FOOD SCIENCE ›› 2014, Vol. 35 ›› Issue (2): 328-332.doi: 10.7506/spkx1002-6630-201402064

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Optimization of Brewing Process for Corn Silk Tea Bags Using Response Surface Methodology

 YAO Ying-zheng, DONG Ling, ZENG Xiao-dan   

  1. Institute of Agro-products Processing, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China
  • Received:2013-06-02 Revised:2013-12-27 Online:2014-01-25 Published:2014-02-19
  • Contact: ZHU Yu E-mail:zy200458@126.com

Abstract:

The brewing process for corn silk tea bags was optimized using response surface methodology. Nine formulations
of corn silk tea bags were analyzed by sensory evaluation and determined for polysaccharide content. The best formulation
was selected based on the analysis results and response surface methodology was used to optimize the brewing process. The
results showed that the experimental polysaccharide content in the brewing liquid was (75.87 ± 1.60) mg/g, which was
close to the predicted value of 76.04 mg/g, under the optimized conditions: brewing 1 g of raw materials (corn silk, Imperata
cylindrical rhizome and Stevia rebaudiana, 0.600 0:0.380 0:0.020 0, m/m) ground to 40 mesh with 190 mL of water for 17 min.
Therefore, it is feasible to optimize the brewing process of corn silk tea bags using response surface methodology.

Key words: corn silk, polysaccharides, sensory evaluation, Imperata cylindrical rhizome, Stevia rebaudiana

CLC Number: