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Govind Ballabh Pant University of Agriculture and Technology, Pantnagar

After independence, development of the rural sector was considered the primary concern of the Government of India. In 1949, with the appointment of the Radhakrishnan University Education Commission, imparting of agricultural education through the setting up of rural universities became the focal point. Later, in 1954 an Indo-American team led by Dr. K.R. Damle, the Vice-President of ICAR, was constituted that arrived at the idea of establishing a Rural University on the land-grant pattern of USA. As a consequence a contract between the Government of India, the Technical Cooperation Mission and some land-grant universities of USA, was signed to promote agricultural education in the country. The US universities included the universities of Tennessee, the Ohio State University, the Kansas State University, The University of Illinois, the Pennsylvania State University and the University of Missouri. The task of assisting Uttar Pradesh in establishing an agricultural university was assigned to the University of Illinois which signed a contract in 1959 to establish an agricultural University in the State. Dean, H.W. Hannah, of the University of Illinois prepared a blueprint for a Rural University to be set up at the Tarai State Farm in the district Nainital, UP. In the initial stage the University of Illinois also offered the services of its scientists and teachers. Thus, in 1960, the first agricultural university of India, UP Agricultural University, came into being by an Act of legislation, UP Act XI-V of 1958. The Act was later amended under UP Universities Re-enactment and Amendment Act 1972 and the University was rechristened as Govind Ballabh Pant University of Agriculture and Technology keeping in view the contributions of Pt. Govind Ballabh Pant, the then Chief Minister of UP. The University was dedicated to the Nation by the first Prime Minister of India Pt Jawaharlal Nehru on 17 November 1960. The G.B. Pant University is a symbol of successful partnership between India and the United States. The establishment of this university brought about a revolution in agricultural education, research and extension. It paved the way for setting up of 31 other agricultural universities in the country.

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  • ThesisItemOpen Access
    Process standardization for infrared assisted pulsed microwave baked biscuits
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Gond, Priya; Lohani, U.C.
    Baking is a complex process which involves simultaneous heat and mass transfer without direct exposure of food material to a flame. Many physical, chemical, and biochemical changes occur in food during baking. Combining microwave energy with infrared heating is a promising technology to reduce the problems in microwave baked products. It is highly profitable, as microwaves have greater penetration depth with volumetric heating and minimum temperature difference between the surface and interior of the food material. The present research work was undertaken for process standardization of infrared (IR) assisted pulsed microwave (MW) baking of biscuits with respect to its physiochemical properties. The experiments were conducted to optimize the baking parameters for developing the biscuits. The independent parameters selected were IR baking temperature (190, 200 and 210°C), IR baking time (160, 180 and 200s), MW baking power (960, 1080 and 1200W) and MW baking time (10, 15 and 20s). Color difference (ΔE), spread ratio (%), moisture content (%wb), free fatty acid (%), textural profile analysis (hardness, cohesiveness, and springiness) and sensory characteristics were analyzed. Box-Behken design was used for the aforementioned parameters. The data from all 29 experiments were analyzed using Design Expert 11.0.1 and the response functions were developed using multiple regression. The optimum level of variables for maximum desirability of developed biscuits was identified. An IR baking temperature of 210°C, IR baking time of 184.2s, MW baking power of 960W and MW baking time of 20s. resulted in IR-MW biscuits with a color difference of 15.1, spread ratio of 5.96%, moisture content of 3.86%wb and hardness of 159.2 N. Significant (p<0.05) effect of process parameters were found on all responses for developed wheat flour based biscuits. On validation of the model for responses of developed biscuits, it was found that the developed model was accurate as the prediction error was only in the range of 0.007 to 0.192 %. Biscuits developed at optimum conditions of IR assisted MW baking were compared with conventionally baked one with respect to color difference (ΔE), spread ratio (%), moisture content (%wb), hardness (N) and scanning electron microscopy. IR assisted MW baked biscuits were found superior in quality.
