Potential ochratoxin A producers from wine grapes in Argentina and Brazil

被引：147

作者：

Rosa, CAD

Palacios, V

Combina, M

Fraga, ME

Rekson, AD

Magnoli, CE

Dalcero, AM

机构：

[1] Univ Nacl Rio Cuarto, Dept Microbiol & Inmunol, Fac Ciencias Exactas Fis Quim & Nat, RA-5800 Rio Cuarto, Cordoba, Argentina

[2] Univ Fed Rio de Janeiro, Dept Microbiol & Imunol, Inst Vet, BR-23890000 Rio De Janeiro, Brazil

[3] Inst Nacl Tecnol Agropecuaria, Mendoza, Argentina

来源：

FOOD ADDITIVES AND CONTAMINANTS | 2002年 / 19卷 / 04期

关键词：

wine grapes; ochratoxin; mycobiota; Aspergillus section Nigri;

D O I：

10.1080/02652030110092748

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The aim was to identify the normal mycoflora in wine grapes from Argentina and Brazil. We collected 50 grapes samples from Malbec and Chardonnay varieties in each country during the 1997-98 harvest. Yeasts were a major component of the fungal population, and the most frequent genera of filamentous fungi isolated were: Aspergillus, Penicillium and Botrytis. Other genera identified (in decreasing order) were: Phythophthora, Moniliella, Alternaria and Cladosporium. From grapes, the mean frequency of filamentous fungi ranged from 1: 3 10 4 to 5: 4 10 6 CFU g(-1). We isolated 48 Aspergillus niger strains from Argentinian grape, of which eight could produce ochratoxin A. Sixteen of 53 A. niger strains from Brazilian grapes produced ochratoxin A. The results indicate that similar mycobiota were isolated from Argentinian and Brazilian wine grapes and there could be ochratoxin A production in this substrate.

引用

页码：408 / 414

页数：7

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