Author
B. Ternai
Bio: B. Ternai is an academic researcher from La Trobe University. The author has contributed to research in topics: Carbon-13 NMR & Flavonols. The author has an hindex of 4, co-authored 4 publications receiving 1298 citations.
Topics: Carbon-13 NMR, Flavonols, Glycosidic bond, Acylation, Flavones
Papers
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TL;DR: In this article, 13 C NMR spectra for a variety of flavonoid glycosidcs are presented and analyzed, and evidence is presented which demonstrates that 13 C nMR spectroscopy is a valuable technique for distinguishing the sites of methylation, glycosylation and acylation in glycoiides.
858 citations
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TL;DR: In this paper, the 13-C NMR spectra for a number of dihydroflavones, dihydronols, flavonols, chalcones, and several glycosides in DMSO-d 6 solvent are reported and analysed.
237 citations
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TL;DR: In this article, the C-NMR spectra of hydroxylated flavones and flavonols are presented for the first time and the accepted substitution additivity rules have been shown to hold for these compounds except in cases where structural modifications involve the C 3, 4 and 5 positions.
204 citations
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TL;DR: In this paper, the 13C NMR spectra for a variety of isoflavones are presented and analysed for a novel isoflone, Millettin (Xa), which is shown to be closely related to Auriculatin (II).
29 citations
Cited by
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TL;DR: In this article, 13 C NMR spectra for a variety of flavonoid glycosidcs are presented and analyzed, and evidence is presented which demonstrates that 13 C nMR spectroscopy is a valuable technique for distinguishing the sites of methylation, glycosylation and acylation in glycoiides.
858 citations
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TL;DR: No signs of toxicity have been observed with the normal intake of hesperidin or related compounds.
Abstract: Hesperidin, a bioflavonoid, is an abundant and inexpensive by-product of Citrus cultivation. A deficiency of this substance in the diet has been linked with abnormal capillary leakiness as well as pain in the extremities causing aches, weakness and night leg cramps. No signs of toxicity have been observed with the normal intake of hesperidin or related compounds. Both hesperidin and its aglycone hesperetin have been reported to possess a wide range of pharmacological properties. This paper reviews various aspects of hesperidin and its related compounds, including their occurrence, physical and chemical properties, analysis, pharmacokinetics, safety and toxicity and the marketed products available. A special emphasis has been laid on the pharmacological properties and medicinal uses of these compounds.
709 citations
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TL;DR: This review covers the phytochemistry and pharmacology of naturally occurring phloroglucinols, describing 700 compounds and containing a total of 484 references.
473 citations
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TL;DR: Two compounds, apigenin-7-rutinoside and narirutin, were found to be unique to artichoke heads, this represents the first report of these compounds in the edible portion of this plant.
Abstract: Artichoke leaf is an herbal medicine known for a long time. A systematic antioxidant activity-directed fractionation procedure was used to purify antioxidative components from the aqueous methanol extractions of artichoke heads and leaves in this study. Seven active polyphenolic compounds were purified from artichoke, and structural elucidation of each was achieved using MS and NMR. Two of these compounds, apigenin-7-rutinoside and narirutin, were found to be unique to artichoke heads, this represents the first report of these compounds in the edible portion of this plant. The contents of these antioxidants and total phenols in dried artichoke samples from leaves and immature and mature heads of three varieties, Imperial Star, Green Globe, and Violet, were then analyzed and compared by colorimetric and validated HPLC methods. Significant differences by variety and plant organ were observed.
418 citations
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TL;DR: The flavonol compounds identified in the petals of C. ternatea differed from those reported in previous studies, and were characterized as kaempferol, quercetin, and myricetin 3-neohesperidosides, 3-rutinosides, and 3-glucosides in the same tissue.
358 citations