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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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Subject: Veterinary Public Health × Author: Kakati, Smita × Start date: 2015 × Thesis Type: M.V.Sc. ×
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    ThesisItemOpen Access
    QUALITY EVALUATION AND DETECTION OF ADULTERANTS IN RAW AND PASTEURIZED MILK MARKETED IN AND AROUND GUWAHATI CITY
    (College of Veterinary Science, Assam Agricultural University Khanapara, Guwahati-781022, 2016-07) Kakati, Smita; TALUKDAR, ARCHANA
    Milk in its natural form is a unique food for the nourishment of human being since time immemorial as it provides immunogenic protection and supplies nutrients in an easily digestible form than any other single food. With growing consumer concern for their daily consumables, there is increased awareness regarding safety and quality issues of milk and dairy products. The presence of adulterants, preservatives and pathogens of zoonotic importance is of primary concern in the effort of achieving a safe milk supply to the consumers. The present investigation was undertaken to study the quality, to determine the presence of different adulterants and preservatives as well as to assess the microbial load of raw and pasteurized milk marketed in and around Guwahati city. A total of 200 pooled milk samples were collected comprising of 8 samples each from 25 different locations in and around Guwahati city. Five different pasteurized packaged milk samples were collected from different dairies viz. Purabi Dairy, Amul Taaza, Central Dairy, Mother Dairy and Nandini. Physical evaluation of raw milk samples revealed mean titratable acidity of 0.14 - 0.20% lactic acid, pH of 5.60 - 6.91, specific gravity of 1.024 - 1.030, fat content of 1.57 - 3.55% and solids-not-fat (SNF) content of 6.634 - 8.350%; the respective values of which in packaged milk samples were 0.14 - 0.19% lactic acid, 6.10 - 6.70, 1.024 - 1.029, 3.00 - 3.05% and 8.515 - 8.580. Both raw and packaged milk samples showed negative result on clot-on-boiling test. Presence of added water, neutralizers, ammonia and salt were recorded in raw milk while the packaged milk samples were found to be properly pasteurized and free from any type of adulterant and preservative. Methylene blue reduction test of raw milk indicated more than 50% of the samples to be of poor and very poor quality in contrast to good quality in all the packaged milk from dairies. The viable bacterial count and coliform count of raw milk were 10.59 - 14.62 and 6.34 - 7.50 log cfu/ml, respectively, while no coliform could be isolated from the packaged milk. Based on physical evaluation, chemical analysis and microbial assessment, the raw milk marketed in and around Guwahati city was found to be of poor quality whereas all the packaged milk samples were found to be properly pasteurized and free from any coliform organism and harmful adulterants and preservatives.