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University of Agricultural Sciences, Bengaluru

University of Agricultural Sciences Bangalore, a premier institution of agricultural education and research in the country, began as a small agricultural research farm in 1899 on 30 acres of land donated by Her Excellency Maharani Kempa Nanjammanni Vani Vilasa Sannidhiyavaru, the Regent of Mysore and appointed Dr. Lehmann, German Scientist to initiate research on soil crop response with a Laboratory in the Directorate of Agriculture. Later under the initiative of the Dewan of Mysore Sir M. Vishweshwaraiah, the Mysore Agriculture Residential School was established in 1913 at Hebbal which offered Licentiate in Agriculture and later offered a diploma programme in agriculture during 1920. The School was upgraded to Agriculture Collegein 1946 which offered four year degree programs in Agriculture. The Government of Mysore headed by Sri. S. Nijalingappa, the then Chief Minister, established the University of Agricultural Sciences on the pattern of Land Grant College system of USA and the University of Agricultural Sciences Act No. 22 was passed in Legislative Assembly in 1963. Dr. Zakir Hussain, the Vice President of India inaugurated the University on 21st August 1964.

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20198
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End date: 2019 × Start date: 2019 × Type: Thesis × Thesis Type: M.Tech. ×
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    ThesisItemOpen Access
    DESIGN, DEVELOPMENT AND PERFORMANCE EVALUATION OF SOLID STATE COOLING MODULE FOR RAW MILK COOLING
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-09-03) MALLIKARJUNA; Ramachandra, C.T.
    Milk is the perfect growing medium for micro-organisms. At 4 °C microorganisms cannot duplicate and thus spoilage can be avoided. The global increasing demand for refrigeration in field of cooling and storage led to usage of more electricity and consequently release of CO2, CFC and HCF carbons over the world, contributing factor of global warming. Thermoelectric cooling is the new alternative technique used for producing cooling and heating effect. The developed solid state cooling module consist of three Peltier modules, hot and cold side heat sinks, exhaust fans and one SMPS. The solid state cooling module was developed with interior cooling volume of 4.5 and 5 L for water and milk, respectively. The dimensions of developed solid state cooling module were 460 H×330 D×20 T mm. The heat sinks were used to improve the rate of heat transfer between both sides of the module and SMPS were used to convert the alternate current of 110/ 220 V to direct current of 12 V and 10 amps. The performance evaluation of solid state cooling module was carried out with water and raw milk, the achieved temperature was 30 to 9 °C in 3 h and 37 to 17 °C in 1 min and 50 s, respectively. The COP, cooling load and power consumption of developed cooling module was 0.036, 146.188 kJ and 1.125 kWh, respectively. The developed cooling module was easy to operate, economical, green technology and eco-friendly. The B-C ratio of developed module was 1:1.18.
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    ThesisItemOpen Access
    DEVELOPMENT OF PROCESS TECHNOLOGY FOR PRODUCTION OF PUPAE PELLETS AS ANIMAL FEED
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-23) KATHYAYINI, H. S; Dronachari, Manvi
    Silkworm pupae is an interesting by-product obtained after reeling off the silk threads. It contains 51% protein, 29% fat, 3% fiber and 5% mineral matter etc. Physical and biochemical properties of raw pupae were evaluated. Selected a suitable drying technology for drying of pupae. Sun, tray, solar tunnel, vacuum and freeze drying methods taken 23 hours at 30.85ºC, 6 hours at 65ºC, 8 hours at 64ºC, 7.5 hours at 55ºC, 12 hours at -46ºC drying times and drying temperatures respectively. Physical and biochemical properties of different dried pupae were evaluated. Freeze drying is the best method for drying of silkworm pupae compared to other four drying methods because freeze dried pupae retained all physical and biochemical parameters similar to raw pupae. Freeze dried pupae were grinded into powder but in order to balance the nutrient requirements of animal feed and to reduce the methionine content in silkworm pupae powder. Mixed the pupae powder with correct proportion of maize flour, bajra flours, vitamin and mineral mixture along with gram flour binding agent. Finally, the blended mixture was added to the pelletizer for the development of pupae pellets. Physical properties of developed pupae pellets were evaluated. Biochemical parameters of blended pupae pellets carried under 9 different treatments. T1 is the best treatment among 9 treatments because it retained higher percentage of protein 21.43% and fat 11.41% with minimum percentage of moisture content 4.30%. Developed process technology for pupae pellet can feed as protein supplement to poultry, livestock and fish at lower costs.
