Infusion Properties of Solid Beverage of Effervescent Tablets Based on Barley Grass Powder

Abstract:

Effervescent tablets based on barley grass powder were prepared by vacuum freeze-drying and high energy nanoscale impact. The effects of the addition of barley grass powder，the ratio of disintegrating agent（NaHCO₃∶citric acid）and the addition of stevioside on the infusion properties of effervescent tablets were investigated. Orthogonal design was used to optimize the formulation of effervescent tablets based on single factor test. The results showed that the effervescent tablet with 10% barley grass powder，1 g∶0.7 g disintegrating agent and 1% stevioside exhibited the highest sensory score with a good color and strong aroma of wheat. The diameter，pH，gas production and disintegration time of the effervescent tablet were 1 cm，6，7 mL and 2 min，respectively.