摘要
以栉孔扇贝Chlamys farreri闭壳肌为研究对象,对其热风干燥特性进行了研究。将扇贝样品经处理后于45、55、65、75℃温度下进行热风干燥,监测样品的质量变化,所采取的监测频率为干燥开始的第1小时监测4次,第2小时监测2次,第3小时后每小时监测1次,所有的干燥过程都处于降速阶段,并用薄层干燥模型对测量结果进行处理,选用Henderson-Pabis、Wang and Singh、Diamante et al.、Page、Newton 5种数学模型进行拟合,通过计算相关系数（R）、决定系数（R^2）、平均偏差（eave）、卡方检验（x^2）、均方根误差（RMSE）、相对平均偏差（P）的大小,来检验拟合程度。结果表明：在45、55、65、75℃干燥温度下,Henderson-Pabis、Diamante et al.、Page、Newton 4个模型有效;进一步分析4个模型中模型常数随温度的变化,发现其中Henderson-Pabis、Page、Newton 3个模型参数中含有干燥温度为变量的通式模型,可以有效地预测干燥温度在45~75℃时的干燥进程,3个通式模型依次为MRH=0.9673exp[-（7×10^-5T-0.0009）]t、MRP=exp（-0.00323t^0.0039T＋0.7727）和MRN=exp[-（7×10^-5T-0.0008）]t。
The hot air convective drying characteristics of scallop adductor were investigated. The pretreated samples were dried at 45,55,65 and 75 ℃,and weighed in a 15 min interval in the first hour,in a 30 min interval in second hour,and in a 60 min interval thereafter at falling speed. Five thin layer drying models including Henderson- Pabis,Wang and Singh,Diamante et al.,Page and Newton were established based on the experimental data for the test model by correlation coefficient（ R）,decision coefficient（ R^2）,average deviation（ eave）,Chi-square test（ x^2）,root- mean- square error（ RMSE） and lelative average deviation（ P） in order to screen a suitable drying curve. It was found that four models（ Henderson- Pabis,Diamante et al.,Page and Newton） were proved to be effective. Furthermore,the effects of temperature on model constants of the four models were analyzed,and the three general models（ Henderson- Pabis,Page,and Newton） including drying temperature as variable were effectively used to predict the drying process effectively in the drying temperature range from 45 ℃ to 75 ℃. The models were expressed as MRH= 0. 9673 exp[-（ 7 × 10^- 5T- 0. 0009） ]t,MRP= exp（- 0. 00323t^0. 0039 T ＋ 0. 7727）and MRN= exp[-（ 7 × 10^- 5T- 0. 0008） ]t.
出处
《大连海洋大学学报》
CAS
CSCD
北大核心
2015年第2期211-215,共5页
Journal of Dalian Ocean University
基金
国家现代农业技术产业体系项目(NYCYTX-47)
关键词
扇贝闭壳肌
薄层干燥
数学模型
scallop adductor
thin layer drying
mathematic model
