JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 35 Issue 6
December 2020
Article Contents
LI Yan, NING Houqi and LI Yingqiu. Optimization of extraction process of fucoidan sulfate from seaweed residue[J]. Journal of Light Industry, 2020, 35(6): 9-15. doi: 10.12187/2020.06.002
Citation: LI Yan, NING Houqi and LI Yingqiu. Optimization of extraction process of fucoidan sulfate from seaweed residue[J]. Journal of Light Industry, 2020, 35(6): 9-15. doi: 10.12187/2020.06.002 shu

Optimization of extraction process of fucoidan sulfate from seaweed residue

  • Received Date: 2020-06-04
  • Using seaweed residue as raw material, the fucoidan sulfate was extracted by acid extraction. The extraction process conditions were optimized through single factor experiment and orthogonal experiment. In order to achieve the purification of the crude fucoidan sulfate, the optimal ethanol precipitation volume fraction was screened in combination with the Dische colorimetric method. The results showed that the optimal process conditions for extracting fucoidan sulfate from seaweed residue by acid extraction were HCl concentration 0.25 mol/L, extraction temperature 50 ℃, extraction time 2 h, and material-liquid ratio 1: 10. The extraction rate of crude fucoidan sulfate was 1.89%. Combined with the Dische colorimetric method, the optimal ethanol precipitation volume fraction was 70%. At this time, the mass concentration of fucoidan sulfate reached the maximum, which was 3.12 μg/mL.
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