Local plants as potential sources of tannins in Egypt, part. IV (Aceraceae to Flacourtiaceae)

Saleh, Nabiel A.M.; Sherbeiny, A. E. A. El; Sissi, H. I. El

doi:10.1007/bf01100201

Cited by 17 publications

(4 citation statements)

References 20 publications

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“…Catechins and their chemical derivatives are effective antiviral agents (Ide et al, 2016). Chlorogenic acid has many beneficial health, antioxidant, antiinflammatory, anti-diabetic properties (Ahn et al, 2011) and it acts as anti-arthritic agent (Chauhan et al, 2012), and as neuroprotective (Mikami & Yamazawa, 2015) The results obtained here are in agreement with the phenolic compounds identified previously in S. areira and S. molle leaves and twigs (Saleh et al, 1969;Domínguez et al, 1971;Marzouk et al, 2006;Ranilla et al, 2010;Ibrahim & Haggag, 2013;Celaya et al, 2016). In S. areira fruits, only quercetin derivatives, amentoflavone derivatives and colored peonidin glycosides and cyanidin glycosides were previously reported (Graziano et al, 1967;Wannan et al, 1985).…”

Section: Boletín Latinoamericano Y Del Caribe De Plantas Medicinales ...supporting

confidence: 89%

Bioactive phenolic compounds and organic acids in the decoction of fruits and leaves of Schinus areiraL

Celaya¹,

Molina²,

González³

et al. 2022

BLACPMA

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Leaf and fruit decoctions of Schinus areiraL. from northwest Argentina were investigated here. Phenolic compounds and organic acids were analyzed by HPLC. Antioxidant capacity and α-glucosidase inhibition were determined by using in vitrotests. The general toxicity was assessed against Artemia salinanauplii. Hyperoside and 3 O-caffeoylquinic acid in leaf decoctions; gallic acid and catechin in fruit decoction were the major phenolic compounds. Malic and citric acids were the main organic acid quantified in the leaf and fruit decoctions, respectively. Fruit decoction had a relatively important content of shikimic acid, precursor of Tamiflu. Leaf decoction presents a greater richness in bioactive compounds with antiradical activity against DPPH●, O2●-and ●NO radicals. S. areiraleaves and fruits had α-glucosidase inhibitory activity comparable to hyperoside and acarbose. Fruit decoction was not eco-toxic; leaf decoction showed significant eco-toxic activity and could be chosen for the search of other bioactive compounds with pharmacological activity.

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Section: Boletín Latinoamericano Y Del Caribe De Plantas Medicinales ...supporting

confidence: 89%

Bioactive phenolic compounds and organic acids in the decoction of fruits and leaves of Schinus areiraL

Celaya¹,

Molina²,

González³

et al. 2022

BLACPMA

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“…F21-26 (6.1 g), which was purified by elution with toluene-Me2CO (7:1) over a Si gel column, afforded 8,5'-dihydroxy-7,3',4'-trimethoxyflavone [12] (170 mg, 0.0023% w/w). Compound 12 was finally purified by crystallization from MeOH.…”

Section: Resultsmentioning

confidence: 99%

Plant Anticancer Agents, XLVIII. New Cytotoxic Flavonoids from Muntingia calabura Roots

Kaneda¹,

Pezzuto²,

Soejarto³

et al. 1991

J. Nat. Prod.

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From a cytotoxic Et2O-soluble extract of Muntingia calabura roots, twelve new flavonoids were isolated, constituting seven flavans 1-7, three flavones 8, 10, and 12, and two biflavans 9 and 11. The structures of compounds 1-12 were established by the interpretation of spectral data, with the nmr assignments of these constituents being based on 1H-1H COSY, 1H-13C HETCOR, and selective INEPT experiments. This is the first report of the occurrence of 7,8-di-O-substituted flavans, biflavans, and flavones. Most of the isolates demonstrated cytotoxic activity when tested against cultured P-388 cells, with the flavans being more active than the flavones. Furthermore, certain of these structurally related flavonoids exhibited somewhat selective activities when evaluated with a number of human cancer cell lines.

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“…Phytochemical information on the genus is sparse and mostly related to its role as a source of food. Reports include studies on cyclopentenyl fatty acids, tannins, pectin and amino acid composition of D. caffra , and ascorbic acid content of D. hebecarpa . Pharmacological evaluation of Dovyalis species is restricted to a report on antibacterial and antifungal activity of extracts of D. abyssinica leaves …”

mentioning

confidence: 99%

Dovyalicin-Type Spermidine Alkaloids from Dovyalis Species

et al. 2006

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Phytochemical investigations of Dovyalis abyssinica, D. hebecarpa, and D. macrocalyx revealed two new spermidine-type alkaloids, dovyalicin E (3) and dovyalicin F (4), along with the previously described dovyalicin A (1), dovyalicin B (2), and dovyalicin C (5). In addition, a new phenol glucoside, 4-hydroxytremulacin (7), and the new 1,2-cyclohexanediol glucoside 9, as well as the known compounds methyl 1-hydroxy-6-oxocyclohex-2-enecarboxylate (6) and tremulacin (8), were isolated. The structures were established using homo- and heteronuclear two-dimensional NMR experiments and chiroptical methods. At ambient temperature, the N-disubstituted amide 4 exists as a mixture of cis and trans conformers. Variable-temperature (1)H NMR studies showed that time-averaged spectra are obtainable at 348 K, and the activation parameters determined for the rotation about the amide bond were DeltaH++ = 89 +/- 4.6 kJ/mol, DeltaS++ = 65 +/- 14 kJ/mol.K, and DeltaG++(298K) = 70 +/- 4.5 kJ/mol.

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Local plants as potential sources of tannins in Egypt, part. IV (Aceraceae to Flacourtiaceae)

Cited by 17 publications

References 20 publications

Bioactive phenolic compounds and organic acids in the decoction of fruits and leaves of Schinus areiraL

Bioactive phenolic compounds and organic acids in the decoction of fruits and leaves of Schinus areiraL

Plant Anticancer Agents, XLVIII. New Cytotoxic Flavonoids from Muntingia calabura Roots

Dovyalicin-Type Spermidine Alkaloids from Dovyalis Species

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