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作 者:卞京军 程密密 刘世尧[1] 白志川[1] 韦正鑫 蔡娟[1]
机构地区:[1]西南大学园艺园林学院/南方山地园艺学教育部重点实验室,重庆400715
出 处:《西南大学学报(自然科学版)》2015年第3期158-165,共8页Journal of Southwest University(Natural Science Edition)
基 金:重庆市科技攻关计划项目(CSTC;2009AC1180)
摘 要:采取高效液相色谱法与三氯化铝比色法检测皱皮木瓜皮渣齐墩果酸、熊果酸和总黄酮得率,通过单因素试验进行3种物质提取因素敏感区域确定,并利用正交试验设计进行3种物质连续提取工艺指标优化研究.结果表明:1齐墩果酸、熊果酸:超声提取,乙醇体积分数95%,料液比为1∶10(g/mL),提取温度70℃,提取时间40min,此时得率最高,为1.677%;2总黄酮:超声提取,乙醇体积分数50%,料液比为1∶25(g/mL),提取温度60℃,提取时间70min,此时得率最高,为0.527%.Objective: To optimize the co-production extraction process for oleanolic acid (OA), ursolic acid (UA) and total flavonoids from the peel pomace of Chaenomeles speciosa (Sweet) Nakai. Methods: A sin- gle factor test was conducted to determine the sensitive regions for the extraction of the above three sub- stances, and then an orthogonal test was used to optimize the factors of co-production extraction process: extracting time, temperature, the ratio of solid to liquid and solvent concentration. The contents of olean- olic acid and ursolic acid were determined by HPLC. Aluminium trichloride colorimetry was used to detect the total flavonoids. Results: The optimum conditions for ultrasonic extraction of OA and UA were as fol- lows: a yield of 1. 677% was obtained when the solvent concentration was 95% ethanol, the extracting time was 40 min, the extracting temperature was 70 ℃ and the ratio of materials to solution was 1 : 10 (g/ mL) ; the optimum conditions for ultrasonic extraction of total flavonoids were as follows: the solvent con- centration was 50% ethanol, the extracting time was 70 min, the extracting temperature was 60 ℃ and the ratio of materials to solution was 1 : 25 (g/mL), and under such conditions the yield of total flavonoids was 0. 527%. Conclusion: This method was simple, convenient and accurate for the detection of oleanolic acid, ursolic acid and total flavonoids.
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