| Autor: |
Velde, F. van de, Peppelman, H.A., Rollema, H.S., Tromp, R.H. |
| Přispěvatelé: |
Centraal Instituut voor Voedingsonderzoek TNO |
| Jazyk: |
angličtina |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Carbohydrate Research, 3, 331, 271-283 |
| Popis: |
The coil-to-helix transition and temperature dependence of the viscosity of commercial κ/ι-hybrid carrageenans produced by the red algae Sarcothalia crispata, Mazaella laminarioides, and Chondrus crispus were studied using rheometry and optical rotation. The structure of these κ/ι-hybrid carrageenans was determined by 1H and 13C NMR spectroscopy combined with monosaccharide composition analysis. The coil-to-helix transitions, measured by polarimetry and rheometry, of the κ/ι-hybrid carrageenans are significantly different from those of pure κ- and ι-carrageenan, and from hand-made mixtures thereof. This provides evidence that the κ/ι-hybrid carrageenans are mixed chains, containing both κ- and ι-repeating units. © 2001 Elsevier Science Ltd. Chemicals/CAS: Carrageenan, 9000-07-1; Monosaccharides; Potassium Chloride, 7447-40-7 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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