total antioxidant activity and total phenolic contents

antioxidant activity and total phenolic content of moringa

Antioxidant activity and total phenolic content of Moringa

Antioxidant activity and total phenolic content of Moringa oleifera leaves in two stages of maturity Plant Foods Hum Nutr . 2009 Dec;64(4):303-11. doi: 10.1007/s11130-009-0141-0.

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antioxidant activity and total phenolic content of selected

Antioxidant activity and total phenolic content of selected

The total phenolic content of aqueous and methanolic extracts of the investigated plant species ranged from 2.8 to 70.3 and from 2.6 to 59.6 mg GAE/g dry weight, respectively, while the total antioxidant capacity ranged from 12.9 to 731 and from 10.1 to 720 μmol TE/g dry weight, respectively.

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antioxidant activity and total phenolic and flavonoids

Antioxidant activity and total phenolic and flavonoids

Results: Total phenolic and flavonoids concentrations varied respectively between 40.7 and 160mg gallic acid equivalents/g and 27.4 and 66.3mg catechin equivalents/g. The DPPH free radical-scavenging activity shows that the antioxidant activity of the flavonoid extracts varied significantly (P<0.001) depending on the type of the organic solvent

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total phenolic content, flavonoid content and antioxidant

Total Phenolic Content, Flavonoid Content and Antioxidant

There was a strong correlation between antioxidant activity with total phenolic (DPPH, R 2 = 0.75; H 2 O 2, R 2 = 0.71) and total flavonoid content (DPPH, R 2 = 0.84; H 2 O 2, R 2 = 0.66). This study demonstrates that these wild edible leafy plants could be a potential source of natural antioxidants.

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total antioxidant activity and phenolic content in selected

Total antioxidant activity and phenolic content in selected

Comparison of antioxidant activity and total phenolic content in fresh and thermally treated vegetables. The findings of this study indicate that each type of vegetable had a different antioxidant activity, contributed by different antioxidant components, such as α-tocopherol, β-carotene, vitamin C, selenium or phenolic compounds.

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antioxidant activity, total phenolic and flavonoid contents

Antioxidant activity, total phenolic and flavonoid contents

Total phenolic and flavonoid contents and antioxidant activity of four Iranian herbs (Lamiaceae) were investigated. The antioxidant activity of methanol extracts of thyme (Thymus daenensis Celak.), Bakhtiari savory (Satureja bachtiarica Bung.), dragonhead (Dracocephalum multicaule Montbr & Auch) …

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antioxidant activity, total phenolics and flavonoids contents

Antioxidant activity, total phenolics and flavonoids contents

In food technology, in vitro antioxidant assays together with total phenolic content may be importance to assess, for example, the best fruit cutting styles (Li et al., 2017), to assess the effects of processing on the stability of phenolic compounds from herbal extracts (Asensio et al., 2017), to evaluate the antioxidant properties of phenolic

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antioxidant activity and total phenolic content of selected

Antioxidant activity and total phenolic content of selected

The total phenolic content of aqueous and methanolic extracts of the investigated plant species ranged from 2.8 to 70.3 and from 2.6 to 59.6 mg GAE/g dry weight, respectively, while the total antioxidant capacity ranged from 12.9 to 731 and from 10.1 to 720 μmol TE/g dry weight, respectively.

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antioxidant activity and total phenolic and flavonoids

Antioxidant activity and total phenolic and flavonoids

Results: Total phenolic and flavonoids concentrations varied respectively between 40.7 and 160mg gallic acid equivalents/g and 27.4 and 66.3mg catechin equivalents/g. The DPPH free radical-scavenging activity shows that the antioxidant activity of the flavonoid extracts varied significantly (P<0.001) depending on the type of the organic solvent

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antioxidant activity, total phenolic and flavonoid contents

Antioxidant activity, total phenolic and flavonoid contents

Total phenolic and flavonoid contents and antioxidant activity of four Iranian herbs (Lamiaceae) were investigated. The antioxidant activity of methanol extracts of thyme (Thymus daenensis Celak.), Bakhtiari savory (Satureja bachtiarica Bung.), dragonhead (Dracocephalum multicaule Montbr & Auch) …

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in vitro antioxidant activity and total phenolic content of

In vitro antioxidant activity and total phenolic content of

Objective: To elucidate the antioxidant activity and total phenolic content (TPC) of ethyl acetate extracts of endophytic fungi isolated from Eugenia jambolana by three different antioxidant assays. Methods: Twenty one different endophytic fungal extracts were screened for presence of various phytochemicals, TPC and in vitro antioxidant activity.

