Ochratoxin A contamination of coffee batches from Kenya in relation to cultivation methods and post-harvest processing treatments

被引：13

作者：

Duris, Daniel ^{[1
]}

Mburu, Joseph K. ^{[2
]}

Durand, Noel ^{[1
]}

Clarke, Renata ^{[3
]}

Frank, John M. ^{[3
]}

Guyot, Bernard ^{[1
]}

机构：

[1] CIRAD, UMR QualiSud, F-34398 Montpellier 5, France

[2] Coffee Res Fdn, Ruiru, Kenya

[3] FAO, I-00100 Rome, Italy

来源：

FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT | 2010年 / 27卷 / 06期

关键词：

chromatography; HPLC; clean-up; affinity columns; mycotoxins; ochratoxin A; coffee; GREEN COFFEE; BEANS;

D O I：

10.1080/19440040903571770

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This study set out to assess the relative importance of sound and unsound beans in a batch of coffee with regard to ochratoxin A (OTA) contamination. Initially, unsound beans were found to account for 95% of contamination in a batch of coffee, whatever the methods used for post-harvest processing. It was also found that beans displaying traces of attacks by Colletotrichum kahawae were the greatest contributors to OTA contamination. In a second stage, the study compared the contamination of sound beans with that of beans attacked by Colletotrichum kahawae. On average, beans attacked by Colletotrichum kahawae had a statistically higher OTA content than sound beans (18.0 mu g kg-1 as opposed to 1.2 mu g kg-1). In addition, the average OTA content in unsound beans varied depending on growing conditions.

引用

页码：836 / 841

页数：6

共 14 条

[1]

Bieysse D., 2002, Plantations, recherche, developpement: recherche et cafeiculture, P144

[2] Industrial storage of green robusta coffee under tropical conditions and its impact on raw material quality and ochratoxin a content [J].