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    ThesisItemOpen Access
    STUDIES ON MICRO IRRIGATION SYSTEMS IN GREENHOUSES OF SOUTHERN KARNATAKA
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-21) SHRIKANT; ASHOKA, H. G.
    The study was undertaken in Southern parts of Karnataka to evaluate and to assess the performance of the different companies drip irrigation systems in Greenhouses. Introduction about farmers and other details were collected from different dealers of respective companies. There are different greenhouses selected for the study and Among them three greenhouses from each companies. The results on the aspect of design evaluation showed that, 9 greenhouses having good operating system and the 6 greenhouses are not capable to operate the system, which results in poor performance of the system. The hydraulic parameters such as coefficient of manufacturer variation, emission uniformity, uniformity coefficient, application efficiency and distribution efficiency are found to be excellent at both 0.75 and 1.00 kg/cm2 operating pressure for all the irrigation system of different companies. But the emitter flow variation observed is acceptable only for company A, company C and company E at 1.00 kg/cm2 operating pressure only. However it was not acceptable at 0.75 kg/cm2 for all the irrigation companies. The value of emitter exponent and discharge coefficient varied between 0.37 to 0.79 and 2.72 to 3.34 respectively. which indicates the flow is almost turbulent. Hence all company drippers were found to be in the range of non-pressure compensating. The company A having better hydraulic efficiency followed by company B, company C, company D, and company E. The cost of installation per acre for all the systems was found to be in the range of Rs. 45000/- to 52000/-.
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    ThesisItemOpen Access
    PROCESS OPTIMIZATION FOR PRODUCTION OF LITTLE MILLET FLAKES
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-08) ANUSHA, S. D.; VIRESH KUMARGOUD
    Millets are the most important cereal grain and sustainable food to the growing population. It is also superior than rice and wheat in terms of health benefits. An investigation was undertaken to explore the potential of little millet for development of little millet flakes. The process parameters of soaking for 16 hours; cooking at 85°C for 10 minutes and drying at 40°C for 1 hour were found to be optimum compared to the other treatments for producing good quality flakes. The flakes were subjected to evaluation of physico-chemical, sensory, microbial, textural and storage quality of flakes. The little millet flakes exhibited dull, creamy white, small, thin and crispy, irregular shaped, dry and light in weight. Bulk density and true density were 1.09 g/mL and 1.26 g/mL respectively. The millet flakes had water holding capacity of 51.95% and water absorption capacity of 194.67%. The millet flakes had moisture, fat, protein, total ash, crude fibre and carbohydrates of 10.46, 2.70, 8.0, 2.04, 8.74 and 68.06 per cent respectively. The developed products from flakes revealed that the flakes were best suitable for preparing roasted masala products flowed by muesli product and then followed by avalakki. The microbial load was within permissible limit during storage period. The little millet flakes were acceptable in terms of sensory quality and had shelf life of three months at ambient temperature.
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    ThesisItemOpen Access
    DEVELOPMENT OF PROCESS PROTOCOL FOR THE PREPARATION OF DESI COWS PANCHAGAVYA POWDER
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2019-08-20) LIKSHITHA, S.; Mohith Kumar, G. V
    The present study was conducted to optimize the process parameters for the production of Malnad Gidda’s (Bos Indicus) panchagavya powder using spray drying and vacuum tray drying at the College of Agricultural Engineering, UAS, GKVK, Bangalore, Karnataka, India. The experiment was conducted in FCRD with six spray drying inletoutlet temperature combinations in three replications and the data was analysed using Design expert 7.0.0 software. Out of six temperature combinations, the experimental results showed that the better panchagavya powder was obtained at the spray drying inlet and outlet temperature combination of 150 °C and 85 °C, respectively and for vacuum tray drying, 600 mmHg pressure at 35 °C for 8 hours showed better physical, chemical, microbial as well as textural properties. The storage studies conducted for three months revealed that panchagavya powder stored in the alluminum laminated polyethene had better quality product due to its improved barrier properties than that stored in the polyethylene pouches. Due to the low temperature drying, the yield and the quality of the panchagavya powder obtained were higher in vacuum tray drying compared to that of spray dried panchagavya powder.
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    ThesisItemOpen Access
    TESTING AND PERFORMANCE EVALUATION OF SUB-BARIC STORAGE BIN FOR FOOD GRAIN STORAGE
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 2019-08-03) Pakkiranna, Sivamma; RAMACHANDRA, C. T.
