Monoterpene glucosides from Origanum syriacum

Kamel, Mohamed S.; Assaf, Mahmoud H.; Hasanean, H.A; Ohtani, Kazuhiro; Kasai, Ryoji; Yamasaki, Kazuo

doi:10.1016/s0031-9422(01)00386-7

Cited by 36 publications

(16 citation statements)

References 13 publications

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“…grossheimii were collected from Yarımca Village C-NMR data of 1-7 agree with the literature. [24][25][26][27][28][29][30][31][32][33][34] Ursolic Acid (1) [24][25][26][27] 1 g, B) were subjected to silica gel column by eluting with 1H, d, J=15.8 Hz, H-8), 5.19 (1H, m, H-8′), 3.70 (3H, s, -OCH 3 ), 3.03 (1H, m, H-7a′), 3.03 (1H, m, H-7b′); Remaining aqueous extract (27 g) was subjected to reversed phase silica gel column and eluted with H 2 O : MeOH (100 : 0 0 : 100). The fractionation and isolation scheme is given in Fig.…”

Section: Methodsmentioning

confidence: 99%

Phtytochemical Studies and Quantitative HPLC Analysis of Rosmarinic Acid and Luteolin 5-O-β-D-Glucopyranoside on Thymus praecox subsp. grossheimii var. grossheimii

Sevindik

Ozgen

Atila

et al. 2015

CHEMICAL & PHARMACEUTICAL BULLETIN

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Section: Methodsmentioning

confidence: 99%

Phtytochemical Studies and Quantitative HPLC Analysis of Rosmarinic Acid and Luteolin 5-O-β-D-Glucopyranoside on Thymus praecox subsp. grossheimii var. grossheimii

Sevindik

Ozgen

Atila

et al. 2015

CHEMICAL & PHARMACEUTICAL BULLETIN

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“…Significantly improved whole-body insulin sensitivity [122,123] induced changes of postprandial peptide YY and ghrelin responses [124] and increased postprandial cholecystokinin levels [125]. Dihydroavenanthramide D protects pancreatic beta-cells from cytokine and STZ toxicity [117] Monoterpene glucosides [140], oxygenated monoterpenes and sesquiterpenes [141]. Polar phenolic analytes; hydroxyl-benzoates, hydroxylcinnamates, and flavonoids [142].…”

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confidence: 99%

Medicinal Plants from Jordan in the Treatment of Diabetes: Traditional Uses vs.In VitroandIn VivoEvaluations – Part 2

2011

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“…For the second section of the original chromatographic profile with compounds that eluted after 50 minutes, 26 the exchange of methanol as the modifier for acetonitrile led to higher resolution which improved the trapping process. At the developed chromatographic conditions, it was possible to trap luteolin 4'-O-β-glucopyranoside (3, t R = 17.5 min, 700 µg), 33,34 carvacrol 2-O-β-glucopyranoside (4, t R = 22.7 min, 500 µg), 35 5,7,3',5'-tetrahydroxy flavanone (5, t R = 23.2 min, 300 µg), 36 naringenin (6, t R = 25.4 min, 500 µg) 2 and carvacrol (7, t R = 29.5 min, 600 µg). 31 The SPE trapping method chosen was the UV absorption threshold, which selects the bands based on the intensity of their UV absorptions, this approach minimizes the errors caused by the slight variation in the retention time of the selected bands during the chromatographic runs.…”

Section: Resultsmentioning

confidence: 99%

Secondary Metabolites from an Infusion of Lippia gracilis Schauer Using the LC‑DAD-SPE/NMR Hyphenation Technique

Moraes¹,

Thomasi²,

Sprenger³

et al. 2016

J. Braz. Chem. Soc.

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The genus Lippia comprises approximately 200 species of herbs, shrubs and small trees, distributed throughout the South and Central America and tropical Africa. The species Lippia gracilis Schauer is an endemic aromatic plant of the Brazilian Northeast normally found in the states of Bahia, Sergipe and Piauí. The traditional communities of Caatinga, a semi-arid region of the Brazilian Northeast, use its leaves to treat throat and mouth infections, cutaneous diseases, ulcers, vagina disorders, acne, Pityriasis alba, dandruff, burns, wounds, sinusitis, bronchitis, nasal congestion, headache, jaundice and paralysis. Considering that the main investigations into the L. gracilis Schauer species are focused on its volatile constituents, in this report, we describe the isolation, by liquid chromatography with diode array detector-solid phase extraction/nuclear magnetic resonance (LC-DAD-SPE/NMR), of five flavonoids besides free and glycosidically bound carvacrol from an infusion of the leaves of a genotype of this species. Keywords: Lippia gracilis Schauer, infusion, LC-DAD-SPE/NMR, flavonoids, carvacrol IntroductionBrazilian plants have a great potential to be explored because, for many of them, there is little or no knowledge of their chemical compositions.1 Lippia gracilis Schauer (Verbenaceae) is a species that is included in this group once, to our knowledge, there is only one report about its non-volatile constituents, 2 while most reports are focused on studies on the composition of essential oils and their biological activities. 3-21The genus Lippia comprises approximately 200 species of herbs, shrubs and small trees, distributed throughout the South and Central America countries and tropical Africa. 22The species L. gracilis Schauer is an endemic aromatic plant to the Brazilian Northeast normally found in the states of Bahia, Sergipe and Piauí. The traditional communities of Caatinga, a semi-arid region of the Brazilian Northeast, use its leaves to treat throat and mouth infections, cutaneous diseases, ulcers, vagina disorders, acne, Pityriasis alba, dandruff, burns, wounds, sinusitis, bronchitis, nasal congestion, headache, jaundice and paralysis. [23][24][25] Although there is little knowledge about the non-volatile constituents of L. gracilis, there are several phytochemical studies describing the isolation of various compounds from other species of this genus, including iridoid glucosides, phenylethanoid glucosides, phenylpropanoids, triterpenes saponins, flavonoids, naphthoquinones, flavonoids glucosides, lignans, sesquiterpenes and triterpenes. Previous chemical investigations into the L. gracilis Schauer species are focused on its volatile constituents where thymol and carvacrol, which showed strong antimicrobial activity against fungi and bacteria, are the main components. 12 The chemical composition of the volatile compounds shows quantitative variations of the The literature only reports one study on the isolation of fixed constituents from the methanolic extract from the leaves of L. gracilis Schau...

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Monoterpene glucosides from Origanum syriacum

Cited by 36 publications

References 13 publications

Phtytochemical Studies and Quantitative HPLC Analysis of Rosmarinic Acid and Luteolin 5-<i>O</i>-β-D-Glucopyranoside on <i>Thymus praecox</i> subsp. <i>grossheimii</i> var. <i>grossheimii</i>

Phtytochemical Studies and Quantitative HPLC Analysis of Rosmarinic Acid and Luteolin 5-<i>O</i>-β-D-Glucopyranoside on <i>Thymus praecox</i> subsp. <i>grossheimii</i> var. <i>grossheimii</i>

Medicinal Plants from Jordan in the Treatment of Diabetes: Traditional Uses vs.In VitroandIn VivoEvaluations – Part 2

Secondary Metabolites from an Infusion of Lippia gracilis Schauer Using the LC‑DAD-SPE/NMR Hyphenation Technique

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