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Record number 496845
Title Influence of processing and in vitro digestion on the allergic cross-reactivity of three mealworm species
Author(s) Broekhoven, Sarah Van; Bastiaan-Net, Shanna; Jong, N.W. De; Wichers, H.J.
Source Food Chemistry 196 (2016). - ISSN 0308-8146 - p. 1075 - 1083.
DOI http://dx.doi.org/10.1016/j.foodchem.2015.10.033
Department(s) Laboratory of Entomology
FBR Consumer Science & Health
VLAG
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Crustaceans - Food allergy - Food processing - House dust mite - Ige cross-reactivity - In vitro digestion - Mealworms
Abstract

Edible insects are currently being evaluated as an alternative and more sustainable protein source for humans. The introduction of new food sources can lead to development of novel allergies. Because in the Western world, insects are unlikely to be consumed raw, it is important to know how processing and in vitro digestion might influence their allergenicity. Three edible mealworm species (Tenebrio molitor, Zophobas atratus and Alphitobius diaperinus) subjected to processing and in vitro digestion were analysed for IgE cross-reactivity. Immunoblot and MALDI-MS/MS analyses revealed that IgE from crustaceans or House dust mite (HDM) allergic patients showed cross-reactivity to mealworm tropomyosin or α-amylase, hexamerin 1B precursor and muscle myosin, respectively. Heat processing as well as in vitro digestion did diminish, but not eliminate, HDM or tropomyosin IgE cross-reactivity. Results show that individuals allergic to HDM or crustaceans might be at risk when consuming mealworms, even after heat processing.

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