International Centre for Brewing Science, Bioenergy and Brewing Science Building, University of Nottingham, School of Biosciences, Division of Food Science, Sutton Bonington Campus, Loughborough LE12 5RD, UK; SABMiller Plc, SABMiller House, Church Street West, Woking, Surrey GU21 6HS, UK.
International Centre for Brewing Science, Bioenergy and Brewing Science Building, University of Nottingham, School of Biosciences, Division of Food Science, Sutton Bonington Campus, Loughborough LE12 5RD, UK; SABMiller Plc, SABMiller House, Church Street West, Woking, Surrey GU21 6HS, UK.
Food Chem. 2017 Sep 1;230:215-224. doi: 10.1016/j.foodchem.2017.03.031. Epub 2017 Mar 8.
The impact of hop variety and hop aroma on perceived beer bitterness intensity and character was investigated using analytical and sensory methods. Beers made from malt extract were hopped with 3 distinctive hop varieties (Hersbrucker, East Kent Goldings, Zeus) to achieve equi-bitter levels. A trained sensory panel determined the bitterness character profile of each singly-hopped beer using a novel lexicon. Results showed different bitterness character profiles for each beer, with hop aroma also found to change the hop variety-derived bitterness character profiles of the beer. Rank-rating evaluations further showed the significant effect of hop aroma on selected key bitterness character attributes, by increasing perceived harsh and lingering bitterness, astringency, and bitterness intensity via cross-modal flavour interactions. This study advances understanding of the complexity of beer bitterness perception by demonstrating that hop variety selection and hop aroma both impact significantly on the perceived intensity and character of this key sensory attribute.
采用分析和感官方法研究了啤酒花品种和啤酒花香气对感知啤酒苦味强度和特征的影响。使用麦芽提取物酿造的啤酒分别用 3 种不同的啤酒花品种（哈拉道、东肯特金酒、宙斯）进行酿造，以达到等效苦味水平。一个经过培训的感官小组使用新的词汇表确定了每种单一啤酒花酿造的啤酒的苦味特征。结果表明，每种啤酒的苦味特征不同，而且啤酒花香气也改变了啤酒花品种衍生的啤酒苦味特征。等级评定进一步表明，通过交叉感官风味相互作用，啤酒花香气对选定的关键苦味特征属性具有显著影响，增加了感知的粗糙和持久苦味、涩味和苦味强度。这项研究通过证明啤酒花品种选择和啤酒花香气都会显著影响这种关键感官属性的感知强度和特征，进一步加深了对啤酒苦味感知复杂性的理解。
