Management of aflotoxin in groundnut
http://www.hindu.com/seta/2008/05/22/stories/20080 [2008-6-13]
Tag : Groundnut Kernels
Aflotoxin contamination in groundnut kernel has become a majorproblem. Aflotoxins are toxic substances produced by certain fungicalled Aspergillus flavus and Aspergillus parasiticus.
The fungi are present in air, soil and water and associated withliving or dead plants and animals throughout the world. Symptoms
Contamination is recognized by yellow-green to blue-green colour ofthe kernal.
During their metabolism these fungi not only produce Aflotoxins butalso deteriorate the nutritive value of the associated foodcommodities. Factors responsible
The nature of the strain of the fungus, substrate, temperature,relative humidity, moisture content of the substrate and aerationhave been found to influence the quality and quantity of aflotoxinsproduced.
Premature drying of pods, shell damage and kernel splitting duringgrowth may lead to toxicity at harvest.
These conditions may result from termite and nematode damage to thepods during weeding and other intercultural operations, drought,and long exposure of groundnut pods after harvest to atmospherecongenial to the growth of the fungus.
Aflotoxin contamination in groundnut kernel has become a majorproblem. Aflotoxins are toxic substances produced by certain fungicalled Aspergillus flavus and Aspergillus parasiticus.
The fungi are present in air, soil and water and associated withliving or dead plants and animals throughout the world. Symptoms
Contamination is recognized by yellow-green to blue-green colour ofthe kernal.
During their metabolism these fungi not only produce Aflotoxins butalso deteriorate the nutritive value of the associated foodcommodities. Factors responsible
The nature of the strain of the fungus, substrate, temperature,relative humidity, moisture content of the substrate and aerationhave been found to influence the quality and quantity of aflotoxinsproduced.
Premature drying of pods, shell damage and kernel splitting duringgrowth may lead to toxicity at harvest.
These conditions may result from termite and nematode damage to thepods during weeding and other intercultural operations, drought,and long exposure of groundnut pods after harvest to atmospherecongenial to the growth of the fungus.
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