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The food enzyme l-ascorbate: oxygen oxidoreductase (EC 22.214.171.124) is extracted from fruit peels of Cucurbita pepo L. and Cucurbita moschata Duchesne by Nagase (Europa) GmbH. This enzyme is intended to be used in baking and cereal-based processes. Based on maximum use levels recommended for the respective food processes and individual data from the EFSA Comprehensive European Food Consumption Database, dietary exposure to the food enzyme–total organic solids (TOS) was estimated to be up to 5.950 mg TOS/kg body weight per day in European populations. This exposure is in the same order of magnitude for infants and toddlers; but for children, adolescents, adults and the elderly it is one order of magnitude higher than the exposure to the fraction of the fruit peels comparable to the food enzyme–TOS. The Panel, while recognising the order of magnitude of difference in the exposure estimates, considers that any realistic exposure derived from the use of the food enzyme would be considerably lower and likely to be within the range of exposure through a typical diet. The Panel agreed that the requirements for exclusion of toxicological data were met. Amino acid sequence similarity to known allergens was searched and no match was found. The Panel considered that the risk of allergic sensitisation and elicitation reactions upon dietary exposure to this food enzyme cannot be excluded, but are not expected to exceed the likelihood of the allergic reactions following consumption of pumpkin or zucchini per se, which is low. Based on the data provided and the origin of the food enzyme from edible parts of C. pepo L. and C. moschata Duchesne, the Panel considers that the food enzyme l-ascorbate oxidase does not raise safety concerns under the intended conditions of use.
Silano, V., Barat Baviera, J. M., Bolognesi, C., Brüschweiler, B. J., Cocconcelli, P. S., Crebelli, R., … Chesson, A. (2019). Safety evaluation of the food enzyme l-ascorbate oxidase from Cucurbita pepo L. and Cucurbita moschata Duchesne. EFSA Journal, 17(6). https://doi.org/10.2903/j.efsa.2019.5740
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