Effect of glycerol on behaviour of amylose and amylopectin films

Biodegradable films made from raw and acetylated cassava starch

“…For Gaudin et al (2000), the cause of this behavior has not been clearly elucidated, but it would appear that local molecular mobilities play a important role in the mechanisms involved. Myllärinen et al (2002) reported the same phenomenon for glycerol antiplasticization when it was used to plasticize amylose and amylopectin films. With low glycerol contents both tensile strain and elongation decreased, but above 20% glycerol, elongation reached larger values.…”

Thin Layer Drying Characteristics of Sweet Potato Starch Based Films and Mathematical Modelling

“…Amylose is primarily responsible for the film-forming ability and functional properties of starch-based films due to its recrystallization behavior after processing. Amylose forms strong and flexible films whereas amylopectin produces weak and brittle ones [17,18]. The basic process for preparation of films involves evaporation of solvent from polymer solution and thus forming solid coating on substrate.…”

A Function of Thermoplastic Starch Blends from Tapioca Waste Based on Mechanical Properties and Morphology

“…TPS has a high glass transition temperature (Tg) and is sensitive to humidity. These are the limitations of starch-based biodegradable materials [9]. The addition of glycerol as a plasticizer to cooperate with the starch improves the flexibility and processability.…”