DESIGN, CONSTRUCTION AND PERFORMANCE EVALUATION OF AN AUTOMATED BATCH PASTEURIZER

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Published: 2017-11-30

Page: 145-154


A. AHUMUZA

Department of Agricultural and Bio-Systems Engineering, Makerere University, P.O. 7062, Kampala, Uganda.

E. NABUTUTA

Department of Agricultural and Bio-Systems Engineering, Makerere University, P.O. 7062, Kampala, Uganda

J. KIGOZI *

Department of Agricultural and Bio-Systems Engineering, Makerere University, P.O. 7062, Kampala, Uganda

A. ZZIWA

Department of Agricultural and Bio-Systems Engineering, Makerere University, P.O. 7062, Kampala, Uganda.

E. SEMPIIRA

Department of Agricultural and Bio-Systems Engineering, Makerere University, P.O. 7062, Kampala, Uganda.

*Author to whom correspondence should be addressed.


Abstract

The main problems faced by small-scale liquid foods processors in developing countries, Uganda in particular include high business start-up costs and lack of appropriately sized equipment. Therefore, the aim of this study was to design, construct and evaluate a small scale automated pasteurizer; an important equipment in liquid foods industry. The performance of the pasteurizer was tested using freshly prepared fruit juice at a pasteurization temperature of 90°C and holding time of 10 min. The batch pasteurizer had a come-up time of 37 and 78 min from a cold jacket and from a hot jacket respectively, and an output of 92-194 L/hr. The kinetics study of pasteurization showed a decimal reduction time (of 10 min and with the z value of 10°C the batch lethality was 0.062 min. The pasteurizer portrayed significantly high performance and can therefore be recommended for use by the small-scale liquid food processors.

Keywords: Batch pasteurizer, small scale food processor, lethality, holding time, come-up time


How to Cite

AHUMUZA, A., NABUTUTA, E., KIGOZI, J., ZZIWA, A., & SEMPIIRA, E. (2017). DESIGN, CONSTRUCTION AND PERFORMANCE EVALUATION OF AN AUTOMATED BATCH PASTEURIZER. Journal of Advances in Food Science & Technology, 4(4), 145–154. Retrieved from https://ikprress.org/index.php/JAFSAT/article/view/3717

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