CheKine™ Micro Plant PPO Activity Assay Kit: Unlocking Plant Stress Responses and Food Quality Control

PPO: The Enzyme Behind Plant Browning, Stress Response, and Defense
Polyphenol oxidase (PPO) is a core enzyme in plant physiology, mediating critical processes including wound response, pathogen resistance, and enzymatic browning[reference:124]. Accurate quantification of PPO activity is indispensable for studies in plant stress biology, post-harvest technology, and crop improvement[reference:125].
Traditional assay methods are often limited by low specificity, high sample volume requirements, and susceptibility to interference from secondary plant metabolites[reference:126].
Plant-Optimized Microscale Design
The CheKine™ Micro Plant PPO Activity Assay Kit (KTB1140) addresses these limitations through a micro-scale design optimized for plant samples, leveraging a highly specific detection mechanism that minimizes cross-reactivity[reference:127]. This specificity is particularly valuable in complex plant matrices, where non-target compounds can otherwise confound results[reference:128].
Performance and Affordability
| Parameter | Specification |
|---|---|
| Price | $49 for 48 tests[reference:129] |
| Sample Types | Plant tissues, leaves, fruits, roots[reference:130] |
| Readout | Colorimetric (kinetic)[reference:131] |
| Substrate System | C₆H₆O₂-based[reference:132] |
Versatility Across Plant Research
- Drought stress: Investigating drought-induced changes in PPO activity in cereal crops[reference:133]
- Post-harvest: Screening fruit varieties for reduced browning potential[reference:134]
- Plant-microbe interactions: Understanding defense responses[reference:135]
- Antioxidant capacity: Correlating PPO activity with lipid metabolism[reference:136]
Cited in Advanced Science (IF: 14.3+)[reference:137].
Why Choose KTB1140?
Unlike premium kits that command excessive prices or budget alternatives that sacrifice accuracy, KTB1140 offers a pragmatic solution that meets the real-world demands of research labs—delivering actionable data without overburdening resources[reference:138].
📎 Reference: CheKine™ Micro Plant Polyphenol Oxidase (PPO) Activity Assay Kit (KTB1140)