白藜芦醇和白藜芦醇苷在美国和欧洲啤酒花球果中的存在情况。

Occurrence of resveratrol and piceid in American and European hop cones.

作者信息

Jerkovic Vesna, Collin Sonia

机构信息

Unité de Brasserie et des Industries Alimentaires, Faculté d'Ingénierie biologique, agronomique et environnementale, Université catholique de Louvain, Croix du Sud, 2 bte 7, B-1348 Louvain-la-Neuve, Belgium.

出版信息

J Agric Food Chem. 2007 Oct 17;55(21):8754-8. doi: 10.1021/jf071792k. Epub 2007 Sep 21.

DOI:10.1021/jf071792k

PMID:17883256

Abstract

The recent discovery in hops of trans-resveratrol and its glucoside, trans-piceid, both famous in wine for their potential role in the "French paradox", opens new doors to understanding hop health benefits. In the present work, trans-resveratrol and trans-piceid were quantified by HPLC-APCI-MS/MS in 40 American and European hop cone samples from harvests of 2004, 2005, and 2006. Their content varies greatly, in the range 0.5-12 mg/kg. All German varieties revealed low amounts of stilbenes. The highest concentrations were found in Cascade (2004) and Willamette (2004 and 2006), two American low-alpha-acid varieties. Yet, probably because trans-resveratrol is a phytoalexin, a strong influence of harvest year was also observed.

摘要

近期在啤酒花中发现了反式白藜芦醇及其糖苷——反式白藜芦醇苷，这两种物质在葡萄酒中因与“法国悖论”潜在相关而闻名，为理解啤酒花对健康的益处打开了新的大门。在本研究中，采用高效液相色谱 - 大气压化学电离串联质谱法（HPLC - APCI - MS/MS）对2004年、2005年和2006年收获的40个美国和欧洲啤酒花球果样品中的反式白藜芦醇和反式白藜芦醇苷进行了定量分析。它们的含量差异很大，在0.5 - 12毫克/千克范围内。所有德国品种的芪类化合物含量都很低。在卡斯卡特（2004年）和威廉麦特（2004年和2006年）这两个美国低α - 酸品种中发现了最高浓度。然而，可能由于反式白藜芦醇是一种植保素，还观察到收获年份有很大影响。