Vol. 43, No. 2, 1999
THE EFFECT OF FOOD ADDITIVES ON OCHRATOXIN A
Laciaková, A., Cabadaj, R., Pástorová, B., Čonková, E., Kováč, G., Laciak, V.
University of Veterinary Medicine
Komenského 73
041 81 Košice
The Slovak Republic
Summary
During the technological processing of raw materials for feed, various preserving additives are used, and in our work we have aimed at the degradation of ochratoxin A by acid feed additives.
The effects of 6 additives substances (lactic, formic, acetic, sorbic, benzoic, propionic acids) were tested at the concentrations of 0.1, 0.25, 0.5, and 1 % on ochratoxin solutions (concentrations of 1, 2, 3 µg / ml). Results are presented in Figures 1, 2, 3.
Formic acid, which gradually degraded ochratoxin at a concentration of 0.1 % after 24 h exposure, was the most effective of all the tested additives.
Benzoic acid was the second in decreasing order. It reduced the ochratoxin level after 2 h action at a concentration of 0.5 %.
Sorbic and lactic acids at a 1 % concentration reduced the ochratoxin level to 0.5 µg after 24 h exposure.
Propionic and acetic acids at concentrations of 1 % had the least effect: they reduced the ochratoxin level to 0.75 µg after 24 h exposure.
Key words: ochratoxin A; feed additives; formic, lactic, acetic, sorbic, benzoic, propionic acids
References
Folia Veterinaria / 1999