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Titik Nur Hidayah
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Effect of Extrusion Cooking Temperature and Mixtures of Sweetpotato (Ipomoea batatas L) and Bogor Bean (Voandzeia subterranea L THOUARS on Some Properties of Extrudates Hidayah, Titik Nur; Mangunwidjaja, D; Sunarti, T. C.; Sutrisno, Sutrisno
Jurnal Teknologi Pertanian Vol 6, No 2 (2005)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

The experiment aimed to evaluate the physical properties of extrudates made up of a mixture of Bogor bean and sweetpotato was conducted in two stages. The first experiment was run to determine the best blanching time for the bean and the second one is to evaluate the effect of various levels of die temperature and mixtures of Bogor bean and sweetpotato on some physical properties of extrudates. The process for the second experiment were conducted on three levels of die temperature i.e 100°C, 140°C, and 180°C on three level of mixtures of sweetpotato/Bogor bean: 90/10, 75/25, and 60/40, respectively. The results of the first experiment indicated that a blanching treatment for 15 minutes to the bean produced a better physical quality parameter than the use of unblanched and 5 min-blanched bean as raw material. It was found that the texture (degree of crispiness), degree of expansion, viscosity and spesific gravity of the extrudates were significantly affected by the above-mentioned factors. The best physical properties were observed on the extrudate made up of a mixture of 90% sweetpotato and 10% Bogor bean at a die temperature of 100°C.   Key words: Extrusion, sweetpotato, kacang Bogor, physical properties
Planning of the Ergonomic Seat for Four Wheel Tractor Based on Anthropometry Lutfi, Musthofa; Anam, Khoirul; Hidayah, Titik Nur
Jurnal Teknologi Pertanian Vol 11, No 2 (2010)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

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Abstract

Seat is a dominant factor in increasing the healthy and safety for four-wheel tractor operator.  Therefore it is needed to be designed to suit the Indonesian people body’s dimension in general. This study was done to measure the body’s dimension of 100 students at the age of 19 to 30 years old. The data collected from this sample were: genuflection height data, shoulder’s height to sitting position data, pelvis width data, the distance of genuflection to the base data, the distance of the curve central point of vertebrate, and the weight of body in sitting position. The result of this study shows that: the present height of tractor seat base is 35 cm, while the proposed height is 39 cm. The present length of seat base is 34 cm while the proposed length is 51 cm. The present width of the seat base is 34 cm while the proposed width is 41 cm. The present height of back of the seat is 27 cm while the proposed height is 64 cm. The present width of back of the seat is 40 cm while the proposed width is 50 cm. The proposed curved of the back is 33 cm. The load can be resisted is 53 kg. Keywords: anthropometrics, tractor, ergonomic
Co-Authors A.A. Ketut Agung Cahyawan W D Mangunwidjaja KHOIRUL ANAM Musthofa Lutfi T. C. Sunarti