title: Preparation and Characterization of Octenyl Succinic Anhydride Modified Taro Starch Nanoparticles.
abstract: The polar surface and hydrophilicity of starch nanoparticles (SNPs) result in their poor dispersibility in nonpolar solvent and poor compatibility with hydrophobic polymers, which limited the application in hydrophobic system. To improve their hydrophobicity, SNPs prepared through self-assembly of short chain amylose debranched from cooked taro starch, were modified by octenyl succinic anhydride (OSA). Size via dynamic light scattering of OSA-SNPs increased compared with SNPs. Fourier transform infrared spectroscopy data indicated the OSA-SNPs had a new absorption peak at 1727 cm-1, which was the characteristic peak of carbonyl, indicating the formation of the ester bond. The dispersibility of the modified SNPs in the mixture of water with nonpolar solvent increased with increasing of degree of substitution (DS). OSA-SNPs appear to be a potential agent to stabilize the oil-water systems.
authors.affiliation: School of Food Science and Engineering, Qingdao Agricultural University, Shandong, China.
authors.forename: Suisui
authors.initials: S
authors.lastname: Jiang
authors.affiliation: School of Food Science and Engineering, Qingdao Agricultural University, Shandong, China.|College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Dai
authors.affiliation: School of Food Science and Engineering, Qingdao Agricultural University, Shandong, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Qin
authors.affiliation: School of Food Science and Engineering, Qingdao Agricultural University, Shandong, China.
authors.forename: Liu
authors.initials: L
authors.lastname: Xiong
authors.affiliation: School of Food Science and Engineering, Qingdao Agricultural University, Shandong, China.
authors.forename: Qingjie
authors.initials: Q
authors.lastname: Sun
mesh_terms: D031060:Colocasia; D057927:Hydrophobic and Hydrophilic Interactions; D053758:Nanoparticles / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013213:Starch / Q000031:analogs & derivatives* / Q000737:chemistry
chemical_list: C551966:octenyl succinic anhydride-modified starch; D013213:Starch