Isolation of (+)-Catechin from Acacia Catechu (Cutch Tree) by a Convenient Method

Hye, M. A.; Taher, Muhammad; Ali, ME; Zaman, Shahed

doi:10.3329/jsr.v1i2.1635

Cited by 59 publications

(38 citation statements)

References 4 publications

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“…Based on the resonance for C-2 at d C 82.9, strong H-2/H-3 correlations in the COSY experiment, 1 H-NMR, 13 C-NMR, and data in literature, [15] compound 3 was identified as (C)-catechin. This was confirmed by GC-MS, IR, and UV-Vis spectroscopy.…”

Section: Structure Elucidationmentioning

confidence: 99%

Structure and antioxidant activity of phenolic compounds isolated from the edible fruits and stem bark ofHarpephyllum caffrum

Moodley

Koorbanally

Islam

et al. 2014

Journal of Environmental Science and Health, Part B

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Antioxidant activity in edible fruits is an important characteristic in the choice of fruits for human consumption, and has profound influence on nutrition and health. Two pharmacologically active triterpenoids, β-sitosterol and lupeol, and the powerful flavan-3-ol antioxidant, (+)-catechin, were isolated from the edible fruits of Harpephyllum caffrum while a mixture of cardanols, an alkyl p-coumaric acid ester, and (+)-catechin were isolated from the stem bark. This is the first report of these compounds being isolated from this plant. The antioxidant capacity of (+)-catechin was higher than the other isolated compounds as well as the known antioxidant, ascorbic acid.

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Section: Structure Elucidationmentioning

confidence: 99%

Structure and antioxidant activity of phenolic compounds isolated from the edible fruits and stem bark ofHarpephyllum caffrum

Moodley

Koorbanally

Islam

et al. 2014

Journal of Environmental Science and Health, Part B

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“…Based on the above mentioned data, and based on the comparison with the data of literature [6], compound 1 was confirmed to be (+)-catechin. Catechin has been isolated from Camellia sinensis [7] and known to possess a variety of biological activities, such as anti-inflammatory [8], antimicrobial [9] and antioxidant [10].…”

Section: Resultsmentioning

confidence: 64%

Flavonoids Isolated From the Flowers of Camellia Chrysantha

Nguyen

Pham

Cam

et al. 2019

JST

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Camellia chrysantha (the golden camellia, golden tea) is a species of evergreen shrub or small tree belonging to the family Theaceae. The flowers and the leaves of this plant are used as tea and drank for its health benefits. The aim of this study was to investigate the chemical constituents of the flowers of Camellia chrysantha. Five flavonoids were isolated from the flowers of Camellia chrysantha (Theaceae), including (+)-catechin (1), (-)-epicatechin (2), quercetin (3), quercetin-3-O-methyl ether (4) and kaempferol (5). Their chemical structures were elucidated by spectroscopic data analysis and by comparison with those reported in the literature. Among five compounds, compounds 4 was isolated for the first time from this species.

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“…It was proposed to be 7‐O‐rhamno‐acetylglucosyl diosmetin structure, science standards of these compounds were not available, we depend on the literature data of a compound with a near structure and defined as 7‐O‐(acetyl)‐pento‐hexosyl‐diosmetin (Ferreres and others 2006). Flavan 3‐ols in n ‐butanol fraction, according to their UV and mass spectral data, were identified as: catechin 7 , epicatechin 8 , epicatechin gallate 11, and epigallocatechin gallate 13 (Hye and others 2009; Hasslauer and others 2010; Long‐Ze and Harnly, 2010). The loss of 162 u (hexosyl radical) and 180 u (hexose + water) facilitated the identification of compound 9 and was confirmed by its UV spectra as ferulyl hexose (Ferreres and others 2006).…”

Section: Resultsmentioning

confidence: 99%

A Profile of Bioactive Compounds of Rumex vesicarius L.

El‐Hawary¹,

Sokkar²,

Ali³

et al. 2011

Journal of Food Science

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The present study was designed to investigate the bioactive compounds in extracts of Rumex vesicarius L. (Polygonaceae), a wild edible herb growing in Egypt. Ethyl acetate and n-butanol fractions of leaves of R. vesicarius were conducted by HPLC-PDA-MS/MS-ESI in the negative mode to analyze phenolics content. Results revealed the identification of 13 phenolic compounds: 8-C-glucosyl-apigenin, 8-C-glucosyl-luteolin, 6-C-hexosyl-quercetin, 3-O-rutinosyl-quercetin, 7-O-rhamno-hexosyl-diosmetin, 7-O-rhamno-acetylhexosyl-diosmetin, catechin, epicatechin, ferulohexoside, 6-C-glucosyl-naringenin, epicatechin gallate, 6-C-glucosyl-catechin, and epigallocatechin gallate. Quantification of the identified compounds revealed that 6-C-glucosyl-naringenin was the major compound. Also, qualitative and quantitative analysis of the hydro-ethanolic extract of leaves was carried out for ascorbic acid, α-tocopherol, β-carotene. The essential oil as well as lipids analysis of saponifiable and unsaponifiable matters. The biochemical studies were conducted to evaluate the antioxidant and hepatoprotective potential of roots (REE), leaves (LEE), and fruits (FEE) ethanolic extracts of R. vesicarius (100 mg/kg b.wt., p.o., each) against hepatotoxicity induced by CCl(4) (0.5 mL/kg b.wt., p.o., 3 times a week) compared with silymarin (50 mg/kg b.wt., p.o.) as standard drug. The results confirmed that coadministration of the tested extracts or silymarin with CCl(4) for 4 wk exhibited a marked hepatoprotective activity, attributed to their antioxidant potential, membrane stabilizing effect, and antifibrogenic activities. Practical Application: Investigation of the effect of hommad as a safe hepatoprotective diet that prospectively directs the attention to a valuable therapeutic natural herb rich in bioactive constituents.

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Isolation of (+)-Catechin from Acacia Catechu (Cutch Tree) by a Convenient Method

Cited by 59 publications

References 4 publications

Structure and antioxidant activity of phenolic compounds isolated from the edible fruits and stem bark ofHarpephyllum caffrum

Structure and antioxidant activity of phenolic compounds isolated from the edible fruits and stem bark ofHarpephyllum caffrum

Flavonoids Isolated From the Flowers of Camellia Chrysantha

A Profile of Bioactive Compounds of Rumex vesicarius L.

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