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International Journal of Health and Pharmaceutical Medicine, 2020, 1(4); doi: 10.38007/IJHPM.2020.010405.

Determination of Peanut Allergen Protein in Food by Double Antibody Sandwich ELISA


Jiaxuan Qin

Corresponding Author:
Jiaxuan Qin

Hunan University of Chinese Medicine, Hunan, China


Allergic diseases, such as allergic asthma and food allergies, are common and frequently-occurring diseases in the clinic. They are listed by the World Health Organization as one of the three major diseases to be prevented and controlled in the 21st century 10% ~ 30%. Among them, peanut as a major food allergen can cause severe food allergic reactions including anaphylactic shock and allergic death. The purpose of this article is to determine the peanut allergen protein content in food to solve the problem that different allergic patients may respond to different peanut allergen protein components. The double antibody sandwich ELISA method is used to determine the peanut allergen protein component in food. Detection of peanut allergens in imported and exported foods and prevention of food allergic diseases caused by peanuts provide a technical basis. By extracting total peanut protein, immunizing mice to prepare a polyclonal antibody against peanut total protein, coating the enzyme-labeled plate with the antibody, and labeling the polyclonal antibody with biotin, thereby establishing a double-poly antibody sandwich ELISA method, and then making peanut total protein The standard product was tested for the sensitivity of the method, and at the same time, 15 kinds of foods were tested for the content of peanut protein. The research results show that the developed dual-antibody sandwich ELISA method has specificity for detecting peanut allergen protein components in food, and the minimum detection limit is 8ng / mL, and the standard curve is linear in the range of 8ng / mL ~ 125 ng / mL; The test results of 13 kinds of foods are consistent with the contents of the food allergen label, and the test results of 2 kinds of unknown foods are all positive.


Double Antibody Sandwich Method, Peanut Allergen, Food Allergy, Polyclonal Antibody

Cite This Paper

Jiaxuan Qin. Determination of Peanut Allergen Protein in Food by Double Antibody Sandwich ELISA. International Journal of Health and Pharmaceutical Medicine (2020), Vol. 1, Issue 4: 51-63. https://doi.org/10.38007/IJHPM.2020.010405.


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