Hot-air drying characteristics and kinetics model of Pleurotus eryngii

被引：0

作者：

Chen, Jian-Kai ^{[1
,2
]}

Lin, He-Tong ^{[1
,3
]}

Li, Hui ^{[1
,4
]}

Tan, Hui-Jun ^{[1
,3
]}

Lin, Yi-Fen ^{[1
,3
]}

机构：

[1] College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China

[2] Department of Food and Bioengineering, Zhangzhou Institute of Technology, Zhangzhou 363000, China

[3] Institute of Postharvest Technology of Agricultural Products, Fujian Agriculture and Forestry University, Fuzhou 350002, China

[4] Department of Biological Science and Biotechnology, Minnan Normal University, Zhangzhou 363000, China

来源：

Modern Food Science and Technology | 2013年 / 29卷 / 11期

关键词：

Mean square error - Regression analysis - Air - Velocity - Solar dryers - Atmospheric temperature;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The hot-air drying characteristics of Pleurotus eryngii were studied in terms of different hot-air temperatures, air velocities, material size and accumulation layers of material, meanwhile a hot-air drying mathematical model was established. The test showed that these factors significantly affected the hot-air drying characteristics. Increasing the air temperature and velocity, or lowering size material, single accumulation layer could fasten the drying speed and shorten drying time of Pleurotus eryngii. The speed of a hot-air drying would be faster at air temperature of 80°C with the material size of 1 cm × 1 cm, or single accumulation layer. When air velocity was 1.5 m/s, the drying speed increased as the drying time was shorted. The experimental drying data of Pleurotus eryngii was used to fit five available drying models by applying Matlab 7.0 and using Gauss-Newton algorithm, and the coefficients of models were determined by non-linear regression analysis. It was showed that Two-term model had higher correction coefficient (R2), lower square sum of error value (SSE) and root mean square error value (RMSE), which could exactly describe and predict the moisture dynamics of Pleurotus eryngii during hot-air drying process.

引用

页码：2692 / 2699