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Comparison of Hermetic Storage of Wheat with Traditional Storage Methods in India

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  Applied Engineering in Agriculture. 33(1): 121-130 . (doi: 10.13031/aea.11792) @2017
Authors:   Pavel Somavat, Haibo Huang, Sunil Kumar, Mukesh K. Garg, Mary-Grace C. Danao, Vijay Singh, Marvin R. Paulsen, Kent D. Rausch
Keywords:   Hermetic bags, Postharvest losses, Sensors, Storage, Wheat.

Abstract. India is among the countries experiencing high postharvest losses. Four hermetic bags, two metallic bins, and two gunny bag (also known as jute or burlap bag) piles each containing 1 tonne of wheat were instrumented with temperature, relative humidity, and carbon dioxide sensors. Representative samples from each structure were collected each month and tests for moisture, germination, insect-damaged grain, and milling yield were performed. After nine months, wheat stored in hermetic bags had higher germination (87%) and lower insect-damaged grain percentages (0% to 0.33% with a mean value of 0.2%). Hermetic bags with deliberately introduced successfully eliminated the pests. Gunny bag piles had infestations; metallic bins also were infested. Wheat moisture content in all structures varied depending upon ambient conditions; moisture variation was largest in gunny bag piles. Milling yields were lowest for gunny bag piles. Hermetic bags can be an effective and environmentally friendly solution for reducing storage losses of wheat in India.

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