Effect of ventilation cooling technology by cover surface and guiding flow on paddy quality during storage

Authors

WU Xiaojuan, College of Food Science and Engineering, Center South University of Forestry and Technology, Changsha, Hunan 410004, China; National Engineering Laboratory for Rice and By-product Deep Processing, Changsha, Hunan 410004, China
WU Wei, College of Food Science and Engineering, Center South University of Forestry and Technology, Changsha, Hunan 410004, China; National Engineering Laboratory for Rice and By-product Deep Processing, Changsha, Hunan 410004, China
GAO Chongming, Hunan Grain Group Co., Ltd., Changsha, Hunan 410201, China
CHEN Liang, College of Food Science and Engineering, Center South University of Forestry and Technology, Changsha, Hunan 410004, China; National Engineering Laboratory for Rice and By-product Deep Processing, Changsha, Hunan 410004, China; Hunan Grain Group Co., Ltd.

Abstract

Ventilation cooling technology by cover surface and guiding flow was used to store paddy, and effects of storage on moisture content, yellow-colored rice, fatty acid value, tasting score value of milled rice, husked rice yield, head rice yield of paddy were investigated respectively. Compared to conventional storage, the results indicated that the application of ventilation cooling technology by cover surface and guiding flow could decrease moisture content loss of paddy as 0.5%. Moreover, the content of yellow-colored rice was found remaining at around 0.1%, lower than that of the control storehouse as 0.8%, and fatty acid value was 19.2 mg KOH/100 g, lower than that of the control storehouse as 7.6 mg KOH/100 g. Tasting score value of milled rice was 79 points, which was higher than that of the control storehouse as 7 points. The results implied that ventilation cooling technology by cover surface and guiding flow could take the advantages the grain heap “cold heart”, and then the paddy was stored at low-temperature or quasi-low-temperature without insects all year round. This may help to achieve green storage without fumigation.

Publication Date

6-28-2016

First Page

132

Last Page

135

DOI

10.13652/j.issn.1003-5788.2016.06.031

Recommended Citation

Xiaojuan, WU; Wei, WU; Chongming, GAO; and Liang, CHEN (2016) "Effect of ventilation cooling technology by cover surface and guiding flow on paddy quality during storage," Food and Machinery: Vol. 32: Iss. 6, Article 31.
DOI: 10.13652/j.issn.1003-5788.2016.06.031
Available at: https://www.ifoodmm.cn/journal/vol32/iss6/31

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