Phytol
Mostrando 1-12 de 57 artigos, teses e dissertações.
-
1. Ultrasonic Extracts of Morinda citrifolia L.: Characterization of Volatile Compounds by Gas Chromatography-Mass Spectrometry
Morinda citrifolia (noni) is found in the Atlantic and Amazonian Forest in Brazil and with recognized uses in folk medicine. However, few studies exist in its chemical characterization. The present work aims to investigate the efficiency of the sonication for extracting bioactive compounds from fruits and leaves of noni, using an experimental design of 23, w
J. Braz. Chem. Soc.. Publicado em: 2019-01
-
2. Chemical constituents from Casearia spp. (Flacourtiaceae/Salicaceae sensu lato)
ABSTRACT Chemical investigation of the leaves of Casearia gossypiosperma Briq., Salicaceae, led to the isolation of two known flavonoids, (+)-taxifolin and quercetin, the leaves of Casearia decandra Jacq. have afforded hydroquinone, the leaves of Casearia rupestris Eichler and Casearia lasiophylla Eichler have afforded a diterpene, (E)-phytol, and the leaves
Rev. bras. farmacogn.. Publicado em: 2017-12
-
3. Chemical composition and seasonal variation of the volatile oils from Trembleya phlogiformis leaves
ABSTRACT Trembleya phlogiformis DC., Melastomataceae, is a shrub whose leaves are used as a dye for dyeing wool and cotton. The present article aimed to carry out the morphological description of the species, to study the chemical composition of volatile oils from the leaves and flowers and the seasonal variability from the leaves during a year. Macroscopic
Rev. bras. farmacogn.. Publicado em: 2017-08
-
4. Chemical Constituents of Psychotria nemorosa Gardner and Antinociceptive Activity
Through dereplication strategies using gas chromatography-mass spectrometry (GC-MS) and ultra fast liquid chromatography-tandem mass spectrometry (UFLC-MS/MS), the ethanol extract from Psycotria nemorosa leaves (Rubiaceae) showed to be composed of: cinnamic acid, dihydroactinidiolide, 4-hydroxy-β-ionone, phytol, isophytol, 4,8,12,16-tetramethylheptadecan-4-
J. Braz. Chem. Soc.. Publicado em: 2017-05
-
5. A New Furanoheliangolide Sesquiterpene Lactone from Calea pinnatifida (R. Br.) Less. (Asteraceae) and Evaluation of Its Trypanocidal and Leishmanicidal Activities
Calea pinnatifida (R. Br.) Less. is commonly known in Brazil as "cipó-cruz", "quebra-tudo" or "aruca". This species is employed in folk medicine as giardicidal, amoebicidal and to treat digestive disorders. The present paper describes the isolation and structure determination of a new furanoheliangolide sesquiterpene lactone named 11,13-dihydroxy-calaxin, i
J. Braz. Chem. Soc.. Publicado em: 2017-02
-
6. Bioassay guided purification of cytotoxic natural products from a red alga Dichotomaria obtusata
ABSTRACT Different solvent extracts of Dichotomaria obtusata (J. Ellis & Solander) Lamark, Galaxauraceae, a red algae collected from the coast of Bushehr in the Persain Gulf, was investigated for its cytotoxic properties and chemical constituents. The fresh alga, after extraction with methanol and dichloromethane were combined and partitioned between water,
Rev. bras. farmacogn.. Publicado em: 2016-12
-
7. Cholinesterase inhibitory activity and structure elucidation of a new phytol derivative and a new cinnamic acid ester from Pycnanthus angolensis
ABSTRACT The leaves of Pycnanthus angolensis (Welw.) Warb., Myristicaceae, are used as memory enhancer and anti-ageing in Nigerian ethnomedicine. This study aimed at evaluating the cholinesterase inhibitory property as well as isolates the bioactive compounds from the plant. The acetylcholinesterase and butyrylcholinesterase inhibitory potentials of extracts
Rev. bras. farmacogn.. Publicado em: 2016-08
-
8. Antileishmanial metabolites from Lantana balansae
ABSTRACT Eleven compounds, 12-oxo-phytodienoic acid (1), persicogenin (2), eriodictyol 3′,4′,7-trimethyl ether (3), phytol (4), spathulenol (5), 4-hydroxycinnamic acid (6), onopordin (7), 5,8,4′-trihydroxy-7,3′-dimethoxyflavone (8), quercetin (9), jaceosidin (10), and 8-hydroxyluteolin (11), were isolated from an ethanol extract of Lantana balansae B
Rev. bras. farmacogn.. Publicado em: 2016-04
-
9. Diplotaxis simplex suppresses postprandial hyperglycemia in mice by inhibiting key-enzymes linked to type 2 diabetes
Abstract Nutritional properties of Diplotaxis simplex Spreng., Brassicaceae, an edible wild cruciferous largely distributed in North Africa, were investigated. Potassium (3690–3780 mg/100 g) and calcium (900–1170 mg/100 g) were the most concentrated minerals. Linoleinic acid was found to be the main fatty acid (25.4–27.7%), followed by palmitic acid (1
Rev. bras. farmacogn.. Publicado em: 2015-04
-
10. Volatile compounds of Lamiaceae exhibit a synergistic antibacterial activity with streptomycin
Bacterial infections cause thousands of deaths in the world every year. In most cases, infections are more serious because the patient is already weakened, and often, the bacteria are already resistant to the antibiotics used. Counterparting this negative scenario, the interest in medicinal plants as an alternative to the synthetic antimicrobial drugs is blo
Braz. J. Microbiol.. Publicado em: 2014-12
-
11. Estudo químico, análise do óleo essencial e avaliação das atividades antioxidante e antibacteriana do Marmelhinho [Cordiera sessilis (Vell.) Kuntze (Rubiaceae)]
In this work was carried out chemical analysis, identification of volatile components, the determination of antioxidant activity and antibacterial activity of wood, bark and leaves of Cordiera sessilis (Vell) Kuntze, known as marmelinho. This study is justified because the analysis of chemical species Cordiera sessilis (Vell) Kuntze had not been studied so f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/07/2012
-
12. Chemical constituents of Lecythis pisonis and cytotoxic activity
The phytochemical investigation of the ethanol extract from leaves of Lecythis pisonis Cambess., Lecythidaceae, resulted in the isolation of seven triterpenes: α- and β-amyrin, uvaol and erythrodiol, ursolic and oleanolic acids and 3β-friedelinol, as well as a mixture of sitosterol and stigmasterol steroids and a diterpene (E)-phytol. The structures of th
Rev. bras. farmacogn.. Publicado em: 17/04/2012