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Analysis of Growth Inhibition and Metabolism of Hydroxycinnamic Acids by Brewing and Spoilage Strains of Brettanomyces Yeast

机译:酿酒酵母酿造和腐败菌株对羟基肉桂酸的生长抑制和代谢分析。

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Brettanomyces yeasts are well-known as spoilage organisms in both the wine and beer industries, but also contribute important desirable characters to certain beer styles. These properties are mediated in large part by Brettanomyces’ metabolism of hydroxycinnamic acids (HCAs) present in beverage raw materials. Here we compare growth inhibition by, and metabolism of, HCAs among commercial brewing strains and spoilage strains of B. bruxellensis and B. anomalus. These properties vary widely among the different strains tested and between the HCAs analyzed. Brewing strains showed more efficient metabolism of ferulic acid over p-coumaric acid, a trait not shared among the spoilage strains.
机译:在葡萄酒和啤酒工业中,酒鬼酵母都是众所周知的腐败菌,但是它们也为某些啤酒风格提供了重要的重要特征。这些特性在很大程度上是由酒香酵母中饮料原料中存在的羟基肉桂酸(HCA)代谢所介导的。在这里,我们比较了商业酿造菌株和B. bruxellensis和B. anomalus的腐败菌株中HCA的生长抑制和代谢。这些性质在所测试的不同菌株之间以及所分析的HCA之间差异很大。酿造菌株比对香豆酸显示出更有效的阿魏酸代谢,这是腐败菌株之间不共有的特征。

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