Narsih, Sri Kumalaingsih, Susinggih Wijana, Wignyanto
In this study, the microencapsulation of natural antioxidant powder from Aloe vera (L.) skin was carried out using 10% maltodextrin, 0.3% tween 80 and drying at 60°C; and the product was found to have free radical scavenging activity using DPPH (88.31%), total phenol (34.921%), and α tocopherol by HPLC (87.789mg/g). The GC-MS analysis for the phyto-component shows that the major compounds identified were squalene (16.84%), limonene (14.17%), 7- tetradeecane (13.13%) n-Hexadecanoic acid (11.91%) and α-Tocopherol (4.18%). The FTIR analysis shows that the functional components in the Aloe vera skin powder were phenol, aromatic, substituted alkenes, aromatic acid halide, aliphatic acid halide, eter R-O-R, Nitro NO2, Keton R-CO-R,vinilidene, carboxylic acid, metilene and OH. SEM analysis showed that drying process by foam mat method resulted in a structure that has the capacity to absorb water easily and can dissolved in cold water. The present findings, especially on the microencapsulation of Aloe vera skin powder will provide a new opportunity to improved the bioactive properties of the phyto-component as antioxidant agent. © 2008 IFRJ, Faculty of Food Science & Technology, UPM.
Department Agricultural Technology, Pontianak State Polytechnic, Pontianak, Kalimantan Barat, Jalan Ahmad Yani, Indonesia; Department Agroindustrial Technology, Faculty of Agricultural Technology, Brawijaya University, Jawa Timur, Jalan Veteran Malang, Indonesia
