Toxic substances have so far been used in the
process of disinfestation of foods but these toxic substances are
coming in for increasing stronger criticism. Substances like Methyl
Bromide, Hydrogen Phosphide etc. also face the problem of residues
seriously. Therefore, researches were undertaken to substitute and
eliminate such chemicals with natural residue-free and environment
friendly disinfestation processes.
In the new process of fumigation, the originally packed
agricultural product is exposed to pressurized CO2 atmosphere. The
infestation is done on the optimum condition and cycle time of few
hours is required for the product that has to be fumigated. No
special pre or post treatment is necessary. Products are taken to a
special enclosure and then flooded with gaseous CO2 to the required
final pressure and the subsequent takes place in another vessel.
By avoiding the use of the so far commonly employed poisonous gases
with a procedure of pressure disinfestations with Carbon Dioxide
(CO2), the procedure is environmentally compatible and thereby
eliminates the problems of residues.
Transport of Food Grains Under Modified / Controlled Atmosphere
The post harvest loss of food grains during
storage or transport continues to be a serious problem. The last
decade witnessed a great imbalance between the improved technology
to enhance the crop production and dearth of effective post harvest
technology to protect the harvest grains from insects, mites,
rodents, fungi and bacteria unit it reaches the consumer. In fact,
more than 4.0 million tonnes of food grains is lost per year and the
cost to the economy due to this loss is enormous.
Therefore construction of sophisticated structures for grain
storage and transportation, equipped with during, aeration and
fumigation facilities the most important element in a strategy to
save food grains.
Today, chemical pest control and other traditional methods of food
grain preservation are becoming unacceptable for the reduction of
post harvest losses for reasons of health hazards, ecology and