Durchstrahlungselektronenmikroskopische Untersuchung des Lösungszustandes technischer Dextrine nach Gefrierätzung

Publisher Website
Google Scholar
Abstract
Transmission Electron Microscopic Studies on the Solubilization State of Industrial Dextrins after Freeze‐Etching. The solubilization state of dextrins is discernible after freeze‐etching as a preparation method for transmission electron microscopic investigations. A just disintegrated dextrin on the basis of potato starch is composed of obviously native granula with diameters from 100 to 200 nm. After uncomplete disintegration these granula keep unchanged despite of a ripening process of several months. Only a higher grade of agglomeration of the granula can be observed. However, the granula of a completely disintegrated dextrin subject to a swelling and solvatation process during which the phase boundary between the granula and the water as solvent is disappearing more and more.