Revista de Ingeniería

revinge | eISSN 2011-0049 | ISSN 0121-4993

Morphological Characterization of Native Starch Granule: Appearance, Shape, Size and its Distribution

No. 27 (2008-05-01)
  • Jorge Alberto Medina
    Ph.D. Director del Centro de Investigación en Procesamiento de Polímeros (CIPP), Profesor asociado, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de los Andes. Bogotá D.C., Colombia.
  • Juan Camilo Salas
    Estudiante de Ingeniería Mecánica e Industrial. Asistente de pregrado de Ingeniería Mecánica del Centro de Investigación en Procesamiento de Polímeros (CIPP), Facultad de Ingeniería, Universidad de los Andes, Bogotá D.C., Colombia. j-salas1@uniandes.edu.co
https://doi.org/10.16924/revinge.27.6

Abstract

Size and nature of native starch granules influence in its processability as thermoplastic. These characteristics depend upon culture practices and world location. Through light microscopy, the native national corn, cassava and potato starch granule was morphologically characterized. There were significant differences in size, shape and surface. It was concluded that hilum is preferentially located in the center of granule for first and second sources. In the third is located eccentrically. The corn starch median granular size was in agreement with other authors; in potato, it differs. Size distribution in cassava and corn agree with previous experiences.

Keywords: Starch, morphology, Light microscopy, biodegradable plastics