Microwave-assisted hydrothermal extraction of sulfated polysaccharides from Ulva spp. and Monostroma latissimum

Shuntaro Tsubaki, Kiriyo Oono, Masanori Hiraoka, Ayumu Onda, Tomohiko Mitani

Research output: Contribution to journalArticlepeer-review

101 Citations (Scopus)

Abstract

Microwave-assisted hydrothermal extraction was applied for production of sulfated polysaccharides from Ulva spp. and Monostroma latissimum. The maximum ulvan yields attained 40.4 ± 3.2% (Ulva meridionalis) and 36.5 ± 3.1% (Ulva ohnoi) within 4 min of come-up time and 10 min of extraction time at 160 °C, respectively. The rhamnan sulfate yield from M. latissimum further attained 53.1 ± 7.2% at 140 °C. The sulfated polysaccharides were easily recovered from the extract by simple ethanol precipitation. In addition, molecular weights and viscosity of the extracted polysaccharides could be controlled by varying the extraction temperature. Dielectric measurement revealed that ionic conduction was the important parameter that affect the microwave susceptibility of algae-water mixture. The sulfated polysaccharides extracts are expected as potential feedstock for medical and food applications.

Original languageEnglish
Pages (from-to)311-316
Number of pages6
JournalFood Chemistry
Volume210
DOIs
Publication statusPublished - Nov 1 2016
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Food Science

Fingerprint

Dive into the research topics of 'Microwave-assisted hydrothermal extraction of sulfated polysaccharides from Ulva spp. and Monostroma latissimum'. Together they form a unique fingerprint.

Cite this