藤三七茎总黄酮微波提取工艺优化  

Optimization of Microwave Extraction Technique of Total Flavonoids from Anredera cordifolia Stem

作　　者：孟祥凤 张红 赵艺飞 左晓哲 尚爽 MENG Xiang-feng;ZHANG Hong;ZHAO Yi-fei;ZUO Xiao-zhe;SHANG Shuang(College of Life Sciences,Dezhou University,Dezhou 253023,China)

机构地区：[1]德州学院生命科学学院,山东德州253023

出　　处：《保鲜与加工》2021年第1期113-116,共4页Storage and Process

摘　　要：以自然生长的藤三七茎为原料,利用不同浓度的乙醇作为提取剂,采用微波法提取总黄酮。在单因素试验的基础上,分别研究不同部位、料液比、乙醇浓度、微波功率及微波时间对藤三七总黄酮提取率的影响,并得出影响因素主次和最佳提取方案。结果表明,藤三七茎较其他部位总黄酮含量高,且茎不易被氧化;藤三七茎中总黄酮的最佳提取工艺为:微波时间70 s,微波功率320 W,乙醇浓度70%,料液比1∶80(g/mL),在此条件下,黄酮提取率为7.42%。影响提取率的因素主要为微波功率和乙醇浓度,在生产加工中应对其加以控制。The stems of naturally growing Anredera cordifolia were used as raw materials,and total flavonoids was extracted by microwave method with different concentrations of ethanol as extractant.Based on single-factor experiments,the effects of different parts,material-liquid ratio,ethanol concentration,microwave power and time on the extraction rate of total flavonoids from Anredera cordifolia were investigated,and the order of influencing factors and optimal extraction technique were determined.The result showed that the content of total flavonoids in stem of Anredera cordifolia was higher than that in other parts,and the stem was not easily oxidized.The best extraction technique of total flavonoids from Anredera cordifolia stem was as follows:microwave time 70 s,microwave power 320 W,ethanol concentration 70%,and material-liquid ratio 1∶80(g/mL).Under these conditions,the extraction yield was 7.42%.The main factors affecting the extraction rate were microwave power and ethanol concentration,which should be controlled during production and processing.

关 键 词：藤三七 总黄酮 不同部位 微波提取法 正交试验 

分 类 号：TS201.2[轻工技术与工程—食品科学]