화학공학소재연구정보센터
Separation Science and Technology, Vol.50, No.14, 2230-2237, 2015
Supercritical Carbon Dioxide and Hexane Extraction of Wax from Apple Peel Pomace: Content, Composition, and Thermal Properties
Wax of apple peel pomace (WAPP) was obtained from supercritical carbon dioxide (SC-CO2) extraction (SCCE) and hexane extraction (HE), respectively. Characteristics of WAPP, which included extraction yield, chemical composition, thermal properties, and sensory properties, were then analyzed. SCCE and HE reached an extraction yield of 2.081% and 3.975%, respectively. GC/MS results showed that WAPP from SCCE and HE were different in contents and varieties. The differential scanning calorimetry (DSC) thermograms and sensory properties of WAPP from SCCE and HE also exhibited some differences. The study provided a promising alternative for the reuse of apple pomace, converting by-products into value-added wax.