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Assam Agricultural University, Jorhat

Assam Agricultural University is the first institution of its kind in the whole of North-Eastern Region of India. The main goal of this institution is to produce globally competitive human resources in farm sectorand to carry out research in both conventional and frontier areas for production optimization as well as to disseminate the generated technologies as public good for benefitting the food growers/produces and traders involved in the sector while emphasizing on sustainability, equity and overall food security at household level. Genesis of AAU - The embryo of the agricultural research in the state of Assam was formed as early as 1897 with the establishment of the Upper Shillong Experimental Farm (now in Meghalaya) just after about a decade of creation of the agricultural department in 1882. However, the seeds of agricultural research in today’s Assam were sown in the dawn of the twentieth century with the establishment of two Rice Experimental Stations, one at Karimganj in Barak valley in 1913 and the other at Titabor in Brahmaputra valley in 1923. Subsequent to these research stations, a number of research stations were established to conduct research on important crops, more specifically, jute, pulses, oilseeds etc. The Assam Agricultural University was established on April 1, 1969 under The Assam Agricultural University Act, 1968’ with the mandate of imparting farm education, conduct research in agriculture and allied sciences and to effectively disseminate technologies so generated. Before establishment of the University, there were altogether 17 research schemes/projects in the state under the Department of Agriculture. By July 1973, all the research projects and 10 experimental farms were transferred by the Government of Assam to the AAU which already inherited the College of Agriculture and its farm at Barbheta, Jorhat and College of Veterinary Sciences at Khanapara, Guwahati. Subsequently, College of Community Science at Jorhat (1969), College of Fisheries at Raha (1988), Biswanath College of Agriculture at Biswanath Chariali (1988) and Lakhimpur College of Veterinary Science at Joyhing, North Lakhimpur (1988) were established. Presently, the University has three more colleges under its jurisdiction, viz., Sarat Chandra Singha College of Agriculture, Chapar, College of Horticulture, Nalbari & College of Sericulture, Titabar. Similarly, few more regional research stations at Shillongani, Diphu, Gossaigaon, Lakhimpur; and commodity research stations at Kahikuchi, Buralikson, Tinsukia, Kharua, Burnihat and Mandira were added to generate location and crop specific agricultural production packages.

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  • ThesisItemOpen Access
    Optimization of cellulose – andhemicellulose- saccharification from sugarcane bagasse for alcohol fermentation
    (AAU, Jorhat, 2018-01) Dilip A, Rajput; Nath, T.
    Lignocellulosic alcohol production from agricultural residues has the great potential to produce transport fuel as the substitute of petroleum or diesel, as it is renewable in nature, no competition with food as well as less emission problems. Sugarcane bagasse is one of the largest agricultural wastes in many countries including India. The country produces ~40 million metric ton (MMT) of bagasse annually, most of which is burnt and contributes to air pollution. So, it can be considered as one of the lignocellulosic sources for alcohol production, but it needs proper characterization as a feed for alcohol production. In this present research, sugarcane bagasse from Assam (Buraliksion, RARS, AAU, Jorhat) has been tried to be characterized considering its sugar components (cellulose and hemicellulose) which ultimately contributes to ethanol production. Cellulose and hemicellulose composition were found 37.6% and 29.2%, respectively.The process complexity, mainly pretreatment (prior to saccharification) and enzymatic saccharification (conversion to complex carbohydrates to fermentable monomers) has been studied. Among the different pretreatment methods available, the most commonly practiced one, i.e. Acid-Alkali treated method was studied and subsequent enzymatic hydrolysis was done with known commercial enzymes. Hemicellulose was hydrolyzed by hemicellulase enzyme procured from Sigma-Aldrich and found the maximum efficiency of releasing reducing pentose monomers along with acid pretreatment (H2SO4) about 65% of total hemicellulose content. Cellulose was hydrolyzed by cellulase enzyme procured from HiMedia and found the maximum efficiency of releasing reducing hexose sugars (glucose) about 74% of total cellulose content.Not having complete conversion or having less conversion of hemicellulose/cellulose to its monomeric units may be associated with less efficiency of the enzyme or complexity of the cellulose or both.