The Use of Aromatic Acids and Phospholipid-Ester-Linked Fatty Acids for Delineation of Processes Affecting an Aquifer Contaminated with JP-4 Fuel

1997 ◽  
pp. 65-76 ◽  
Author(s):  
Jiasong Fang ◽  
Michael J. Barcelona ◽  
Candida West
Keyword(s):  
Fatty Acids ◽  
Aromatic Acids

Monomeric phenolic compounds in the Siberian larch needles

2016 ◽  
Author(s):  
Н.В. Транчук ◽  
В.И. Рощин
Keyword(s):  
Fatty Acids ◽  
Phenolic Acids ◽  
Group Composition ◽  
Siberian Larch ◽  
Larix Sibirica ◽  
Aromatic Acids ◽  
Cinnamic Acids ◽  
Cis And Trans ◽  
First Time ◽  
Live Organism

Представлены результаты исследования состава группы фенолокислот хвои Larix sibirica, извлеченной диэтиловым эфиром из изопропанольного экстракта. Приведены данные по хроматографическому разделению исследуемой группы веществ на такие классы соединений, как бензойные, коричные и кумаровые ки- слоты, фенолоальдегиды, фенолокетоны, флавонолы. Показано, что в наиболь- шем количестве содержатся флавонолы, их выход составил 6,78% от группы фенолокислот, выход ароматических кислот немного меньше – 6,21%, аромати- ческие кетоны и альдегиды содержатся в примерно равных количествах – 0,4 и 0,34% соответственно. Гидроксибензойная и ванилиновая кислоты являются до- минирующими в своем классе, их содержание достигает 3,67 и 1,49% соответст- венно от массы фенолокислот. Среди фенолоальдегидов идентифицированы п- гидроксибензальдегид и ванилин. Идентифицированы и выделены три флавоно- ла: кемпферол, изорамнетин, мирицитин. Кемпферол содержится в наибольшем количестве – 3,92%, содержание изорамнетина и мирицитина составляет 2,08 и 0,78% соответственно. Впервые сообщается об обнаружении в хвое Larix sibirica п-гидроксибензойной, дигидрокоричной, цис- и транс-коричных кислот, 4-(4- гидроксифенил)-2-бутанона (реозмин), 4-(4-гидрокси-3-метоксифенил)-2- бутанона (зингерон). Установлено, что наряду с ароматическими соединениями, группа фенолокислот содержит смоляные и высшие жирные кислоты, доля ко- торых не превышает 1 и 6% соответственно. Отмечено высокое содержание ян- тарной и яблочной кислот, являющихся незаменимыми для живого организма, так как принимают участие в цикле Кребса. The results of investigation of phenolic acids group composition in Larix sibirica needles are presented in this research. The group was derived from isopropyl extract by diethyl ether. Phenolic acids group was divided into fraction using the method of column chromatography. It is shown that the researched group of substances consists of flavonols for 6.78%, aromatic acids for 6.21%, phenolic ketones and phenolic aldehydes for 0.40 and 0.34% respectively. 4-Hydroxybenzoic and vanilic acids dominate in its class, their content reaches 3.67 and 1.49% of phenolic acids group mass. 4-Hydroxybenzaldehyde and vanillin are detected. Three flavonols are obtained and identified: kaempferol, isorhamnetin, myricitin. Kaempferol is the main flavonol, its content is 3.9%. Contents of isorhamnetin and myricitin are 2.08 and 0.78% respectively. It is the first time it is reported about detection in needles of Larix sibirica 4-hydroxybenzoic, dihydrocinnamic, cis- and trans-cinnamic acids, 4-(4 hydroxyphenyl)- 2 butanone (rheosmin), 4-(4-hydroxy-3-methoxyphenyl)-2 butanone (zingerone). It is determined that phenolic acids group contains resin and highest fatty acids, which share doesn't exceed 1 and 6% respectively. It is significant that high content of succinic and malic acids present, because such acids are irreplaceable for a live organism since they take part in Krebs's cycle.

scholarly journals p-Hydroxyphenacyl esters of saturated fatty acids and aromatic acids

