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Author: search.filters.author.Pornchaloempong, PimpenSubject: search.filters.subject.Physical properties

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    Item type:Publication,
    Mass-volume-area properties of frozen Skipjack tuna
    (2012-05-01)
    Pornchaloempong, Pimpen
    ;
    Sirisomboon, Panmanas
    ;
    Nunak, Navapattra
    This study investigates the physical properties of Skipjack tuna (Katsuwonus pelamis), including weight, size, volume, apparent density, surface and projected area, and the correlation between these parameters. An analysis of the physical characteristics of the Skipjack tuna suggests that its shape can be broken down into three main sections: the head, the center, and the tail. The central section of Skipjack tuna can be considered a barrel shape with an elliptical cross section, whereas the head and tail can be considered cones with elliptical bases. Linear regression analyses between fish weight and other geometric properties revealed a significant correlation (R<sup>2</sup> = 0.74-0.97) to volume, projected area (side and top view), length, width (measured at the thickest part), and perimeter (measured at the thickest part). The results from this systematic analysis could be used in the design of new processes and equipment for Skipjack tuna processing. © 2012 Copyright Taylor and Francis Group, LLC.
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    Physical properties of green soybean: Criteria for sorting
    (2007-03-01)
    Sirisomboon, Panmanas
    ;
    Pornchaloempong, Pimpen
    ;
    Romphophak, Teeranud
    The objective of this research was to explore the possibility in developing a criteria for green soybean (Glycine max variety AGS 292) sorter. Green soybean could be classified into two main categories by its usage; the perfect pods (3-seed pod and 2-big seed pod) contained 47%, the rest was imperfect pods including 2-small seed pod, 1-seed pod, atrophied pod, twisted pod, and defected pod. Some important physical characteristics were investigated including width, length, thickness, pod weight, pod projected area, apparent density, bulk density, and seed firmness. The results illustrated that the perfect pods had length, pod weight, projected area and seed firmness significantly larger than the imperfect pods. All pod groups had apparent density equal or lower than water. Among all pod groups, the 2-big seed pods had the highest bulk density, thickest pod, and the firmest seed. The application of these physical properties for green soybean sorting was also proposed. © 2006 Elsevier Ltd. All rights reserved.