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Some Physical & Mechanical Properties of Marking Nut and Kernel


Affiliations
1 Department of Agricultural Engineering, Maharastra Institute of Technology, India
2 Department of Mechanical Engineering, Marathwada Institute of Technology, Aurangabad, Maharashtra, India
 

Marking nut or 'SemecarpusAnacardium L.' also known as 'bibba' or 'bhilawa'. Marking nut has a double walled shell and cracking shells yields toxic resin (Bhilawan shell liquid) & enclosed dry kernel. Present study objective is to determine design parameters of marking nut & kernel for development of efficient marking nut deshelling machine. X-rays images of nuts by AGFA Image processing software of 100 marking nuts show tremendous variation in shape & size of nut & kernel. Sphericity, bulk density, thousand nut mass were found in range of 0.92 to 0.79, 572.22 to 528.48 kg/m3, 2015.40 to 3365 grams & corresponding values for Kernel 0.63 to 0.67, 540 to 478.62 Kg/m3, 232 to 410 grams. Average shell thickness was found to be 3.5mm. For marking nuts at 12% moisture (d.b) Hardness & deformation was found 87.64N & 3.20mm, at 9.63% moisture (d.b) 93.98N & 2.50mm, at 4.86% moisture 118N & 0.65mm, respectively. Rupture force for nuts by compression was found to be in range of 23.21 Kg to 37.34 Kg. Texture profile analysis of kernel was performed at 3.02% moisture (d.b) & Hardness was found to be 19.98N at cycle-1, 17.77N at cycle-2, this shows kernel is delicate then the nut & easily cracked at lower forces. Springiness & cohesiveness were determined and found to be 0.62 & 0.53, respectively.

Keywords

Marking Nut, Bhilawan Shell Liquid (BSL), Physical Properties, Mechanical Properties.
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  • Some Physical & Mechanical Properties of Marking Nut and Kernel

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Authors

A. K. Bhardwaj
Department of Agricultural Engineering, Maharastra Institute of Technology, India
D. T. Bornare
Department of Agricultural Engineering, Maharastra Institute of Technology, India
S. R. Patil
Department of Agricultural Engineering, Maharastra Institute of Technology, India
R. S. Sharma
Department of Mechanical Engineering, Marathwada Institute of Technology, Aurangabad, Maharashtra, India

Abstract


Marking nut or 'SemecarpusAnacardium L.' also known as 'bibba' or 'bhilawa'. Marking nut has a double walled shell and cracking shells yields toxic resin (Bhilawan shell liquid) & enclosed dry kernel. Present study objective is to determine design parameters of marking nut & kernel for development of efficient marking nut deshelling machine. X-rays images of nuts by AGFA Image processing software of 100 marking nuts show tremendous variation in shape & size of nut & kernel. Sphericity, bulk density, thousand nut mass were found in range of 0.92 to 0.79, 572.22 to 528.48 kg/m3, 2015.40 to 3365 grams & corresponding values for Kernel 0.63 to 0.67, 540 to 478.62 Kg/m3, 232 to 410 grams. Average shell thickness was found to be 3.5mm. For marking nuts at 12% moisture (d.b) Hardness & deformation was found 87.64N & 3.20mm, at 9.63% moisture (d.b) 93.98N & 2.50mm, at 4.86% moisture 118N & 0.65mm, respectively. Rupture force for nuts by compression was found to be in range of 23.21 Kg to 37.34 Kg. Texture profile analysis of kernel was performed at 3.02% moisture (d.b) & Hardness was found to be 19.98N at cycle-1, 17.77N at cycle-2, this shows kernel is delicate then the nut & easily cracked at lower forces. Springiness & cohesiveness were determined and found to be 0.62 & 0.53, respectively.

Keywords


Marking Nut, Bhilawan Shell Liquid (BSL), Physical Properties, Mechanical Properties.

References