关键词: 牛蒡, 水解, 固体酸, 果糖

Abstract:

Burdock roots containing inulin provided a raw material for the preparation of fructose derived from hydrolyzed inulin. D061 strong cation resin, a solid acid was used as catalyzer to prepare fructose. The effects of the main hydrolysis conditions, i.e., solid-to-liquid ratio, hydrolysis temperature, length of hydrolysis time and hydrolysis times on hydrolysis rate and reducing sugar content were investigated by single factor and orthogonal array design methods. The results showed that the use of D061 strong cation resin to repeatedly extract the material 3 times at 75 ℃ and 1:2 solid-to-liquid ratio for 120 min each time provided an optimal hydrolysis, and the resulting hydrolysis rate and reducing sugar content were 76.7% and 145.8 g/L, respectively.

Key words: burdock, hydrolysis, solid acid, fructose