Use of solid and gel state13C NMR spectroscopy for differentiation between agarophytes and carrageenophytes

✍ Scribed by Elizabeth Gordon-Mills; Max Tate; Andrea Hounslow

• Publisher: Springer
• Year: 1990
• Tongue: English
• Weight: 537 KB
• Volume: 204-205
• Category: Article
• ISSN: 1573-5141
• DOI: 10.1007/bf00040298

✦ Synopsis

Both solid state (CP-MAS) and gel state (using standard solution state conditions) 13 C NMR spectroscopy have been used to characterize a range of red algae that produce either agar or carrageenan . These techniques allow rapid determination of phycocolloid type within the algal tissue before extensive and time-consuming extractions and fractionations are carried out .

The gel state technique can be used on living or dried material . Gel state spectra give high resolution and, because of the expectation that they will be correlated with the extractable phycocolloid, provide promise of a powerful technique for screening potentially useful red algae .