Development of Taurine and Mint Mixed Sports Beverage and Its Antioxidant Activity in Vitro

Taurine and mint mixed sports beverage was developed with taurine and mint as raw materials and white sugar,xanthan gum,carboxymethyl cellulose sodium and gellan gum as supplements. The raw material liquid formula composed of taurine,mint and white sugar was optimized by single factor tests and orthogonal experiments with sensory evaluation as the index. The formula of mixed stabilizer composed of xanthan gum,carboxymethyl cellulose sodium and gellan gum was optimized by single factor tests and response surface methodology with centrifugation sedimentation rate as the index. The antioxidant activity of the beverage was evaluated by the determination of scavenging activity of the hydroxyl radical,superoxide anion free radical,and DPPH free radical. The results showed that the best sensory evaluation score of raw material liquid was 87.3±0.9 scores with taurine 0.03%,mint 6% and white sugar 3%. The centrifugal sedimentation rate of the beverage was 1.05% with addition of xanthan gum 0.14%,carboxymethyl cellulose sodium 0.40% and gellan gum 0.08%. The taurine and mint mixed sports beverage had astrong mint odor,uniform and transparent color,light yellow,moderate sweetness and sour,with a sense of refreshmeat,and no precipitation or stratification. The hydroxyl radical,superoxide anion free radical and DPPH free radical scavenging rates of the beverage were 42.76%,62.25% and 57.46%,respectively. Therefore,it had preferable antioxidant activity.