| Field | Specification |
|---|---|
| Assay Time | |
| Detection Method | |
| Product Type | |
| Sample Type(s) | Biological, food, beverage, and agricultural products |
| Shipping | |
| Species | |
| Storage |
Overview
For quantitative determination of D-mannitol in biological, food, beverage and agriculture samples. The assay uses OD565nm for signal readout. Compatible sample input includes Biological, food, beverage, and agricultural products. Typical stated assay timing is 30 min.
Key elements and design rationale
- Readout format: OD565nm supports plate-based signal acquisition and consistent comparison across matched samples.
- Sample compatibility: The stated sample scope includes Biological, food, beverage, and agricultural products, which is useful when aligning matrix type with calibration and control design.
- Analytical range context: The supplied specifications include a stated detection limit of 7 µM for interpreting low-signal samples.
- Feature emphasis: Fast and sensitive. Use of 20 µL sample. Linear detection range from 0.007 to 3 mM mannitol in a 96-well plate assay.
Additional feature notes highlight Convenient. The procedure involves adding a single working reagent and reading the absorbance after 30 minutes. Room temperature assay. No 37°C heater is needed; High-throughput. “Add-mix-read” type assay. Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Available format information for this listing includes 100 Tests.
Biological background
This product is centered on measurement of d-mannitol within the matrices described for the assay. In practice, datasets from this type of format are typically interpreted by comparing relative signal, activity, or abundance across matched control and experimental groups rather than relying on a single value in isolation. Careful alignment of sample matrix, incubation window, and calibration strategy is important when comparing results across plates, operators, or study days.
More details
D-MANNITOL(C6H14O6) is a sugar alcohol used in dietary supplements, sweeteners, intestinal permeability tests for leaky gut, etc. It also serves as a coating for hard candies, dried fruits, and chewing gums due to its low ability to attract and hold water molecules. In addition, it is an osmoprotectant for plants and is used clinically in osmotherapy to reduce intracranial pressure.BioAssay Systems D-mannitol assay kit is based on mannitol dehydrogenase catalyzed oxidation of D-mannitol, which generates D-fructose and NADH that reduces a formazan (MTT) dye. The intensity of product color, measured at 565 nm is directly proportional to D-mannitol concentration in the sample.
Detection method
Colorimetric (OD 565 nm).
Detection limit and analytical sensitivity
Reported detection limit: 7 µM.
Procedures and timing
Stated procedure or timing information: 30 min.
Research relevance and current trends
- Plate-based quantification and side-by-side group comparison remain central use cases for this assay format.
- The product notes emphasize multi-sample throughput, making it relevant for screening-oriented and larger batch comparison studies.
- Short assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.
Common research applications
- Quantify d-mannitol in biological, food, beverage by OD565 nm readout.
- Compare treatment or phenotype groups using matched biological, food, beverage handling.
- Monitor time-course or pre/post changes in biological, food, beverage across study conditions.
Interpretation is usually strongest when signal changes are assessed alongside matrix-matched controls, replicate agreement, and the assay's stated analytical window.
Notes for experimental interpretation
- Matrix composition, background signal, and sample handling can influence apparent response; compare like-with-like whenever possible.
- Use appropriate blanks, controls, and replicate wells to distinguish biological differences from plate, reagent, or handling variability.
I don’t have the correct wavelength filter, will the assay still work?
Typically if you are within ± 20 nanometers the assay will still work, but have slightly reduced sensitivity. Some assays have a narrower peak than others, call our tech support for a spectrum to verify.
I don’t have a 96-well plate, will the assay kit work in a 384 well plate, cuvette, etc?
Yes, the assay can be used in any standard plate and cuvette. Simply adjust the total reaction volume to your container. For 384 well use 50 μL, for a cuvette use 500 μL or 1 mL.
Is the mannitol assay kit suitable for biological samples such as blood, urine, etc.?
The mannitol assay kit should be suitable for urine and blood samples as well as other biological samples. Some samples (e.g. cerebrospinal fluid) may contain mannitol under the detection limit (3 μM); however, they should be detectable as long as the concentration is > 3 μM.
How do I prepare the solid & liquid samples?
Solid Samples: chop or grind solid samples. Weigh 200 mg sample and homogenize (vortex or handheld homogenizer) in 800 μL H2O (Sample:H2O = 1 mg: 4 μL). Centrifuge homogenate at 14,000g for 5-10 min. Transfer the clear supernatant into a clean tube. It is prudent to run a pilot test of the sample at different dilutions. Choose a dilution with the readings in the detection range of the standard curve for assays. Most samples can be stored at -80°C if not assayed immediately.
Solid Samples
2
2
Urine or Serum Samples: can be assayed direactly without dilution.
Can I store unused reagents for future use?
Yes, unused reagents can be stored according to the assay protocol. Repeated freeze/thaw cycles of reagents should be avoided. Since Assay Buffer is very light sensitive, always keeps buffer in the dark (amber bottle or tube) as much as possible for long term usage.
Can this manntiol assay kit detect L-Arabitol as well?
Unless the L-Arabitol is > 2M, this kit is unable to detect it.
Do I need to use a standard or standard curve with each assay run?
Yes, it is highly recommended.
For laboratories requiring additional technical capacity, we provide scientific support services including assay execution, method guidance, product sourcing, and customization to align the assay with specific experimental objectives. If you need assistance selecting the appropriate kit configuration, adapting the workflow to your application, or identifying related research services, please click Talk to a Scientist, email support@biohippo.com, or review our Research Services; a member of our scientific team will follow up with recommendations tailored to your study.
Development of an image based technique for assessment of colorectal epithelial integrity and function in an ovine model (Doctoral dissertation)
Szafron, D. (2019). Development of an image based technique for assessment of colorectal epithelial integrity and function in an ovine model (Doctoral dissertation). Assay: D-Mannitol in fish Serum.
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