  • ThesisItemOpen Access
    Process development for microencapsulation of natural pigments from bio-residue and evaluation of its storage stability
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Purnima Kumari; Singh, Anupama
    At present, due to regulatory decisions and consumers’ concern, the use of natural colorants as an alternative to synthetic colors in food applications has become a worldwide trend. In recent years, interest in natural pigments as well as their scientific study has increased largely because of their role as natural antioxidants and nutraceuticals promoting health benefits. Pigment stability, however, depends on a combination of environmental and chemical factors, such as light exposure, oxygen, temperature, pH and enzymatic activity. It is difficult to incorporate these compounds into food due to low stability during processing and storage. Therefore, the food industry is continuously looking for encapsulation technology as an innovative and inexpensive approach which could aim at improving the pigment stability and increasing the shelf life of the product as well. The present research work has been planned keeping in view the role of encapsulation for maintaining the stability of extracted anthocyanin based pigments and hence conducted to encapsulate anthocyanin based pigment (extracted from black soybean hull) using plants based coating wall materials using microwave drying technique. For microencapsulation of anthocyanin based pigment, designed experiments (Multilevel Categoric Full Factorial Design) having three independent parameters with three levels of each i.e., SPI:GA (1:3, 1:1, 3:1), core material (20, 22.5, 25 %) and particle size of microcapsules (300, 360, 420 μm) and their effect on five responses including encapsulation efficiency (%), moisture content (%), dissolution time (s), total phenolic content (mg GAE/g DW) and antioxidant activity (%) were carried out. Experimental data analysed by Design Expert (10.0.8) software reveals that the optimized conditions obtained for microencapsulation of anthocyanin based pigment were observed to be SPI: GA (w/w) ratio 23:50 as coating wall material, quantity of core material (25% of coating wall material) and microcapsules particle size 300 μm having encapsulation efficiency 82.3 %, moisture content 5.04 %, dissolution time 21 s, TPC 0.392 mg GAE/g DW and AA 32.4 %. Storage studies also revealed that microencapsulated anthocyanin based pigment was found to be more stable in terms of TAC, TPC and AA in comparison to non-encapsulated pigment. Second order polynomial model fitted well showing high correlation coefficient indicating the suitability of design in optimizing the process parameters for microencapsulation of anthocyanin based pigment.
  • ThesisItemOpen Access
    Process optimization for development of natural gum hydrogel based biodegradable food packaging material
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2021-02) Aman, Junaid; Shahi, N.C.
    The present study entitled, “Process Standardization for the Development of Natural Gum Hydrogel Based Biodegradable Food Packaging Material” was conducted in the department of Post Harvest Process and Food Engineering, College of Technology, G.B.P.U.A.T., Pantnagar, Uttarakhand. Guar is one of the most important and occurring plant in India which releases gum. During cultivation of the guar plant, huge amount of guar gum is generated as waste. Guar gum can be used for development of value-added product due to the presence of sufficient quantities of sugars like galactose and mannose and variety of valuable compounds such as phenols, fibres, unsaturated fatty acids and amides. Developed hydrogel film from guar gum can be used as biodegradable food packaging material which might result in high commercial value use of the by-product. The research was therefore undertaken for development of natural gum based hydrogel film, optimization and study of the characteristics. The experiments were conducted to study the effect of developed hydrogel film on physico-mechanical, biological, chemical and thermal properties. The independent variables selected were initiator (0.05, 0.10 and 0.15 mg/100ml GS), cross linker (0.02, 0.05 and 0.08 mg/100ml GS) and plasticizer concentration (2,4 and 6 ml/100ml GS). The biodegradation (%wt. loss), colour difference (ΔE), hardness(N), swelling index(%) and transparency(%) of the film were analysed. The data from all 17 experiments were analysed using Design Expert 11.0.1 and the response functions were developed using multiple regression analysis. The optimum level of variables for maximum desirability of developed hydrogel film were 0.146 mg/100ml GS initiator, 0.026 mg/100ml GS cross linker and 2.886 ml/100ml GS plasticizer concentration. The optimum values of responses were 21.495% (wt loss) of biodegradation, 5.460 (ΔE) of colour difference, 122.983 N of hardness, 213.44 % of swelling index and 59.36% of transparency. Significant (p<0.05) effect of process parameters were found in all responses in developed guar gum based hydrogel film. On validation of the model for responses of hydrogel film, it was found that the developed model was accurate as the prediction error was only in the range of -3.19 to 2.99%. At optimum condition of developed hydrogel film was characterized using moisture content, chemical interactions (FTIR and SEM) and thermal tests (TGA and DMA) and found to be significant.
