Optimization of steaming, drying, and tempering pretreatments for improving shelling of extra-large cashew nuts

In this research, the response surface methodology with a polynomial model was used to represent the experimental data of the combination of steaming, drying, and tempering process for extra-large cashew nuts. The desired values of pre-treatment conditions minimize the broken kernel percentage and m...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science Journal of mechanical engineering science, 2020-01, Vol.234 (2), p.384-393
Main Authors: Tran, Son Doan, Tran, Tra Thu Thi, Tong, Minh Cong, Uchiyama, Naoki
Format: Article
Language:English
Subjects:
Cost effectiveness
Drying
Kernels
Nuts
Optimization
Polynomials
Pretreatment
Response surface methodology
Steaming
Tempering
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Summary:In this research, the response surface methodology with a polynomial model was used to represent the experimental data of the combination of steaming, drying, and tempering process for extra-large cashew nuts. The desired values of pre-treatment conditions minimize the broken kernel percentage and maximize the shelling capacity to achieve cost effectiveness. In the this study, the steaming, drying, and tempering conditions were optimized for the minimization of the broken kernel percentage and the maximization of the shelling capacity of extra-large cashew nuts (bigger than 32 mm). The optimal conditions were steaming temperature at 100 ℃ for 38 min, then drying at 70 ℃ for 30 min, and finally tempering for 4 h. Under these conditions, the minimal broken kernel and maximal shelling capacity achieved were 2.45 ± 0.24% and 14.58 ± 0.35 kg/h, respectively.
ISSN:0954-4062
2041-2983
DOI:10.1177/0954406219876966