatives of C-3 deoxybetulinic acid and deoxybetulin as HIV-1 maturation inhibitors

2016 ◽  
Vol 24 (8) ◽  
pp. 1757-1770 ◽  
Author(s):  
Zheng Liu ◽  
Jacob J. Swidorski ◽  
Beata Nowicka-Sans ◽  
Brian Terry ◽  
Tricia Protack ◽  
...  
Keyword(s):  
Benzoic Acid ◽  
Benzoic Acid Derivatives ◽  
Derivatives Of ◽  
Hiv 1

scholarly journals Soluble free phenolic compound contents and antioxidant capacity of bread and durum wheat genotypes

Genetika ◽  
2013 ◽  
Vol 45 (1) ◽  
pp. 87-100 ◽  
Author(s):  
Sladjana Zilic ◽  
Vesna Hadzi-Taskovic-Sukalovic ◽  
Dejan Dodig ◽  
Vuk Maksimovic ◽  
Vesna Kandic
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Durum Wheat ◽  
Bread Wheat ◽  
Phenolic Acids ◽  
Total Phenolics ◽  
Total Phenolic ◽  
Wheat Genotypes ◽  
Total Antioxidant ◽  
Bound Phenolics

The objective of this study was to determine phenolic compounds and the total antioxidant capacity in the grain of ten bread (T. aestivum L.) and ten durum (T. durum Desf.) wheat genotypes. Soluble free forms of total phenolics, flavonoids, PVPP (polyvinylpolypyrrolidone) bound phenolics, proanthocyanidins and phenolic acids were investigated. In addition, the correlation coefficients between total antioxidant capacities and the concentration of different soluble free phenolic compounds, as well as between soluble free total phenolics and phenolic acids, flavonoids and PVPP bound phenolics were determined. Significant differences in the content of aceton/water extractable total phenolics, PVPP bound phenolics and phenolic acids between and within two wheat species were found. On the average, durum wheat samples had about 1.19-fold higher total phenolic compounds and about 1.5-fold higher PVPP bound phenolics than bread wheat samples. Three phenolic acids, ferulic, caffeic and chlorogenic, were detected in wholemeal bread wheat. Caffeic acid was not found in durum wheat samples whilst ferulic acid was the most abundant. Proanthocyanidins in bread and durum wheat genotypes were not detected. The antioxidant capacity measured as the DPPH radical scavenging activity was similar in wholemeal of bread and durum wheat, however, significant differences were observed among genotypes within species.

Teratogenicity of benzoic acid derivatives of retinoic acid in cultured mouse embryos

1988 ◽  
Vol 2 (2) ◽  
pp. 91-98 ◽  
Author(s):  
Eugenia H. Goulding ◽  
Anton M. Jetten ◽  
Barbara D. Abbott ◽  
R.M. Pratt
Keyword(s):  
Retinoic Acid ◽  
Benzoic Acid ◽  
Mouse Embryos ◽  
Benzoic Acid Derivatives ◽  
Derivatives Of

Vapor-phase chromatography in glass-capillary column of high polar and involatile hydrocarbon-containing ether derivatives of disulpho-benzoic acid

2020 ◽  
pp. 54-56
Author(s):  
M.N. Alieva ◽  
◽  
V.M. Farzaliyev ◽  
Keyword(s):  
Benzoic Acid ◽  
Vapor Phase ◽  
Capillary Column ◽  
Glass Capillary Column ◽  
Glass Capillary ◽  
Chromatography Method ◽  
Polyphenyl Ether ◽  
Benzoic Acid Derivatives ◽  
Liquid Stationary Phase ◽  
Derivatives Of

The paper deals with the results of capillary columns implementation in vapor-phase chromatography. Glass and narrow-bore columns covered with liquid stationary phase and polyphenyl ether were used, the mixtures of aliphatic alcohols, acids, amines and ether derivatives of disulpho-benzoic acid, which are semi-products of additive synthesis analyzed. The usage of water vapor as a moving carrier of nitrogen enabled to decrease the analysis time and improve division efficiency. The retention time, height values of equivalent theoretic plates and coefficient of analyzed components asymmetry were calculated. Obtained results justify the practicability of glass capillary application for the analysis of disulpho-benzoic acid derivatives via vapor-phase chromatography method.

