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| Assay Time | |
| Detection Method | |
| Product Type | |
| Sample Type(s) | Biological, agriculture, food, etc |
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Overview
For quantitative determination of starch and evaluation of drug effects on starch metabolism. The assay uses OD570nm, or FL530/585nm for signal readout. Compatible sample input includes Biological, agriculture, food, etc. Typical stated assay timing is 30 min.
Key elements and design rationale
- Readout format: OD570nm, or FL530/585nm supports plate-based signal acquisition and consistent comparison across matched samples.
- Sample compatibility: The stated sample scope includes Biological, agriculture, food, etc, which is useful when aligning matrix type with calibration and control design.
- Analytical range context: The supplied specifications include a stated detection limit of 2 µg/mL for interpreting low-signal samples.
Available format information for this listing includes 100 Tests.
Biological background
This product is centered on measurement of starch 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
STARCH, chemical formula (C6H10O5)n, is a polysaccharide carbohydrate consisting of a large number of glucose units joined together by glycosidic bonds. All plant seeds and tubers contain starch present in the form of amylose and amylopectin. Starch is the most consumed polysaccharide in the human diet. Some starches are digested very quickly and cause a rapid and large rise in blood sugar. Others are digested more slowly, and some starch, called resistant starch, is not digested in the small intestine at all and thus causes little or no blood sugar rise. Simple, direct, and automation-ready procedures for measuring starch concentrations find wide applications in research and drug discovery. BioAssay Systems starch uses a single Working Reagent that combines the enzymatic breakdown of starch and the detection of glucose in one step. The color intensity of the reaction product at 570 nm or fluorescence intensity at λex/em = 530/585 nm is directly proportional to the starch concentration in the sample. This simple convenient assay is carried out at room temperature and takes only 30 min.
Detection method
Colorimetric (OD 570 nm) or Fluorescent (FL 530/585 nm).
Detection limit and analytical sensitivity
Reported detection limit: 2 µg/mL.
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 description supports intervention-focused study designs in which researchers compare baseline and perturbed conditions.
- Short assay timing and plate compatibility support time-course or repeated-measure collection plans when handling is kept consistent.
Common research applications
- Quantify starch in biological, agriculture, food by OD570 nm, or FL530/585 nm readout.
- Compare treatment or phenotype groups using matched biological, agriculture, food handling.
- Monitor time-course or pre/post changes in biological, agriculture, food 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.
What is the principle of the starch assay?
Starch is first broken down into glucose molecules by α-amylase and amyloglucosidase. Next, glucose is converted to glucuronic acid and H2O2 by the enzyme glucose oxidase. Finally, H2O2 and ADHP are converted to the pink colored product resorufin and water by horse radish peroxidase.
What is the difference between soluble and resistant starch?
Soluble starch is starch that is soluble when heated to 60°C. Resistant starch does not dissolve.
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.
An invasive beetle-fungus complex is maintained by fungal nutritional-compensation mediated by bacterial volatiles
Liu, F., et al. (2020). An invasive beetle-fungus complex is maintained by fungal nutritional-compensation mediated by bacterial volatiles. The ISME Journal, 14(11), 2829-2842. Assay: Starch in phloem medium.
Synthetic glycolate metabolism pathways stimulate crop growth and productivity in the field
South, P. F., Cavanagh, A. P., Liu, H. W., & Ort, D. R. (2019). Synthetic glycolate metabolism pathways stimulate crop growth and productivity in the field. Science, 363(6422), eaat9077. Assay: Starch in plant seed.
U
Ort, D. R., South, P. F., & Walker, B. (2018). U.S. Patent Application No. 15/913,395. Assay: Starch in Nicotiana tabacum leaf.
Long-term impacts of invasive herbivores on tree physiology, growth, and phenology: A whole-tree perspective
Wilson, C. M. (2016). Long-term impacts of invasive herbivores on tree physiology, growth, and phenology: A whole-tree perspective. Assay: Starch in hemlock root.
Comparison of CO(2) and bicarbonate as inorganic carbon sources for triacylglycerol and starch accumulation in Chlamydomonas reinhardtii
Gardner RD et al (2013). Comparison of CO(2) and bicarbonate as inorganic carbon sources for triacylglycerol and starch accumulation in Chlamydomonas reinhardtii. Biotechnol Bioeng. 110(1):87-96. Assay: Starch in algae Chlamydomonas reinhardtii.
Direct production of organic acids from starch by cell surface-engineered Corynebacterium glutamicum in anaerobic conditions
Tsuge, Y., Tateno, T., Sasaki, K., Hasunuma, T., Tanaka, T., & Kondo, A. (2013). Direct production of organic acids from starch by cell surface-engineered Corynebacterium glutamicum in anaerobic conditions. AMB Express 3(1): 72. Assay: Starch in Corynebacterium glutamicum cell culture.
Boriboonkaset T et al (2012) Expression levels of some starch metabolism related genes in flag leaf of two contrasting r
Boriboonkaset T et al (2012) Expression levels of some starch metabolism related genes in flag leaf of two contrasting rice genotypes exposed to salt stress. Aust. J. Crop Sci. 6(11):1579-1586. Assay: Starch in plant rice leaf.
Boriboonkaset T et al (2012) Expression levels of some starch metabolism related genes in flag leaf of two contrasting r
Boriboonkaset T et al (2012) Expression levels of some starch metabolism related genes in flag leaf of two contrasting rice genotypes exposed to salt stress. Aust. J. Crop Sci. 6(11):1579-1586. Assay: Starch in Plant Rice leaf.
Zebeli Q et al (2011) Intraruminal administration of Megasphaera elsdenii modulated rumen fermentation profile in mid-la
Zebeli Q et al (2011) Intraruminal administration of Megasphaera elsdenii modulated rumen fermentation profile in mid-lactation dairy cows. J Dairy Res 13:1-10. Assay: Starch in plant cow feed.
Iqbal S et al (2009) Feeding barley grain steeped in lactic acid modulates rumen fermentation patterns and increases mil
Iqbal S et al (2009) Feeding barley grain steeped in lactic acid modulates rumen fermentation patterns and increases milk fat content in dairy cows. J Dairy Res 92(12):6023-32. Assay: Starch in food grain starch.