Effect of storage temperature and moisture contents on the total aflatoxin growth in the indigenous feed ingredients
2005
Firdous, S. (Government Coll. Univ., Lahore (Pakistan). Dept. of Chemistry) | Firdous, S. | Khan, I.U.
The effect of various parameters like temperature, moisture level and storage time on the growth of aflatoxin B1 and G1 was studied on animal feed samples. It was found that the feed samples stored for a period of 20 days at 12% moisture have minor growth of aflatoxin. However, a rapid increase in aflatoxin concentrations was observed between 12-18% moisture level and 25-35 degree C. The level for B1 rose to maximum of 1.159, 1.645 and 4.135ppm for canola, soybean and corn, respectively; and 0.725, 1.274 and 2.097, respectively, for G1 at 18% moisture level and 35 degree C after 50 days storage. Beyond these conditions there was slight decrease in the concentration of B1 and G1. For canola, meal aflatoxin G1 concentration remained almost zero up till 30 degree C stored for a period of 10 days at 12-14% moisture level. No aflatoxin growth was observed in rapeseed meal during the whole study.
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