- Tytuł:
- Investigation of Starch Hydration by 2D Time Domain NMR
- Autorzy:
-
Witek, M.
Peemoeller, H.
Szymońska, J.
Blicharska, B. - Powiązania:
- https://bibliotekanauki.pl/articles/2044693.pdf
- Data publikacji:
- 2006-03
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
82.56.Na
82.35.Pq - Opis:
- Proton exchange between spin groups of the solid matrix of hydrated granular potato starch and water was studied using the 2D time domain NMR. The proton spin-spin relaxation time T$\text{}_{2}$, and spin-lattice relaxation time T$\text{}_{1}$ (selective and non-selective pulse sequences) were measured at room temperature. The observed spin relaxation results were analysed for exchange assuming a two-site exchange model (between water and solid matrix of starch). In this analysis we determined the intrinsic spin-lattice relaxation time for water protons (49 ms) and solid starch matrix protons (172 ms), as well as the water-starch magnetization exchange rate (86 s$\text{}^{-1}$).
- Źródło:
-
Acta Physica Polonica A; 2006, 109, 3; 359-364
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł