In this paper, we show that the exposure of proteins to ultraviolet light within a spectrometer results in photosensitization-induced oxidative alterations of proteins based on the generation of N-formylkynurenine (NFK) from tryptophan, and the subsequent generation (from NFK) of other photosensitizers capable of giving rise to reactive oxygen species that progressively damage proteins and reduce secondary structural content, alongside other effects.

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