Abstract
[Objective] To solve the problems of high energy consumption, large equipment volume, and the need to use pressure vessels in traditional nitrogen production, this study develops a new pest prevention technology and applies it to the modified atmosphere storage of soybeans to effectively realize pest prevention. [Methods] Soybeans (pile size:35.7 m×25.6 m×6 m) are stored for 3 months using a modified atmosphere storage technology under atmospheric pressure with a closed gas cycle, referred to as vacuum rotary nitrogen preparation with moisture control. The concentration of nitrogen is maintained at 98% for 28d, and then at 95% for 2 months. The oxygen reduction efficiency and the maintenance of low oxygen are monitored during the modified atmosphere storage. The insecticidal effect is evaluated, and the changes of soybean quality (including soybean damage rate, moisture content, peroxide value, crude fatty acid value, iodine value, protein solubility ratio, and total colony count) are determined before and after nitrogen filling. Finally, the energy consumption of nitrogen-controlled atmosphere storage (N2-CAS) is analyzed. [Results] The oxygen concentration of each layer of the soybean pile the rancidity of soybeans. [Conclusion] The overall energy consumption per ton of the soybean for N2-CAS is 0.88 kW·h/t, including 0.55 kW·h/t in the oxygen reduction stage and 0.33 kW·h/t in the low oxygen maintenance stage.
Publication Date
1-13-2026
First Page
117
Last Page
122
DOI
10.13652/j.spjx.1003.5788.2025.80267
Recommended Citation
Lele, NING; Yong, LIU; Chenling, QU; Jihai, LI; Zhenli, LAI; Zhenpan, CHEN; and Chao, HUANG
(2026)
"Application of vacuum rotary nitrogen preparation with moisture control in soybean storage,"
Food and Machinery: Vol. 41:
Iss.
12, Article 15.
DOI: 10.13652/j.spjx.1003.5788.2025.80267
Available at:
https://www.ifoodmm.cn/journal/vol41/iss12/15
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