以超声波为辅助手段,稀盐酸为催化剂,常压水解茶籽壳制备木糖,利用3,5-二硝基水杨酸比色法（DNS法）对水解液中的木糖进行检测。通过正交试验考察了超声预提时间、酸浓度、茶籽壳粉碎度、水解时间等对木糖产率的影响。研究表明各因素对木糖得率的影响由大到小的顺序依次为水解时间、酸浓度、粉碎度、超声预提时间;最佳制备条件为：超声预提时间为45min,功率为50kHz,温度为25~30℃;酸浓度为0.6mol/L;粉碎度为40目;水解时间为3h。在此条件下,木糖产率最高,达28.44%。研究为茶籽壳的利用提供了一种简便易行的参考方法。

In order to produce xylose from tea seed shells, The method of hydrolysis of tea seed shells under preeure was used, and the dilute hydrochloric acid as a catalyst, and the ultrasonic waveas the assisted method. The xylose was monitored by 3,5-dinitrosalicylic acid (DNS) colorimetric method. The hydrolytic factors including pre-extraction time, hydrochloric acid concentration, hydrolysis time were investigated by means of orthogonal test. Results have demonstrated that the importance of various factors were arranged in following order: time of hydrolysis>concentration of acid>particlesize>time of ultrasonic wave pre-extration. The optimum factors production were as follows: 45min, ultra-sonic wave pre-extration, ultrasonic frequency of 50kHz at 25~30℃, hydrochloric acid concentration at 0.6mol/L, particle size of seed shell at 40 mesh hydrolysis time for 3h. Under the above mentioned conditions, the highest productivity of xylose was obtained, the yield was up to 28.44%. This study provided an simple method on the comprehensive utilization of tea seed shells.