Artigo Acesso aberto Produção Nacional Revisado por pares

Effects of industrial cashew nut processing on anacardic acid content and allergen recognition by IgE

2017; Elsevier BV; Volume: 240; Linguagem: Inglês

10.1016/j.foodchem.2017.07.146

ISSN

1873-7072

Autores

Christopher P. Mattison, Jéfferson Malveira Cavalcante, Maria Izabel Gallão, Edy Sousa de Brito,

Tópico(s)

Ginkgo biloba and Cashew Applications

Resumo

Cashew nuts are important both nutritionally and industrially, but can also cause food allergies in some individuals. The present study aimed to assess the effect(s) of industrial processing on anacardic acids and allergens present in cashew nuts. Sample analyses were performed using liquid chromatography coupled with mass spectrometry, SDS-PAGE and immunoassay. The anacardic acid concentration ranged from 6.2 to 82.6mg/g during processing, and this variation was attributed to cashew nut shell liquid incorporation during storage and humidification. Dehydrated and selected samples did not significantly differ in anacardic acid content, having values similar to the raw sample. SDS-PAGE and immunoassay analysis with rabbit polyclonal sera and human IgE indicated only minor differences in protein solubility and antibody binding following processing steps. The findings indicate that appreciable amounts of anacardic acid remain in processed nuts, and that changes to cashew allergens during industrial processing may only mildly affect antibody recognition.

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