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首页> 外文会议>Annual Meeting of the American Association of Cereal Chemists International >New instruments for monitoring and managing sprout damage
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New instruments for monitoring and managing sprout damage

机译：用于监测和管理新芽损伤的新仪器

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Sprout damage in grains results in increased alpha-amylase activity, which can cause detrimental effects on the quality of downstream products. It is therefore important to devise a rapid and simple method for determining the alpha-amylase activity ofthe grains that is suitable for use at grain elevators. The Hagberg Falling Number (FN) test and Newport Scientific Rapid Visco Analyser (RVA) Stirring Number (SN) test are two common methods used to test alpha-amylase activity. Prior to testing, samplepreparation includes steps to grind, clean, weigh and dispense, which are time consuming and require semi璼killed labour, so are poorly suited to the grain collection environment. Newport Scientific has developed two new instruments to address these concerns. The first is a self-cleaning mill (SCM) designed to reduce carry-over and cross contamination of samples, and the second is an automatic dispenser unit (ADU) that dispenses the corrected amount of water into a sample. These instruments are designed for use with an RVA StarchMaster that performs the SN test. Prototypes of SCM and ADU have been developed and trialed. This paper reports on the feasibility, accuracy and repeatability of the three instruments as a package for monitoring and managing sprout damage in wheat. Grinding sprouted and sound wheat alternately, minimal carry-over was observed on both the SCM prototypes by weighing residues (<0.33 g) and by looking for reduction in SN values of sound wheat samples (<1.7% reduction in SN). Subsequent SN results from the ground samples showed that cross-contamination was very low. Good accuracy and repeatability was obtained from the ADU (<0.05 mL). The SCM, ADU and RVA StarchMaster show promise as a rapid and simple solution for managing sprout damage in grains.
机译：谷物的萌芽损伤导致α-淀粉酶活性增加，这可能导致对下游产品的质量产生不利影响。因此，重要的是设计一种快速和简单的方法，用于确定适合于晶粒电梯的颗粒的α-淀粉酶活性。 Hagberg下降号（FN）测试和Newport Scientific Visco分析仪（RVA）搅拌号（SN）测试是用于测试α-淀粉酶活性的两种常见方法。在测试之前，样品制备包括磨削，清洁，称重和分配的步骤，这些步骤是耗时的，并且需要半璼杀死劳动力，因此适合粮食收集环境。纽波特科学已开发出两种新仪器来解决这些问题。首先是旨在减少样品的携带和交叉污染的自清洁轧机（SCM），第二种是自动分配器单元（ADU），其将校正量的水分配到样品中。这些仪器设计用于执行SN测试的RVA Starchmaster。已开发和试验SCM和ADU的原型。本文报告了三种仪器的可行性，准确性和可重复性作为用于监测和管理小麦的新芽损坏的包装。通过称重残留物（<0.33g）并通过寻找声音小麦样品的Sn值（Sn的<1.7％）的SN值减少，在SCM原型中磨削萌芽和声音麦片，在SCM原型中观察到最小的随身携带。随后的SN从地面样品产生的结果表明，交叉污染非常低。从ADU（0.05mL）获得良好的精度和可重复性。 SCM，ADU和RVA Starchmaster将承诺作为管理谷物中的甘蓝损坏的快速和简单的解决方案。

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