CheKine™ Micro SDH Assay Kit: Your Buyer's Guide for Polyol Pathway and Liver Function Research

The 30-Second Verdict

Sorbitol dehydrogenase (SDH)—a key enzyme in polyol metabolism—catalyzes the NAD⁺-dependent oxidation of sorbitol to fructose, playing critical roles in glucose homeostasis, osmotic regulation, and disease pathogenesis[reference:20]. Its activity is a pivotal biomarker for liver injury (acute hepatitis, cirrhosis), diabetes-related complications (neuropathy, nephropathy), and microbial fermentation processes[reference:21]. Abbkine's CheKine™ Micro Sorbitol Dehydrogenase Assay Kit (KTB3060) delivers robust, sensitive, and straightforward colorimetric SDH activity quantification at $89 for 48 tests/48 standards[reference:22].

Pros

✅ High specificity — optimized enzyme-substrate system and interference-suppressing buffer formulation[reference:23]

✅ Broad sample compatibility — serum, plasma, tissues, cells, plants, and bacteria[reference:24]

✅ Colorimetric readout — compatible with standard microplate readers

✅ Simple, convenient, and rapid — streamlined protocol[reference:25]

✅ Microscale format — minimal sample consumption

✅ Cost-effective — $89 for 48 tests/48 standards[reference:26]

✅ High-throughput — 96-well microplate format

Cons

❌ Requires microplate reader with appropriate absorbance capability

❌ Not for clinical diagnosis (research use only)

❌ Requires careful sample handling to preserve SDH integrity (keep on ice)[reference:27]

Who Should Buy This Kit?

Ideal for:

• Diabetes researchers studying polyol pathway flux in neuropathy, retinopathy, and nephropathy[reference:28]
• Hepatologists assessing liver injury, hepatitis, and cirrhosis[reference:29]
• Plant physiologists investigating stress tolerance and fruit sweetness[reference:30]
• Food scientists optimizing microbial fermentation for sorbitol/fructose conversion[reference:31]
• Microbial biotechnologists working with Candida, Gluconobacter, and other industrial strains[reference:32]
• Labs conducting high-throughput SDH screening

Skip this if:

• You lack a microplate reader
• You need to measure other dehydrogenases (use specific assays instead)

Sample Preparation Tips

• Serum/plasma: Collect in EDTA or heparin tubes; centrifuge at 3,000×g for 15 min at 4°C; dilute 1:5 with Sample Dilution Buffer; avoid hemolyzed samples[reference:33]
• Tissue samples (liver, kidney): Homogenize 50 mg fresh tissue in 1 mL ice-cold Lysis Buffer (supplemented with 1 mM PMSF and 0.1% Triton X-100); keep on ice[reference:34]
• Microbial cultures: Harvest 1×10⁸ cells; lyse via sonication (3×15-second pulses) or enzymatic lysis[reference:35]
• Critical step: Quantify total protein via BCA assay and normalize SDH activity to protein content[reference:36]

The Bottom Line

For researchers investigating SDH in diabetic complications, liver disease, plant stress, or industrial fermentation, KTB3060 delivers the specificity, sensitivity, and affordability ($89/48T) that modern metabolic research demands.

👉 Quantify SDH activity with confidence. View Product