THE PROBLEM OF OCHRATOXIN A IS REAL IN ARMENIA
Mycotoxins are especially dangerous biological contaminants of food. OTA (ochtatoxin A) is the main problem in countries with developed winemaking and viticulture. The aim of our work was to identify contamination level of dried vine fruit by ochratoxigenic and aflatoxigenic filamentous fungi an...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
2020-09-01
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| Series: | Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry |
| Subjects: | |
| Online Access: | http://pubs.ub.ro/?pg=revues&rev=cscc6&num=202003&vol=3&aid=5169 |
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| Summary: | Mycotoxins are especially dangerous biological
contaminants of food. OTA (ochtatoxin A) is the main problem in countries
with developed winemaking and viticulture.
The aim of our work was to identify contamination level of dried vine fruit
by ochratoxigenic and aflatoxigenic filamentous fungi and their mycotoxins
and to reveal dangers for consumer. Dried vine fruit sold in Armenia
including local production and imported were analyzed. Quantities of OTA
and AFB1 (aflatoxin B1) in fungi extracts and in dried grape samples were
determined by TLC (Thin-Layer Chromatography) method.
508 strains of potential producers of OTA and AFB1 from genus
Aspergillus were isolated from dried grape and identified. 30 strains of A.
carbonarius, 15 strains of A. niger, 3 strains of A. ochraceus and 12 strains
of A. flavus were analyzed on mycotoxin content. OTA were revealed in 20
strains of A. carbonarius and 6 strains of A. niger.
In order to discover the sources of contamination of Armenian dried vine
fruit by toxigenic species, mycological analysis of fresh grape berries was
carried out. 218 potentially toxigenic strains were isolated and 43 strains (20
A. carbonarius, 16 A. niger and 7 A. flavus) were analyzed. None of them
produced mycotoxins. OTA and AFB1 were revealed in dried grape samples
of Armenian production. |
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| ISSN: | 1582-540X 1582-540X |