CheKine™ Micro Hydroxyl Free Radical Scavenging Capacity Assay Kit: The Gold Standard for •OH Scavenging Studies
The Hydroxyl Radical: The Most Damaging ROS
The hydroxyl radical (•OH) is the most reactive and damaging of all reactive oxygen species. It reacts indiscriminately with lipids, proteins, and DNA at diffusion-limited rates. Measuring •OH scavenging capacity is therefore essential for evaluating the antioxidant potential of compounds, extracts, and biological samples.
Why Abbkine KTB1091 Stands Out
| Feature | Abbkine KTB1091 | Traditional •OH Scavenging Assays |
|---|---|---|
| Detection Method | Salicylic Acid Method (520 nm)[reference:107] | Variable; often complex |
| Sample Types | Animal/plant tissues, serum, plasma, cells, bacteria, supernatant, juice, honey, urine[reference:108] | Limited compatibility |
| Sensitivity | High; detects •OH scavenging capacity accurately[reference:109] | Variable |
| Protocol | Simple, convenient[reference:110] | Often multi-step, time-consuming |
| Storage | 12 months at 4°C[reference:111] | Shorter shelf life |
| Publications | 2 citations[reference:112] | Fewer |
The Fenton Reaction Principle
The assay is based on the well-established Fenton reaction: H₂O₂/Fe²⁺ generates hydroxyl free radicals[reference:113]. Salicylic acid effectively captures the generated •OH and reacts to produce 2,3-dihydroxybenzoic acid, which has a maximum absorption peak at 520 nm[reference:114]. When •OH scavenging substances are present, the 520 nm absorbance decreases[reference:115]. The absorbance value directly reflects the sample's hydroxyl free radical scavenging capacity[reference:116].
Applications Across Research Fields
- Antioxidant research — evaluating natural products and synthetic compounds
- Food science — assessing antioxidant capacity of foods, juices, honey[reference:117]
- Pharmaceutical research — screening drug candidates for ROS-scavenging activity
- Nutritional science — studying dietary antioxidants
- Plant science — evaluating stress-induced antioxidant responses
- Environmental toxicology — assessing oxidative stress from pollutants
What Sets This Kit Apart
Simple, sensitive, rapid detection method[reference:118]
Comprehensive sample compatibility — from tissues to honey[reference:119]
Detailed protocols — includes sample preparation, result calculation methods, and comprehensive results display[reference:120]
12-month shelf life at 4°C[reference:121]
Critical Tips for Success
- Do a pre-experiment with 1-2 samples to ensure accuracy[reference:122]
- If OD exceeds 1.3, dilute the sample[reference:123]
- Hemolyzed or dark-colored samples require a self-control (add diluted sample + Extraction Buffer, record at 340 nm, subtract from measurement well)[reference:124]
- Serum, plasma, and tissue samples are recommended to be diluted 5 times with Extraction Buffer[reference:125]
- Reagents I and II are stored in sealed condition[reference:126]
The Bottom Line
Abbkine CheKine™ Micro Hydroxyl Free Radical Scavenging Capacity Assay Kit is specially developed for sensitive and accurate •OH scavenging capacity detection[reference:127]. Whether you're screening natural products, evaluating functional foods, or studying oxidative stress mechanisms, KTB1091 delivers reliable, publication-ready data.
👉 Measure •OH scavenging capacity with precision. View Product
