| Título: | Mechanical and thermal properties of yam starch films |
| Autores: | MALI, SUZANA /et al/ |
| Tipo de documento: | texto impreso |
| ISBN/ISSN/DL: | 30421 |
| Langues: | Inglés |
| Clasificación: | |
| Resumen: | Yam starch films were prepared by casting using glycerol as plasticizer. The effects of different film thicknesses (0.07, 0.09, 0.11 mm), glycerol (1.30, 1.65 and 2.00 g/100 g of filmogenic solution) and starch (3.30, 3.65 and 4.00 g/100 g of filmogenic solution) concentrations were evaluated in mechanical properties of these films. Films with high puncture strengths were obtained at higher thickness, higher starch concentration and lower glycerol concentration. Puncture deformation increased with glycerol content. Tensile tests showed that with increasing of glycerol concentration, the films became more flexible, with higher strain at break values and lower stress and Young’s Modulus. Glass transition temperatures (Tg) of films were affected by glycerol and starch concentration |
| Nota de contenido: | En: Food Hydrocolloids (19) 157–164 (2005) |
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