Optimization and Experiment of Hot Air Drying Process of Cyperus esculentus Seeds

Xiaomeng Xia, Yvhan Jin, Huiyan Zhao, Gang Wang and Dongyan Huang ()
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Xiaomeng Xia: Key Laboratory of Bionics Engineering, Ministry of Education, Jilin University, Changchun 130025, China
Yvhan Jin: Key Laboratory of Bionics Engineering, Ministry of Education, Jilin University, Changchun 130025, China
Huiyan Zhao: Key Laboratory of Bionics Engineering, Ministry of Education, Jilin University, Changchun 130025, China
Gang Wang: Key Laboratory of Bionics Engineering, Ministry of Education, Jilin University, Changchun 130025, China
Dongyan Huang: Key Laboratory of Bionics Engineering, Ministry of Education, Jilin University, Changchun 130025, China

Agriculture, 2023, vol. 13, issue 3, 1-13

Abstract: To improve the drying efficiency, drying uniformity and germination rate after hot air drying of Cyperus esculentus seeds, this paper proposed a drying method that combines tempering and hot air drying. The drying curve of Cyperus esculentus was obtained by experiment. The influence of the drying method on the drying quality of Cyperus esculentus seeds and the trend of drying quality with the tempering process parameters (the tempering temperature, the moisture content of Cyperus esculentus at the beginning of tempering and the tempering duration) were analyzed by single-factor experiments. The regression models were established by star point design response surface methodology, and the relationships between the tempering process parameters and seed production quality indexes were analyzed. The results showed that the optimal combination of tempering process parameters was a tempering temperature of 24 °C, a moisture content of Cyperus esculentus at the beginning of tempering of 23%, and a tempering duration of 3 h. Under this combination, the tempering process increased the drying uniformity, germination rate and drying efficiency of Cyperus esculentus seeds by 21.122%, 4.205% and 22.832%, respectively. The error between the verification test value and the software optimization parameter value was acceptable. The study showed that the optimized tempering drying process significantly improved the drying quality of Cyperus esculentus seed production, and the results could provide a theoretical basis for production practices.

Keywords: hot air drying; tempering process; Cyperus esculentus; drying characteristics; drying uniformity; germination rate; drying efficiency (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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