Quality of Postharvest Papaya and Prediction of its Sugar Consumption using Chemical Model
Fresh papaya is more susceptible to disease organisms because of increase in the respiration rateafter 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 modifiedatmospheric environment has been built based on chemical kinetics. The model is parameterized withexperimental data obtained at temperatures 8, 18 and 28 ℃ and evaluated at 13 ℃ by the closed systemmethod. The indicators of the mean absolute percentage error (MAPE %) and the correlation coefficient r areused to verify the performance of the created model respectively. The results indicated that TSS, TS contentand 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. Thesugar consumption calculated by the respiration model was found to have a good agreement with thoseobtained experimentally.
Chang-Ying HU Mei-Ling HOU Yu-Mei WU Juan CHENG Zhi-Wei WANG Hua-Wei DUAN
Department of food science and engineering, Jinan University, Guangzhou, P.R.China Packaging engineering institute, Jinan University, Zhuhai, P.R.China
国际会议
The 17th IAPRI World Conference on Packaging(第17届世界包装大会)
天津
英文
275-278
2010-10-12（万方平台首次上网日期，不代表论文的发表时间）