Description An antioxidant is a molecule capable of slowing or preventing the oxidation of other molecules. Antioxidants protect the cells from damages by reactive oxygen species which are produced in oxidation reactions in the cell. Antioxidants can be small molecules such as glutathione, vitamins, or macromolecules such as catalase, glutathione peroxidase. As oxidative stress contributes to the development of many diseases including Alzheimers disease, Parkinsons disease, diabetes, rheumatoid arthritis and neurodegeneration, the use of antioxidants in pharmacology is intensively studied. Antioxidants are also widely used as dietary supplements and in industry as preservatives in food, cosmetics, rubber and gasoline. Simple, direct and high-throughput assays for total antioxidant capacity (TAC) find wide applications in research, food industry and drug discovery. Our improved assay measures total antioxidant capacity in which Cu2+ is reduced by antioxidant to Cu+. The resulting Cu+ specifically forms a colored complex with a dye reagent. The color intensity at 570nm is proportional to TAC in the sample.
Key features Sensitive and accurate. Use 20 mL sample. Linear detection range from 1.5 to 1000 mM Trolox equivalents. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 10 min. Can be readily automated as a high-throughput assay for thousands of samples per day.
Applications Direct Assays: serum, plasma, urine, saliva and other biological samples, food and beverages. Drug Discovery/Pharmacology: effects of drugs on TAC.
Storage conditions The kit is shipped at room temperature. Store all components at -20 °C. Shelf life of six months after receipt.