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Researcher Pundlik, Divekar Santosh
Advisor Sharma, P. K.
Source KrishiKosh-Indian National Agricultural Research System
Content type Text
Educational Degree Doctor of Philosophy (Ph.D.)
File Format PDF
Language English
Subject Domain (in DDC) Technology ♦ Agriculture & related technologies
Subject Keyword Studies ♦ Flexible Hermetic ♦ Storage System ♦ Paddy ♦ Agricultural Engineering ♦ Studies On Flexible Hermetic Storage System For Paddy
Abstract India’s food grain production was 257.13 MT in the year 2012-13. India is a second largest producer of paddy in the World after China. Rice production reported was 105.24 MT of the year 2012-13 (ICAR, 2013). India’s share in World rice production was 23.07 % of year 2012-13. The rice productivity in India increased from 1984 kg/ha in 2004-05 to 2372 kg/ha in year 2011-12. Worldwide 2 MT food lost every year. India loses Rs. 58000 cr. food grains every year due to lack of proper storage (Godowns) facilities. Hermetic storage is one of the solutions to this problem. Hermetical storage is based on the principle of generation of an oxygen-depleted, carbon dioxide-enriched atmosphere caused by the respiration of the living organisms in the ecological system of a sealed storage. An experiment was conducted at Agricultural Engineering Division of Indian Agricultural Research Institute, New Delhi on flexible hermetic storage system for paddy. Five packaging materials viz. jute bag, HDPE woven lined, HDPE woven un-lined bags, polypropylene bags and super grain bags were selected for the study. Two varieties of paddy, fine (Pusa sugandh5) and coarse grains (Swarna) were selected for the study. The observations noted were, moisture content, relative humidity, temperature, oxygen, carbon dioxide and insect count. Highest moisture content (17.41% w.b.) was observed in grain stored in HDPE woven unlined bag and lowest (13.41 % w.b.) in grain from super grain bag. The super grain bag resist moisture migration due to its lowest water vapor transmission rate compared to other packages. Lowest oxygen content (3.98%) was measured in super grain bag. And the highest carbon dioxide was measured in the same bag of value 16.67%. Whereas insect dropped up to 3 in numbers in super bags. This insect number dropped to zero at oxygen below 5 percent and carbon dioxide above 10 percent. The rice quality indicator, head rice yield fluctuated among the treatments and reported lowest 52 % coarse paddy stored in jute bag. The steady Head rice yield (60- 64%) was found in paddy stored in super grain bag. The highest weight loss percentage (9%) was found in paddy obtained from jute bag and lowest (0.85%) in paddy from super grain bag. Jute bag, woven lined bag and woven unlined bags were found unable to stop moisture migration to and from the grain stored in them. Polypropylene bag arrested moisture migration better than the jute, woven lined and unlined bags. Super grain bag proved the best to stop moisture migration from grains to atmosphere and vice versa. Super grain bag is the best among the treatments for creating storage environment of low oxygen and high carbon dioxide content. The major controlling factor of insect growth in jute, woven lined and unlined bas was moisture content. A major controlling factor for insect growth in the polypropylene and super grain bag is oxygen and carbon dioxide content found inside package. Insect infestation due to moisture content was the main cause of different head rice recovery and the percentage weight loss in jute, woven lined and unlined bags. The super grain bag is economically viable to store paddy for full one year or more. The polypropylene bag was also economically viable to use for less than a year of paddy storage.
Educational Use Research
Education Level UG and PG
Learning Resource Type Thesis
Size (in Bytes) 1.48 MB