IMOBILISASI MIKROKAPSUL ANTIBAKTERI MINYAK ASIRI Eucalyptus globulus PADA KAIN KAPAS DENGAN METODE DEEP COATING

Abstract

. alginat-gelatin. minyak asiri E. globulus komersial 63,69% minyak globulus Sampel ABSTRACT Immobilization of antibacterial microcapsules of Eucalyptus globulus oil on cotton cloth has been done by means of deep coating. Microcapsules containing E. globulus essential oil were made by a complex coaservation method using an alginate-gelatin coater. GC-MS measurements of commercial E. globulus essential oil showed its main components were 63.69% miristat isoprophile and 1.8-sineol at 29.35%. Microcapsules were prepared in two samples, which were differed by the use of E. globulus oil in Sample I 4 g and Sample II 6 g. The average size of microcapsules Sample I was 1.550 µm and Sample II was 1.154 µm. Oil content (OC) and encapsulation efficiency (EE) were respectively, OC 78,70%; 42.49% and EE 75.19%; 51.54%. The microcapsules morphology of Sample I looks more rounded than Sample II. Antibacterial test results against S. aureus were higher than against E. coli. Sample I is more active than Sample II.