  • ThesisItemOpen Access
    Performance characterization of the spray nozzles based on CFD simulation
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-11) Shaik Nasreen; Arun Kumar
    The Plant protection is an essential operation in the basic practices of crop production. The relative balance between environmental contamination and biological efficacy determines the performance of Plant protection equipment. This balance is mainly affected due to design and operational parameters of the sprayers apart from the architecture of tree and environmental conditions. The design and operational parameters of the sprayer have been analyzed in this study to address this issue. Operating pressure, height and nozzle type, density and viscosity of fluid were considered for this study. The fluid properties like density and viscosity were calculated for lime juice and distilled water of six proportions having at a range of The density increase from 995.33 to 1019.32 (kg/m3) and viscosity increase from 1.03 to 1.9 Centipoise. CFD is a widely used numerical technique that deals with engineering problems which involve fluid flow. ANSYS FLUENT is one of the most common softwares used for CFD analysis. It has various methods of solving a problem. In this paper, the 3 D model of the parts of the models were made by Solid works and analysis were to be carried out by ANSYS FLUENT. The models were first generated using the data and then are meshed and then various spray flow profiles like pressure , eddy viscosity, density , Pressure volume rendering, density volume rendering and eddy viscosity volume rendering contours were to be drawn and graphed in this paper to analyze the flow through the model. From the results obtained I conclude that the flow from both hollow cone and flat fan assembly there was an increase in discharge rate and swath width with increase in pressure from 1.5 to 2.5 kg/cm2, the discharge 0.223 to 0.254 L/min for flat fan nozzle and 0.222 to 0.359 Lit/min for hollow cone nozzle and the swath width 372 to 558 mm for hollow cone nozzle and from 254 to 385 mm for flat fan nozzle. The droplet size decreases with increase in pressure i.e. flat fan (284-263 microns) and hollow cone (336-278 microns).The spray angle also increase with pressure(1.5 to 2.5 kg/cm2 ) and height(400 to 500 mm) i.e. (50 to 69 0 ) for hollow cone nozzle and (35-510 ) for flat fan nozzle.
  • ThesisItemOpen Access
    Morphometric parameters based prioritization of Nayar Watershed using fuzzy analytic hierarchy process
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2020-12) Joshi, Mallika; Pankaj Kumar
    Watershed prioritization has become increasingly crucial for managing natural resources, especially the watersheds. A useful decision support tool to provide appropriate weights to different morphological attributes with lineage with soil erosion is required to identify environmentally stressed areas for the watershed resources. In the present study, an attempt has been made to delineate the Nayar watershed into Eastern Nayar and Western Nayar and further examining morphometric parameters of Eastern and Western Nayar watersheds. The morphometric parameters were quantified under the linear, areal, and relief heads for both the watersheds. The prioritization of sub-watersheds was done by the fuzzy analytic hierarchy process (FAHP). The study included nine morphometric parameters for forming a pairwise comparison matrix: relief, length of overland flow, drainage density, mean bifurcation ratio, stream frequency, texture ratio, elongation ratio, circulatory ratio, and form factor. The fuzzy analytic hierarchy process was employed for assigning the suitable weights to morphometric parameters and further these weights are normalized to assign the final ranks to the subwatershed. In Eastern Nayar, SW7 got the highest priority, and SW1 was categorized as the least priority. In Western Nayar, SW9 got the highest priority, and SW1 got the least priority after ranking. The results were validated by an index known as the consistency ratio, which depends on the matrix consistency index's size. The consistency ratio should be less than 10%, and after evaluating the consistency index of the present study, it came out to be 2%.
  • ThesisItemOpen Access
    Land use suitability and impact assessment of soil conservation and water resources development measures in Garhkundar-Dabar Watershed
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2009-07) Raundal, Yogesh Ashok; Sharma, H.C.
    Land evaluation is important for the successful crop production. The impacts of soil and water resource development measures have been reviewed. Water stored in the checkdam and the sediment load per annum is needed for management of the reservoir water allocation and thus, required to be assessed. Soil conservation measures decreases the sediment load on check dam, substantially. Keeping these facts in view, present study was conducted to study the land use suitability on the basis of the proximity of land to various resources, viz. water availability, distance from sustainable water resource, village and road proximity and the present land use. The constructed surface water resources, i.e. check dams, were measured for their storage capacity and sediment deposited in their bed for two years. The effectiveness of soil conservation measures in sediment transport reduction was studied. Effect of the construction of the water resources development measures i.e. check dam on ground water level build up in the wells located in nearby fields from the check dams. The watershed selected for the study was Garhkundar-Dabar watershed, Madhya Pradesh. Land suitability analysis showed that the, 5.5 ha area was having highest suitability rank, whereas, 327.78 ha was having least suitability which was about 38.23 percent of the watershed area. The total water storage capacity of nine check dams was found whopping amount of 24102.28 m3, which was substantially higher in the area. This water can be successfully used for irrigation purpose. The sediment load of check dams was estimated and it was found that, three check dams out of nine were found critical for their high sediment load. Most critical checkdam was in the control watershed, where no soil conservation measures were adopted. Two check dams in the Garhkundar-Dabar watershed were found critical for loss of capacity due to silting. The sediment load in checkdam, constructed in the control watershed was about 1.9 times higher, equal to 190.25 m3, than the highest sediment load in soil conservation measures adopted watersheds. The water level in the wells, located in nearby areas of checkdam increased by an average of 2.94 m and maximum up to 6.57 m, over a period of one year, at the end of successful rabi crop in the area. Number of dried up wells was reduced to 13, which was 29 last year, out of 50 wells under consideration.
