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Influence of Moisture Content and Compression Axis on Physico-mechanical Properties of Shorea robusta Seeds

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Abstract

Shorea robusta (Sal) is mainly harvested and processed for its seed oil, which has diverse application in commercial food and non-food based industries. Before extraction of its oil, seeds undergo into various post-harvest unit operations. Physical and mechanical properties play an important role in the handling and other processing activity. In this study influence of moisture content and compression axis of sal seed on physico-mechanical properties were studied and their application are highlighted. The experiments were conducted at five different moisture levels of 6.38, 10.49, 13.63, 17.64, and 21.95% (d.b) at two different orientations. The first orientation is on major axis (LEN) of the seed, and the other orientation is on intermediate or minor axis (WID), which is right angle to the major axis. It was observed that 68% of sal seeds were of medium size group at initial moisture content of 10.49% (d.b). The mean length and width of sal seed was found to be 26.7 mm and 12.8 mm, respectively. It was found that values of hardness, deformation at hardness, deformation at hardness percentage and energy for rupture were higher in minor axis (WID) as compared to the major axis (LEN). The results provide necessary data that may be useful to engineers, scientists, industries in the design of a suitable post-harvest processing machine.

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Authors and Affiliations

  1. Department of Food Process Engineering, National Institute of Technology, Rourkela, India

    C. Shashikumar, R. C. Pradhan & S. Mishra

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  1. C. Shashikumar
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  2. R. C. Pradhan
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  3. S. Mishra
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Correspondence to R. C. Pradhan.

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Shashikumar, C., Pradhan, R.C. & Mishra, S. Influence of Moisture Content and Compression Axis on Physico-mechanical Properties of Shorea robusta Seeds. J. Inst. Eng. India Ser. A 99, 279–286 (2018). https://doi.org/10.1007/s40030-018-0274-y

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  • DOI: https://doi.org/10.1007/s40030-018-0274-y

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