Abstract
Tissue selected from the stem- and bud-end of reconditioned tubers having sugar-end disorder was compared by color after frying and chemical composition to tissue removed from the two ends of tubers without sugar-end disorder taken directly from cold storage at 45 F, and after reconditioning 3 weeks at 70 F. Chemical analyses of selected tissue suggested that the dark finish-fry color at the stem-end of sugar-end tubers following reconditioning at 70 F was due to the inability of the physiological systems within the tissue to convert reducing sugars to starch and/or to use these sugars in the respiratory process. Of the components analyzed, only a high reducing sugar content was associated with a dark finish-fry color. Neither sucrose nor free amino acid content was associated with the sugar-end disorder. Extending the reconditioning period at 70 F for sugar-end tubers did not lower the reducing sugar content or the darkening of the stem-end tissue on frying.
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Literature Cited
Anderton, J. 1953. The nonenzymatic browning of food products. The British Food Manufacturing Industries Association, Scientific and Technical Surveys 21: 1–82.
Brown, M. S. and J. W. Morales. 1970. Determination of blanching conditions for frozen par-fried potatoes. Amer. Potato J. 47: 323–325.
Federer, W. T. 1955. Experimental Design. 5th Ed., Macmillan Company, New York, N. Y.
Heinze, P. H., M. E. Kirkpatrick and E. F. Dochternan. 1955. Cooking quality and compositional factors of potatoes of different varieties from several commercial locations. U.S. Dept. Agr. Tech. Bull. 1106, pp. 69.
Kirkpatrick, M., P. H. Heinze, C. C. Craft, B. M. Mountjoy and C. E. Falatko. 1956. French-frying quality of potatoes as influenced by cooking methods, storage conditions, and specific gravity of tubers. U.S. Dept. Agr. Tech. Bull. 1142, pp. 46.
McCready, R. M., E. D. Ducay and M. A. Gauger. 1971. Automation of sugar and starch analysis in potatoes using a dinitrosalicylate color reaction. Anal. Biochem. (in press).
Shallenberger, R. S., O. Smith and R. H. Treadway. 1959. Role of the sugars in the browning reaction in potato chips. J. Agr. Food Chem. 7: 274–277.
Snedecor, G. W. 1956. Statistical Methods. 5th Ed., Iowa State College Press, Ames, Iowa.
Terman, G. L., M. Gowen and C. E. Cunningham. 1950. Effect of storage temperature and size on French fry quality, shrinkage, and specific gravity of Maine potatoes. Amer. Potato J. 27: 417–424.
Walada, A. E. and K. Kunkel. 1954. The variation in reducing sugar content in different varieties of potatoes. Amer. Potato J. 32: 132–140.
Weaver, M. L., E. Hautala and W. M. Iritani. 1970. Studies on sugar-end in Russet Burbank potatoes. Amer. Potato J. 47: 361 (abstract).
Weaver, M. L. and E. Hautala. 1971. Leaching of French fried potato strips. Amer. Potato J. 48: 199–205.
White, L. M. and M. A. Gauger. 1967. Simultaneous automated determination of L-lysine and total amino acids in seed hydrolysates. Atomation in Analytical Chemistry. Vol. I. Technicon Symposia, Mediad Incorporated, White Plains, N. Y. 10601.
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Weaver, M.L., Hautala, E., Nonaka, M. et al. Sugar-end in Russet Burbank potatoes. American Potato Journal 49, 376–382 (1972). https://doi.org/10.1007/BF02864835
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DOI: https://doi.org/10.1007/BF02864835