广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2010年
10期
51-52,61
,共3页
超声波%超临界CO2%萃取%绿原酸
超聲波%超臨界CO2%萃取%綠原痠
초성파%초림계CO2%췌취%록원산
chlorogenicacid%ultrasound%supercritical CO2%extraction
绿原酸具有抗氧化、清除自由基、抑制突变与抗肿瘤等生理活性。考察了萃取温度、压力、时闻、流体流量和超声功率密度对超声超临界CO2萃取绿原酸的影响，结果表明，超声波的加入可以缩短超临界CO2萃取时间、降低CO2流量和提高萃取率。工艺优化后的条件为：70％乙醇加入量为400mL／100g原料，萃取温度、压力、时间、CO2流量分别为50℃、30MPa、3．5h、3．0L／h，超声频率和功率密度分别为20kHz、100W/L。优化条件下绿原酸的萃取率达4．71％
綠原痠具有抗氧化、清除自由基、抑製突變與抗腫瘤等生理活性。攷察瞭萃取溫度、壓力、時聞、流體流量和超聲功率密度對超聲超臨界CO2萃取綠原痠的影響，結果錶明，超聲波的加入可以縮短超臨界CO2萃取時間、降低CO2流量和提高萃取率。工藝優化後的條件為：70％乙醇加入量為400mL／100g原料，萃取溫度、壓力、時間、CO2流量分彆為50℃、30MPa、3．5h、3．0L／h，超聲頻率和功率密度分彆為20kHz、100W/L。優化條件下綠原痠的萃取率達4．71％
록원산구유항양화、청제자유기、억제돌변여항종류등생리활성。고찰료췌취온도、압력、시문、류체류량화초성공솔밀도대초성초림계CO2췌취록원산적영향，결과표명，초성파적가입가이축단초림계CO2췌취시간、강저CO2류량화제고췌취솔。공예우화후적조건위：70％을순가입량위400mL／100g원료，췌취온도、압력、시간、CO2류량분별위50℃、30MPa、3．5h、3．0L／h，초성빈솔화공솔밀도분별위20kHz、100W/L。우화조건하록원산적췌취솔체4．71％
Chlorogenic acid had biological activities such as anti-oxidation, scavenging free Radical, suppressor mutation and anti-tumor. In the paper, effects of extraction temperature, pressure, time, CO2 flow rate and ultrasound power density on extraction of chlorogenic acid by ultrasound assisted supercritical CO2 were studied. Results showed that ultrasound field could shorten extraction time, degrade CO2 flow rate and enhance extraction yield. Optimization condition was as follows： 70 % ethanol quantity was 400 mL/100 g raw material. Extraction temperature, pressure, time, CO： flow rate was 50 ℃, 30 MPa, 3.5 h and 3.0 L/h respectively. Ultrasonic frequency and power density was 20 kHz and 100 W/L respectively. Under optimization condition, extraction yield reached 4.71%.
