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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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Subject: Agricultural Engineering × End date: 2009 × Start date: 2009 ×
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Now showing 1 - 7 of 7
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    ThesisItemOpen Access
    DEPTH OF PLOUGHING AND ITS EFFECT ON RUNOFF SOIL LOSS AND INFILTRATION IN THE BORDERSTRIPS UNDER DRYLAND CONDITIONS OF BANGALORE
    (University of Agricultural Sciences GKVK, Banglore, 2009-03-16) T. S. KUMARA, SWAMY; M. CHOWDE, GOWDA
    NO Abstract
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    ThesisItemOpen Access
    STUDIES ON DRYING OF METHI LEAVES {Trigonella foenum graecum L.)
    (University of Agricultural Sciences GKVK, Banglore, 2009-08-22) SHOBA, H.; B. Ranganna
    No Abstract
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    ThesisItemOpen Access
    INFILTRATION STUDY ON THE EFFECT OF CULTURAL PRACTICES IN RED SANDY LOAM SOIL OF BANGALORE
    (University of Agricultural Sciences GKVK, Banglore, 2009-03-16) J. VENKATESH; R. RAMAIAH
    No Abstract
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    ThesisItemOpen Access
    DEVELOPMENT OF A PROTOTYPE FOR DECORTICATION OF PONGAMIA PODS (Pongamia pinnata L.)
    (University of Agricultural Sciences, Bangalore, 2009-07-15) VASANTH KUMAR., G. D.; Ramkumar, M. V.
    Pongamia is a tree borne oil seed (TBO’s) belonging to the family fabaceae. Historically, this plant has long been used in India and neighbouring regions as a source of traditional medicines, animal fodder, green manure, timber and fuel. More recently, pongamia pinnata has been recognised as a viable source of soap industry, leather industry and as a source of oil for the burgeoning biofuel industry. The mature pod consists of kernels and is reported to contain about 27-35% of oil. Decortication is the main process in the post harvest processing of pongamia. Graded and ungraded pods are the two main categories in pongamia pod. During processing the ungraded pods gave maximum output compared to graded pods. However, the kernel damage noticed was maximum in ungraded pods. The damage to the kernel during the decortications of pongamia pods does not affect the commercial value of the product. A decortication machine was developed to address an important operation of separating kernels from the pods. The prototype machine was tested for both category of pods and for different machine clearances (8 and 9 mm) and for different drum speeds (250, 300, 350 rpm) at 7.5 and 10 per cent moisture contents. The maximum output recorded was 118.78kg/h at 8 mm clearance and 250 rpm drum speed in ungraded pods at 7.5 per cent moisture content. Among the two clearances (8 and 9 mm) studied, 8 mm clearance found to be the best, considering the damages to the kernel and decortication efficiency. The decortication of pongamia pods through the prototype developed could save processing time cost, and labour. The maximum efficiency was 95.84% in graded pods at 7.5 per cent moisture content at 8mm clearance and 250 rpm drum speed. Further the machine decortication process was three and half times faster than the manual method. The cost of the developed prototype of pongamia decorticating machine was Rs. 7031.08 and the processing cost of converting 1 kg of pongamia pods into kernel was only Re.0.27 but in case of traditional it is Re.1.00.
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    ThesisItemOpen Access
    STUDIES ON DRYING OF METHI LEAVES (Trigonella foenum graecum L.)
    (University of Agricultural Sciences, Bangalore, 2009-07-15) SHOBA, H.; Ranganna, B.
    Fenugreek, a native of South Eastern Europe and West Asia, is cultivated as a leafy vegetable, condiment and as a medicinal plant. The fresh tender leaves and stem are consumed as curried vegetables and the seeds are mainly used as spice for flavoring almost all dishes. Dehydrated leafy vegetables have the potential to become an important product because of relatively inexpensive, quickly cookable and rich in several nutrients which are essential for human health. Drying of leafy vegetables and making them use in the un-seasons opens up new vistas in the field of food technology, as they are rich in antioxidants and could be added as the natural antioxidants to develop new commercial products. Hence, a research study was taken up to study the drying, storage and packaging of fenugreek leafy vegetable, to serve as a domestic and exportable food material. Before drying the methi leaves, different types of pre-treatment were imposed i.e., Dipping in 2% KMS for 15 min at room temperature, Dipping in 2% KMS, 0.1% MgCl2, 0.1% NaHCO3 for 15 min at room temperature, Dipping in 2% KMS, 0.1% MgCl2, 0.1% NaHCO3 for 30 second in a warm water at 60ºC and cooling immediately in tap water and Control (without pre-treatment). The best selected pretreatment and Control were used for further dehydration studies. Different drying methods like: Open sun drying, Tray drying, Microwave drying and Vacuum oven drying were studied for producing a good quality of dried product. The drying time for Sun drying varied between 14 and 12h, for Tray drying it was 12 and 11h and for microwave drying it varied between 15 and10 min, for Vacuum oven drying varied from 9 and 7h for both Control and pretreated methi leaves, respectively. The quality of dried samples were also evaluated on the basis of physiconutritional properties like, β-carotene, Ascorbic acid, chlorophyll content, rehydration ratio, rehydration coefficient, colour and sensory properties. The results revealed that the samples dried in micro-wave drying resulted in good quality of dried methi product. Studies were also conducted on enhancement of shelf life and storage stability of dried powder by packing them in polyethylene (PE) (300, 400 and 500 G) and stored at different temperature (ambient and 10oC).The product dried in micro wave dryer and packed in PE of 500 G and stored at 10oC as highly superior in terms of physical and nutritional properties.
