CAJ | 학술논문

优化超临界CO2萃取茶树花工艺，并对其萃取物进行GC‐MS检测及定性定量分析．考察萃取压力、温度和流量3个因素对茶树花萃取物得率的影响，通过正交试验优化得到的最佳工艺条件为萃取压力25 M Pa ，萃取温度40℃，CO2流量25 kg／h ，实际得率为1.36％±0.09％．经极差分析各因素的影响力由大到小为流量，压力，温度．通过GC‐M S检测结合保留指数判定，初步鉴定出97种化合物，分别是烷烃类33.85％，酯类8.49％，醛类2.35％，酮类5.95％，醇类2.86％，羧酸类31.18％，萜烯类8.16％及其他7.16％．
우화초림계CO2췌취다수화공예，병대기췌취물진행GC‐MS검측급정성정량분석．고찰췌취압력、온도화류량3개인소대다수화췌취물득솔적영향，통과정교시험우화득도적최가공예조건위췌취압력25 M Pa ，췌취온도40℃，CO2류량25 kg／h ，실제득솔위1.36％±0.09％．경겁차분석각인소적영향력유대도소위류량，압력，온도．통과GC‐M S검측결합보류지수판정，초보감정출97충화합물，분별시완경류33.85％，지류8.49％，철류2.35％，동류5.95％，순류2.86％，최산류31.18％，첩희류8.16％급기타7.16％．
Supercritical fluid extraction using carbon dioxide (SFE‐CO2 ) was employed to study the optimal process parameters of tea flower (Camellia sinensis L.) and aroma analysis was made of its extracts by GC‐MS .Three parameters‐pressure ,temperature and CO2 flow rate‐were selected ,and their influences on yield were investigated .Based on the results of an orthogonal experiment ,the optimum process parameters were shown to be :extraction pressure 25 MPa ,extraction temperature 40 ℃ and CO2 flow rate 25 kg/h . Under such a condition ,the actual yield of extracts was 1.36% ± 0.09% .The results of range analysis in‐dicated that the order of the three parameters influencing the extraction yield was CO 2 flow rate>extrac‐tion pressure>extraction temperature .The results of GC‐MS analysis from MS with retention index (RI) showed that there were 97 aroma compounds in the extracts of tea flowers .They were alkanes (33.85% ) , esters (8.49% ) ,aldehydes (2.35% ) ,ketones (5.95% ) ,alcohols (2.86% ) ,acids (31.18% ) ,terpenes (8.16% ) ,the others (7.16% ) .