现代和传统小麦品种（Triticum aestivum L. 和 T. durum Desf.）在两年生产周期中麦粒的多酚含量。

Polyphenol content of modern and old varieties of Triticum aestivum L. and T. durum Desf. grains in two years of production.

机构信息

Dipartimento di Scienze delle Produzioni Vegetali, del Suolo e dell'Ambiente Agroforestale, Università degli Studi di Firenze, P.le delle Cascine 18, Firenze, Italy.

出版信息

J Agric Food Chem. 2010 Jun 23;58(12):7329-34. doi: 10.1021/jf1010534.

DOI:10.1021/jf1010534

PMID:20509660

Abstract

Antiradical activity and total polyphenol and flavonoid contents of modern and old varieties of durum (9 varieties) and soft (17 varieties) wheat grains, sampled over two years (summer 2007 and 2008) in the same site, were determined in order to point out differences among varieties and between old and modern varieties. Nine compounds were identified by means of HPLC/MS, and their amount was determined. No correlation was found between antiradical activity and polyphenol or flavonoid contents. The temperature conditions in the 30 days before harvesting were the principal factor which differentiated the quantitative profile of polyphenols and the antiradical activity of the seeds (p < 0.001): high temperatures cause a drop in polyphenol content.

摘要

为了指出不同品种以及传统品种和现代品种之间的差异，我们测定了在同一地点两年（2007 年和 2008 年夏季）收获的现代和传统硬粒小麦（9 个品种）和软粒小麦（17 个品种）麦粒的自由基清除活性以及总多酚和类黄酮含量。采用 HPLC/MS 法鉴定了 9 种化合物并测定了其含量。自由基清除活性与多酚或类黄酮含量之间没有相关性。收获前 30 天的温度条件是区分种子中多酚定量特征和自由基清除活性的主要因素（p<0.001）：高温会导致多酚含量下降。