The neuroprotective activities and antioxidant activities of the polysaccharides from Saccharina japonica was written by Jin, Weihua;Zhang, Wenjing;Wang, Jing;Zhang, Quanbin. And the article was included in International Journal of Biological Macromolecules in 2013.Quality Control of (2R,3R,4S,5S)-2,3,4,5-tetrahydroxyhexanal hydrate This article mentions the following:
The crude polysaccharide (W) was extracted by water from Saccharina japonica and five fractions were separated by anion-exchange chromatog. And their chem. constituents, neuroprotective activities and antioxidant activities were studied. It showed that W had the neuroprotective activity while its fractions did not. In addition, the fractions displayed higher activities on hydroxyl-radical scavenging effects and reducing power than these of W. Moreover, it was speculated that the neuroprotective activities of samples were related to the hydroxyl-radical scavenging effect and reducing power while did not relate to superoxide-radical scavenging effect. Finally, it was concluded that some fractions could be good candidate antioxidants in food chem. owing to the high antioxidant activities and their non-toxic characteristics. In the experiment, the researchers used many compounds, for example, (2R,3R,4S,5S)-2,3,4,5-tetrahydroxyhexanal hydrate (cas: 10030-85-0Quality Control of (2R,3R,4S,5S)-2,3,4,5-tetrahydroxyhexanal hydrate).
(2R,3R,4S,5S)-2,3,4,5-tetrahydroxyhexanal hydrate (cas: 10030-85-0) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Under carefully controlled conditions, simple alcohols can undergo intermolecular dehydration to give ethers. This reaction is effective only with methanol, ethanol, and other simple primary alcohols.Quality Control of (2R,3R,4S,5S)-2,3,4,5-tetrahydroxyhexanal hydrate
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts