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info@allelelifesciences.comAllergens are mainly proteins that trigger the immune system of allergic individuals. Food allergies are typically IgE-mediated, which means that the body produces large amounts of antibodies that specifically target the proteins of certain food products.
There is no specific trouble induced by food allergens. These items have different reactions in different bodies. Allergic reactions could cause immediate wheezing, vomiting, hives, stomach upset, etc.
- Agriculture Food Crops , Cereals containing gluten, Oat, Barley, Rye, Spelt, Kamut, Wheat
- Dry Fruits
- Eggs
- Fish
- Soybeans
- Milk , Casein and/or Beta-lactoglobulin
- Peanuts and other nuts including almonds, hazelnuts and walnuts
- Sulphur dioxide and sulphites which are used as preservatives in products like sausages and dried fruits
Immunological allergen detection by means of
ELISA :
The ELISA method is the
most common and preferred technique for detecting
food allergens. ELISA methods detect the allergen
protein molecule by binding antibodies to the
allergen. The samples are processed and change color
to confirm the presence of the allergen protein.
PCR-ELISA : PCR-ELISA method, the detection of an allergen does not require gel electrophoresis. The amplified DNA fragment is labeled with biotin or digoxygenin.
Allergen detection
using PCR & real-time PCR:
The detection of allergenic proteins is
performed through the amplification of their
specific DNA fragment in a PCR reaction. The PCR
reaction allows for obtaining qualitative
results. Fluorescence detectors are highly
sensitive detectors best suited for cases where
the compounds are either inherently fluorescent
or have been modified to be so. We may analyze
food allergens by multiplex-PCR (several genes
in single reactions), duplex-PCR, and
HPLC-PNA-PC
Analysis of
Allergens by HPLC :
Analysis of Allergens by Affinity Purification
and HPLC-FLD Detector Fluorescence detectors are
highly sensitive detectors best suited for cases
where the compounds are either inherently
fluorescent.