&lt;i&gt;In Vitro&lt;/i&gt; Antioxidant Studies on the Benzyl Tetra Isoquinoline Alkaloid Berberine

Shirwaikar, Annie; Rajendran, K.; Punitha, I.S.R.

doi:10.1248/bpb.29.1906

Cited by 292 publications

(184 citation statements)

References 24 publications

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“…Lipid peroxidation inhibition was determined by Shirwaikar et al, [22] . Ascorbic acid and trolox was used for comparison.…”

Section: Reducing Power and Lipid Peroxidation Inhibitionmentioning

confidence: 99%

Phytochemistry, Antioxidant, and Lipid Peroxidation Inhibition of the Essential Oils ofLavandula OfficinalisL. in Iran

Miri

2018

International Journal of Food Properties

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The aim of present study was to evaluation the antioxidant potential of Lavandula officinalis on the basis of the chemical compositions of oils obtained by hydrodistillation. In the case of L.officinalis, thirteen compounds were identified representing the 96.53% of the total oil. The major constituents of the oil were described as α-pinene (20.14%), camphor (14.36%), menthol (32.51%) and 1,8-cineole (20.14%). The oils were also subjected to screening for their possible antioxidant activity by using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assays. %). 1,8-Cineole and menthol showed appreciable antioxidant activity in DPPH test. Antioxidant activity guided fractionation of the oil was carried out by The TLC-bioautography screening and fractionation resulted in the separation of the main antioxidant compound which were identified as 1,8-cineole (48%) and menthol (39%).

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“…Lipid peroxidation inhibition was determined by Shirwaikar et al, [22] . Ascorbic acid and trolox was used for comparison.…”

Section: Reducing Power and Lipid Peroxidation Inhibitionmentioning

confidence: 99%

Phytochemistry, Antioxidant, and Lipid Peroxidation Inhibition of the Essential Oils ofLavandula OfficinalisL. in Iran

Miri

2018

International Journal of Food Properties

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“…ABTS also forms a relatively stable free radical, which decolorizes in its nonradical form [41]. The spectrophotometric analysis of ABTS zþ scavenging activity was determined according to the method of Re and co-workers [42].…”

Section: Abts Radical Cation Decolorization Assaymentioning

confidence: 99%

In vitroantioxidant activity of silymarin

Köksal

Gülçın

Beyza

et al. 2009

Journal of Enzyme Inhibition and Medicinal Chemistry

197

100

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Silymarin, a known standardized extract obtained from seeds of Silybum marianum is widely used in treatment of several diseases of varying origin. In the present paper, we clarified the antioxidant activity of silymarin by employing various in vitro antioxidant assay such as 1,1-diphenyl-2-picryl-hydrazyl free radical (DPPH·) scavenging, 2,2 0 -azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging activity, total antioxidant activity determination by ferric thiocyanate, total reducing ability determination by Fe 3þ 2 Fe 2þ transformation method and Cuprac assay, superoxide anion radical scavenging by riboflavin/methionine/illuminate system, hydrogen peroxide scavenging and ferrous ions (Fe 2þ ) chelating activities. Silymarin inhibited 82.7% lipid peroxidation of linoleic acid emulsion at 30 mg/mL concentration; butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), a-tocopherol and trolox indicated inhibition of 83.3, 82.1, 68.1 and 81.3% on peroxidation of linoleic acid emulsion at the same concentration, respectively. In addition, silymarin had an effective DPPH· scavenging, ABTS zþ scavenging, superoxide anion radical scavenging, hydrogen peroxide scavenging, ferric ions (Fe 3þ ) reducing power by Fe 3þ 2 Fe 2þ transformation, cupric ions (Cu 2þ ) reducing ability by Cuprac method, and ferrous ions (Fe 2þ ) chelating activities. Also, BHA, BHT, a-tocopherol and trolox, were used as the reference antioxidant and radical scavenger compounds. Moreover, this study, which clarifies antioxidant mechanism of silymarin, brings new information on the antioxidant properties of silymarin. According to the present study, silymarin had effective in vitro antioxidant and radical scavenging activity. It could be used in the pharmacological and food industry because of its antioxidant properties.

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“…The relative abilities of antioxidants to scavenge ABTS radical cation (ABTS •+ ) were measured by comparison with the antioxidant potency of standard amounts of trolox (6-hydroxy-2, 5, 7, 8-tetramethyl chroman-2-carboxylic acid) following the method of Shirwaikar et al, 22 ABTS •+ was prepared by a reaction between 5 mL of 0.0192 g of ABTS…”

Section: Antioxidant Activity Abts Radical Scavenging Activitymentioning

confidence: 99%

Antioxidant Activity of Some Nigerian Medicinal Plants Used in Malaria Treatment

Owolabi¹,

Ukpo²,

Oribayo³

et al. 2018

TJNPR

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<i>In Vitro</i> Antioxidant Studies on the Benzyl Tetra Isoquinoline Alkaloid Berberine

Cited by 292 publications

References 24 publications

Phytochemistry, Antioxidant, and Lipid Peroxidation Inhibition of the Essential Oils ofLavandula OfficinalisL. in Iran

Phytochemistry, Antioxidant, and Lipid Peroxidation Inhibition of the Essential Oils ofLavandula OfficinalisL. in Iran

In vitroantioxidant activity of silymarin

Antioxidant Activity of Some Nigerian Medicinal Plants Used in Malaria Treatment

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