Abstract
α-Tocopherol was identified as the main antioxidant in hexane extracts of leaves of sixteen Mediterranean plant species. The α-tocopherol content was determined by a two-step procedure involving column and gas chromatography with α-tocopherol acetate as internal standard. The tocopherol content of the extracts was in the range of 0.0–4.7%, and that of the dry leaves was 0–846 ppm. The highest α-tocopherol content was found in the leaves of a Mediterranean oak,Quercus ilex. The antioxidative activity, which was previously investigated, was correlated with the α-tocopherol content. Correlation coefficients were 0.947 and 0.904 for extracts and leaves, respectively.
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Chevolleau, S., Mallet, J.F., Debal, A. et al. Antioxidant activity of mediterranean plant leaves: Occurrence and antioxidative importance of α-tocopherol. J Am Oil Chem Soc 70, 807–809 (1993). https://doi.org/10.1007/BF02542606
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DOI: https://doi.org/10.1007/BF02542606