THE VISCOSITY MEASUREMENTS OF MOLECULAR WEIGHTS OF POMELO PECTIN
- VernacularTitle:粘度法测定柚皮果胶分子量
- Author:
Changwen ZHAO
;
Lisha ZHANG
;
Jinming LIN
;
Tingyuan LI
- Publication Type:Journal Article
- From:
Academic Journal of Second Military Medical University
1982;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
The number average molecular weights of five fractionated samples of pomelo pectin were determined osmometrically in aqueous solution. The values of Mn ranged from 4.74?104 to 1.83?144 for different fractions.From the data of osmotic pressure and intrinsic viscosity, the [?]-M relation obtained is[?]3.23?10-7M1.75in 0.9% NaCl solution of pH 4.83 at 37℃.
