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| AVIARA, NDUBISI A.; Iyilade, Idowu J.; Oyeniyi, Samuel K.; Aremu, Ademola K.. |
| The use of inappropriate equipment to crack bush mango nut and obtain the kernel has adversely affected the efficiency of its processing operations. The manual method, which involves cracking the nut with stone or pestle and mortar, is not only slow and risky, but also wasteful. In order to develop appropriate processing equipment for the nut, knowledge of its mechanical properties is necessary. This study was undertaken to determine some strength properties of the nut at different moisture contents under lateral and longitudinal loading orientations, using Universal Testing Machine (UTM). In the moisture range of 7.52% - 20.6% (d.b) under both lateral and longitudinal loading orientations, results of tests showed that all the strength properties (bioyield... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Mechanical properties; Bush mango nut; Irvingia gabonensis; Moisture content; Loading orientation; Universal Testing Machine (UTM). |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5092 |
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| AVIARA, NDUBISI A.; iyilade, Idowu A.; Aremu, Ademola K; Oyeniyi, Samuel K. |
| The effect of moisture content on some physical properties of Bush Mango (Irvingia gabonensis) nut was studied at four moisture levels in the range of 7.52% - 20.6% (d.b). Results showed that the length, width and thickness of nut increased from 37.84 to 50.16 mm, 30.23 to 42.62 mm and 19.25 to 28.15 mm respectively, as moisture content increased in the above range. Nut sphericity decreased from 76.2% to 69.5% as moisture content increased. One thousand seed weight, bulk density, true density and angle of repose increased from 6.634 to 9.158 kg, 756.7 to 1095 kgm-3, 984.4 to 1095kgm-3 and 25.3 to 38.9o respectively, in the above moisture range. Static coefficient of friction on different surfaces increased in the order of fiber glass (0.378 to 0.394),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Moisture content; Dika nut; Irvingia gabonensis; Size; Shape; Gravimetric; Frictional properties. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5089 |
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| AVIARA, NDUBISI A.; Iyilade, Idowu J.; Oyeniyi, Samuel K.; Aremu, Ademola K.. |
| A bush mango (Irvingia gabonensis) nut handling machine was developed to ease the tedium involved in the cracking operation and enhance the efficiency of separating the kernels from hulls. The machine consists of a hopper, cracking unit barrel, electric motor, blower, tool frame, hull outlet and kernel outlet. It operates on the principle of impact using centrifugal force from the baffles on a spinning disc. Results of performance tests carried out using nuts at four moisture levels in the range of 7.52-20.6% (d.b) showed that percent effective cracking decreased, while percentage kernel breakage increased with increase in feed rate, moisture content and resident time of nuts in the cracking chamber. Winnowing efficiency increased with feed rate and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural Engineering; Post harvest Technology; Crop Processing Bush mango nut; Design and construction; Performance evaluation; Cracking; Efficiency. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5093 |
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