  • ThesisItemOpen Access
    Optimization of process parameters for drying of lotus root slices
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2019-11) Reena Kumari; Omre, P.K.
    The experiment was carried out to standardization of pre-treatment for prevention of browning ant to study the drying characteristics of lotus root slices under different drying conditions. The material was given chemical treatment (Ascorbic acid, Sodium bicarbonate and Potassium metabisulphite) for 10 min. and physical treatment like hot water blanching at 70, 75 and 80 0C for 3, 6 and 9 min. at each temperature. The browning index were measured for 0 to 5 h at every 1 h interval. Based on the browning index, the 0.3 % KMS and hot water blanching at 70 0C for 6 min. + 0.3 % KMS selected as pre-treatment prior to drying. The fresh (untreated) and pre-treated samples was dried at 60, 70 and 80 0C using the tray dryer. The quality parameters of the dried product like rehydration ratio, moisture diffusivity, colour parameters (L*, a* and b*), total phenolic content and antioxidant activity were determined. The initial moisture content was 76.32, 78.24 and 84.56 % (wb) of fresh, dipping in 0.3 % KMS for 10 min and hot water blanching at 70 0C for 6 min. than dipping in 0.3 % KMS for 10 min, samples, respectively. Dehydration characteristics of revealed that drying took place in the falling rate period irrespective of treatment and temperature of drying. The hot water blanched (70 0C for 6 min) + chemical (0.3 % KMS) samples took the least time for drying followed by sample treated with 0.3% KMS and untreated (fresh). The optimized browning index was minimum (1.498 to 4.963) for 0.3 % KMS as compared to 5.337 to 16.02 and 2.73 to 9.227 for 1.5% sodium bicarbonate and Ascorbic acid, respectively. For blanched samples browning index was minimum (3.08) at 70 0C for 5.44 min. as compared to others blanched samples. The rehydration ratio was varied from 1.56 to 2.82, 2.09 to 3.50 and 1.68 to 3.32 for samples with treatment T1 (control), T2 and T3, respectively. The maximum RR was observed for treatment T2 treated samples followed by samples treated with T3 and T1 under all drying conditions, respectively. The maximum RR was 3.58 of 2 mm thick samples treated with T2 treatment. The maximum effective moisture diffusivity 9.37 × 8.85 × and 10.59 × m2 s-1 of 6 mm thick sample treated with treatment T1, T2, and T3, respectively. The total phenolic content of the fresh lotus roots slices extract was found 4.23 mg GAE/g dw. The total phenolic content of dried samples was varied from 2.14 to 2.71, 2.61 to 3.28 for samples treated with treatment T1, T2 and T3, respectively. The maximum phenolic content was 3.51 of 4 mm sample treated with treatment T2. The antioxidant activity of the fresh lotus roots slices was found 93.71 %. The antioxidant activity of dried samples was varied from 62.58 to 78.88, 68.65 to 81.29 and 64.96 to 78.10 for samples treated with treatment T1, T2 and T3, respectively. The maximum antioxidant activity was 81.29 of 4 mm sample treated with treatment T2. The colour parameters L*, a* and b* of fresh lotus root slices were found 100.32, 3.76 and 9.99, respectively. It was observed that the L* values increase as increase in temperature (60 to 80 0C) and decrease as slices thickness increase (2 to 6 mm). Besides that, the values of a* and b* increase as increase in temperature (60 to 80 0C) and slices thickness (2 to 6 mm) of all samples.
  • ThesisItemOpen Access
    Modification of a CI engine into SI mode and its performance evaluation on biogas
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2007-07) Nagaraja, G.; Bhattacharya, T.K.
