Influence of surface esterification with alkenyl succinic anhydrides on mechanical properties of corn starch films

Phase transitions in starch based films containing fatty acids. Effect on water sorption and mechanical behaviour

“…Several works have focused on overcoming the inherent hydrophilicity of starch films, by surface esterification (Ren et al, 2010;Zhou, Ren, Tong, Xie, & Liu, 2009), surface photocrosslinking (Zhou, Zhang, Ma, & Tong, 2008) or blending starch with other hydrophobic materials, such as polycaprolactone and cellulose acetate (Averous, Moro, Dole, & Fringant, 2000;Fang & Fowler, 2003;Koenig & Huang, 1995). Other non-polar compounds, such as lipids, can also be combined with starch either by incorporating lipids in the hydrocolloid film-forming solution (emulsion technique) or by depositing lipid layers onto the surface of the pre-formed hydrocolloid film to obtain bilayers.…”

Preparation and Characterization of Octenyl Succinic Anhydride Modified Taro Starch Nanoparticles

“…Recently, much attention has been focused on polymeric composite materials filled with nano-sized particles called nanocomposites [ 1 ]. Starch nanoparticles (SNPs) are considered one of the most promising polymers for fabrication of polymer nanocomposites and degradable materials, due to their wide availability, biodegradability, impressive mechanical properties, and low permeability [ 2 ]. SNPs have been used as good reinforcing fillers in films of thermoplastic starch [ 3 – 5 ], polyurethane [ 6 ], polyvinyl alcohol [ 7 ], and soybean protein [ 8 ].…”

“…Based on its amphiphilicity, OSA-starch is used as an emulsifier and stabilizer in many food or oil-in-water systems, cosmetics, and pharmaceutical products [ 19 – 22 ]. Furthermore, surface modification through esterification by using OSA significantly increases tensile strength and Young's modulus of starch films [ 2 ].…”

Effect of dual chemical modification on the properties of biodegradable films from achira starch

“…Films from succinated achira starch showed the highest elongation values because the succinate groups reduce the number of interactions between starch molecules, increasing the mobility, and improving the elongation. [ 19 ] However, the presence of remnant granules observed by SEM (Figure 1) could have decreased the elongation and increased the stress to fracture. [ 33 ]…”

“…[ 8,17 ] Likewise, an improvement of mechanical properties such as elongation, tensile strength or Young's modulus has been reported. [ 18,19 ] The objective of this work was to evaluate the effect of hydrolysis and succination as a dual modification of achira starch on the mechanical properties, thermomechanical behavior, sorption isotherms, and WVP of films.…”