diarylheptanoid/dichloromethane

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Macrocyclic diarylheptanoids from Garuga pinnata.

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Ingia / Ingia

Three macrocyclic diarylheptanoids, 6'-hydroxygaruganin V (1), 9'-desmethylgarugamblin I (2) and 1,9'-didesmethylgaruganin III (3) were isolated from the petroleum ether and dichloromethane extracts of the stem bark of Garuga pinnata. The structures of these compounds were established by extensive

Phenolic compounds from the rhizome of Renealmia nicolaioides Loes.: a new diarylheptanoid.

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Ingia / Ingia

This study aims to identify phenolic compounds in dichloromethane and methanolic extracts of the rhizome of Renealmia nicolaioides collected in the North Region of Brazil. Two known diarylheptanoids, 1,7-bis(4-hydroxyphenyl)-(1E)-1-hepten-3-one (1), and 5R-1,7-bis(4-hydroxyphenyl)-1E-hepten-5-ol

In vitro peroxynitrite scavenging activity of diarylheptanoids from Curcuma longa.

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Ingia / Ingia

Peroxynitrite is a cytotoxic intermediate produced by the reaction between the superoxide anion (O(2)) and nitric oxide (NO). The aim of this study was to investigate the scavenging effects of Curcuma longa L. on authentic peroxynitrite, and further studies are planned that will attempt to identify

1,1-Diphenyl-2-picrylhydrazyl radical-scavenging active compounds from greater cardamom (Amomum subulatum Roxb.).

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Ingia / Ingia

Constituents of the fruits of greater cardamom (Amomum subulatum) were fractionated into three fractions, the dichloromethane extract, and the ethyl acetate-soluble and water-soluble fractions of the 70% aqueous acetone extract. The ethyl acetate-soluble fraction showed a high radical-scavenging

Antioxidant properties of gingerol related compounds from ginger.

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Ingia / Ingia

Ginger (Zingiber officinale Roscoe) shows an antioxidant activity, and we have been engaging to determine the structures of more than 50 antioxidants isolated from the rhizomes of ginger. The isolated antioxidants are divided into two groups; gingerol related compounds and diarylheptanoids. In this

Fresh organically grown ginger (Zingiber officinale): composition and effects on LPS-induced PGE2 production.

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Ingia / Ingia

Gas chromatography in conjunction with mass spectrometry, a technique previously employed to analyze non-volatile pungent components of ginger extracts modified to trimethylsilyl derivatives, was applied successfully for the first time to analyze unmodified partially purified fractions from the

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Herbal & Natural Medicine

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