Czech J. Food Sci., 2008, 26(1):48-57 | DOI: 10.17221/1136-CJFS

Sloughing in potatoes induced by tuber density and affected by variety

Anna Hejlová, Jiĝí Blahovec
Faculty of Engineering, Czech University of Life Sciences Prague, Prague-Suchdol, Czech Republic

Two cultivars (Nicola and Saturna) largely distinguishing from each other in cooking behaviour and one cultivar (Agria) grown in six different cultivation regimes were tested by the CPEM (cooked potato effective mass) method for the potato sloughing assessment. The sloughing process is characterised by two cooking and disintegration stages, from which two basic CPEM parameters are derived: cooking time as the starting point of disintegration and the rate of the disintegration. Both parameters are analysed as functions of the tuber density in linear models of both stages. Significant differences in CPEM parameters and in the linear models were observed between different varieties. The data from two-year measurements were in basic agreement with our previous concept of the limited contribution of starch in the first cooking stage and of its more important role in the second disintegration stage of sloughing. The results indicated a close association between the mechanisms controlling sloughing and the tuber density in the cultivars Agria and Saturna. A different cooking behaviour was observed in the case of the typical salad cultivar Nicola with a considerably lower cooking time sensitivity to the tuber density.

Keywords: potato; cooking; texture; effective mass; sloughing; disintegration; density

Published: February 29, 2008  Show citation

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Hejlová A, Blahovec J. Sloughing in potatoes induced by tuber density and affected by variety. Czech J. Food Sci. 2008;26(1):48-57. doi: 10.17221/1136-CJFS.
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    References

    1. Alvarez M.D., Canet W. (2000): Storage time effect on the rheology of refrigerated potato tissue (cv. Monalisa). European Food Research and Technology, 212: 48-56. Go to original source...
    2. Anonymous (1977): Methods of assessment for potatoes and potato products. EAPR. Pudoc, Wageningen: 48.
    3. Blahovec J. (2005a): Density and shape characteristics of Agria tubers cultivated under different conditions. Research in Agricultural Engineering, 51: 1-6. Go to original source...
    4. Blahovec J. (2005b): Impact induced mechanical damage of Agria potato tubers. Research in Agricultural Engineering, 51: 39-43. Go to original source...
    5. Blahovec J., Hejlová A. (2006): Role of tuber density in potato sloughing. Journal of Texture Studies, 37: 165-178. Go to original source...
    6. Böhler G., Escher F., Solms J. (1987): Evaluation of cooking quality of potatoes using sensory and instrumental methods. II. Instrumental evaluation. Lebensmittel, Wissenschaft und Technologie, 20: 207-216.
    7. Freeman M., Jarvis M.C., Duncan H.J. (1992): The textural analysis of cooked potato. 3. Simple methods for determining texture. Potato Research, 35: 103-109. Go to original source...
    8. Hejlová A., Blahovec J. (2006): Sloughing in potatoes induced by tuber density and affected by variety.In: Systems and Technology. 17th International Congress of Chemical and Process Engineering CHISA 2006, Prague, August 27.-31. 2006, Summaries 5: 1840-1841 (full text: CD, paper No. P1.272).
    9. Hejlová A., Blahovec J. (2007): Role of cultivation conditions in potato sloughing as indicated by CPEM method. Plant, Soil and Environment, 53: 403-412. Go to original source...
    10. Hejlová A., Blahovec J., Vacek J. (2004): Sloughing of potatoes cultivated under different conditions. In: Systems and Technology. 16th International Congress of Chemical and Process Engineering CHISA 2004, Prague, August 22.-26. 2004, Summaries 5: 1695-1696 (full text: CD, paper No. I3.5).
    11. Hejlová A., Blahovec J., Vacek J. (2006): Modified test for potato sloughing assessment. Journal of Food Engineering, 77: 411-415. Go to original source...
    12. Hoff J.E. (1973): Chemical and physical basis of texture in horticultural products. HortScience, 8: 108-110. Go to original source...
    13. Jarvis M.C., Duncan H.J. (1992): The textural analysis of cooked potato. 1. Physical principles of the separate measurement of softness and dryness. Potato Research, 35: 83-91. Go to original source...
    14. Jarvis M.C., Mackenzie E., Duncan H.J. (1992): The textural analysis of cooked potato. 2. Swelling pressure of starch during gelatinisation. Potato Research, 35: 93-102. Go to original source...
    15. Matsuura-Endo C., Ohara-Takada A., Yamauchi H., Mori M., Fujikawa S. (2002a): Disintegration differences in cooked potatoes from three Japanese cultivars: Comparison of starch distribution within one tuber and morphology of tissue. Food Science and Technology Research, 8: 252-256. Go to original source...
    16. Matsuura-Endo C., Ohara-Takada A., Yamauchi H., Mori M., Ishibasi K. (2002b): Disintegration differences in cooked potatoes from three Japanese cultivars: Comparison of the properties of isolated starch, degree of cell separation with EDTA, and contents of calcium and galacturonic acid. Food Science and Technology Research, 8: 323-327. Go to original source...
    17. Vacek J. (1997): Study of potato sloughing. In: Kutzbach H.D., Blahovec J. (eds): Proceedings of the International Workshop Quality Assessment of Plant Products. Prague, May 30, 1997: 29-32.
    18. van Es A., Hartmans K.J. (1987): Structure and chemical composition of the potato. In: Rastovski A., van Es A. (eds): Storage of Potatoes. Pudoc, Wageningen: 39, 47.
    19. van Marle J.T., van Dijk C., Voragen A.G.J., Biekman E.S.A. (1994): Comparison of the cooking behaviour of the potato cultivars Nicola and Irene with respect to pectin breakdown and the transfer of ions. Potato Research, 37: 183-195. Go to original source...
    20. von Scheele C., von Svensson G., Rasmussen J. (1937): Die Bestimmung des Stärkegehaltes und der Trockensubstanz der Kartoffel mit Hilfe des spezifischen Gewichts. Die Landwirtschaftlichen Versuchsstationen, 127: 67-96.
    21. Warren D.S., Woodman J.S. (1974): The texture of cooked potatoes: A review. Journal of the Science of Food and Agriculture, 25: 129-138. Go to original source...
    22. Woodman J.S., Warren D.S. (1972): Texture of canned potatoes: Use of new objective methods to separate the attributes of mouthfeel and breakdown. Journal of the Science of Food and Agriculture, 23: 1067-1077. Go to original source...

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