作者
Marco Grossi, Roberto Lazzarini, Massimo Lanzoni, Bruno Riccò
发表日期
2011/10/1
期刊
Journal of food engineering
卷号
106
期号
4
页码范围
347-354
出版商
Elsevier
简介
The freezing process is very important in ice cream production affecting quality, taste and yield of the finished product. Batch freezer machines use different control techniques to tightly control the freezing process, based on monitoring of the temperature and/or the viscosity (i.e. consistency) of the product. Temperature control, however, features low sensitivity and need calibration for different product compositions, while product viscosity is essentially inferred from dasher motor load, sensitive to power line fluctuations, volume of product and dasher motor characteristics. In this context, this paper presents a novel technique based on measurements of the product electrical characteristics, tightly linked to temperature and viscosity. The experimental results presented in this work clearly indicate that the proposed technique provides a suitable, nondestructive tool to monitor ice cream quality product that overcomes the …
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