天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (10): 1685-1689.

• 开发研究 • 上一篇    下一篇

构树种子油的超声强化提取及其抗氧化性研究

瞿晓晶,彭芳芳,尹楹富,谭莹莹,权春善*   

  1. 大连民族学院生命科学学院, 大连 116600
  • 出版日期:2014-10-30 发布日期:2014-10-31

Ultrasonic Extraction and Antioxidant Activity Investigation of Broussonetia papyrifer Seed Oil

QU Xiao-jing,PENG Fang-fang,YIN Ying-fu,TAN Ying-ying,QUAN Chun-shan*   

  1. College of Life Science,Dalian Nationality University, Liaoning Dalian 116600, China
  • Online:2014-10-30 Published:2014-10-31

摘要: 本文采用单因素设计,进行均匀设计实验,用超声波提取法考察了溶剂种类、超声波强度、超声波提取时间、料液比(g/mL)对构树种子油提取率的影响,同时研究了构树种子油清除羟基自由基和超氧阴离子自由基的能力。结果表明,在以丙酮作提取剂,各因素对构树种子油提取效率的影响次序为:超声波强度>料液比>超声时间;工艺参数为:超声波强度为65%,料液比(g/mL)1:12,超声提取时间7 min,构树种子油提取率可达30.2%。同时,以构树种子油清除羟基自由基能力和超氧阴离子自由基能力为指标,研究构树种子油的抗氧化能力。通过DPPH法和邻苯三酚自氧化法测定其抗氧化活性,结果发现其对羟基自由基的抑制率高达93.56%,而对超氧阴离子没有明显抑制作用。

关键词: 构树种子油, 超声波强化, 提取率, 羟基自由基, 超氧阴离子自由基, 抗氧化性

Abstract: In this study,the effects of extraction solvents,ultrasonic power,treatment time and ratio of solid to liquid were investigated by an uniform design experiment.Meanwhile,the scavenging activities of Broussonetia papyrifer seed oil on hydroxyl free radical and superoxide anion radical were determined.The results indicated that the influencing factors on extraction yield of B.papyrifer seed oil were in this order (from strong to weak):ultrasonic power,ratio of solid to liquid,treatment time.The optimized processing parameters were determined to be:ultrasonic power was 65%,treatment time was 7 min,ratio of solid to liquid was 1:12.Under the optimized extraction conditions,the extraction yield of B.papyrifer oil was 30.2%.The antioxidant activities of the oil were determined by DPPH and pyrogallol autoxidation assays.The results indicated that B.papyrifer seed oil had strong hydroxyl free radical scavenging activity,reaching 93.56%,but no superoxide anion radical scavenging activity.

Key words: Broussonetia papyrifer seed oil, ultrasonic power, extraction yield, hydroxyl free radical, superoxide anion free radical, antioxidant activity

中图分类号: 

TQ646