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A study on deterioration of postharvest cane

Report of the Taiwan Sugar Research Institute 0(161): 23-33, Sept

A study on deterioration of postharvest cane

The postharvest deterioration rates of 12 sugarcane cultivars were determined by the reducing sugar content in the juice measured by the 2,4 Dinitrophenol absorptionmetry method. The plants were harvested in mid-January and piled up in the field for 4 days. The results showed that ROC20 and ROC23 were slower and ROC15 and ROC10 faster than other varieties in postharvest deterioration. ROC10 and ROC15 had higher reducing sugar content than the other 10 varieties 2 days after harvest, whereas ROC20 and ROC23 had low reducing sugar content 4 days after harvest. Generally, the sugarcane varieties tested significantly deteriorated 4 days after harvest. Higher temperature hastens cane deterioration. At the temperature of 30 degreeC, it was found that chopped cane increased sharply in reducing sugar the 2nd day after harvest, and steadily increased on the 3rd and 4th day, while it increased slowly in reducing sugar on the 1st to the 4th days after harvest at 20 degreeC. The amount of reducing sugar at 30 degreeC is about 1.2 to 1.8 times as large as that at 20 degreeC.

Accession: 003027689

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