1968 ◽  
Vol 17 (3) ◽  
pp. 310-314 ◽  
Author(s):  
Sadayoshi KOSUGE ◽  
Masaji FURUTA ◽  
Okitatsu YAMAGUCHI
Keyword(s):  
Fatty Acids ◽  
Saturated Fatty Acids ◽  
Aromatic Acids

scholarly journals DETERMINATION OF THE CHEMICAL COMPOSITION OF GRAPE SEED POWDERS BY GC-MS ANALYSIS

2018 ◽  
Vol 6 ◽  
pp. 3-8
Author(s):  
Olena Gorodyska ◽  
Nataliya Grevtseva ◽  
Olga Samokhvalova ◽  
Sergey Gubsky
Keyword(s):  
Fatty Acids ◽  
Chemical Composition ◽  
Experimental Studies ◽  
Natural Antioxidants ◽  
Grape Seed ◽  
Aromatic Acids ◽  
Phenol Compounds ◽  
Different Origin ◽  
Water Alcohol

Substantiation of the expedience of using of natural antioxidants for inhibiting of oxidative and hydrolytic rancidity in confectionary industry is an urgent direction. The offered way of solving the problem is to use a fat-less grape seed powder, a product, obtained as wastes of vine-making as a source of antioxidants. For this aim, there were realized experimental studies of water-alcohol extracts (ethanol, isopropanol) by the method of gas chromatography with mass-spectroscopic detection (CG-MS) of the chemical composition of grape seed powders under industrial conditions. The obtained data allowed to establish that the studied extracts contain an essential amount of phenol compounds of the different origin: aromatic acids – gallic and egallic acids; resveratrol; flavonoids – quercetin and its derivatives, catechine, epicatechine, campferol and others alongside with esters of fatty acids. These components are strong antioxidants, and their introduction to a grape seed powder must favor inhibition of the oxidizing process of fats in fat-containing confectionary products, so increasing shelf-life of products.

Cyclic fatty acids: Removal of aromatic acids formed during hydrogenation

1966 ◽  
Vol 43 (8) ◽  
pp. 515-518 ◽  
Author(s):  
R. A. Eisenhauer ◽  
R. E. Beal ◽  
L. T. Black ◽  
J. P. Friedrich
Keyword(s):  
Fatty Acids ◽  
Aromatic Acids ◽  
Cyclic Fatty Acids

scholarly journals Evidence-Based Studies and Perspectives of the Use of Brazilian Green and Red Propolis in Dentistry

2019 ◽  
Vol 13 (03) ◽  
pp. 459-465 ◽  
Author(s):  
Claudemir de Carvalho ◽  
Wesley Henrique Cabral Fernandes ◽  
Thays Barreto Freitas Mouttinho ◽  
Daniela Martins de Souza ◽  
Maria Cristina Marcucci ◽  
...  
Keyword(s):  
Amino Acids ◽  
Fatty Acids ◽  
Candida Albicans ◽  
Dentin Hypersensitivity ◽  
Therapeutic Effects ◽  
Evidence Based ◽  
Aromatic Acids ◽  
Review Of The Literature ◽  
Aromatic Esters ◽  
Aliphatic Esters

AbstractThis review analyzes the evidence and perspectives of dental use of the green and red propolis produced in Brazil by Apis mellifera L. Multiple applications of propolis were found considering its antibacterial, antifungal, anti-inflammatory, immunomodulatory, antiviral, and healing properties. Its therapeutic effects are mainly due to the presence of alcohols, aldehydes, aliphatic acids, aliphatic esters, amino acids, aromatic acids, aromatic esters, flavonoids, hydrocarbyl esters, ethers, fatty acids, ketones, terpenes, steroids, and sugars. Propolis has been mainly used in dentistry in the composition of dentifrices and mouthwashes. Studies have also demonstrated promising use against dentin hypersensitivity, root canal treatment, Candida albicans, and other microorganisms. Overall review of the literature presented here demonstrated that both Brazilian green and red propolis are effective for the problems of multiple etiologies that affect the oral cavity in different dental specialties.

Fatty Acids and Glycerides

1979 ◽  
Vol 7 (4) ◽  
pp. 813-814
Author(s):  
J. L. HARWOOD
Keyword(s):  
Fatty Acids
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