Detection and quantitation of resveratrol in tomato fruit (Lycopersicon esculentum Mill.) |
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Authors: | Ragab Amr S Van Fleet Jennifer Jankowski Boris Park Joon-Hyun Bobzin Steven C |
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Institution: | Ceres, Inc., 1535 Rancho Conejo Boulevard, Thousand Oaks, California 91320, USA. |
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Abstract: | Resveratrol is a stilbene phytoalexin well-known for its presence in grape, wine, and peanut. As a result of its antioxidant and chemopreventative properties, it has gained much attention as a functional food ingredient. A gas chromatography-mass spectrometry method for the detection of resveratrol, its 3-glucopyranoside piceid, and the cis isomers of both compounds has been developed and used to quantitate the levels of these compounds in the skin of commercially available tomato fruit (Lycopersicon esculentum Mill.). The resveratrol concentration remains relatively stable during fruit maturation, reaching a maximum concentration in the skin of 18.4 +/- 1.6 microg/g dry weight at 4 weeks postbreaker. No stilbenes were detected in the flesh of tomato fruit. |
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