Production of monosaccharides and bio-active compounds derived from marine polysaccharides using subcritical water hydrolysis
| Autor: | Aviannie Meillisa, Hee Chul Woo, Byung-Soo Chun |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Formic acid
Alginates Oligosaccharides Saccharina japonica Polysaccharide Phaeophyta Antioxidants Catalysis Analytical Chemistry Hydrolysis chemistry.chemical_compound Glucuronic Acid Polysaccharides Monosaccharide Dry matter Sugar chemistry.chemical_classification Chromatography biology Hexuronic Acids Monosaccharides Temperature Water General Medicine Hydrogen-Ion Concentration biology.organism_classification Seaweed Molecular Weight chemistry Spectrometry Mass Matrix-Assisted Laser Desorption-Ionization Food Science Nuclear chemistry |
| Zdroj: | Food chemistry. 171 |
| ISSN: | 1873-7072 |
| Popis: | Polysaccharides are the major components of brown seaweed, accounting for approximately 40-65% of the total mass. The majority of the brown seaweed polysaccharides consists of alginate (40% of dry matter), a linear hetero-polysaccharides commonly developed in fields. However, depolymerisation of alginate is required to recover high-value compounds. In this report, depolymerisation was performed using subcritical water hydrolysis (SWH) at 180-260°C, with a ratio of material to water of 1:25 (w/v) and 1% formic acid as a catalyst. Sugar recovery was higher at low temperatures in the presence of catalyst. The antioxidant properties of Saccharina japonica showed the best activity at 180°C in the presence of a catalyst. The mass spectra produced using MALDI-TOF showed that polysaccharides and oligosaccharides were produced during hydrothermal treatment. Hydrolysis treatment at 180°C in the presence of a catalyst may be useful for modifying the structure of S. japonica and purified alginate. |
| Databáze: | OpenAIRE |
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