KF01004 | ORAC Assay Kit | Antioxidant Capacity

235.00555.00 TAX excl.

BQC ORAC Assay Kit is based on the inhibition of fluorescein oxidation by peroxyl radical in the presence of antioxidants. Peroxyl radical (ROO·) is produced by a free radical initiator (AAPH: 2,2’-azobis-2- methylpropanimidamide dihydrochloride) which produces a fluorescent quenching of fluorescein over time. The presence of antioxidants inhibits the free radical damage to fluorescein, resulting in a preservation of the fluorescent signal.

This kit is a powerful tool to measure the antioxidant capacity of biological samples, cell lysates, tissue homogenates, food, and beverages.

Check our blog post about ORAC Data Analysis 

Additional information

Sizes: 100,200 and 400 tests

Expiry date: 1 year

Storage: -20ºC,and 4ºC

Assay time: 100 minutes

Reagents: Reagent A, Reagent B, Reagent C, Reagent D, and Standard (Trolox)

Necessary material: 96 well-plate spectrophotometer

If you need to adapt it for another form of the assay (for example cuvette), contact at info@bioquochem.com

Protocol Booklet

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Safety Data Sheet (SDS)

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  • Narciso JO, and Nyström L. 2020. “Breathing New Life to Ancient Crops: Promoting the Ancient Philippine Grain ‘Kabog Millet’ as an Alternative to Rice.” Foods 9 (12): 1727. https://doi.org/10.3390/foods9121727
  • Narciso JO, and Nyström L. n.d. “Proceedings 2020, 4, x;.” Accessed December 9, 2020. Presented at the 1st International Electronic Conference on Food Science and Functional Foods, 10–25 November 2020; Available online: https://foods_2020.sciforum.net
  • Narciso JO, Nyström L. 2020. “Alternative Grain Crops: Introducing the Kabog Millet from the Philippines as a Functional Food Ingredient”. doi:10.3390/foods_2020-07740
  • Vaccaro, Federica, et al. “Olea europaea leaf extract: antioxidant properties and supplement in human sperm cryopreservation.” JOURNAL OF BIOLOGICAL REGULATORS & HOMEOSTATIC AGENTS 37.11 (2023): 5795-5809


Check the Frequently Asked Questions section here.

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