Comparison of major peanut allergens Ara h 1, Ara h 2 and Ara h 3 between peanut cultivars from Côte d’Ivoire and the USA using SDS PAGE and Western Blots
Journal Title: IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) - Year 2017, Vol 12, Issue 1
Abstract
Peanut is commonly consumed in many forms. The ubiquitous presence of peanut in processed food is responsible for an increasing number of allergic reactions due to accidental ingestion. The prevalence of peanut allergy seems to be underestimated in the African population possibly because of the lack of testing and clinical documentation. In this study, a comparison was made between raw and roasted peanut seeds from cultivars of Côte d’Ivoire (ARA-CI) and raw peanut seeds from the cultivar Georgia Green, grown commercially in the USA. The main objective of this study was to identify the protein profile of peanut seeds from Côte d’Ivoire and compare it with the molecular specificities of major allergens of Georgia green seeds from the USA using a combination of two methods, SDS PAGE and Western blots. Peanut protein profiles via SDS PAGE, coupled with Western blots were carried out on two collections of peanut seeds. In the raw peanut seed extracts from Côte d’Ivoire, are visible fingerprints of the major allergenic proteins Ara h 1(63.5 kDa),Ara h 2(17, 20 kDa), and Ara h 3(25,36, 40 and 44 kDa) and an allergenic bands of Ara h 3 of about 36kDa.This provides evidence of the presence of the major allergens in peanut from Côte d’Ivoire, this, a presumption of a high allergenic potency peanut despite a low prevalence of peanut allergy in the country. The presence of a strongly expressed 30 kDa protein, potentially corresponding to a component of Ara h 3 in the roasted sample means that cooking processes could increase the allergenic potency of peanut. This study makes it possible to identify molecular specificity in peanut from Côte d’Ivoire for the development of local screening test adapted to the environment.
Authors and Affiliations
Chiayé Claire Antoinette Yapo-Crezoit, Antony Ananga 2 ,, Francis Yapo, Koffi Konan, Hortense Dodo
Keywords
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