食品科学 ›› 2008, Vol. 29 ›› Issue (10): 163-167.

• 工艺技术 • 上一篇    下一篇

金银花速溶茶的制备工艺和质量标准研究

 张焱, 陈春刚   

  1. 天津顶新国际集团中央研究所; 河南科技学院食品学院;
  • 出版日期:2008-10-15 发布日期:2011-12-08

Production Technology and Quality Standard of Lonicera japonica Thunb Instant Tea

 ZHANG  Yan, CHEN  Chun-Gang   

  1. 1.Central Research Institute,Tinghsin International Group,Tianjin 300457,China; 2.School of Food Science,Henan Institute of Science and Technology,Xinxiang 453003,China
  • Online:2008-10-15 Published:2011-12-08

摘要: 本实验研究了金银花速溶茶的制备工艺和质量标准。采用正交试验的方法研究了金银花超声提取的工艺。采用正交试验的方法优化了金银花速溶茶喷雾干燥的工艺,并采用薄层和高效液相的方法对金银花速溶茶的主要成分绿原酸进行了定性和定量鉴别。确定了金银花超声提取的最佳工艺为:用10倍水提取三次,每次提取时间为1.0h。优化的喷雾干燥工艺条件为:进口温度为200℃,喷雾压力为180kPa,料液相对密度为1.10。在TLC图谱中可检出金银花的特征斑点,绿原酸在0.984~5.24μg间线性关系良好(r=0.9999),加样回收率为100.5%(RSD=1.84%)。

关键词: 金银花速溶茶, 超声提取, 喷雾干燥, 正交试验, 薄层色谱, 高效液相色谱法

Abstract: Orthogonal design was carried out to optimize the ultrasonic extraction method of Lonicera japonica Thunb and spray drying method of Lonicera japonica Thunb. instant tea. Identification of the tea using caffeotannic acid and the reference herb of Lonicera japonica Thunb by thin layer chromatography (TLC) was performed. The contents of caffeotannic acid was determined by high performance liquid chromatography (HPLC). The optimized extraction method is as follows: using 10 times of water to extract for 3 times,1 h for each time. The optimized spray drying method is as follows: Outlet temperature 200 ℃,spraying pressure 180kPa. Can relative density of materials was 1.10mg/ml.The characteristic spots of Lonicera japonica Thunb could be detected in thin layer chromatogram. The linear range of caffeotannic acid content is from 0.984 to 5.24μg(r=0.9999),and the average recovery is 100.5% (RSD=1.84%).

Key words: Lonicera japonica Thunb instant tea, ultrasonic extraction, spray drying, orthogonal design, TLC, HPLC