Abstract
In this study, the application of electrospun nanofiber materials in the extraction of garlic oil was preliminarily studied, and the antioxidant activity of garlic oil in vitro was tested. The results showed that it is preferable for the polystyrene (PS) nanofiber membrane prepared by electrospinning to be utilized as the medium material for the extraction of garlic oil by flow adsorption and ethanol solvent desorption. The extraction rate was up to 0.36%. Through ABTS free radical experiments, it was found that the highest clearance rate is basically around 80%. The results of DPPH free radical experiment displayed decent DPPH free radical scavenging ability. The metal chelation experiments indicated the oil can interfered with the formation of complexes between ferrozine and ferrous ions and captured ferric ion before ferrozine. in vitro reduction experiments revealed that the extracted garlic oil could terminate the free radical chain reaction and play an antioxidant role. Superoxide anion experiments signified that the scavenging rate of superoxide anion is around 50% with 1 mg/mL of garlic essential oil. In conclusion, in this paper the extracted garlic oil by PS nanofibers displayed preferable antioxidant activity, and importantly the electrospun nanofibers can be utilized as a promising extraction media of allium essential oils.
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