CheKine™ Micro Tannin Assay Kit: Your Buyer‘s Guide for Reliable Tannin Quantification
The 30-Second Verdict
Tannins are abundant phenolic compounds in plants that play critical roles in plant defense, food quality, and nutraceutical applications. Abbkine’s CheKine™ Micro Tannin Assay Kit (KTB1541) is a colorimetric microplate-based tool designed for rapid, precise determination of tannin content in plant tissues, fruit juices, honey, and other liquid samples[reference:56]. With a publication in Frontiers in Immunology (IF: 2.9) on tannin-rich fermented strawberry vines improving growth performance in Hu sheep, this kit has proven its reliability in applied research[reference:57].
Pros
✅ Colorimetric detection — based on phosphomolybdate/Folin-Ciocalteu-type chemistry[reference:58]
✅ Broad sample compatibility — plant tissues, fruit juices, honey, and other liquid samples[reference:59]
✅ Wide detection range — 0.0156–1 mg/mL[reference:60][reference:61]
✅ High sensitivity — 0.0078 mg/mL[reference:62]
✅ Microscale format — 48T and 96T options available[reference:63]
✅ Validated in publications — cited in a Frontiers in Immunology study[reference:64]
✅ Long shelf life — 6 months at 4°C[reference:65]
Cons
❌ Requires 4°C storage, protected from light
❌ Not for clinical diagnosis (research use only)
❌ Phosphomolybdate-based methods can have interference from non-tannin phenolics
Who Should Buy This Kit?
Ideal for:
- Plant biologists studying secondary metabolism and defense compounds
- Food scientists conducting quality control of wines, teas, juices, and honey
- Nutraceutical researchers evaluating tannin content in functional foods
- Livestock and animal nutrition researchers (as validated in sheep studies)[reference:66]
- Agricultural researchers studying plant stress responses
- Labs working with limited or precious samples
Skip this if:
- You lack a microplate reader
- You need to distinguish between hydrolyzable and condensed tannins (use specialized assays)
How It Works
The kit is based on the well-established phosphomolybdate/Folin-Ciocalteu-type reaction: tannins’ abundant phenolic hydroxyl groups reduce the reagent to a distinctive blue molybdenum complex with a strong absorption peak around ~760 nm[reference:67]. The color intensity is proportional to tannin concentration, and content is calculated using a standard curve[reference:68].
Critical Tips for Success
- Perform a pre-experiment with 2-3 samples with large expected differences before formal testing
- Each sample requires a control well
- If OD value exceeds the standard curve range, dilute the sample appropriately
- Do not mix components from different batch numbers or manufacturers
- Avoid bubbles when mixing or reconstituting components
The Bottom Line
For researchers working at the intersection of plant secondary metabolism, food/beverage quality control, and nutraceutical R&D[reference:69], KTB1541 offers the first microplate format that actually respects your plant and food samples[reference:70]—delivering reliable, reproducible tannin quantification without the pipetting marathons of traditional methods[reference:71].
👉 Quantify tannins with confidence. View Product
