Dear Kumar

Check the following links on antioxidant activity for possible answers and other information on antioxidant activity.

https://www.researchgate.net/post/What_are_the_techniques_used_to_check_the_antioxidant_potential_of_an_isolated_compound

https://www.researchgate.net/post/How_can_we_check_the_effects_of_antioxidant_on_tissue

https://www.researchgate.net/post/which_compound_whether_natural_or_synthetic_is_consider_as_a_super-antioxidant

https://www.researchgate.net/post/which_plant_is_commonly_used_as_a_source_of_natural_antioxidants_in_traditional_medicine

https://www.researchgate.net/post/How_we_can_measure_free_radical_scavenger_activity_of_a_plant_extract

https://www.researchgate.net/post/How_can_I_calculate_antioxidant_activity_for_plants?tpr_view=8dbf4a0d-f474-4ae8-9afd-0927626f6b52_1

https://www.researchgate.net/post/what_is_the_control_and_blank_in_the_total_antioxidant_assay_or_phoshphomolybdate_assay_for_plant_extract

https://www.researchgate.net/post/How_to_determine_antioxidant_activity_of_pomegranate_seed_oil_by_FRAP_and_DPPH_method

https://www.researchgate.net/post/What_is_the_unit_of_antioxidant_enzymes_CAT_POD_SOD_APX_assay_in_wheat_seed

https://www.researchgate.net/post/what_means_by_an_antioxidant_assay