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antioxidant potential, cytotoxic activity and total phenolic

Antioxidant potential, cytotoxic activity and total phenolic

Determination of total phenolic content. The total phenolic content was determined according to the Folin-Ciocalteu method as described by Phang et al . The crude methanolic extract, hexane fraction, ethyl acetate fraction and positive control (BHA and ascorbic acid) were dissolved in methanol while water fraction was dissolved in distilled water.

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comparison of total phenolic content and total antioxidant

Comparison of Total Phenolic Content and Total Antioxidant

31.07 mmol/L, respectively. The total phenolic contents of red wine samples exhibited a good cor- relation (p < 0.01) with antioxidant properties. Keywords Red Wine, Antioxidant Activity, Total Phenolic Content, DPPH, ABTS, FRAP, CUPRAC 1. Introduction

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determination of total content of phenolic compounds and

Determination of total content of phenolic compounds and

The values of content of phenolic substances and total antioxidant activity of the sets of samples correlate very well for all used methods. The very high values of antioxidant activity were found in intensely colored vegetables (red cabbage, red onion, etc.), and the values were very low in watery vegetables such as potato, marrow, and cucumber.

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total phenolic, flavonoid contents, and antioxidant

Total Phenolic, Flavonoid Contents, and Antioxidant

The correlation between total phenolic and flavonoid content and antioxidant activity with the habitat conditions could help to establish foundation for further studies focusing on the development of safer and inexpensive natural antioxidants for their use in therapeutic and pharmaceutical preparations. 2. Methods 2.1.

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antioxidant activity and total phenolic content of some

Antioxidant Activity and Total Phenolic Content of Some

The total flavonoid concentrations, detected using 2% aluminum chloride, varied from 61.82 to 5.6mg quercetin equivalents (QE)=g dry weight. These results suggest that the level of antioxidant activity in these plants varies by a great extent. They also suggest that the phenolic content in these plants provides sub-stantial antioxidant activity.

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total antioxidant activity and phenolic content in selected

Total antioxidant activity and phenolic content in selected

for the determination of total antioxidant activity and phenolic content. 2.2. Determination of total antioxidant activity Antioxidant activity of vegetables extract was mea-sured according to the method described by Amin and Tan (2002). One millilitre of b-carotene solution (0.2 mg/ml chloroform) was pipetted into a round-bottom

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[pdf] total phenolic content and antioxidant activity of

[PDF] Total phenolic content and antioxidant activity of

The total phenolic content (TPC) and related total antioxidant activity (TAA) were investigated via two spectrophotometric methods using a stable 2,2-diphenyl-1-picryhydrazyl radical (DPPH) and Folin-Ciocalteau reagent respectively. Both TPC and related TAA values of tritordeum and wheat were similar but were significantly lower compared to barley.

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(pdf) antioxidant activity and total phenolic and flavonoid

(PDF) Antioxidant Activity and Total Phenolic and Flavonoid

Antioxidant Activity and Total Phenolic and Flavonoid Contents of Hieracium pilosella L. Extracts

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antioxidant activity and total phenolic content of nerium

Antioxidant Activity and Total Phenolic Content of Nerium

total phenolic content and the antioxidant activity of water, methanol, water : methanol and acetone extracts of the leaves and flowers of Nerium oleander by employing various in-vitro methods including the reducing power, total antioxidant capacity and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity. Experimental Chemicals

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[pdf] antioxidant activity and total phenolic and flavonoid

[PDF] Antioxidant Activity and Total Phenolic and Flavonoid

The total flavonoid and phenolic contents as well as extraction yield of the extracts were also investigated to determine their correlation with the antioxidant activity of the extracts. Among all the tested extracts the highest amounts of total phenolic and total flavonoids content were found in methanol extract of in vivo grown plants.

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antioxidant activity and total phenolic content of moringa

Antioxidant Activity and Total Phenolic Content of Moringa

An analysis of the data given in Table 4 reveals that the observed in vitro antioxidant activity of the successive extracts of Moringa oleifera correlates with its phenolic content. Since polyphenols are responsible for the antioxidant activity, the obtained amount of total polyphenols in the extract indicated the extract that it possess a high

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investigation of total phenolic, flavonoid contents and

Investigation of Total Phenolic, Flavonoid Contents and

The mean values of total phenolic contents and flavonoids are 70 mg GAE/g & 119 mg QE/g respectively. Thus, in the present study, the presence of flavonoids and phenolic compounds in the neem leaves extract could be considered responsible for conferring the antioxidant ability. Key-words: Antioxidant Activity, Azadirachta indica, Phytochemical

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