Chemical transformations of characteristic hop secondary metabolites in relation to beer properties and the brewing process: A review

被引:124
作者
Steenackers, Bart [1 ]
De Cooman, Luc [2 ]
De Vos, Dirk [1 ]
机构
[1] Katholieke Univ Leuven, Ctr Surface Sci & Catalysis, B-3001 Leuven, Belgium
[2] KaHo St Lieven, Lab Enzyme & Brewing Technol, B-9000 Ghent, Belgium
关键词
Hop alpha acids; Hop beta acids; Hop sesquiterpenes; Chemical transformation; Brewing process; Beer properties; Humulone; Lupulone; Xanthohumol; Alpha-humulene; Beta-caryophyllene; HUMULUS-LUPULUS L; ISO-ALPHA-ACIDS; OXIDATION-PRODUCTS; BITTER ACIDS; DIRECT EPISULFIDATION; BETA-CARYOPHYLLENE; PHYTOESTROGEN; 8-PRENYLNARINGENIN; CATALYZED ISOMERIZATION; ABSOLUTE-CONFIGURATION; PREPARATIVE SEPARATION;
D O I
10.1016/j.foodchem.2014.09.139
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The annual production of hops (Humulus lupulus L.) exceeds 100,000 mt and is almost exclusively consumed by the brewing industry. The value of hops is attributed to their characteristic secondary metabolites; these metabolites are precursors which are transformed during the brewing process into important bittering, aromatising and preservative components with rather low efficiency. By selectively transforming these components off-line, both their utilisation efficiency and functionality can be significantly improved. Therefore, the chemical transformations of these secondary metabolites will be considered with special attention to recent advances in the field. The considered components are the hop alpha-acids, hop beta-acids and xanthohumol, which are components unique to hops, and alpha-humulene and beta-caryophyllene, sesquiterpenes which are highly characteristic of hops. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:742 / 756
页数:15
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