On the presence of starch bound phosphate in potato leaf starch

Abstract

The presence of starch-bound phosphate in potato leaves collected late afternoon in the middle of July when the starch content is high (12.9% dry matter basis) was studied. Starch was extracted from the leaves with dimethylsulphoxide and fragments of starch were purified by ultrafiltration in two steps in combination with an alpha-amylase hydrolysis. The fragments were analysed with P-31-NMR and no signals corresponding to phosphate monoesters linked to glucose at the C-3 and/or C-6 positions were detected. The results show that starch in potato leaves does not contain any detectable amounts of phosphate monoesters. (c) 2004 Published by Elsevier Ltd

Published in

Carbohydrate Polymers
2005, Volume: 59, number: 4, pages: 537-539 Publisher: ELSEVIER SCI LTD

SLU Authors

• Santacruz, Stalin

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Andersson, Roger

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

• Åman, Per

  • Department of Molecular Sciences, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Food Science


Publication identifier

DOI: https://doi.org/10.1016/j.carbpol.2004.09.020

Permanent link to this page (URI)

https://res.slu.se/id/publ/7151