Mycotoxin E book 3 A5 size 04
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MYCOTOXINS<br />
What are the factors<br />
affecting <strong>Mycotoxin</strong><br />
production?<br />
<strong>Mycotoxin</strong><br />
producing fungus<br />
<strong>Mycotoxin</strong> produced<br />
Climate condition<br />
Optimum<br />
Temp Reqt.<br />
Optimum<br />
Water Activity<br />
Aspergillus flavus, A. parasiticus,<br />
A. pseudotamarii<br />
Aflatoxin B1, B2, G1, G2 (Afla)<br />
Warm, Humid, Tropical,<br />
Delayed harvest, >50mm rainfall<br />
0<br />
33 C<br />
0.99<br />
A. ochraceus, Penicillium verrucosum<br />
Ochratoxin A (OTA)<br />
High moisture on harvest, Damp storage<br />
0<br />
25-30 C<br />
0.98<br />
A. flavus A. versicolor,<br />
Penicillium cyclopium,P. camemberti<br />
Cyclopiazonic Acid(CPA)<br />
High moisture subtropical conditions<br />
0<br />
20 C<br />
0.98<br />
Fusarium verticillioides,<br />
F. proliferatum<br />
Fumonisin B1 (FUMB1)<br />
Temperate conditions<br />
0<br />
15-30 C<br />
0.90-0.99<br />
F. graminearum F. avenaceum<br />
Trichothecenes: T-2 toxin,<br />
High Moisture and Subtropical areas<br />
0<br />
26-30 C<br />
0.995<br />
F. graminearum<br />
Trichothecenes: Deoxynivalenol (DON)<br />
Sensitive to slightest<br />
change in temperatures<br />
0<br />
26-30 C<br />
0.995<br />
F. graminearum, F. sporotrichioides<br />
Zearalenone (ZON)<br />
A humid tropical climate is ideal<br />
0<br />
25 C<br />
0.96<br />
Penicillium citrinum, P. verrucosum<br />
Citrinin<br />
Generally formed post harvest<br />
in stored grains<br />
20-30 0<br />
C<br />
0.75-0.85<br />
J.M. Milani PAUL E. NELSON et al Wageha Awad et al A.GENTLES et al Jewers K.<br />
18 19
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