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Allergic Identification for Ginkgo Kernel Protein in Guinea Pigs
Cai-e Wu,Jian-Ting Yang,Gong-Jian Fan,Ting-Ting Li,Zhen-Xing Tang,Fu-Liang Cao 한국식품과학회 2016 Food Science and Biotechnology Vol.25 No.3
Ginkgo biloba L. can cause allergic reactions when consumed. In this paper, an allergy test to guinea pig was investigated. Guinea pigs were sensitized with 50 mg/mL of ginkgo kernel protein orally on days 1, 3, and 5, and intraperitoneally challenged with 100mg/mL of the protein on day 7 after the last sensitization. The volume of sensitization and challenge was 0.20mL/100 g weight. The results showed the average allergy grade for guinea pigs reached four and the allergy rate was 100%. The immunoglobulin G and E levels in sera were significantly higher than those in the controls. Footpads swelled distinctly, and the passive cutaneous allergy test manifested a positive response. There were inflammatory changes in the lungs and intestines. In conclusion, the present results may indicate that gingko kernel protein has an allergenic capacity.