广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2011年
11期
29-30
,共2页
虎杖%白藜芦醇%紫外分光光度法%正交试验%提取
虎杖%白藜蘆醇%紫外分光光度法%正交試驗%提取
호장%백려호순%자외분광광도법%정교시험%제취
polygonum cuspidate%resveratrol%ultraviolet spectrophotometry%orthogoral design%extraction
以虎杖中白藜芦醇的提取率为评价指标,研究提取剂浓度、提取温度、提取时间、料液比等因素对白藜芦醇提取效果的影响。采用正交实验法,通过紫外分光光度计测定提取液中白藜芦醇的吸光值以计算其提取率,研究虎杖白藜芦醇的最佳提取分离工艺。研究结果表明：乙醇为提取剂的最佳提取工艺是固液料比1∶15、用80%乙醇浓度作为提取剂、提取温度70℃、提取时间1.5 h,该工艺虎杖中白藜芦醇提取率可达2.34%。
以虎杖中白藜蘆醇的提取率為評價指標,研究提取劑濃度、提取溫度、提取時間、料液比等因素對白藜蘆醇提取效果的影響。採用正交實驗法,通過紫外分光光度計測定提取液中白藜蘆醇的吸光值以計算其提取率,研究虎杖白藜蘆醇的最佳提取分離工藝。研究結果錶明：乙醇為提取劑的最佳提取工藝是固液料比1∶15、用80%乙醇濃度作為提取劑、提取溫度70℃、提取時間1.5 h,該工藝虎杖中白藜蘆醇提取率可達2.34%。
이호장중백려호순적제취솔위평개지표,연구제취제농도、제취온도、제취시간、료액비등인소대백려호순제취효과적영향。채용정교실험법,통과자외분광광도계측정제취액중백려호순적흡광치이계산기제취솔,연구호장백려호순적최가제취분리공예。연구결과표명：을순위제취제적최가제취공예시고액료비1∶15、용80%을순농도작위제취제、제취온도70℃、제취시간1.5 h,해공예호장중백려호순제취솔가체2.34%。
The extraction rate of resveratrol from polygonum cuspidatum is used as the index of evaluation,and studies such factors as extraction solvent concentration,temperature,solid—liquid ratio and extracting time which may exert impacts on the extraction effects.The orthogonal design is used to study the optimum extraction and separation technology of resveratrol from polygonum cuspidatum,and the extraction rate of resveratrol is calculated by the absorbency value using ultraviolet spectrophotometry.The optimum conditions of extracting resveratrol from polygonum cuspidatum with ethanol extraction were determined as follows： the ratio of material to liquid l∶15（g∶mL）,alcohol concentration 80 %,extracting temperature 70 ℃ and extracting time 1.5 h.Under these conditions,the extraction ratio of resveratrol reached 2.34 %.
