Journal ArticleDOI
Flavonoids from Polygonum minus.
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TLDR
Two new components were isolated from the ether extract of Polygonum minus ; a flavone: 6,7-methylenedioxy-5,3′, 4′, 5′-tetramethoxyflavone and a methyl flavonol: 6.7-4′,5′-dimethylenediooxy-3,5, 3′-trimethoxyFLavone as discussed by the authors.About:
This article is published in Phytochemistry.The article was published on 1990-01-01. It has received 34 citations till now. The article focuses on the topics: Polygonum.read more
Citations
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Effect of solvents in extracting polyphenols and antioxidants of selected raw vegetables
Shaida Fariza Sulaiman,Azliana Abu Bakar Sajak,Kheng Leong Ooi,Supriatno,Supriatno,Eng Meng Seow +5 more
TL;DR: The results revealed the effect of different extracting solvents in altering the quantitative analyses of all vegetables and 70% acetone was identified as the most efficient solvent for extracting polyphenolic antioxidants from the vegetables.
Journal ArticleDOI
Antioxidant and nitric oxide inhibition activities of selected Malay traditional vegetables
TL;DR: In this article, the antioxidant properties and the effect on nitric oxide (NO) production, in lipopolysaccharide-activated macrophages, of 12 traditional vegetables of the Malaysian Malays, including Pithecellobium confertum, Averrhoa bilimbi, Portulaca oleracea, Solanum torvum, solanum nigrum, Persicaria tenella, Cosmos caudatus, Pandanus amaryllifolius, Curcuma mangga, Ocimum basilicum, Anacardium
Journal ArticleDOI
Antioxidant, total phenolic content and cytotoxicity evaluation of selected Malaysian plants.
Suhailah Wasman Qader,Mahmood Ameen Abdulla,Lee Suan Chua,Nigar Najim,Mazatulikhma Mat Zain,Sinin Hamdan +5 more
TL;DR: Although traditionally aqueous extracts are used, it is determined that ethanol extracts usually achieved better activity in the assays, and exhibited a strong correlation between antioxidant activity and the total phenol contents.
Book
Medicinal Plants of Asia and the Pacific
TL;DR: This chapter discusses medicinal Plants in the Family Annonaceae, focusing on the phytochemical properties of Fissistima lanuginosum, which is a synthesis of the fruit of fissistigma manubriatum and phytochemistry.
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Five New Anthocyanins, Ternatins A3, B4, B3, B2, and D2, from Clitoria ternatea Flowers
Norihiko Terahara,Masahiro Oda,Toshiro Matsui,Yutaka Osajima,Norio Saito,Kenjiro Toki,Toshio Honda +6 more
TL;DR: Five new ternatins 1-5 have been isolated from Clitoria ternatea flowers, and the structures have been determined by chemical and spectroscopic methods as delphinidin 3-malonylG having 3'- GCG-5'-GCG, 3'-GCGCG- 5'-GC, 3-GCGC-5-GC,3'-GC GC-5-' GCG, and 3- GCGC-4'-GC side chains.
References
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Chemistry of toxic range plants. Highly oxygenated flavonol methyl ethers from Gutierrezia microcephala
James N. Roitman,Lynn F. James +1 more
TL;DR: Agarwal et al. as mentioned in this paper isolated 20 flavonol methyl ethers displaying nine different oxygenation patterns in Gutierrezia microcephala, including 11 new flavonols.
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A potent cytotoxic warburganal and related drimane-type sesquiterpenoids from Polygonum hydropiper
Yoshiyasu Fukuyama,Tsuneo Sato,Yoshinori Asakawa,Yoshinori Asakawa,Tsunematsu Takemoto,Tsunematsu Takemoto +5 more
TL;DR: Warburganal, a drimane-type sesquiterpene dialdehyde which has potent cytotoxic, antifeedant, antibiotic and molluscicidal activities was isolated from.
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3-Methoxyflavones and coumarins from Artemisia incanescens
TL;DR: In this article, the 1H NMR spectra of Artemisia incanescens were compared in DMSO-d6 and CDCl3 and the hitherto unreported 13C NMR spectrum of some of these compounds were discussed.
Journal ArticleDOI
Flavonol glycosides in leaves of Spinacia oleracea
TL;DR: Besides spinatoside (3,6-dimethoxy-5,7,3′,4′-tetrahydroxyflavone 4′- O -β-D-glucopyranuronide), three new flavonol glycosides have now been isolated from the polar fractions of the methanolic extract of Spinacia oleracea as mentioned in this paper.
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Three highly oxygenated flavone glucuronides in leaves of Spinacia oleracea
Masakazu Aritomi,Toshio Kawasaki +1 more
TL;DR: The 4-glucuronides of 5,7,4'-trihydroxy-3,6,3′-trimethoxyflavone (jaceidin), 5,3,4',trihydrox-3-methoxy-6:7-methylene-dioxy-flavones and 5,4′-dihydroxy -3,3-dimethoxy 6:7]-methylenedioxy flavone have been identified as mentioned in this paper.