Veratox® for Almond
Item No. 8440
- Accurate and easy-to-use
- Cost effective microwell format
- High specificity
PRODUCT DETAILS
Veratox® for Almond Allergen is used for the quantitative analysis of almond residue in food products such as cookies, crackers, chocolate bars, ice cream, beverages and cereals. Can also be used to screen environmental swabs.
Specifications
| Analyte | Almond, Tree Nuts |
| Brand | Veratox® |
| Limit of Detection | <1 ppm almond |
| Package Dimensions | 10.00 IN x 8.00 IN x 2.50 IN |
| Package Weight | 1.00 LB |
| Platform | ELISA |
| Quantity per Package | 38 tests |
| Range of Quantitation | 2.50 ppm almond - 25.00 ppm almond |
| Result Type | Quantitative |
- 48 antibody-coated microwells
- 48 red-marked transfer wells
- 5 yellow-labeled bottles of 0, 2.5, 5, 10, 25 ppm almond controls
- 2 blue-labeled bottles of enzyme-labeled antibody conjugate
- 1 green-labeled bottle of K-Blue® Substrate
- 1 red-labeled bottle of Red Stop solution
- Foil pouch of 10 mM PBS dry powder extraction solvent. Each pouch is enough to prepare 1 L in distilled or deionized water (pH 7.4)
- 40 mL of 10 mM PBS-Tween washing reagent in a wide mouth bottle. Each bottle is enough to prepare 1 L in distilled or deionized water (pH 7.4)
- 50 g of extraction additive in a specimen cup
- Plastic scoop to measure extraction additive
- Allergen Extraction Kit (Neogen® item 8429)
- 20 disposable plastic extraction bottles
- 20 sample collection tubes (12 x 75 mm) with caps
- Allergen Environmental Swabbing Kit (Neogen item 8432S)
- 100 sterile swabs
- 100 dropper tips
- Shaker water bath capable of maintaining 60 ± 1°C with clamps to hold 250 mL disposable plastic bottles
- Whatman #4 filters or equivalent (Neogen item 9429)
- Centrifuge (optional)
- Pipettor, adjustable 50–200 µL (Neogen item 9276)
- Pipettor, 12-channel (Neogen item 9273)
- Pipette tips (Neogen item 9410, 9407, 9417)
- Timer (Neogen item 9426)
- Microwell reader with a 650 nm filter (Neogen item 9303)
- 1 L bottle to prepare washing solution (Neogen item 9472)
- 1 L heat safe bottle to prepare extract solution (Neogen item 9472)
- Paper towels or equivalent absorbent material
- Microwell holder (Neogen item 9402)
- Waterproof marker
- Wash bottle (Neogen item 9400)
- Distilled or deionized water
- 3 reagent boats for 12-channel pipettor (Neogen item 9435)
- Graduated cylinder capable of measuring 125 mL (Neogen item 9368)
- Scale capable of weighing 5 ± 0.1 g (Neogen item 9427)
Veratox for Almond Allergen is a sandwich enzyme-linked immunosorbent assay (S-ELISA). Almond residues are extracted from samples with a buffered salt solution (PBS) by shaking in a heated water bath, followed by centrifugation or filtration. Extracted almond residue is sampled and added to antibody-coated wells (capture antibody) where it binds to the antibody during an incubation. Any unbound almond residue is washed away and a second antibody (detector antibody), which is enzyme labeled, is added. The detector antibody binds to the already bound almond residue. After a second wash, the substrate is added. Color develops as a result of the presence of bound detector antibody. Red Stop reagent is added and the color of the resulting solution is observed. The test is read in a microwell reader to yield optical densities. The optical densities of the controls form a standard curve, and the sample optical densities are plotted against the curve to calculate the exact concentration of almond residue.
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