title: [Electron microscopic study of pectin solutions].
abstract: Electron microscopic study was carried out of the structure of pectin 0.01% aqueous solutions according to esterification degree at different pH medium. Preparations were prepared by freezing-drying method of solution drop on the formvar film and by the negative contrasting method. Microfibrils of 60-180 A diameter were found. Their aggregation increased with a decrease of the charge of pectin macromolecule (increase of esterification, decrease of pH).
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004951:Esterification; D006863:Hydrogen-Ion Concentration; D008854:Microscopy, Electron; D010368:Pectins; D012996:Solutions
chemical_list: D012996:Solutions; D010368:Pectins
vernacular_title: Elektronno-mikroskopicheskoe issledovanie rastvorov pektina.