Journal ArticleDOI
Antioxidant activity and phenolic compounds of ginger (Zingiber officinale Rosc.) determined by HPLC-MS/MS
Hatice Tohma,İlhami Gülçin,İlhami Gülçin,Ercan Bursal,Ahmet C. Gören,Saleh Alwasel,Ekrem Köksal +6 more
TLDR
In this article, the authors evaluated the antioxidant properties of ginger (Zingiber officinale Rosc.) based on three parameters: the antioxidant capacity, total phenolic and flavonoid content as well as identification of phenolic acids of water extract (WEG) and ethanol extract (EEG) of ginger.Abstract:
Oxidative stress related diseases often arise from over production of free radicals and reactive oxygen/nitrogen species. The prevention of these diseases could be possible with the use of natural antioxidant plants that could be promising as therapeutic candidates. Since antioxidant properties of a species could be stem from phenolic compounds, it is, therefore, important to evaluate antioxidant and total/individual phenolic and flavonoid content. For this purpose, we evaluated antioxidant properties of ginger (Zingiber officinale Rosc.) based on three parameters: the antioxidant capacity, total phenolic and flavonoid content as well as identification of phenolic acids of water extract (WEG) and ethanol extract (EEG) of ginger. For antioxidant capacity, we performed FRAP, CUPRAC assay, Fe2+ chelating ability, DPPH and DMPD radical scavenging activities. Also, total phenolic and flavonoid contents in both extracts were also measured via Folin Ciocalteu’s method. For identification of phenolic acids, HPLC-MS/MS method was performed. The results showed that EEG had generally better antioxidant activity than WEG in all assays. HPLC-MS/MS analysis showed that there are at least eight different phenolic acids found in ginger, among which pyrogallol p-hydroxybenzoic acid, ferulic acid and p-coumaric acid were more abundant in both extracts. This study clearly showed that ginger extracts demonstrated effective antioxidant properties and their consumption may reduce or delay the progression of diseases that oxidative stress take place due to lack of antioxidant supplementation.read more
Citations
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Antioxidants and antioxidant methods: an updated overview
TL;DR: Antioxidants had a growing interest owing to their protective roles in food and pharmaceutical products against oxidative deterioration and in the body and against oxidative stress-mediated pathological processes as discussed by the authors, and many studies evaluating the antioxidant activity of various samples of research interest have been conducted.
Journal ArticleDOI
Antioxidant and anticholinergic properties of olivetol
Parham Taslimi,İlhami Gülçin +1 more
Journal ArticleDOI
Novel antioxidant bromophenols with acetylcholinesterase, butyrylcholinesterase and carbonic anhydrase inhibitory actions.
TL;DR: The novel bromophenols demonstrate powerful antioxidant activities when compared to standard antioxidant molecules of α-tocopherol, trolox, butylated hydroxyanisole (BHA), andbutylated hydroxytoluene (BHT).
Journal ArticleDOI
Antioxidant, Antimicrobial and Antiviral Properties of Herbal Materials
Shokoh Parham,Anousheh Zargar Kharazi,Hamid Reza Bakhsheshi-Rad,Hamid Reza Bakhsheshi-Rad,Hadi Nur,Ahmad Fauzi Ismail,Safian Sharif,Seeram Ramakrishna,Filippo Berto +8 more
TL;DR: In this paper, the authors highlight the antibacterial, antiviral, and radical scavenger (antioxidant) properties of herbal materials, including clove, portulaca, tribulus, eryngium, cinnamon, turmeric, ginger, thyme, pennyroyal, mint, fennel, chamomile, burdock, eucalyptus, primrose, lemon balm, mallow, and garlic.
Journal ArticleDOI
Beneficial effects of ginger on prevention of obesity through modulation of gut microbiota in mice
TL;DR: Modulation of the gut microbiota as a result of ginger supplementation has a therapeutic effect on obesity in mice, and anti-obesity and microbiota-modulating effects similar to those observed in the oral ginger-feeding experiment are suggested.
References
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Antioxidant Activities, Total Phenolics and Flavonoids Content in Two Varieties of Malaysia Young Ginger (Zingiber officinale Roscoe)
TL;DR: The medicinal potential of the leaves and young rhizome of Halia Bara is validated and the positive relationship between total phenolics content and antioxidant activities in Zingiber officinale is validated.
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Polyphenol contents and antioxidant activity of lyophilized aqueous extract of propolis from Erzurum, Turkey
TL;DR: The antioxidant properties of lyophilized aqueous extract of propolis (LAEP) from Erzurum province of Turkey is determined and correlated the values with total levels of polyphenolic compounds.
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Antioxidant activity of clove oil – A powerful antioxidant source
TL;DR: In this paper, clove oil was evaluated by employing various in vitro antioxidant assay such as α,α-diphenyl-β-picryl-hydrazyl free radical (DPPH) scavenging, 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS) radical scavenging activity.
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Determination of antioxidant and radical scavenging activity of Basil (Ocimum basilicum L. Family Lamiaceae) assayed by different methodologies.
TL;DR: Experiments revealed that WEB and EEB have an antioxidant effects which are concentration‐dependent, and these various antioxidant activities were compared with BHA, BHT and α‐tocopherol as reference antioxidants.
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Antioxidant Activity of Eugenol: A Structure–Activity Relationship Study
TL;DR: Eugenol had the most powerful antioxidant activity and radical-scavenging activity and this study should prompt further studies of the antioxidant properties of eugenol.