射频加热技术在粮食储藏与加工中应用研究进展
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李洪岳, 李青鸾, 郑建军, 令博, 王绍金
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Recent Advances on Application of Radio Frequency Heating in the Research of Post-Harvest Grain Storage and Processing
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LI Hongyue, LI Qingluan, ZHENG Jianjun, LING Bo, WANG Shaojin
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表1 27.12 MHz射频频率下粮食及其加工副产物与害虫的介电特性
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Table1 Dielectric properties of post-harvest grain and their products and stored insect pests at 27.12 MHz
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粮食种类 | 含水量/(w.b. %) | 温度/°C | 介电特性数据 |
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介电常数 | 介电损耗 | 穿透深度/cm |
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小麦(锈扁谷盗成虫)[20,21] | 15.0(49.0) | 15 | 4.0 | 0.1(8.0) | —— | 45 | 4.9 | 0.2 | —— | 75 | 6.0 | 0.6 | —— | 小麦粉(印度谷螟幼虫)[18,22] | 12.6(74.0) | 25 | 5.6 | 0.5(211) | —— | 55 | 6.6 | 0.6 | —— | 85 | 23.5 | 9.74 | —— | 精米(米象成虫)[23,24] | 11.4(47.0) | 25 | 8.8 | 0.6(48) | 1063 | 玉米粉(杂拟谷盗成虫)[25,26] | 10.3(42.0) | 20 | 3.7 | 0.1(19) | 1083 | 80 | 8.4 | 0.7 | 289 | 豇豆(四纹豆象成虫)[27] | 12.7(71.0) | 20 | 3.6 | 0.3 (185) | 1008 | 40 | 4.1 | 0.5 | 766 | 60 | 5.5 | 1.0 | 431 | 绿豆[27] | 10.2 | 20 | 3.2 | 0.2 | 1075 | 40 | 3.5 | 0.3 | 1063 | 60 | 4.2 | 0.4 | 977 | 麦胚[28] | 11.3 | 25 | 3.6 | 0.4 | 831 | 55 | 5.8 | 0.6 | 623 | 85 | 9.3 | 0.9 | 471 | 米糠[29] | 10.4 | 25 | 2.8 | 0.2 | 1001 | 70 | 4.9 | 1.9 | 213 | 100 | 11.5 | 12 | 55 |
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