2-(2-Hydroxy-4-methoxybenzoyl)benzoic acid derivatives of Group 4 metal alkoxides

2014 ◽  
Vol 67 (5) ◽  
pp. 747-765 ◽  
Author(s):  
Timothy J. Boyle ◽  
Daniel T. Yonemoto ◽  
Michael L. Neville ◽  
Samuel P. Bingham
Keyword(s):  
Benzoic Acid ◽  
Metal Alkoxides ◽  
Benzoic Acid Derivatives ◽  
Group 4 ◽  
Group 4 Metal ◽  
Derivatives Of

scholarly journals Effect of phenolic acid content on acceptance of hazel cultivars by filbert aphid

2019 ◽  
Vol 55 (No. 2) ◽  
pp. 116-122
Author(s):  
Magdalena Gantner ◽  
Agnieszka Najda ◽  
Dariusz Piesik
Keyword(s):  
Benzoic Acid ◽  
Phenolic Acids ◽  
Chromatographic Analysis ◽  
Total Content ◽  
Total Phenolic ◽  
High Concentration ◽  
Leaf Extracts ◽  
The World ◽  
Important Pest ◽  
Derivatives Of

The allelopatic effect of phenolic acids contents in the leaves of six cultivars of hazel (Corylus L.) on the choice of plants by Myzocallis coryli Goetze (filbert aphid), one of the most important pest of hazel in Poland and throughout the world, was identified. The cvs White Filbert, Mogulnus, and Luizen Zellernus were more resistant to the feeding of aphids in all the years than cvs Minnas, Barra, and Halls Giant. The highest content of total phenolic acids was reported in the leaves of cvs White Filbert and Luizen Zellernuss, with a low level of acceptance by aphids. These cultivars demonstrated a high concentration of gallic acid and caffeic acid. In the leaves of cvs Minnas and Halls Giant, much infested by aphids, the total content of phenolic acids was significantly lower. Moreover, gallic and caffeic acids occurred at significantly lower concentrations. The chromatographic analysis of hazel leaf extracts revealed the presence of eight phenolic acids: gallic, protocatechuic, p-hydroxybenzoic, salicylic, chlorogenic, ferrulic, caffeic, and α-resorcinolic. The leaves of the tested cultivars, irrespective of the level of resistance to filbert aphid, showed a definitely higher concentration of acids, derivatives of trans-cinnamic acid, if compared to the amount of acids – derivatives of benzoic acid.

Ciprofloxacin salts with benzoic acid derivatives: structural aspects, solid-state properties and solubility performance

CrystEngComm ◽  
2020 ◽  
Vol 22 (25) ◽  
pp. 4238-4249
Author(s):  
Artem O. Surov ◽  
Nikita A. Vasilev ◽  
Alexander P. Voronin ◽  
Andrei V. Churakov ◽  
Franziska Emmerling ◽  
...  
Keyword(s):  
Solid State ◽  
Benzoic Acid ◽  
Analytical Techniques ◽  
Benzoic Acid Derivatives ◽  
Derivatives Of ◽  
Structural Aspects

In this work, three new pharmaceutical hydrated salts of ciprofloxacin with selected derivatives of benzoic acid were obtained and systematically investigated by several solid-state analytical techniques.

scholarly journals An effect of positional isomerism of benzoic acid derivatives on antibacterial activity against Escherichia coli

2021 ◽  
Vol 16 (1) ◽  
pp. 594-601
Author(s):  
Alicja Synowiec ◽  
Kinga Żyła ◽  
Małgorzata Gniewosz ◽  
Marek Kieliszek
Keyword(s):  
Antibacterial Activity ◽  
Benzoic Acid ◽  
Phenolic Acids ◽  
Biofilm Formation ◽  
Functional Group ◽  
Hydroxyl Group ◽  
Bacterial Cells ◽  
E Coli ◽  
Benzoic Acid Derivatives ◽  
Positional Isomerism

Abstract This study demonstrated the effect of positional isomerism of benzoic acid derivatives against E. coli ATCC 700728 with the serotype O157. The addition of hydroxyl and methoxyl substituents weakened the effect of acids against E. coli with respect to benzoic acid (except 2-hydroxybenzoic). The connection of the hydroxyl group at the second carbon atom in the benzoic ring reduced the time needed to kill bacterial cells. Phenolic acids with methoxyl substitutes limited the biofilm formation by E. coli to a greater extent than hydroxyl derivatives. The most significant influence on the antibacterial activity of phenolic acids has the type of substituent attached to the benzoic ring, their number, and finally the number of carbon atoms at which the functional group is located.

New Prenylated Benzoic Acid Derivatives of Piper hispidum.

ChemInform ◽  
2005 ◽  
Vol 36 (41) ◽  
Author(s):  
U. Friedrich ◽  
K. Siems ◽  
P. N. Solis ◽  
M. P. Gupta ◽  
K. Jenett-Siems
Keyword(s):  
Benzoic Acid ◽  
Benzoic Acid Derivatives ◽  
Derivatives Of
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