Design and performance test of a batch system rotary vacuum dryer with a 50-liter capacity to dry basidiomycota class mushrooms

1st International Conference on Food and Agriculture 2018

Djamila, S.^1 ; Iswahyono^1 ; Bahariawan, A.^1

Agriculture Engineering Department, Politeknik Negeri Jember, Mastrip Po Box 164, Jember

68101, Indonesia^1

关键词: Design and tests;    Drying chambers;    Functional test;    Low temperatures;    Performance tests;    Rotary vacuum dryer;    Vacuum condition;    Vacuum pressure;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/207/1/012003/pdf
DOI  :  10.1088/1755-1315/207/1/012003

来源: IOP

【 摘 要 】

The community's most common drying process is drying under the sun for at least two to three days, depending on the weather. Research aimed to resolve the weather dependency of this drying process by drying mushroom in the oven at 40-degrees Celsius and drying process using tray dryer under a vacuum condition and obtained optimum cap and stalk drying results at 60-degrees Celsius under 20 kPa vacuum pressure. However, the shelf drying process resulted in differences in the moisture content. To resolve this problem, a dryer that can operate at a low temperature by vacuuming. The objectives of this research were to design and test the performance of a rotary vacuum dryer with a batch system for drying mushrooms from the Basidiomycota class. The results of functional test and performance tests using 1000 g of mushrooms were obtained: vacuum pressure 16 cmHg, temperature of drying chamber (60 ± 1) oC, drying time 16 hours, rpm drying cylinder 6-8 rpm, and final mushroom moisture content: 13% wb.