In vitro antioxidant and antiglycation activity of zingiber zerumbet (wild zin-ger) rhizome extract

Vaghasiya D. Bhavesh, Yogendra Nayak, B. S. Jayashree

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Rhizomes of Zingiber zerumbet (Family: Zingiberaceae) is also known as wild zinger or shampoo zinger. Most of the biological activities reported for this plant are attributed to phenolic contents and volatile principles. Hence, a detailed investigation of antioxidant and antiglycation activities of Zingiber zerumbet rhizome was carried out. The ethyl acetate extract of Zingiber zerumbet rhizome (ZZE) was prepared and tested for phytoconstituents. Antioxi-dant and antiglycation activity of ZZE was determined by standard methods. Upon phytochemical investigations of ZZE showed the presence of phenols, flavonoids and terpenoids. ZZE had a total phenolic content of 331.93±1.23 mg/ml gallic acid equivalent and total flavonoid content of 198±2.65 mg/ml of quercetin equivalent. ZZE also showed a significant total antioxidant activity (86.04±0.98 mg/ml ascorbic acid equivalent). Further, ZZE scav-enged DPPH and ABTS radical with an IC50 of 117.65±1.45 and 78.72±1.12 μg/ml respectively. Similarly, hydroxyl, superoxide, hydrogen peroxide and nitric oxide radicals were scavenged with an IC50 of 39.90±0.77, 185.49±0.97, 144.71±3.75 and 89.87±1.02 μg/ml respectively. The IC50 values in O-phenanthroline (iron-chelating capacity), β-carotene bleaching and lipid peroxidation assays were 189.63±2.21, 317.24±0.34 and 94.45±2.76 μg/ml respec-tively. The observed antioxidant activity can be attributed mainly to the total phenolics and flavonoids present in ZZE. Furthermore, ZZE also demonstrated antiglycation activity in hemoglobin-glucose and BSA-glucose assays, but the activity was not significant when compared to the standards quercetin and aminoguanidine. Results of this study confirm the antioxidant and antiglycation potentials of Zingiber zerumbet rhizomes.

Original languageEnglish
Pages (from-to)482-489
Number of pages8
JournalInternational Journal of Research in Pharmaceutical Sciences
Volume4
Issue number4
Publication statusPublished - 2013

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Rhizome
Antioxidants
Flavonoids
Inhibitory Concentration 50
Quercetin
In Vitro Techniques
Zingiberaceae
Glucose
Gallic Acid
Phenanthrolines
Phenols
Terpenes
Phytochemicals
Carotenoids
Superoxides
Hydroxyl Radical
Hydrogen Peroxide
Lipid Peroxidation
Ascorbic Acid
Nitric Oxide

All Science Journal Classification (ASJC) codes

  • Pharmacology, Toxicology and Pharmaceutics(all)

Cite this

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title = "In vitro antioxidant and antiglycation activity of zingiber zerumbet (wild zin-ger) rhizome extract",
abstract = "Rhizomes of Zingiber zerumbet (Family: Zingiberaceae) is also known as wild zinger or shampoo zinger. Most of the biological activities reported for this plant are attributed to phenolic contents and volatile principles. Hence, a detailed investigation of antioxidant and antiglycation activities of Zingiber zerumbet rhizome was carried out. The ethyl acetate extract of Zingiber zerumbet rhizome (ZZE) was prepared and tested for phytoconstituents. Antioxi-dant and antiglycation activity of ZZE was determined by standard methods. Upon phytochemical investigations of ZZE showed the presence of phenols, flavonoids and terpenoids. ZZE had a total phenolic content of 331.93±1.23 mg/ml gallic acid equivalent and total flavonoid content of 198±2.65 mg/ml of quercetin equivalent. ZZE also showed a significant total antioxidant activity (86.04±0.98 mg/ml ascorbic acid equivalent). Further, ZZE scav-enged DPPH and ABTS radical with an IC50 of 117.65±1.45 and 78.72±1.12 μg/ml respectively. Similarly, hydroxyl, superoxide, hydrogen peroxide and nitric oxide radicals were scavenged with an IC50 of 39.90±0.77, 185.49±0.97, 144.71±3.75 and 89.87±1.02 μg/ml respectively. The IC50 values in O-phenanthroline (iron-chelating capacity), β-carotene bleaching and lipid peroxidation assays were 189.63±2.21, 317.24±0.34 and 94.45±2.76 μg/ml respec-tively. The observed antioxidant activity can be attributed mainly to the total phenolics and flavonoids present in ZZE. Furthermore, ZZE also demonstrated antiglycation activity in hemoglobin-glucose and BSA-glucose assays, but the activity was not significant when compared to the standards quercetin and aminoguanidine. Results of this study confirm the antioxidant and antiglycation potentials of Zingiber zerumbet rhizomes.",
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