Pseudoporphyria following self-medication with chlorophyll.

Two cases of pseudoporphyria are described in which the clinical features of porphyria cutanea tarda occurred in the absence of abnormalities in porphyrin metabolism. Both patients presented with skin fragility and bullae on the dorsal aspect of the hands. The patients consumed a commercial liquid chlorophyll drink in which we detected fluorescent compounds with characteristics typical of previously described chlorophyll derived photosensitisers.

Review about olive oil characterization using high-field nuclear magnetic resonance.

In the last years Nuclear Magnetic Resonance (NMR) spectroscopy has found many applications in food analysis. Here, we present a review of the most significant results we have obtained in the olive oil characterization using NMR techniques in combination with multivariate statistical methods.