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Antioxidant property and Acetylcholinesterase inhibitory activity by Tea Polyphenolics Grown in different Agricultural Practices

Author Affiliations

  • 1Agricultural and Food Engineering Department IIT Kharagpur, WB, India
  • 2Agricultural and Food Engineering Department IIT Kharagpur, WB, India
  • 3 School of Medical Science and Technology IIT Kharagpur, WB, India
  • 4Quality Control Section), Food Corporation of India, Regional Office (W.B.), Kolkata-700016, WB, India

Res. J. Recent Sci., Volume 5, Issue (ISC-2015), Pages 90-94, -----Select----,2 (2016)


Antioxidant capacity of Camellia sinensis (tea) variety TV25 extract grown in different agricultural practices in plain land of IIT Kharagpur’s Agricultural and Food Engineering department were studied for free radical scavenging activities by DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS (2,2’-azino-bis-(3- ethylbenzothiazoline)-6-sulfonic acid) and FRAP (Ferric Reducing Antioxidant Potential) assays. DPPH, FRAP and ABTS assays showed an increase in amount of total phenolicscontent in addition to increase in magnitude of free radical scavenging activities whenethanolic extracts of organically grown tea is studied. The DPPH assay showed free radical scavenging activity values 75.3 for vermicompost+vermiwash, 68.0 for vermicompost, 44.9for Inorganic fertilizer and 58.7 in control in 300µg/ml tea extract concentration. Significant acetylcholinesterase (AChE)-inhibitory activity potential found in ethanolic extract with the AChE enzyme activity 0.000612 U in control, 0.00812 U in Inorganic fertilizer treatment, 0.00018 in vermicompost and 0.00015 in vermicompost + vermiwash fertilizer treatment management practices.


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