원문정보
초록
영어
Robusta contributes about 30% of the world coffee production, and Vietnam is the No1 country for exporting Robusta. Therefore a chemical profile of this coffee is very useful for researchers and manufacturers related to coffee. The objective of this work is to determine the composition of fatty acids, tocopherols, diterpenes and sterols in coffee oil of Vietnamese Robusta green beans and roasted beans. This work also tests the capacities for whitening, anti-oxidation and UV light protection of these coffee oils in order to provide subsidiary information for applying coffee oil in cosmetic. Coffee oil was extracted by supercritical carnon dioxide. Fatty acids were analysed as methyl esters by GC system while tocopherols, diterpenes and sterols were determined by HPLC analyses. Whitening, anti-oxidation and UV protected capacities of coffee oil was
tested through Tyrosinase, DPPH assay and SPF values respectively.