<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chevolleau, S</style></author><author><style face="normal" font="default" size="100%">Mallet, J F</style></author><author><style face="normal" font="default" size="100%">Debal, A</style></author><author><style face="normal" font="default" size="100%">Ucciani, E</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antioxidant activity of mediterranean plant leaves: Occurrence and antioxidative importance of A-tocopherol</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the American Oil …</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">antioxidant activity</style></keyword><keyword><style  face="normal" font="default" size="100%">hexane extracts</style></keyword><keyword><style  face="normal" font="default" size="100%">Mediterranean plant leaves</style></keyword><keyword><style  face="normal" font="default" size="100%">o-tocopherol</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1993</style></year></dates><volume><style face="normal" font="default" size="100%">70</style></volume><pages><style face="normal" font="default" size="100%">807-809</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">a-Tocopherol was identified as the main antioxidant in hexane extracts of leaves of sixteen Mediterranean plant species. The a-tocopherol content was determined by a two-step procedure involving column and gas chromatog- raphy with a-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 a-tocopherol content was found in the leaves of a Mediterranean oak, Quercus ilex. The antioxidative ac- tivity, which was previously investigated, was correlated with the a-tocopherol content. Correlation coefficients were 0.947 and 0.904 for extracts and leaves, respectively.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chevolleau, S.</style></author><author><style face="normal" font="default" size="100%">Mallet, J. F.</style></author><author><style face="normal" font="default" size="100%">Debal, A.</style></author><author><style face="normal" font="default" size="100%">Ucciani, E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antioxidant activity of mediterranean plant leaves: Occurrence and antioxidative importance of A-tocopherol</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the American Oil …</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">antioxidant activity</style></keyword><keyword><style  face="normal" font="default" size="100%">hexane extracts</style></keyword><keyword><style  face="normal" font="default" size="100%">Mediterranean plant leaves</style></keyword><keyword><style  face="normal" font="default" size="100%">o-tocopherol</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1993</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1993///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.springerlink.com/index/ct659114421h210p.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">70</style></volume><pages><style face="normal" font="default" size="100%">807 - 809</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">a-Tocopherol was identified as the main antioxidant in hexane extracts of leaves of sixteen Mediterranean plant species. The a-tocopherol content was determined by a two-step procedure involving column and gas chromatog- raphy with a-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 a-tocopherol content was found in the leaves of a Mediterranean oak, Quercus ilex. The antioxidative ac- tivity, which was previously investigated, was correlated with the a-tocopherol content. Correlation coefficients were 0.947 and 0.904 for extracts and leaves, respectively.</style></abstract><issue><style face="normal" font="default" size="100%">8</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Chevolleau, S.</style></author><author><style face="normal" font="default" size="100%">Mallet, J. F.</style></author><author><style face="normal" font="default" size="100%">Ucciani, E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antioxidant activity in leaves of some Mediterranean plants</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of the American Oil Chemists' Society</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">antioxidant activity</style></keyword><keyword><style  face="normal" font="default" size="100%">hexane extracts</style></keyword><keyword><style  face="normal" font="default" size="100%">Mediterranean plant leaves</style></keyword><keyword><style  face="normal" font="default" size="100%">methanol extracts</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1992</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1992///</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://www.springerlink.com/index/D172Q4Q176772865.pdf</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">69</style></volume><pages><style face="normal" font="default" size="100%">1269 - 1271</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">{{Hexane and methanol leaf extracts of sixteen Mediter- ranean plant species were obtained by percolation. Higher yields were observed for m e t h a n o l (16.4-47.8%} than for hexane extracts (1.3-13%}. Antioxidant activity of these extracts w a s determined by a rapid spectrophotometric method involving the combined oxidation of beta-carotene and linoleic acid. Leaf extracts were thus characterized by an Antioxidant Activity Coefficient (AAC) ranging from 0 to 1000. Hexane extracts gave m u c h higher A A C values than the corresponding methanol extracts. In both cases, myrtle (Myrtus communis) showed the best antiox- idant effectiveness.</style></abstract><issue><style face="normal" font="default" size="100%">12</style></issue></record></records></xml>