Messungen der magnetischen Relaxationszeiten der Protonen in nativen Stärken mit verschiedenen Wassergehalten

Abstract

Measurements of the magnetic relaxation times of the protons in native starches with different water contents. The magnetic relaxation times T₁ and T₂ of the protons of some samples of native starches have been studied to get an idea of the mobility of the water molecules being adsorbed or connected to the starch by capillary condensation. The measurement of T₂ in all starches shows two ranges of mobility above water contents of about 15%. The residence probability in the two ranges of different mobility could be estimated. The longitudinal relaxation time T₁ showed uniform behaviour. The results are in correspondence with the results of other methods of investigation.