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    ThesisItemOpen Access
    DESIGN AND DEVELOPMENT OF AN IMPROVED ON-FARM POTATO STORAGE SYSTEM SUITABLE FOR CLIMATIC CONDITIONS OF SOUTHERN KARNATAKA
    (University of Agricultural Sciences GKVK, Bangalore, 2009-03-20) RAGHU, K.; PALANIMUTHU, V.
    An improved on-farm potato storage system was designed and developed. The new system was basically an improvement over traditional heap storage in which a tubular natural convection aeration system was incorporated. The aeration system consisted of a perforated PVC pipe with vertical raisers at one meter intervals laid along the length of the heap. Potato storage study was conducted for 90 days with one tonne of fresh, suberized tubers using improved potato storage system at ambient conditions of ARS, Madenur, Hassan during Kharif season. For comparison, identical traditional heap storage was also laid out. Temperature and relative humidity was recorded at different places inside potato heaps using data loggers throughout the storage period. Observations on total storage loss, physiological loss of weight (PLW), loss due to rotting and sprouting percent were made at 15 days interval. Biochemical parameters such as starch, reducing sugars, total sugars and phenol content were analyzed before and after storage. In improved storage system, the temperature inside the heap was around 2-3°C lower and the relative humidity at any given time was uniform throughout the potato heap when compared to traditional storage system. The PLW of tubers was 3.34 and 3.50% after 15 days of storage which increased to 13.50 and 14.94% after 90 days of storage respectively in improved and traditional storage systems. The tubers stored in improved storage system were observed to be of good quality in terms of biochemical parameters and the total storage loss was about 4.24% lower as compared to traditional storage system. Ten potato varieties / hybrids were also simultaneously tested for their storability and quality at ambient conditions. For different varieties, the total weight loss of tubers varied from 16.01 (Kufri Surya) to 28.29 % (MP/98-172) during 90 days of storage and overall hybrid Atlantic showed good storability.
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    ThesisItemOpen Access
    STUDIES ON SHELF LIFE EXTENSION OF SWEET CORN (Zea mays var. Rugosa)
    (UNIVERSITY OF AGRICULTURAL SCIENCES GKVK, BENGALURU, 2009-07-10) GEETA, H PUDAKALAKATTI; Palanimuthu, V
    Sweet corn (Zea mays var. Rugosa) is a perishable agricultural commodity prone to rapid post harvest deterioration in quality especially the loss of sweetness. An investigation was undertaken to increase the shelf-life of fresh sweet corn cobs to benefit both farmers and consumers. The physical characteristics of fresh sweet corn cobs were measured to be: length - 237.5 ± 17.0 mm, diameter - 55.62 ± 3.42 mm, unit weight - 361.26 ± 34.24 g, bulk density - 1150.55 ± 0.58 kg/m3 and ear-to-kernel ratio - 2.3:1. Biochemical analysis showed that sweet corn kernels had 76.14 ± 0.78% moisture, 14.62 ± 0.4% starch, 1.8 ± 0.1% crude fiber, 37.5 ± 0.5% total sugars, 34.7 ± 0.3% non-reducing sugars and 2.8 ± 0.05% reducing sugars. Respiration characteristics, physiological loss in weight (PLW), sensory quality and microbial quality of sweet corn cobs stored with and without husk were studied at five different temperatures. The initial respiration rate (in ml CO2 / kg-h) of fresh sweet corn cob with husk was 140 and the peak respiration rates at 30, 20, 10, 5 and 0ºC were respectively 416.7, 265.2, 188.4, 170.4 and 162.1. The PLW of cobs with husk during storage was 0.83-3.74%, 0.94-5.26%, 1.07-5.74%, 3.59-8.00% and 4.29-15.35% at 0, 5, 10, 20 and 30ºC, respectively. The optimum storage temperature, selected based on peak respiration rate, PLW and storability without microbial infestation for sweet corn was found to be 0ºC. Further, a storage study of sweet corn cob using six different packaging systems was conducted at 0ºC. Modified Atmosphere Packaging systems with silicone membrane and diffusion channel, LDPE film bags with and without ventilation, vacuum packaging and shrink wrapping were tried. Among different packaging systems tested for sweet corn storage, the least value of PLW (0.533%), better retention of total sugar in corn kernels (without conversion into starch), maximum shelf-life (16 days) and high sensory quality was observed with shrink wrapped cobs.