摘要
Abstract
The supercritical CO_2 fluid extraction technology was used to extract cumin essential oil.The effect of granularity of cumin powder,extract pressure,extract temperature,extract time on the extract rate and performance number of cumin oil were researched,and the optimal extract conditions were obtained,respectively.Besides,the curing process was adopted for the pri-treatment technology to get the roasted cumin essential oil.The results showed that,the optimal conditions of the supercritical CO_2 extraction for untreated cumin essential oil extracting were as follows：the grind degree of material was at 30 hole,the extraction pressure was at 30MPa,extraction temperature was at 60℃,extraction time was at 2.5h,the yield was 13.97% and the content of cuminal was 32.75%.For the extraction of roasted cumin essential oil,the roasting temperature was 180℃,the grind degree of material was at 30 hole,the extraction pressure was 25MPa,extraction temperature was 60℃,extraction time was 2.5h,the yield was 11.38% and the content of cuminal was 31.95%.关键词
超临界CO_2萃取/孜然油/熟化Key words
supercritical CO_2 fluid extraction/cumin essential oil/curing process分类
轻工纺织
