Total phenols, tannins and condensed tannins in different parts of Rumex hastatus

Makkar, H.P.S.; Singh, Birbal; Vats, Swati; Sood, Richa

doi:10.1016/0960-8524(93)90147-4

Cited by 18 publications

(12 citation statements)

References 7 publications

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“…Total flavonoids were determined spectrophotometrically and calculated as rutin according to Samatha et al [12]. Total phenolic according to Makkar et al [13], Total tannins according to Ali et al [14]. Finally saponin and alkaloid content were determined according to Honerlagen and Tretter [15].…”

Section: 42mentioning

confidence: 99%

Investigation of Bioactive Constituents and Biological Activities of Different Fractions From Herniaria Hemistemon J.GAY

Elhagali

Abozeed

elnaser

et al. 2019

Al-Azhar Bulletin of Science

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This study was carried out the phytochemical screening and evaluate antibacterial, antifungal and antioxidants effects of petroleum ether (40-60 °C), diethyl ether, chloroform, ethyl acetate, ethanol 96% and ethanol 70% fractions obtained from the aerial part of Herniaria hemostimon J. Gay. Phytochemical analysis showed the presence of terpenoids, steroids, flavonoids, alkaloids, tannins and saponins in different fractions the plant. Quantitative concentration of phenols, flavonoids, alkaloids, tannins and saponins were detected. HPLC analysis of H. hemostimon identified 21 flavonoids and 21 phenolic compounds. Successive fractionation has been carried out where Di-(2-ethylhexyl) phthalate (DEHP and protocatechuic acid were isolated and identified using FT-IR, 1 H-NMR and MS spectroscopic. Furthermore, the antimicrobial activity of successive extract of H. hemistemon against 5 bacterial strains and 2 fungal and yeast strains carried out by the disc diffusion method. The diethyl ether and ethyl acetate fraction showed the highest activity against all the tested bacterial and fungal strains. The ethyl acetate fraction showed the highest antioxidant activity. This study suggested that the bioactivities of H. hemistemona can be used as a source of medicinal compounds due to there ' s significant antioxidant and antimicrobial activities.

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Section: 42mentioning

confidence: 99%

Investigation of Bioactive Constituents and Biological Activities of Different Fractions From Herniaria Hemistemon J.GAY

Elhagali

Abozeed

elnaser

et al. 2019

Al-Azhar Bulletin of Science

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“…Kalisz et al analyzed the polyphenol content of two cultivars (Victoria and Red Malinowy) in the spring and autumn seasons, recording the highest value of flavan-3-ols for Red Malinowy cultivar from spring harvest (195.98 mg•g −1 d.w.) and the lowest for Victoria cv from autumn harvest (86.57 mg•g −1 d.w.) [13]. Studies on other vegetable species belonging to the family Polygonaceae were performed on Rumex acetosa [19][20][21][22], Rumex scutatus [23], Rumex crispus [24,25], Rumex japonicus [26], Rumex hastatus [27][28][29], Rumex ecklonianus [30], Rumex tingitanus [31], Rumex sanguineus [32], Rumex acetosella [33], Rumex maderensis [34], and Rumex obtusifolius [35], but no determinations relevant to polyphenols content and composition were performed.…”

Section: Introductionmentioning

confidence: 99%

Dynamic of Phenolic Compounds, Antioxidant Activity, and Yield of Rhubarb under Chemical, Organic and Biological Fertilization

Cojocaru

Vlase

Munteanu

et al. 2020

Plants

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In recent years, rhubarb is being increasingly cultivated, as it provides early yields when the vegetables supply to market is deficient and shows high levels of both polyphenols content and antioxidant capacity in edible parts. In 2017, we investigated crops of the rhubarb cultivar Victoria to the fifth year of production. Comparisons were performed between three root phase fertilizations—chemical (NPK 16-16-16®), organic (Orgevit®), and biological (Micoseeds MB®)—plus an unfertilized control. The determinations of polyphenols, the antioxidant capacity, and the yield indicators from the stalks (petioles) of rhubarb were made at each out of the 10 harvests carried out. The highest yield (59.16 t·ha−1) was recorded under the chemical fertilization. The total polyphenols content and antioxidant capacity varied widely from 533.86 mg GAE·g−1 d.w. and 136.86 mmol Trolox·g−1 d.w., respectively in the unfertilized control at the last harvest, up to 3966.56 mg GAE·g−1 d.w. and 1953.97 mmol Trolox·g−1 d.w. respectively under the organic fertilization at the four harvest. From the results of our investigation, it can be inferred that the chemical fertilization was the most effective in terms of yield, whereas the sustainable nutritional management based on organic fertilizer supply led to higher antioxidant compounds and activity.

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“…The total phenolics content of the sample solutions were determined by Folin-ciocalteu Method as described by Makkar et al [15] In separate test tubes, 0.10 mL of 500 mg/L (in ethanol) sample solution was combined with 2.80 mL of 10% Na 2 CO 3 and 0.10 mL of 2N Folin-Ciocalteu reagent. The mixture was then set aside for 40 mins before the absorbance was measured at 725 nm.…”

Section: Total Phenolics Content (Tpc) Assaymentioning

confidence: 99%

Antioxidant and Toxicity Assay-guided Isolation of Herniarin from Equisetum debile Roxb. (Equisetaceae)

Ang¹,

Peteros²,

Uy³

2019

AJBLS

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Introduction: Bioassay-guided isolation of the bioactive components from Equisetum debile Roxb. ("sumbak") was conducted. Objectives: This study aimed to isolate and characterize bioactive components from E. debile. Materials and Methods: Ethanolic extract of whole plant sample of E. debile was sequentially partitioned to obtain the bioactive choroform-soluble (EdC) partition. EdC was purified via chromatographic techniques. Fractions obtained after purification were analyzed for cytotoxic and antioxidant properties. Brine shrimp lethality as well as in vitro antioxidant assays such as 2,2-diphenyl-1-picrylhydrazyl (DPPH) Radical Scavenging, Total Antioxidant Capacity and Total Phenolics Content assays were carried out. One-dimensional (1D) and two-dimensional NMR and LC-MS analyses were conducted to elucidate structure of the isolated compound. Results and Discussion: The whole plant sample of E. debile afforded herniarin. Conclusion: The present findings imply that E. debile can be a potential source of bioactive components.

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Total phenols, tannins and condensed tannins in different parts of Rumex hastatus

Cited by 18 publications

References 7 publications

Investigation of Bioactive Constituents and Biological Activities of Different Fractions From Herniaria Hemistemon J.GAY

Investigation of Bioactive Constituents and Biological Activities of Different Fractions From Herniaria Hemistemon J.GAY

Dynamic of Phenolic Compounds, Antioxidant Activity, and Yield of Rhubarb under Chemical, Organic and Biological Fertilization

Antioxidant and Toxicity Assay-guided Isolation of Herniarin from Equisetum debile Roxb. (Equisetaceae)

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