食品科学 ›› 2013, Vol. 34 ›› Issue (8): 136-139.doi: 10.7506/spkx1002-6630-201308027

• 工艺技术 • 上一篇    下一篇

蒙古栎橡子中单宁的脱除工艺

曹海霞,杨晓清   

  1. 内蒙古农业大学食品科学与工程学院,内蒙古 呼和浩特 010018
  • 收稿日期:2011-12-01 修回日期:2013-02-02 出版日期:2013-04-25 发布日期:2013-05-07
  • 通讯作者: 曹海霞 E-mail:caohaixia1021@126.com

Removal of Tannins from Quercus mongolica Fisch Acorns

CAO Hai-xia,YANG Xiao-qing   

  1. College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
  • Received:2011-12-01 Revised:2013-02-02 Online:2013-04-25 Published:2013-05-07

摘要: 研究超声波脱除蒙古栎橡子中单宁的工艺。通过单因素试验选择对单宁脱除效果影响较大的因素进行正交试验,确定的最佳脱除条件为乙醇溶液体积分数40%、料液比1:30(g/mL)、颗粒度80目以上、超声温度55℃、超声功率400W、超声时间60min。在此条件下可以使单宁脱除量达到69.99mg/g。

关键词: 蒙古栎橡子, 超声波, 单宁, 脱除

Abstract: An ultrasonic-assisted solvent extraction method for the removal of tannins from acorns, Quercus mongolica Fisch, was explored in this work. Main process parameters influencing the removal efficiency of tannins were identified by one-factor-at-a-time method and optimized by orthogonal array design. Optimum removal conditions were obtained when using 40% ethanol as the extraction solvent at a solid-to-liquid ratio to extract acorn powder with particle size over 80 mesh at 55 ℃ for 60 min with an ultrasonic power of 400 W. The maximum removal efficiency of tannins observed under the optimum conditions was 69.99 mg/g.

Key words: Quercus mongolica Fisch acorn, ultrasonic, tannins, removal

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