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Antioxidant activities and total phenolic and flavonoid contents in three indigenous medicinal vegetables of north-east India.
Nat Prod Commun. 2012 Aug; 7(8):1021-3.NP

Abstract

Antioxidant activities of the n-hexane, ethyl acetate and methanol extracts of three indigenous leafy vegetables of north east India viz., Polygonum microcephallum, Oxalis corniculata and Portulaca oleraceae were measured by spectroscopic methods using the 1, 1-diphenyl-2-picrylhydrazyl (DPPH*) radical assay and xanthine/xanthine oxidase assay. The total phenolic and total flavonoid contents of each extract were also measured to assess their effect on the antioxidant activity. It was observed that the methanol extracts of all the species showed the highest antioxidant activities and high values for total phenolic and flavonoid contents. A strong correlation between the antioxidant activities and the total phenolic content was observed for the three vegetables. It indicates that phenolics are one of the main components responsible for the antioxidant behavior of vegetables. HPLC analysis showed the presence of a number of identified phenolic compounds.

Authors+Show Affiliations

Handique JG
Synthetic Organic and Natural Products Laboratory, Department of Chemistry, Dibrugarh University, Dibrugarh-786004, India. jghandique@rediffmail.com
Boruah MP
No affiliation info available
Kalita D
No affiliation info available

MeSH

AntioxidantsFlavonoidsFree Radical ScavengersIndiaMagnoliopsidaPhenolsPlant ExtractsPlants, MedicinalVegetables

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22978220

Citation

Handique, Jyotirekha G., et al. "Antioxidant Activities and Total Phenolic and Flavonoid Contents in Three Indigenous Medicinal Vegetables of North-east India." Natural Product Communications, vol. 7, no. 8, 2012, pp. 1021-3.
Handique JG, Boruah MP, Kalita D. Antioxidant activities and total phenolic and flavonoid contents in three indigenous medicinal vegetables of north-east India. Nat Prod Commun. 2012;7(8):1021-3.
Handique, J. G., Boruah, M. P., & Kalita, D. (2012). Antioxidant activities and total phenolic and flavonoid contents in three indigenous medicinal vegetables of north-east India. Natural Product Communications, 7(8), 1021-3.
Handique JG, Boruah MP, Kalita D. Antioxidant Activities and Total Phenolic and Flavonoid Contents in Three Indigenous Medicinal Vegetables of North-east India. Nat Prod Commun. 2012;7(8):1021-3. PubMed PMID: 22978220.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antioxidant activities and total phenolic and flavonoid contents in three indigenous medicinal vegetables of north-east India. AU - Handique,Jyotirekha G, AU - Boruah,Manas Pratim, AU - Kalita,Dipika, PY - 2012/9/18/entrez PY - 2012/9/18/pubmed PY - 2012/10/12/medline SP - 1021 EP - 3 JF - Natural product communications JO - Nat Prod Commun VL - 7 IS - 8 N2 - Antioxidant activities of the n-hexane, ethyl acetate and methanol extracts of three indigenous leafy vegetables of north east India viz., Polygonum microcephallum, Oxalis corniculata and Portulaca oleraceae were measured by spectroscopic methods using the 1, 1-diphenyl-2-picrylhydrazyl (DPPH*) radical assay and xanthine/xanthine oxidase assay. The total phenolic and total flavonoid contents of each extract were also measured to assess their effect on the antioxidant activity. It was observed that the methanol extracts of all the species showed the highest antioxidant activities and high values for total phenolic and flavonoid contents. A strong correlation between the antioxidant activities and the total phenolic content was observed for the three vegetables. It indicates that phenolics are one of the main components responsible for the antioxidant behavior of vegetables. HPLC analysis showed the presence of a number of identified phenolic compounds. SN - 1934-578X UR - https://www.unboundmedicine.com/medline/citation/22978220/Antioxidant_activities_and_total_phenolic_and_flavonoid_contents_in_three_indigenous_medicinal_vegetables_of_north_east_India_ L2 - https://medlineplus.gov/antioxidants.html DB - PRIME DP - Unbound Medicine ER -