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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: Processing and Food Engineering × Author: MADHUSUDAN, NAYAK .C × End date: 2019 × Type: Thesis ×
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    ThesisItemOpen Access
    DEVELOPMENT OF A HAND OPERATED DECORTICATOR FOR SIMAROUBA (simarouba glauca L.) NUTLETS
    (University of Agricultural Sciences, Bengaluru, 2014-08-15) MADHUSUDAN, NAYAK .C; Ramachandra, M.
    Simarouba (Simarouba glauca L.) belonging to the family simarubaceae, is one of the promising bio-fuel trees which has a potential to become a new source of bio-oil. Simarouba nutlets have a hard cover which is difficult to separate from the kernels. The conventional method of decortication is a laborious slow process. Hence, a hand operated decorticator for simarouba nutlets was developed and evaluated. The physical properties of the nutlets and kernels were determined. The decorticator consists of a rocking type threshing bar with a concave. Two types of threshing bars namely peg tooth and raspbar were tried for decortication. Three threshing bars were fixed at the bottom of the handle and the clearance between the threshing bars and concave can be varied by an adjustment provided in the handle. The concave has 156 oblong holes of size 43 X 7 mm. The concave sheet is semicircular in shape fixed to the frame. Decortication trials were conducted for three moisture levels (8, 6 and 4 % m.c.) of simarouba nutlets for three clearances of 6, 7 and 8 mm and for the two types of threshing bars. The results indicated that the nutlets of 4 % m.c. with the peg tooth type of threshing bar having a clearance of 7 mm, provided a higher decortication efficiency of 93.8 % and had a capacity of 6.6 Kg/h with a better whole kernel recovery. The developed decorticator is easy to operate and economical. The cost benefit ratio is 1:3 compared to hand shelling.