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https://open.uns.ac.rs/handle/123456789/14844
Title: | Ochratoxigenicity of Aspergillus ochraceus group and Penicillium verrucosum var. cyclopium strains on various media | Authors: | Skrinjar M. Dimić, Gordana |
Issue Date: | 1-Jan-1992 | Journal: | Acta microbiologica Hungarica | Abstract: | Production of ochratoxin A (OA) by strains of Aspergillus ochraceus group (A. ochraceus--21, A. sclerotiorum--1, A. sulphureus--1) and Penicillium verrucosum var. cyclopium strains--11, on various media was investigated. Thirteen percent of A. ochraceus strains and 18% of P. verrucosum var. cyclopium formed OA growing on sterile crushed wheat for 14 days at 25 to 27 degrees C (preliminary experiments). Toxin concentrations were 5.0 to 7.0 micrograms/kg. Five strains OA-positive on crushed wheat and four OA-negative strains were cultivated on various liquid nutritional media (YES, RM, OAT, CG and AFP). All the strains tested, including OA-negative ones, produced OA on certain liquid media. Concentrations of OA were low again (trace to 16.0 micrograms/l). The largest number of mould strains examined produced OA on YES (55.5%) and RM media (44.0%), but the highest concentration (16.0 micrograms/l) was formed on YES and CG media. | URI: | https://open.uns.ac.rs/handle/123456789/14844 | ISSN: | 02314622 |
Appears in Collections: | TF Publikacije/Publications |
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