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Can I read Microstructural Characterization of Yam Starch Films on EtoBox?
Microstructural Characterization of Yam Starch Films by Suzana Mali; Maria Victória E Grossmann; Maria A Garcia; Miriam N Martino; Noemi E Zaritzky is a Materials Science article available to read on EtoBox.
What is Microstructural Characterization of Yam Starch Films about?
Yam starch films were produced by thermal gelatinization of starch suspensions using different starch and glycerol concentrations and were compared to control samples without glycerol. Films were characterized by polarized light microscopy, scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermomechanical analysis (TMA), X-ray diffraction, water vapor permeability (WVP) and water sorption isotherms. The polarized light microscopy and DSC data showed that starch gelatinization for film formation was complete. Plasticized films have a homogeneous structure as observed by SEM. At water activities .0.43, glycerol increased the equilibrium moisture content of the films due to its hydrophilic character. X-ray pattern of the yam films could be assigned to a B-type starch; during storage this pattern remained almost the same, however a slight recrystallization process could be observed. Amylopectin retrogradation was not observed by DSC with storage time of the films. Glass transition temperatures of films with glycerol were lower than those of control films as measured by DSC and TMA. WVP of yam starch films increased with the presence of glycerol.
Who reads Microstructural Characterization of Yam Starch Films?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Suzana Mali; Maria Victória E Grossmann; Maria A Garcia; Miriam N Martino; Noemi E Zaritzky
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0144-8617)
- Published
- 2002
- Language
- EN
- Field
- Materials Science (Physical Sciences)