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Changes in potato starch quality during growth

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Summary

Potato starch quality parameters (amylose concentration, glucose-6-phosphate content and granule size) were analyzed in relation to the harvesting date and tuber size of four cultivars. A significant increase in the glucose-6-phosphate content and granule size of starch was observed during tuber growth, whereas the amylose concentration was constant. Granule size increased markedly, whereas glucose-6-phosphate content showed slightly increasing values with increasing tuber size. Amylose concentration showed no correlation with tuber size. We conclude that the changes in the granule size, glucose-6-phosphate and amylose content of potato starch during growth are independent of each other.

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Authors and Affiliations

  1. Department of Forage Crops and Potatoes, Research Centre Foulum, Danish Institute of Plant and Soil Science, P.O. Box 21, DK-8830, Tjele, Denmark

    D. H. Christensen & Marianne H. Madsen

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  1. D. H. Christensen
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  2. Marianne H. Madsen
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Christensen, D.H., Madsen, M.H. Changes in potato starch quality during growth. Potato Res 39, 43–50 (1996). https://doi.org/10.1007/BF02358205

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