    The sub-baric storage bin was tested for leak proofness and safety using hydraulic pressure and vacuum drop test and results revealed that the bin has no explosion and implosion. The D-value experiment for pulse beetle was carried out under 640 mm Hg and recorded as 10 min. To evaluate the performance of SBSB at 600+50 mm Hg, rice grains resided in SBSB and gunny bag for two months. Sampling was done for fresh sample and at 15 days interval. Red gram grains were stored in the SBSB and plastic containers for one month. Sampling was done for fresh sample and at 10 days interval. Samples analyzed for nutritional composition, colour, water activity, grain damage (for rice), insect identification (for rice) and seed germination rate (for red gram) at predetermined interval. Results showed that SBSB provided better retention of nutritional composition of grains. There were no variations in colour of grains under both storages. The SBSB resulted in lower water activity. Tribolium castaneum was identified in control and no insect in SBSB. No grain damage in SBSB and 294 damaged grains per 500 g in control. The dispersed solids in gruel for rice stored in SBSB were less i.e., 2.8% compared to control i.e., 3.6%. The SBSB resulted in good sensory quality of cooked rice. The highest germination rate of red gram in SBSB i.e., 93, 91, 91% compared to control i.e., 86, 85 and 76% for 10, 20 and 30 day respectively. The Benfit-Cost ratio of SBSB was 1.5:1.
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    ThesisItemOpen Access
    WATER RESOURCE CONSERVATION PLANNING FOR MICRO-WATERSHED OF DEVANAYAKANAHALLI IN TUMKUR DISTRICT USING GEOSPATIAL TECHNOLOGY
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 2019-08-07) ANAND GOUDA; RAJASHEKARAPPA, K. S.
    Geospatial technique were used for land and water management action plan for Devanayakanahalli micro-watershed lies between 760 39' 43'' to 760 41' 17'' E longitudes and 130 4' 54'' to 130 6' 29'' N latitudes in Tumkur district, Karnataka. Arc GIS software was used in evaluation of morphological characteristics of the micro-watershed. The present study reveals that drainage pattern was dendritic with trunk order 3. The area, maximum length and width of the micro-watershed are 453 ha, 3.18 km and 1.23 km respectively. The mean value of bifurcation ratio was 2.20, it indicates micro-watershed had suffered less structural disturbance. The value of drainage density 2.30 km km-2 which shows that the region having permeable subsoil material. The value of form factor illustrates micro-watershed was elongated in shape. The study was used to prepare the thematic maps of land use/land cover, soil, slope and drainage using satellite imagery data and Survey of India (SoI) toposheet of micro-watershed and to integrate all the maps under GIS environment to prepare the water resource management plans for micro-watershed. The study will be helpful in identification of sites for construction of different soil and water conservation structures. Thus, the results shows that 38.14 per cent of the total area is ideal for constructing check dam, 20.97 per cent farm pond and 13.40 per cent for percolation pond which helps in sustainable development of the natural resources of the micro-watershed with the proper implementation of the proposed action plans.
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    ThesisItemOpen Access
    DEVELOPMENT OF PROCESS TECHNOLOGY FOR PRODUCTION OF INSTANT DONKEY MILK POWDER
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BANGALORE, 2019-08-17) DIVYA, V.; Ramachandra, C.T.
    Physico-chemical (proximate composition, vitamins, amino acids, fatty acids, lysozyme, minerals and microbial load) properties of Donkey milk of dwarf grey breed was carried out. Spray drying was carried out for production of donkey milk powder at inlet and out air temperature of 160/85 °C. To achieve instant properties in spray dried donkey milk powder agglomeration process was carried out at different combinations of lecithin concentration and temperature ranging from 0 to 0.8 % and 40 to 60 °C, respectively. Optimization of spray fluid bed dried donkey milk powder for good handling and reconstitutional properties was performed by Central Composite Randomized Design in Design Expert Software. The optimum values of concentration and inlet air temperature were 0.68% and 57 °C, respectively. Freeze drying was carried out at -51 °C and 0.043 milli bar pressure for 35.5 h after freezing of milk at -20 °C for 24 h. The proximate composition of freeze dried donkey milk powder showed almost similar proximate composition compared to raw donkey milk. Freeze dried donkey milk powder achieved improved handling and reconstitutional properties compared to spray fluid bed dried donkey milk powder.