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Néjia Zoghlami Ichraf ChritaBadra Bouamama Mahmoud GargouriHassène Zemni Abdelwahed GhorbelAhmed Mliki 《Scientia Horticulturae》2007
In this work, we report for the first time on the analysis of genetic diversity within a set of 36 Tunisian Opuntia ficus indica (L.) Mill. ecotypes using RAPD markers. 相似文献
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Valorization of three varieties of grape 总被引:2,自引:0,他引:2
Moufida Saïdani Tounsi Ines Ouerghemmi Wissem Aidi Wannes Riadh Ksouri Hassene Zemni Brahim Marzouk Mohamed Elyes Kchouk 《Industrial Crops and Products》2009,30(2):292-296
In the present investigation, seed methanolic extracts of three Vitis vinifera (Muscat d’Italie, Syrah and Carignan) were assayed for their antioxidant activities. Results showed that there are strong variations in the contents of total phenols (440.97–121.94 mg GAE g−1 DW), flavonoids (48.07–16.81 mg EC g−1 DW) and tanins (37.15–14.9 mg EC g−1 DW) from the studied seeds. The phenolic composition of these extracts was determined by RP–HPLC after acid hydrolysis. The main phenolic compound was quercetin with 27.2% in Muscat d’Italie, 48.8% in Syrah and 28.4% in Carignan. Besides, all seed extracts showed remarkable DPPH radical scavenging activity with IC50 values ranged from 1.8 to 30 μg ml−1. EC50 values of reducing power activity ranged from 100 to 120 μg ml−1. The high phenolic content and the considerable antioxidant activities of vitis seed extracts could potentially be considered as an expensive source of natural antioxidants. 相似文献
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