现代食品科技2018，Vol.34Issue(4)：206-214,9.DOI:10.13982/j.mfst.1673-9078.2018.04.031
大曲的热风干燥特性及其动力学模型
Study on Hot-air Drying Characteristics and Dynamic Model of Daqu
摘要
Abstract
The hot-air drying dynamics model of Daqu during the period of drainage and cooling was established in this study to explore the correlation between hot-air drying and the lethality of Daqu pest by investigating the hot-air drying characteristics, the effective diffusion coefficient (Deff) and the activation energy (Ea) of Daqu. The results demonstrated that the drying stage of Daqu was mainly the deceleration-drying stage. The effect of drying temperature on Deff was obviously greater than the drying air speed, indicating the temperature had a great influence on the dehydration of Daqu, and the Ea was 59. 744 k J/mol. In addition, eight typical drying model equations were selected to describe the drying curve of Daqu during the desiccation-cooling period. The Midilli model had superior fitting effect and high fitting accuracy, and the Daqu pests in external and internal environment would completely die after hot-air drying process. Therefore, the paper investigated the drying technology of Daqu with external heating process, and the Daqu pests were effectively exterminated. The obtained results provided a theoretical basis for research and production control of hot-air drying process of Daqu.关键词
大曲/曲虫/热风干燥/动力学/模型Key words
Daqu/Daqu pest/hot-air drying/dynamics/model引用本文复制引用
夏玙,罗惠波,周平,黄丹,邓波,沈才萍,邬捷峰,张曼..大曲的热风干燥特性及其动力学模型[J].现代食品科技,2018,34(4):206-214,9.基金项目
固态酿造关键技术研究四川省院士(专家)工作站项目(GY2014-03) （专家）
四川省科技成果转化项目(2016CC0032) （2016CC0032）
