Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2021, Vol. 42 ›› Issue (8): 2405-2412.DOI: 10.3969/j.issn.1000-2561.2021.08.037

• Post-harvest Treatment & Quality Safety • Previous Articles     Next Articles

Drying Characteristics and Kinetics of Fruit of Gardenia jasminoides Ellis with Solar Assisted Heat Pump Drying

DAI Yaping1,3, DENG Kaibo2,*(), Zhou Wei1,3, Li Jihua1,3, Cao Yupo1,2,3   

  1. 1. Key Laboratory of Tropical Crop Products Processing, Ministry of Agriculture and Rural Affairs / Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China
    2. College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
    3. Hainan Key Laboratory of Storage & Processing of Fruits and Vegetables, Zhanjiang, Guangdong 524001, China
  • Received:2020-11-09 Revised:2020-12-05 Online:2021-08-25 Published:2021-09-09
  • Contact: DENG Kaibo


In this study, a solar assisted heat pump drying technology was used to dry the fruit of Gardenia jasminoides Ellis. Seven kinds of drying models were used to solve the experimental data of drying characteristics to explore the moisture change of fruit of G. jasminoides Ellis during solar assisted heat pump drying under the conditions of loading density, drying temperature and material thickness, and determine coefficients of models by nonlinear regression. With the increase of loading density, the drying time of fruit of G. jasminoides Ellis increased gradually, and the drying rate increased first and then decreased. Different drying temperature and material thickness had significant influence on the drying rate of fruit of G. jasminoides Ellis. Verma Model is suitable for describing the moisture variation of fruit of G. jasminoides Ellis during the solar assisted heat pump drying. The maximum fitting value of R2 in the model could reach 0.9998, lower square sum of error (SSE) value was 0.0001 to 0.0088, and root mean square error (RMSE) value was 0.0024 to 0.3161. The research would provide technical support for the development of high-efficiency, energy-saving and nutrient rich dried the fruit of G. jasminoides Ellis.

Key words: fruit of Gardenia jasminoides Ellis, solar assisted heat pump drying, drying characteristics, kinetics

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