麦胚多层多室流化床在线稳定化试验
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徐斌,副教授,主要从事粮油精深加工技术与装备研究,Email: xubin@ujs.edu.cn

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江苏省科技攻关资助项目(BE2007420)和江苏省研究生科研创新计划资助项目(CX09B -213Z)


Technology and Equipment of Stabilized Storage of Wheat Germ by Online Multistage Fluidization Drying
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    摘要:

    针对小麦胚芽快速酸败变质的特性,采用多层多室流化床装备对麦胚进行在线稳定化处理。 根据麦胚的性质和实际产量要求,将改良设计的多层多室流化床装备与面粉生产线连接,并 选取不同温度、风量等参数进行在线试验,研究流化床对麦胚的稳定化效果。结果表明,出 风温度45℃为稳定化处理麦胚的优化条件。处理后的麦胚VE损失628%, 氮溶解指数下降111%,脂肪酸组成和相对含量未产生明显变化。产品经30d加速贮藏, 过氧化值72mmol/kg,酸价1847mg/g。试验表明,该技术与装备已达到了麦胚稳定 化处理的基本要求。

    Abstract:

    In order to improve the stabilized storage of wheat germ (WG) and better prepare it for further processing, a fluidization drying technology is developed to sol ve the problem of wheat germ’〖KG-*4〗s acidification and deterioration. Accord ing to t he WG character and the actual production, a multistage fluidized bed is designe d and connected to wheat flour product line. With this equipment, temperature an d airflow as major parameters are selected to test their respective influence on the wheat germ stabilization. The result shows that the optimized condition of fluidization drying is 45℃ of outlet temperature. VE loss of processed WG is 6 28%, and the decrease of NSI is 111%. No distinct change is observed in i ts fatty acid composition and relative content. After 30 days’ accelerate store , peroxide value is 72mmol/kg, and acid value is 1847mg/g. The experimen t result shows that the technology and equipment developed have satisfied the de mands of stabilized storage of wheat germ. 

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徐 斌,董 英,吴艳博,王初阳,徐山元.麦胚多层多室流化床在线稳定化试验[J].农业机械学报,2010,41(1).

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