Study of morphology of composite fibers polyvinylpyrrolidone/cellulose acetate loaded by garlic extract with glycerin as an additive

Abstract

Abstract By means of electrospinning, composite fibers mat built from PVP (polyvinylpyrrolidone) and CA (cellulose acetate) with garlic extract as the active agent and glycerin as the additive has been successfully produced. The precursor solution was the mixture of PVP, CA, glycerin and garlic extract in the acetic acid 98% (v/v). The precursor solution was firstly made by the mixing of PVP solution (9 wt%) and CA solution (9.6 wt%.) in the acetic acid and subsequently mixed at the weight ratio of PVP and CA solutions to be 8:5. The precursor solution was made at 15 g each, consisted of 13 g of PVP/CA solution, one gram of garlic extract and one gram of glycerin. The electrospun nanofiber mats were synthesized with varying an applied voltage from 12 to 17 kV. For all nanofiber mats made with different applied voltage, cluster with branched fibers was shown for all nanofiber mats. The average fiber diameter of composite fiber increased along with the increasing applied voltage from 12 to 15 kV. In the FTIR study, a sharp peak at 1014 cm−1 as the characteristic peak of garlic extract, which attributes to the existence of S O group and proving the presence of organosulfur compounds such as alliin, allicin dan diallyl disulfide, was found. In the composite fibers of PVP/CA/glycerin/garlic, the characteristic peak of garlic shifted to a higher wavenumber 1036 cm−1.