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A Study of Antifungal and Antiafl atoxigenic Action of Newly Synthesized Analogues of Dehydroacetic Acid

Duarković Lejla ; Prehrambeno-biotehnološki fakultet, Zagreb, Hrvatska
Mihaela Blažinkov ; Agronomski fakultet, Zagreb, Hrvatska
Sanja Sikora ; Agronomski fakultet, Zagreb, Hrvatska
Frane Delaš ; Prehrambeno-biotehnološki fakultet, Zagreb, Hrvatska
Andrea Skelin ; Agronomski fakultet, Zagreb, Hrvatska
Alma Tudić ; Hrvatske vode, Zagreb, Hrvatska
Mirna Mrkonjić-Fuka ; Agronomski fakultet, Zagreb, Hrvatska
Marijan Bošnjak ; Prehrambeno-biotehnološki fakultet, Zagreb, Hrvatska


Puni tekst: engleski pdf 838 Kb

str. 127-135

preuzimanja: 605

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Sažetak

Mycelial growth and afl atoxin B1 accumulation by toxigenous mould Aspergillus flavus were inhibited by dehydroacetic acid and its newly
synthesized analogues, 4-hydroxy-3-(p-toluoyl)-6-(p-tolil)-2H-yrane-2-one (DHT) and 5-Bromo-4-hydroxy-3-(p-toluoyl)-6-(p-tolil)-2Hpyrane-2-one (BrDHT) during the growth of investigated mould on solid substrate (soy-beans). Experiments were carried out in a stationary culture at 20 0C and 30 0C, respectively, during 21 days. Mycelial growth (biomass dry weight) was determined by measuring the chitin content and concentration of afl atoxin B1 (AFB1) was quantitated by HPLC. Concentrations of DHA and
DHT of 0.1 and 0.2 μg x g-1 of substrate were stimulated, but concentrations higher than 0.5 μg x g-1 of these compounds, mould growth and AFB1 accumulation partially inhibited. In experiments with 0.2 μg x g-1 of BrDHT mould growth and AFB1 accumulation were inhibited completely depending on the time and temperature of cultivation.

Ključne riječi

toxigenous moulds; aflatoxin B1; dehydroacetic acid; chitin; HPLC

Hrčak ID:

63989

URI

https://hrcak.srce.hr/63989

Datum izdavanja:

31.12.2010.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.502 *