    In agriculture sector biogas is used in low horse power CI engines in dual fuel mode where about 30 percent diesel and 70 percent biogas are burnt in an engine to develop power. However, biogas has octane rating of 130 which is greater than the petrol (96) and therefore, there lies a potential to run such engines on 100 percent biogas by converting these engine into gas engines operating in SI mode. A constant speed, low bhp (7.4 kW), single cylinder, four stroke, direct injection, Kirlosker make engine having compression ratio of 16.5:1 was converted into SI mode. Major modifications include the removal of diesel fuel supply system, reduction of compression ratio (13:1), installation of spark plug, mounting of ignition system and provision of mixing device for supply of air-biogas mixture. The studies were conducted to assess the performance of modified CI engine on 100 percent biogas with particular emphasis on operational issues and efficiency of converted engine. Observation on suitability from ease of installation and operation as well as care and maintenance using both battery and magneto ignition system were also evaluated. The engine was operated with ignition timing of 250 BTDC. A long duration test of a converted CI engine coupled with an alternator (7.5 kVA) was conducted to evaluate the crank case oil quality when operating on 100 percent biogas. The performance of converted CI engine in respect of generator load, brake specific biogas consumption, thermal efficiency and emission of HC and NOX on biogas was evaluated. The fuel properties of biogas were also studied. The observed results of the experiment indicated that the CI engine converted to SI mode could develop maximum brake power of 4.5 kW on 100 percent biogas but at this output there was significant drop in engine speed. The drop in power is due to low heating value of biogas. It is therefore, suggested that the engine be operated at 1352 rpm developing 3 kW brake power for satisfactory operation of electrical devices through the coupled alternator and corresponding brake thermal efficiency was found to be 15.5 percent. The magneto ignition system found satisfactory for installation and operation than battery ignition system. The hydrocarbon and NOX emissions were observed lower on 100 percent biogas as compared to diesel and petrol. The long duration test of the converted engine on 100 percent biogas indicated no deterioration in crankcase oil quality however the engine should be operated for 500 hours for thorough evaluation of crankcase oil quality.
  • ThesisItemOpen Access
    Effect of cyclic irrigation and fertigation on off season production of Capsicum (Capsicum annuum L.) under protected environment
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2007-05) Negera, Gonfa Bayissa; Singh, K.K.
    The present study was undertaken to investigate the ―Effect of Cyclic irrigation and Fertigation on Off –Season production of Capsicum (Capsicum annuum L.)Under protected environment. The site is located at experimental field of Department of Irrigation and Drainage Engineering, College of Technology, G. B. Pant University of Agriculture and Technology, Pantnagar. Soil solarization in polyhouses, studying of the various metrological parameters inside and out side the polyhouses, the response of different levels of irrigation and cyclic irrigation on the biometric observation of capsicum and studying economic feasibility of production of capsicum under polyhouses were some of the methods employed during the study. The result revealed that the general trend of the temperature of solarized soil has been higher near the soil surface and became cooler with increasing soil depth. The mean maximum temperature was higher in naturally ventilated polyhouse (NVPH)(33.06 0C) followed by open field condition (25.04 0C) than environmentally controlled polyhouse (ECPH)(24.66 0C) while the minimum temperature was also higher in the NVPH (13.05 0C) but followed by ECPH (12.85 0C)than the open field condition (11.46 0C). The mean daily variation of temperature at 9:00am was higher in NVPH (22.20 0C), followed by ECPH (20.12 0C) than the open field condition (19.67 0C). At the same time at 12:00hrs and 4:00pm it was higher in NVPH but followed by open field condition than in ECPH. The mean daily variation of relative humidity at 9:00am, 12:00hrs and 4:00pm was higher in NVPH followed by open field than the ECPH while the mean daily variation in solar intensity at 9:00am, 12:00hrs and 4:00pm was higher in open field followed by ECPH than NVPH. The crop evapotranspiration (ETc) was higher in open field, followed by NVPH than in ECPH. The average mean daily ETc in open field, NVPH, and ECPH were 2.40, 2.00 and 1.72mm/day respectively. During the six month off-season growing period the total water required at 100% level of irrigation in ECPH was 209.44mm and at 75% level 157.08mm and in NVPH at 100% level 243.98mm and at 75% 182.99mm while in open field 307.27mm depth. The yield of capsicum per plant and per square meter was maximum in ECPH (2.63kg/plant, 9.71 kg/m2) followed by NVPH (2.51kg/plant, 9.16kg/plant) and in open field (0.49kg/plant, 1.81kg/m2). In NVPH the mean value of yield per m2 was significantly higher in split fertigation treatment (10.63kg/m2) than normal fertigation, N (8.39 kg/m2). At the same time at 100% level of irrigation the mean maximum value of yield per m2 was 9.27kg/m2 than 75% level 9.04kg/m2. During Of-season production of Capsicum under different level of irrigation and cyclic irrigation and fertigation was more economically feasible in NVPH at the selling price above 15Rs/kg than ECPH and open field condition.