JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 36 Issue 5
November 2021
Article Contents
XU Zhen, JIN Xueyuan, DUAN Jun and et al. Study on modification of dietary fiber from jujube pomace by twin-screw extrusion[J]. Journal of Light Industry, 2021, 36(5): 9-15. doi: 10.12187/2021.05.002
Citation: XU Zhen, JIN Xueyuan, DUAN Jun and et al. Study on modification of dietary fiber from jujube pomace by twin-screw extrusion[J]. Journal of Light Industry, 2021, 36(5): 9-15. doi: 10.12187/2021.05.002 shu

Study on modification of dietary fiber from jujube pomace by twin-screw extrusion

  • Received Date: 2021-02-21
  • With SDF mass fraction as the index, the dietary fiber of Jujube pomace was modified by twin-screw extruder, the effects of moisture mass fraction, host frequency and extrusion temperature on SDF mass fraction were studied. The extrusion conditions were optimized by response surface methodology and the physical and chemical characteristics of dietary fiber from modified Jujube pomace were analyzed. The results showed that the optimum technological conditions of extrusion modification of jujube pomace were as follows:moisture mass fraction 27.5%, host frequency 34 Hz, extrusion temperature 164℃. Under these conditions, compared with that before modification, the mass fraction of modified SDF was increased to 17.67%, the fluidity of the powder was enhanced, and the color and luster became lighter and darker.
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