Identification of allergen encoding sequences in a novel food ingredient from Moringa oleifera leaves
2023
D'Auria, Giovanni | Nitride, Chiara | Nicolai, Maria Adalgisa | Mamone, Gianfranco | Montesano, Domenico | Mills, E.N Clare | Ferranti, Pasquale
Alternative sources of edible proteins are required to feed the world’s growing population, such as Moringa oleifera leaves, a protein source with a balanced amino acid composition. Since Moringa leaf proteins is a novel food in the EU and UK, an assessment of their potential allergenicity of is required. Proteins from Moringa leaf powder were characterised using traditional proteomic approaches. The proteins identified were evaluated for their allergenic potential using in-silico tools. The main proteins identified belonged to photosynthetic and metabolic pathways. In-silico analysis of the leaf proteome identified moritides as potential allergens by homology with a latex allergen implicated in fruit-latex syndrome. This analysis also identified a nsLTP, a major panallergen in food. The presence of these putative allergens was confirmed by de-novo sequencing. Our study allowed identification of putative allergens, Morintides and nsLTP. Further in-vitro and in-vivo investigations are required to confirm their allergenic potential.
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