An evaluation of the antioxidant abilities of Allium species

In the present study we investigated antioxidative properties of leaves of different wild (Allium flavum L., Allium sphaerocephalum L., Allium atroviolaceum Bois., Allium vienale L., Allium scorodoprasum L.) and grown (Allium nutans L., Allium fistulosum L., Allium vienale L., Allium pskemense B. Fedtsch, Allium schenoprasum L., Allium cepa L., Allium sativum L.) Allium sorts were investigated. Activities of antioxidant enzymes (superoxide dismutase, catalase, peroxidase, glutathione peroxidase), quantities of malonyldialdehyde superoxide and hydroxyl radicals and reduced glutathione and also the content of total flavonoids, chlorophylls a and b, carotenoids, vitamin C and soluble proteins were determined. Our results indicate that leaves of grown Allium sativum L., Allium cepa L., Allium vineale L., Allium fistulosum L. and Allium nutans L. and wild Allium flavum L. and Allium ursinum L. exibited high antioxidant activites

Structural rehabilitations with Ultra High Performance Fibre Reinforced concretes

This study was designed to examine Allium schoenoprasum tissue culture organs antioxidant and scavenging activity and to make a comparison between Allium schoenoprasum cultivated plant and Allium schoenoprasum tissue culture organs antioxidant activity. This study reports the results on the root, stalk and leaf antioxidant enzyme activities (superoxide dismutase, catalase, guaiacol peroxidase and glutathione peroxidase), reduced glutathione quantity, flavonoids and soluble protein contents and quantities of malonyldialdehyde and. OH radical. In Allium schoenoprasum tissue culture organs the total antioxidant capacity was determined by the FRAP method and scavenger activity by the DPPH method. The present results indicated that the crude extract of Allium schoenoprasum tissue culture exhibited antioxidant and scavenging abilities in all investigated plant parts, especially in the roots. According to our results, the tissue culture plants exhibited the highest activities in the roots in contrast to the cultivated plants where highest activities were observed in the leaves. Copyright (C) 2011 John Wiley & Sons, Ltd.nul