Antioxidant and Antimicrobial Activities of Allium roseum L. oLazoul,o A Wild Edible Endemic Species in North Africa

作者：Najjaa Hanen; Zerria Khaled; Fattouch Sami^*; Ammar Emna; Neffati Mohamed

来源：International Journal of Food Properties, 2011, 14(2): 371-380.

DOI：10.1080/10942910903203164

• ABTS center dot
• Allium
• Antibacterial
• Antioxidant
• DPPH
• Polyphenols

Total polyphenolic contents (TPC), antioxidant and antibacterial activities of bulb, leaf and flower extracts of the North African endemic plant Allium roseum were studied using three different solvents. Flower and leaf TPCs were found significantly higher than that of bulb with the highest values in methanolic extracts reaching 736.65 +/- 88.67 and 749.54 +/- 129.15 mg catechol equivalent/100 g of dry material, respectively. The same trend was observed for antioxidant potentials using DPPH. and ABTS.+ scavenging methods. Moreover, the A. roseum phenolic extracts strongly inhibited the growth of a range of microorganisms. Multivariate analysis showed that the extraction solvent and the plant material significantly affected the quantity and bioactivity of the phenolics. Almost all extracts exhibited antioxidant and antibacterial activity; however, the highest values were found in the methanolic extracts of leaves and flowers. These results provide the basis for the use of this edible spontaneous species for functional food ingredients and/or supplements.

• 出版日期2011