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Chemical control of spoilage caused by microbes in stored grain.

Majumder, S. K. and Sharangapani, M. V. and Pingale, S. V. (1955) Chemical control of spoilage caused by microbes in stored grain. Bulletin of Central Food Technological Research Institute, 5. pp. 47-50.

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Micro-organisms are almost always present on grains and even so before these enter storage godowns. They, however, multiply under conditions when the grains have a moisture content2 of more than 14.0 per cent. Under Indian conditions most of the grains at the time of storage, have moisture values ranging between 10 per cent and 12 per cent. When stored in underground pits, in large size bins or in the case of grains already infested with insects a rise in moisture level is recorded and this facilitates the development of microbes. As a result, the grains lose the viability, appearance, taste and therefore the industrial usefulness. According to conservative estimates microbial activities result in a loss of I -2 per cent of the world's grain production. In India where the surplus grains are stored underground, a loss of about 3-7 per cent is not uncommon. Thorough drying of the grain prior to storage, blowing of hot air through the stored grain and turning of the grain at intervals, are the suggested remedies for avoiding the microbial spoilage. These measures, however, are temporary in effect and in certain cases not even practicable. Hall and Hyde4 repoft that storage in absolutely air-right structures which is both difficult and very expensive reduces spoilage but therein the taste and flavour of the grain are still affected. Many chemicals had been tried for controlling microbial development in stored grains but with little success. In the experiments carried out at this Institute ethylene dibromide (EdBr) and methyl bromide (MeBr) exhibited fungicidal properties besides being insecticidal also. The use of these insecticides for checking microbial spoilage in the grain, was tested and is reported in this paper.

Item Type: Article
Uncontrolled Keywords: microbial spoilage, grain, chemical control
Subjects: 600 Technology > 03 Agriculture > 05 Insect/Pest Control
600 Technology > 08 Food technology > 16 Nutritive value > 08 Grains
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 05 Mar 2013 11:05
Last Modified: 05 Mar 2013 11:05
URI: http://ir.cftri.com/id/eprint/3424

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