EFFECT OF DIFFERENT PACKING MATERIALS AND STORAGE CONDITIONS ON THE QUALITY OF WHEAT GRAIN
Keywords:Grain moisture, storage period, packing materials, wheat grains
The present research was carried out to investigate the effect of packing materials (metal bin, earthen bin, plastic bag, cloth bag and gunny bag) and grain moisture content at packing (10% and 16%) on quality of wheat grain for ten months of storage in the laboratory of Farm Structures, Sindh Agriculture University Tandojam, Pakistan. The quality characters (insect-pest infestation, 1000-grain weight, and protein and starch contents) were determined throughout the storage period and the changes in the quality of stored grain were evaluated in terms of these variables. When the gunny, cloth and plastic bags were used as the packing material, the 1000-grain weight, protein and starch contents were decreased and insect-pest infestation was increased with the increase of storage period despite the moisture content (10 and 16%) of wheat grain at packing. When grain was packed in metal and earthen bins the reduction in quality characters with time of storage varied with the moisture content of grain. Wheat grain stored in metal and earthen bins with initial moisture content of 10% showed satisfactory qualitative characters throughout the storage period than those packed with 16% moisture. Higher the moisture content of grain at packing higher was the rapidity of quality loss and shorter the time of storage of wheat grain in metal and earthen bins. Therefore, it is evident that packing grain with 10% moisture in metal and earthen bins keeps the grain in good quality. Wheat grain, stored in metal and earthen bins, was good in terms of 1000-grain weight, protein, starch and low insect-pest infestation in comparison with those in gunny, cloth and plastic bags.
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