The effect of low-temperature storage on the sugar content of table potato cultivars
2015
Matsuura-Endo, C. (NARO Hokkaido Agricultural Research Center, Kasai, Hokkaido (Japan)) | Ishiguro, K. | Takigawa, S. | Noda, T. | Hasa, Y.
The effect of low-temperature storage on the sugar content of table potato cultivars was investigated. Cultivar-specific differences in sugar content during storage were observed. Specifically, the potato varieties 'Inca-no-mezame' and 'Inca-no-hitomi' showed a remarkable increase in sugar content with long-term storage at low temperature. In 'Inca-no-mezame', tubers harvested from two different fields showed similar total sugar content after one-month storage under identical storage conditions. Altering the storage temperature from 2degC to room temperature decreased sugar content by 40% and 50-70% at one week and one month, respectively. Following one week of storage at room temperature, sugar content was restored to 80% of the original value by storage at 4degC for 3 weeks.
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