Potato composition: I. Tissue selection and its effects on solids content and amylose/amylopectin ratios |
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| Authors: | M L Weaver H Timm M Nonaka R N Sayre R M Reeve R M McCready L C Whitehand |
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| Institution: | 1. Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 94710, Berkeley, California
2. Department of Vegetable Crops, University of California, 95616, Davis, California
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| Abstract: | Solids content and amylose/amylopectin ratios were determined in different parts of tubers of White Rose, Red La Soda, Kennebec, Russet Burbank, Norchip and Lenape at harvest, after storage at 7 C for 2 and 4 mo, and after reconditioning at 20 C for 3 wk following each storage period. In all cultivars, solids content was greatest in stem-end, lower in bud-end and lowest in core tissue. The relationships for distribution of solids among the different parts of the tubers was not changed by storage treatments in any of the cultivars. Amylose/amylopectin ratios were similar in all parts of the tuber. Both the solids content and amylose/amylopectin ratio were changed by storage, but not uniformly in all cultivars. |
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