Control of fungal infection and aflatoxin contamination in high moisture maize by carbon dioxide fumigation
Material type:
TextPublication details: Mexico, DF (Mexico) CIMMYT : 2004Description: p. 451-454ISBN: - 970-648-116-8
| Item type | Current library | Collection | Call number | Copy number | Status | Date due | Barcode | Item holds | |
|---|---|---|---|---|---|---|---|---|---|
| Conference proceedings | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Publications Collection | Look under series title (Browse shelf(Opens below)) | 1 | Available | 1L630601 |
Browsing CIMMYT Knowledge Center: John Woolston Library shelves, Collection: CIMMYT Publications Collection Close shelf browser (Hides shelf browser)
| Look under series title Biological control of asian corn borer, Astrinia furnacalis using Trichogramma evanescens and Beauveria bassiana | Look under series title Performance of maize (Zea mays L.) genotypes during post-germination drought | Look under series title Mating type, cultural characteristic, and virulence of Bipolaris maydis in Thailand | Look under series title Control of fungal infection and aflatoxin contamination in high moisture maize by carbon dioxide fumigation | Look under series title Impact of maize research and extension in Bangladesh | Look under series title Maize research in Bangladesh rural advancement committee (BRAC) | Look under series title Farmer participaroty breeding in Ri-Bhoi Districts of Meghalaya, India |
Series of experiments were conducted during 1991-1997 at Nakhon Sawan Field Crops Research Center and at a merchant warehouse in Nakhon Sawan province. It was found that carbon dioxide fumigation of the wet grain bulk under plastic sheet could effectively control fungal infection and aflatoxin contamination. Two methods of fumigation were developed. In the first method, the sealed bulk was only fumigated by carbon dioxide at a rate of 0.5 kg/ton. In the second method, the sealed bulk was firstly vacuumed by a vacuum machine then fumigated by carbon dioxide at a rate of 0.3 kg/ton. These methods could preserve the quality of the wet maize with moisture content below 30 % within 48 hrs after shelling. The treated grain bulk could be protected from fungal infection and aflatoxin contamination for at least 10 days. After fumigation, the maize quality and appearance were not changed. The grain color remained bright and free flowing. The temperature in the grain bulk was not increased. However, an anaerobic fermentation in the bulk produced a sour-sweet smell that would disappear after sun drying.
English
0502|AGRIS 0501|AL-Maize Program
Juan Carlos Mendieta
CIMMYT Publications Collection