Quality of Postharvest Papaya and Prediction of its Sugar Consumption using Chemical ModelReport as inadecuate




Quality of Postharvest Papaya and Prediction of its Sugar Consumption using Chemical Model - Download this document for free, or read online. Document in PDF available to download.

Fresh papaya is more susceptible to disease organisms because of increase in the respiration rate after harvesting. The changes of main composition of papaya such as total soluble solids TSS, total sugars TS, and sugar-acid ratio SAR are studied. The model of the respiration rate of papaya in modified atmospheric environment has been built based on chemical kinetics. The model is parameterized with experimental data obtained at temperatures 8, 18 and 28 °C and evaluated at 13 °C by the closed system method. The indicators of the mean absolute percentage error MAPE % and the correlation coefficient r are used to verify the performance of the created model respectively. The results indicated that TSS, TS content and the sugar-acid ratio of half-ripe fruits reached the peak on day 16, and then showed a declining trend. Meanwhile the above three elements of the full-ripe ones were decreasing all the time during the storage. The sugar consumption calculated by the respiration model was found to have a good agreement with those obtained experimentally.

KEYWORDS

papaya; quality; sugar consumption; chemical model

Cite this paper







Author: Chang-Ying Hu, Mei-Ling Hou, Yu-Mei Wu, Juan Cheng, Zhi-Wei Wang, Hua-Wei Duan

Source: http://www.scirp.org/



DOWNLOAD PDF




Related documents