Optimization of hot air vacuum freeze drying for Eurotus eryngii

Authors

SUN Cui, Shool of Resources and Environmental Engineering, Anhui University, Anhui, Hefei 230601, China; Industry Technology Research and Development Center for Chinese Medicinal Materials, Anhui University, Anhui, Hefei 230601, China
WANG Yu, Shool of Resources and Environmental Engineering, Anhui University, Anhui, Hefei 230601, China; Industry Technology Research and Development Center for Chinese Medicinal Materials, Anhui University, Anhui, Hefei 230601, China
SHENG Xiaorui, Shool of Resources and Environmental Engineering, Anhui University, Anhui, Hefei 230601, China; Industry Technology Research and Development Center for Chinese Medicinal Materials, Anhui University, Anhui, Hefei 230601, China
LI Kuokuo, Shool of Resources and Environmental Engineering, Anhui University, Anhui, Hefei 230601, China; Industry Technology Research and Development Center for Chinese Medicinal Materials, Anhui University, Anhui, Hefei 230601, China

Abstract

In order to increasing the drying speed, quality and energy consumption in the for Eurotus eryngii drying, the effects were studied, of from the hot-air temperature, hot-air time and vacuum freeze-drying time,on drying rate, sense judgment, rehydration ratio and Amino acids by using the Box-Behnken optimal design. Based on the experimental data, the response surface methodology was employed for the muli-variable experiments and the regression model was established. The optimal parameters were obtained as follows: hot air drying temperature 50 ℃, hot air drying time is 60 min, and the vacuum freeze-drying time is 10 h. The combined drying method can decrease the drying time and energy, were 25.5% and 6.3% lower than that of the vacuum freeze-drying ,and 156.4%、63.3% of hot air drying, respectively.

Publication Date

2-28-2017

First Page

189

Last Page

193

DOI

10.13652/j.issn.1003-5788.2017.02.040

Recommended Citation

Cui, SUN; Yu, WANG; Xiaorui, SHENG; and Kuokuo, LI (2017) "Optimization of hot air vacuum freeze drying for Eurotus eryngii," Food and Machinery: Vol. 33: Iss. 2, Article 40.
DOI: 10.13652/j.issn.1003-5788.2017.02.040
Available at: https://www.ifoodmm.cn/journal/vol33/iss2/40

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