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CS0790

Sigma-Aldrich

Antioxidant Assay Kit

sufficient for 200 tests

Synonym(s):

Oxidative Stress Detection Kit

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About This Item

UNSPSC Code:
12161503
NACRES:
NA.84

usage

sufficient for 200 tests

Quality Level

detection method

colorimetric

shipped in

wet ice

storage temp.

2-8°C

General description

Free radicals or reactive oxygen species (ROS) are produced during biochemical redox reactions as part of normal physiological cell metabolism (protection from infectious organisms) and as a response to environmental factors such as UV light, cigarette smoke, environmental pollutants, and g-radiation. Once formed, ROS attack cellular components causing damage to lipids, proteins, and DNA, which can initiate numerous diseases, including cancer, atherosclerosis, rheumatoid arthritis, diabetes, liver damage, and central nervous system disorders.
In the presence of antioxidants the radical cation is suppressed to an extent dependent on the activity of the antioxidant and the color intensity is decreased proportionally. Trolox, a water-soluble vitamin E analogue, serves as a standard or a control antioxidant.

Application

Antioxidant assay kit provides all of the reagents required for an efficient measurement of the total antioxidant capacity of plasma, serum, urine, saliva, cells, and tissue lysates. It has also been used to measure the radical cation (2,2′-azino-di-[3-ethylbenzthiazoline sulphonate]) (ABTS+) scavenging capacity.
It was tested on A431 and CHO cell lysates; rat brain, liver, and kidney lysates; human plasma, serum, urine, and saliva.

Suitability

Suitable for the measurement of the total antioxidant capacity of plasma, serum, urine, saliva, cells, and tissue lysates

Principle

The principle of the antioxidant assay is formation of a ferryl myoglobin radical from metmyoglobin and hydrogen peroxide, which oxidizes the ABTS (2,2¢-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) to produce a radical cation, ABTS·+ , a soluble chromogen that is green in color and can be determined spectrophotometrically at 405 nm.

Preparation Note

Reagents are to be prepared with ultrapure water.

Reconstitution

Myoglobin Solutions are to be stored at -20C after reconstitution.
Trolox Working Solution is to be stored at -20C after reconstitution.
ABTS Substrate Solution is to be stored at 4C for 2 weeks or at -20C for 1 month.

Legal Information

Kit Components Only

Product No.
Description

  • Assay Buffer 10X 30 mL

  • Stop Solution 20 mL

  • Hydrogen Peroxide, 3% solution 1 mL

  • Myoglobin from horse heart 2 x 1

  • (±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (Trolox®) 2 x 1

  • ABTS, 10 mg tablets 4 tab

  • Phosphate-Citrate Buffer, pH 5 4 tab

related product

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Description
Pricing

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Dave C Francisco et al.
Free radical biology & medicine, 44(4), 558-569 (2007-11-17)
Oxidatively induced stress and DNA damage have been associated with various human pathophysiological conditions, including cancer and aging. Complex DNA damage such as double-strand breaks (DSBs) and non-DSB bistranded oxidatively induced clustered DNA lesions (OCDL) (two or more DNA lesions
Reversal of hepatic steatosis by omega?3 fatty acids measured non?invasively by 1H?magnetic resonance spectroscopy in a rat model.
Marsman HA, et al.
Journal of Gastroenterology and Hepatology, 26(2), 356-363 (2011)
Use of sourdough fermentation and pseudo-cereals and leguminous flours for the making of a functional bread enriched of γ-aminobutyric acid (GABA).
Coda R, et al.
International Journal of Food Microbiology, 137(2), 236-245 (2010)
Grit Kasper et al.
Stem cells (Dayton, Ohio), 27(6), 1288-1297 (2009-06-06)
Progenitor cells such as mesenchymal stem cells (MSCs) have elicited great hopes for therapeutic augmentation of physiological regeneration processes, e.g., for bone fracture healing. However, regeneration potential decreases with age, which raises questions about the efficiency of autologous approaches in
Effect of sourdough fermentation on stabilisation, and chemical and nutritional characteristics of wheat germ.
Rizzello CG, et al.
Food Chemistry, 119(3), 1079-1089 (2010)

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