摘要
以橘皮为原料,采用超临界CO2萃取技术(SFE)提取雪峰蜜橘橘皮中精油和色素,通过正交试验确定萃取的最佳中试条件,并利用气相色谱-质谱法(GC-MS)分析最佳中试工艺条件下生产的橘皮精油成分。结果表明:最佳中试提取工艺条件为萃取压力30MPa、萃取时间1h、萃取温度40℃、CO2流量21.27L/min,此时提取物(色素+精油)提取率4.56%。其中精油共检测出21种成分,主要成分为D-柠檬烯、α-金合欢烯、白菖油萜、β-榄香烯、β-蒎烯等,其中D-柠檬烯和α-金合欢烯的总含量达90%以上。
Supercritical carbon dioxide fluid extraction（SFE）technique was utilized to simultaneously extract the essential oil compounds and pigments in Xuefeng tangerine peel.To maximize the yield of crude extract from tangerine peel,the process conditions for the pilot-scale extraction of Xuefeng tangerine peel were optimized by orthogonal array design method.The optimum pilot-scale extraction conditions were determined as follows：CO2 flow rate of 21.27 L/min for an extraction duration of 1 h at 30 MPa,40℃,which yielded 4.56%of crude extract（pigments plus essential oil）.The crude extract obtained under these conditions was separated with a separalory funnel,and the oil phase was then centrifugated at 12000 r/min for 10 min to harvest the upper phase,which was analyzed by GC-MS for its volatile composition.A total of 21 volatile compounds were detected in the analyte,and the prominent compounds were D-limonene,α-farnesene,calarene,β-elemene,β-pinene,and so on and the total content of D-limonene andα-farnesene exceeded 90%.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2011年第2期120-123,共4页
Food Science
基金
科技部科技人员服务企业行动项目(2009GJD20017)
关键词
橘皮
超临界CO2萃取
中试条件
精油
气相色谱-质谱联用分析
orange peel
supercritical carbon dioxide fluid extraction
pilot-scale extraction conditions
essential oil
gas chromatography-mass spectromethy
