Keywords
aflatoxins
iprodione
control
How to Cite
Abstract
It was verified the production of aflatoxins in coro samples, cultivar BR 201, grown in 1994,at CentroNacional de Milho e Sorgo, in Sete Lagoas,Minas Gerais. Duplicate samples, showing different levels of moisture, were treated with Iprodione aqueous and oily solution (20 ppm), and were srored in metal containers, with and without ventilation, at temperatures ranging from 18 to 20°C and from 35 to 40°C, respectively.The found results showed a reduction of the aflatoxins levels in samples treated with Iprodione and stored at a ventilated atmosphere. When the samples were stored without ventilation (temperature hetween 35 and 40°C), the decrease of the aflatoxins levels was not significam, mainly when the moisture valnes were high, showing that temperature and moisture were important factors in aflatoxins biosynthesis.
References
2. DIENER, U.L & DAVIS, N.D. Limiting temperature and reIative humidity for growth and production of aflatoxin and free fatty acids by Aspergillus flavus in sterile peanuts. 1. Amer.
ou Chem,. Soe, 44:259-263, 1967.
3. FRANK, R.; BRAUN, H.E.; RIPLEY, B.D. Residues of insecticides, and fungicides in fruit produced in Ontario, Canada, 1986-1988. Food Add. Contam. 7: 637-648, 1990.
4. MONTANI, M.L. & VAAMOND, G. Water activity influence on aflatoxin accumulation in com. Intern. J. Food Microb., 6:349-353, 1988.
5. NICÁCIO, MAURÍCIOAGUIMAR DE SOUZA. Determinação de aflatoxinas e identificação da microbiota fúngica em milho (Zea mays L.)
pós-colheita. Belo Horizonte: Universidade Federal de Minas Gerais, 1995. 72p. Dissertação (Mestrado em Microbiologia). Curso de Pós-Graduação em Microbiologia, Instituto de Ciências Biológicas, 1995.
6. OSORIO, J. M.; ADASKAVEG, I.E.; OGAWA, J.M. Comparative efficacy and systemic activity of Iprodione and the experimental anilide E-0858 for control of brown rot on peach fruit. Plant-Disease, 77:1140-1143, 1993.
7. PRADO, G.; MARTINS VIEIRA, M.B.C.; NICÁCIO, M.A.S.; GLÓRIA, M.B.A. Efeito 84 da umidade relativa na contaminação microbiana e produção de aflatoxinas em amendoim em grão. Ciência e Tecnologia de Alimentos. 11:264-273, 1991.
8. PRZYBYLSKI, W. Formation of aflatoxin derivatives on thin layer chromatographic pIates. J. Assoc. Off. Anal. Chem., 58: 163164,1975.
9. SABINO, M.; PRADO, G.; COLEN, G. Ocorrência de aflatoxinas, ocratoxina A e zearalenona em milho de Minas Gerais. Parte r. Rev. Inst. Adolfo Lutr, 46:65-71, 1986.
10. SABINO, M.; PRADO, G.; INOMATA, F.I.; PEDROSO, M.O. & GARCIA, R.V. Natural occurrence of aflatoxins and zearalenone in maize in Brasil. Part n. Food Add. Contam, 6:327-331,1989.
11. SCHINDLER,A.F.; PALMER, I.G.; EISENBERG, W.v. Aflatoxin production by Aspergillus flavus as related to various temperatures. Appl. Microb., 15: 1006-1009, 1967.
12. SHOTWELL, OL & HESSELTINE, c.w.Fiveyears study of mycotoxins in Virginia wheat and dent com J. Assoe. Off. Anal. Chem., 6:1466-1469, 1983.
13. SOARES, L.M.V & RODRIGUES-AMAYA, D.B. Survey of aflatoxins, ochratoxinA, zearalenone and sterigmatocystin in brazilian foods by using multi-toxin thin-layer chromatographic methods. 1. Assoe. Of!. Anal. Chem., 73: 22:26, 1989.
14. STOLOFF, L.; HENRY, S.; FRANCIS, 0.1. Survey for aflatoxins and zearalenone in 1973 crop com stored on farms and in country
elevatores. J. Assoe. Off. Anal. Chem., 59: 119: 121,1976.
15. WHO - Environmental Health Criteria 11: Mycotoxins. Geneve, World Health Organization, 1979, 127p.
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