Antioxidant Assays

Antioxidants play a pivotal role in food preservation by restricting the oxidation processes and promoting healthier body conditions. Many dietary supplements, nutraceuticals and functional food ingredients contain antioxidants that need to monitor for marketing regulations. Manufacturers, growers and suppliers need accurate and detailed information about the antioxidant capacity of their products and raw ingredients. They are evaluated by different assays based on hydrogen atom transfer (HAT), single electron transfer (ET), reducing power, and metal chelating, among others. Tamilnadu Test House offers a variety of antioxidant tests abiding by international standards. In each test, a specific ROS is generated and used to challenge the sample. TNTH offer a contract testing service also.


Tamilnadu test House provides the following test services for its valuable clients.

List of Antioxidant assays:
  • ORAC Family for comprehensive antioxidant testing: ORAC, ORAC 6.0 (replacing ORAC 5.0)
  • FRAP (Ferric Reducing Antioxidant Power)
  • DPPH (DPPH Radical Scavenging Capacity)
  • TEAC (Trlox Equivalency Antioxidant Capacity)
  • Total Phenol (aka, Toal Phenolics, Total Polyphenol)
  • Total Anthocyanidin
  • Total Proanthocyanidins (PACs) (aka, Toal Condensed Tannis, DMAC assay, BL-DMAC assay)
  • Carotenoids
  • Phenolic Acids Catechins
  • Organic Acids
  • Flavonoids
  • Saponin
  • L-DOPA Content
  • Chlorophyll , Xanthophylls
  • Phycocyanin
  • Lipoxygenase
  • Lipid Peroxide
  • Alphatocopherol
  • in vitro Enzymatic Antioxidants
  • Superoxide Dismutase (SOD), catalase, Glutathione (GSH, GSSG), Glutathione Peroxidase (GPx), Glutathione Reductase
  • Pytonutrient Profiling

Tamilnadu Test House Private Limited offers a wide range of Bio Technology testing services


Bio Assay & Screening


Confocal Microscopy

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Custom Cell Protein (HCP)


Cell Biology, Protein Biology & Immunology

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