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Parboiling Duration Effects on Physical Properties of African Breadfruit Seed CIGR Journal
Obi, Okey Francis; Okechukwu, Michael Emeka.
Abstract Parboiling is a pre-dehulling operation and, the effect on the physical properties of African breadfruit seed (var. africana) was investigated. Freshly extracted seeds were parboiled for 0 (control), 5, 10, 15, and 20 minutes, and their physical properties determined. It was observed that parboiling time had a significant effect (p<0.05) on all the physical properties of African breadfruit seeds investigated. The moisture content of the seed ranged from 32.92±0.23 to 50.78±0.19 % (w.b.) as the parboiling time increased. Generally, it was observed that the mean values observed for the physical dimensions (axial dimensions, mean diameters, sphericity, aspect ratio and surface area) increased from 0 to 10 min. parboiling time after which the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: African breadfruit; Parboiling time; Physical properties; Frictional properties.
Ano: 2020 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4918
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Determination of Physical and Aerodynamic Characteristics of African Olive (Canarium Schweinfurthii) Nut CIGR Journal
Obi, Okey Francis; Ijere, Chimuanya Emeka; Okechukwu, Michael Emeka.
This study investigated the physical and aerodynamic properties of African olive (Canarium schweinfurthii) nuts. The nut mass frequency was identified and three fractions of the nut were defined to determine their properties. Generally, it was observed that the physical and aerodynamic characteristics of the nut were significantly influenced by the unit mass. Comparison of means revealed that the mean values of the nut physical and aerodynamic properties were significantly different between fractions at p<0.05 except for the true density. The static angle of repose appeared higher than the dynamic angle of repose for all the nut fractions. The coefficient of static friction of the nut fractions on different material surfaces was highest on plywood and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural and Bioresources Engineering Canarium schweinfurthii nut; Physical properties; Aerodynamics properties; Models.
Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4820
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