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Updated: Aug 12, 2026

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Spectrophotometric Screening for Potential Inhibitors of Cytosolic Glutathione S-Transferases
Published on: October 10, 2020
Studies on curcumin and curcuminoids. IX: Investigation of the photobiological activity of curcumin using bacterial
H H Tønnesen1, H de Vries, J Karlsen
1Institute of Pharmacy, University of Oslo, Norway.
Journal of Pharmaceutical Sciences
|May 1, 1987
Abstract:
The dye curcumin is a natural, nontoxic food constituent. On irradiation with visible light, curcumin proves to be phototoxic for Salmonella typhimurium and Escherichia coli, even at very low concentrations. The observed phototoxicity makes curcumin a potential photosensitizing drug which might find application in the phototherapy of, for example, psoriasis, cancer, and bacterial and viral diseases.

