Fig. 2From: Xanthoepocin, a photolabile antibiotic of Penicillium ochrochloron CBS 123823 with high activity against multiresistant gram-positive bacteriaEvolution of the UV–Vis absorption spectrum of xanthoepocin in water. A The sample was kept in the dark. B The sample was irradiated with blue light (413 nm, 5 J cm−2) perpendicularly to the beam of the UV–Vis spectrophotometerBack to article page