摘要
为了解隧道式烘房挂面干燥温度、相对湿度以及挂面水分含量的动态变化,确定工艺参数及其关键控制点。采用179A-TH智能温度湿度记录仪在线监测隧道式烘房挂面干燥过程的温度和相对湿度;测定挂面的水分含量,绘制干燥脱水曲线。结果显示,隧道式烘房挂面干燥温度呈现近似抛物线的形式,相对湿度随着挂面干燥时间不断降低;烘房不同空间位置(上、中、下及左、中、右)的温度和相对湿度存在显著性差异(P<0.05);三次多项式回归方程对挂面干燥脱水曲线的拟合效果最好(R2=0.999 4)。结果认为,隧道式烘房挂面干燥工艺参数符合挂面干燥工艺技术规程;三次多项式回归方程-数学模型对实现挂面干燥工艺标准化和自动化有重要的指导意义。
The purpose of this research was to understand the dynamic change of drying temperature, relative humidity and moisture content of the noodle in tunnel - type drying chamber in order to determine the parameters and critical control point during drying process. The 179A - TH intelligent temperature and relative humidity recorder has been adopted to monitor the on - line temperature and relative humidity of the tunnel - type drying chamber. Mean-while, the moisture content of the noodle was measured, and the dehydrate curves has been drawn synchronously. Theresults showed that the variation of drying temperature was described approximately in a form of parabolic. The relative humidity decreased gradualy through the dryin~ process. There were significant differences （P 〈 0.05 ）on the tempera- ture and relative humidity among different spatial position （included upper, middle,lower and left, middle, right）in the tunnel - type drying chamber. The drying dehydrate curve could be well fitted by cubic polynomial regression equation （ R2 = 0.999 4）. It is concluded that the drying process parameters conform to the technical practice of the noodle dr-ying process. The cubic polynomial regression equation - mathematical model have an important guiding effect for standardization and automation of the drying process of Chinese dried noodle.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2014年第3期84-89,共6页
Journal of the Chinese Cereals and Oils Association
基金
现代农业(小麦)产业技术体系专项(CARS-03)
企业技术服务(2012-2013)
关键词
挂面
干燥工艺
干燥曲线
温度
相对湿度
在线监测
Chinese dried noodle, drying process, drying curves, temperature, relative humidity, online monito- ring
作者简介
王杰，男，1987年出生，硕士，农产品加工工程
魏益民，男，1957年出生，教授，食品质量与安全及加工技术
