Abstract
In present study, fourteen compounds in Allium sativum (garlic, harvested from Kastamonu province) essential oil which was obtained by using a microwave-assisted clevenger system with a solvent-free option in a shorter time than traditional methods were identified by gas chromatography/mass spectrometry (GC/MS). Allyl trisulfide (27.09%), allyl methyl trisulfide (21.26%), allyl disulfide (20.02%), allyl trans-1-propenyl disulfide (7.48%), allyl methyl disulfide (6.08%), 2-vinyl-4H-1,3-dithiine (4.32%) were the most abundant sulphur compounds in oil. Also, total phenolic content was calculated as 2.84 mg gallic acid equivalent (GAE)/g and IC50 value which defined the required amount to reduce the 50% of 2,2-Diphenyl-1-picrylhydrazyl (DPPH) solution and an indicator for antioxidant activity was 63.58 g/L. Butylated hydroxyanisole (BHA) and 6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (trolox) were accepted as reference synthetic antioxidants and their IC50 values were recorded as 0.09 and 0.08 g/L respectively.
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