Summary
Kennebec and White Rose potatoes harvested at different dates were exposed for 2 or 4 days to temperatures above 25 C, then transferred to 20 C. Increase in concentration of total sugars was stimulated by exposure to high temperature, but diminished during holding at lower temperature. Reducing sugars were not affected similarly. High total sugar concentration enhanced darkening of chips. Light-colored chips were obtained from tubers transferred to 20 C after exposure to high temperature, provided tubers had a low reducing sugar concentration.
Resumen
Papas Kennebec y White Rose cosechadas en fechas diferentes fueron expuestas durante 2 0 4 días a temperaturas mayores de 25 C y después transferidas a 20 C. Incremento en concentración de azúcares totales fué estimulado a causa de la alta temperatura pero disminuyó durante la preservación a la temperatura más baja. Azúcares reductores no fueron afectados de una manera similar. Una total alta concentración de azúcares dió papas fritas más obscuras. Papas fritas de color más ligero fueron obtenidas de tubérculos transferidos a 20 C después de haber sido expuestos a temperaturas más altas, cuando estos tubérculos contenían una baja concentración de azúcares reductores.
Similar content being viewed by others
Literature Cited
Beale, W. L., D. Hunter and F. J. Stevenson. 1966. Potato chip color reversion. Amer. Potato J. 43: 355–360.
Burton, W. G. 1965. The sugar balance in some British potato varieties during storage. I. Preliminary observations. Eur. Potato J. 8: 80–91.
Clegg, M. D. and H. W. Chapman. 1962. Sucrose content of tubers and discoloration of chips from early summer potatoes. Amer. Potato J. 39: 212–216.
Grigg, F. N. 1962. Processing California long white potatoes. Twelfth Natl. Potato Util. Conf., p. 22–23.
Hassid, Z. 1936. Determination of reducing sugars and sucrose in plant materials. Ind. & Eng. Chem., Anal. Ed. 8: 138–140.
Kehr, A. E., R. V. Akeley, and G. V. C. Houghland. 1964. Commercial potato production. A.R.S., U.S.D.A. Handbook No. 267.
Nielsen, L. W. and F. A. Todd. 1946. Bacterial soft rot of Irish potatoes as influenced by sublethal temperatures. Sugar and permeability changes in the tubers. Amer. Potato J. 23: 73–87.
Rose, D. H. and H. T. Cook. 1949. Handling, storage, transportation, and utilization of potatoes. U.S.D.A. Biblio. Bull. 11, 163 pp.
Samotus, B. and S. Schwimmer. 1962. Predominance of fructose accumulation in cold-stored immature potato tubers. J. Food Sci. 27: 1–4.
Schwimmer, S., A. Bevenue, W. J. Weston, and A. L. Potter. 1954. Potato composition. Survey of major and minor sugar and starch components of the white potato. Agr. & Food Chem. 2: 1284–1290.
Timm, H., J. C. Bishop, and V. H. Schweers. 1963. Growth, yield, and quality of White Rose potatoes as affected by plant population and levels of nitrogen. Amer. Potato J. 40: 182–192.
Yamaguchi, M., H. Timm, M. D. Clegg, and F. D. Howard. 1966. Effect of stage of mautrity and postharvest conditions on sugar conversion and chip quality of potato tubers. Proc. Amer. Soc. Hort. Sci. 89: 456–463.
Author information
Authors and Affiliations
Additional information
Former Graduate Assistant
Private communication from Mr. William B. Corrin, Agronomist, Granny Goose Foods, Oakland, California.
An erratum to this article is available at http://dx.doi.org/10.1007/BF02863031.
Rights and permissions
About this article
Cite this article
Timm, H., Yamaguchi, M., Clegg, M.D. et al. Influence of high-temperature exposure on sugar content and chipping quality of potatoes. American Potato Journal 45, 359–365 (1968). https://doi.org/10.1007/BF02849713
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02849713