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Product Details
| Cat # +Size | K618-100 |
|---|---|
| Size | 100 assays |
| Detection Method | Fluorescence Absorbance (570 nm) or Fluorescence (Ex/Em 535/587 nm) |
| Species Reactivity | Mammalian |
| Applications | The assay can detect 10 pmol to 10 nmol glucose per assay. |
| Features & Benefits | • Simple procedure; takes ~ 1 hour • Fast and convenient • Kit provides all necessary buffers and reagents for assay of Maltose and Glucose individually in various biological samples |
| Kit Components | • Glucose Assay Buffer • Glucose Probe (Lyophilized) • Dimethylsulfoxide (DMSO, Anhydrous) • α-D-Glucosidase (Lyophilized) • Glucose Enzyme Mix (Lyophilized) • Maltose Standard (100 nmol/µl) |
| Storage Conditions | -20°C |
| Shipping Conditions | Gel Pack |
| USAGE | For Research Use Only! Not For Use in Humans. |
Details
Glucose (C₆H₁₂O₆; FW: 180.16) and Maltose (C₁₂H₂₂O₁₁; FW: 342.3) are the main fuel sources to generate the universal energy molecule ATP. Maltose is the major disaccharide that generated from hydrolysis of starch in food. Maltose contains two glucose units joined by a α-1,4-glycosidic linkage, which can be easily converted to two glucoses by α-D-glucosidase. Glucose oxidase specifically oxidizes free glucose to produce a product that interacts with the glucose probe to generate color and fluorescence. Therefore, glucose or maltose levels in various biological samples (e.g. serum, plasma, body fluids, food, growth medium, etc.) can be easily determined by either colorimetric (spectrophotometry at λ= 570 nm) or fluorometric (Ex/Em = 535/587 nm) methods. The assay can detect 10 pmol to 10 nmol glucose per assay.
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How many types of maltose does this kit measure?
This kit can measure only the disaccharide maltose.
We have questions about Maltose assay kits K628-100 / K618-100. Can Isomaltose be measured? Oursamples contain variety of sugar. Do high concentration of sugar except maltose and glucose interfere with this assay?
If so, is there any suggestions to use these type of samples?
If so, is there any suggestions to use these type of samples?
Yes, you can use either of the kits for maltose / isomaltose assay. Both kits depend on the enzyme α-D-Glucosidase for conversion of maltose to glucose for final measurement. Therefore any sugars which can be converted by this enzyme into glucose units will interfere with the assay. What kind of sugars does your client's sample have?
Can this kit be used with samples like bacteria, plants, drosophila, yeast etc?
We have optimized the kit with mammalian samples. However, theoretically these kits should work with samples from multiple species/sources. Since the optimal conditions depend on the sample type, the protocol has to be be adapted to fit the samples for efficient results. Please refer to this kit's citations to see what kind of samples have been used with this kit other than mammalian samples.
Can we use frozen samples with this assay?
Fresh samples are always preferred over frozen samples. However, frozen samples can also be used, provided, they were frozen right after isolation, were not freeze thawed multiple time (for which we recommend aliquoting the samples before freezing) and have been frozen for relatively short periods.
Can we use a different wavelength than recommended for the final analysis?
It is always recommended to use the exact recommended wavelength for the most efficient results. However, most plate readers have flexibility in their band width of detection in increments of +/- 10 nm. Depending on this flexibility range, you can deviate from the recommended wavelengths within limits.
What is the exact volume of sample required for this assay?
There is no specific volume we can recommend for the amount any sample to be used since it is completely sample concentration and quality based. You have to do a pilot expt with multiple sample volumes to determine the optimal volume which gives a reading within the linear range of the standard curve. Please refer to the citations for this product to see what other clients have used with similar sample types.
Do you have trial sizes of this kit?
Unfortunately, we do not have trial sizes of this kit available. However, if you are based in the US or Canada, we will give you a 10% off list price introductory discount on its purchase price. If you are based out of this area please contact yopur regional BioVision distributor.
What is the shelf life of this kit?
This kit is good for 12 months from the date of shipment in the unopened form when stored at the appropriate temperature and appropriate conditions. After opening and reconstitution, some of the components in this kit are good for 2 months at -20C. Please refer to the datasheet for storage information and shelf life of each of the components.
Why are my standard curve values lower than those shown on the datasheet?
There are multiple factors which influence the signals like the incubation times, room temperature, handling etc. In general, to increase the value of the standards, you can increase the incubation time. As long as the standard curve is linear, it should be fine to use, since all of your samples will also be measured under the same conditions on this curve.
How do I normalize my samples against protein concentration
You can use a protein quantitation assay on the supernatants you get from cell/tissue lysates or with any other liquid sample in the assay buffer.
Can we purchase individual components of this kit?
Yes, you can purchase any of the kit's components without the whole kit. Please refer to the component Cat #s mentioned on the datasheet for ordering.
Can we use an alternate buffer for sample preparation (cell lysis, sample dilutions etc)?
Our assay buffers are optimized for the reactions they are designed for. They not only contain some detergents for efficient lysis of your cells/tissue, but also contain some proprietary components required for the further reactions. Therefore, we highly recommend using the buffers provided in the kit for the best results.
Should I make a standard curve for every expt I do, or is one curve/kit enough?
Yes, I would strongly recommend you to do the standards every time you do the expt. There is always a chance that something was done differently that day and we do not want any conditions to differ between standards and samples.
