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The Peroxide Challenge Test: A Novel Method for Holistic Near-Real Time Measurement of Beer Flavour Stability

机译:过氧化物挑战测试:一种用于啤酒风味稳定性的全实时近实时测量的新方法

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摘要

A holistic approach is paramount to reliably measure beer staling. As a consequence, the peroxide challenge test (PCT) was developed as an alternative to electron spin resonance (ESR). The principle of the PCT is to mimic oxidation by titrating beer with hydrogen peroxide. The more hydrogen peroxide a beer can quench, the more resistant it is against oxidation and flavour deterioration. The PCT allows cost effective, near real time, high throughput assessment of beer flavour stability. The PCT is convenient and inexpensive to perform and the results correlate with ESR measurements and the perceived aged character of beer.
机译:整体方法对于可靠地测量啤酒陈旧性至关重要。因此,开发了过氧化物激发试验(PCT)作为电子自旋共振(ESR)的替代方法。 PCT的原理是通过用过氧化氢滴定啤酒来模拟氧化。啤酒可以淬灭的过氧化氢越多,则对氧化和风味恶化的抵抗力就越高。 PCT允许对啤酒风味稳定性进行具有成本效益的,近实时的高通量评估。 PCT实施起来既方便又便宜,其结果与ESR测量值和啤酒的老化特征有关。

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