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  • Menzel, CarolinSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för livsmedelsvetenskap,Department of Food Science,SLU Swedish University of Agricultural Sciences, Sweden (author)

Improved material properties of solution-cast starch films : Effect of varying amylopectin structure and amylose content of starch from genetically modified potatoes

  • Article/chapterEnglish2015

Publisher, publication year, extent ...

  • Elsevier BV,2015
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:ri-761
  • https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-761URI
  • https://doi.org/10.1016/j.carbpol.2015.05.024DOI
  • https://res.slu.se/id/publ/69573URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • High-amylose potato starches were produced through genetic modification resulting in changed granule morphology and composition, with higher amylose content and increased chain length of amylopectin. The increased amylose content and structural changes in amylopectin enhanced film-forming behavior and improved barrier and tensile properties in starch films. The molecular structure in these starches was related to film-forming properties. Solution-cast films of high-amylose starch revealed a homogeneous structure with increasing surface roughness at higher amylose content, possibly due to amylose aggregation. Films exhibited significantly higher stress and strain at break compared with films of wild-type starch, which could be attributable to the longer chains of amylopectin being involved in the interconnected network and more interaction between chains, as shown using transmission electron microscopy. The oxygen permeability of high-amylose starch films was significantly decreased compared with wild-type starch. The nature of the modified starches makes them an interesting candidate for replacement of non-renewable oxygen and grease barrier polymers used today.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Andersson, MarietteSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtförädling,Department of Plant Breeding,SLU Swedish University of Agricultural Sciences, Sweden(Swepub:slu)49880 (author)
  • Andersson, RogerSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för livsmedelsvetenskap,Department of Food Science,SLU Swedish University of Agricultural Sciences, Sweden(Swepub:slu)50963 (author)
  • Vázquez Gutiérrez, Jose LuisSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för livsmedelsvetenskap,Department of Food Science,SLU Swedish University of Agricultural Sciences, Sweden(Swepub:slu)97469 (author)
  • Daniel, GeoffreySwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för skogens produkter,Department of Forest Products,SLU Swedish University of Agricultural Sciences, Sweden(Swepub:slu)47230 (author)
  • Langton, MaudSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för livsmedelsvetenskap,Department of Food Science,SLU Swedish University of Agricultural Sciences, Sweden; CSIRO Commonwealth Scientific and Industrial Research Organisation, Australia(Swepub:slu)50925 (author)
  • Gällstedt, MikaelRISE,Innventia (author)
  • Koch, KristineSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för livsmedelsvetenskap,Department of Food Science,SLU Swedish University of Agricultural Sciences, Sweden(Swepub:slu)46674 (author)
  • Sveriges lantbruksuniversitetInstitutionen för livsmedelsvetenskap (creator_code:org_t)
  • Sveriges lantbruksuniversitet

Related titles

  • In:Carbohydrate Polymers: Elsevier BV130, s. 388-3970144-86171879-1344

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