Biodegradable foam tray from cassava starch blended with natural fiber and chitosan

作者：Kaisangsri Nattapon; Kerdchoechuen Orapin^*; Laohakunjit Natta

来源：Industrial Crops and Products, 2012, 37(1): 542-546.

DOI：10.1016/j.indcrop.2011.07.034

• Biopolymers
• Cassava starch
• Biodegradable foam
• Kraft fiber
• Chitosan

This work developed biodegradable foam trays from cassava starch blended with the natural polymers of fiber and chitosan. The kraft fiber at 0, 10, 20, 30 and 40% (w/w of starch) was mixed with cassava starch solution. Chitosan solution at 0, 2, 4 and 6% (w/v) was added into starch/fiber batter with 1:1. Hot mold baking was used to develop the cassava starch-based foam by using an oven machine with controlled temperature at 250 degrees C for 5 min. Results showed that foam produced from cassava starch with 30% kraft fiber and 4% chitosan had properties similar to polystyrene foam. Color as L', a' and b' value of starch foam tray was slightly increased. Density, tensile strength and elongation of the starch-based foam were 0.14 g/cm(3), 944.40 kPa and 2.43%, respectively, but water absorption index (WAI) and water solubility index (WSI) were greater than the polystyrene foam.

• 出版日期2012-5