title: The conformational transitions in organic solution on the cress seed gum nanoparticles production.
abstract: The seeds of Lepidium sativum (garden cress) were selected as a new hydrocolloid source to fabricate cress seed gum nanoparticles (CSGN) by the desolvation method. The intrinsic viscosity of the CSGN solutions was measured to evaluate the conformational differences of the CSG resulted by the various production conditions. The intrinsic viscosity of CSGN solutions was estimated by using various models, i.e. Huggins, Kraemer, Tanglertpaibul-Rao and Higiro, and then the intrinsic viscosity was an objective function aimed at optimizing the conditions for the solubilization of CSG nanoparticles by the response surface method. The results indicated that among the conditions for the preparation of nanoparticles, acetone and gum concentrations had significant effects on the intrinsic viscosity of nanoparticles. Hereby, CSG served as a source of anionic polyelectrolyte molecules in dilute solutions with acetone-water mixtures. This compound goes on to display a coil-globule transition above a certain threshold of acetone.
authors.affiliation: Food Hydrocolloid Research Center, Department of Food Science and Technology, Ferdowsi University of Mashhad, Mashhad 91775-1163, Iran.
authors.forename: Afsaneh
authors.initials: A
authors.lastname: Taheri
authors.affiliation: Food Hydrocolloid Research Center, Department of Food Science and Technology, Ferdowsi University of Mashhad, Mashhad 91775-1163, Iran. Electronic address: s.razavi@um.ac.ir.
authors.forename: Seyed M A
authors.initials: SM
authors.lastname: Razavi
mesh_terms: D000096:Acetone / Q000737:chemistry; D019607:Brassicaceae; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D053149:Plant Gums / Q000737:chemistry*; D012639:Seeds; D012996:Solutions; D012997:Solvents; D014783:Viscosity
chemical_list: D053149:Plant Gums; D012996:Solutions; D012997:Solvents; D000096:Acetone
keywords: Desolvation; Hydrocolloid; Intrinsic viscosity; Nanotechnology