Judul: Pembuatan Binderless Papan Partikel Dari Bungkil Jarak Kepyar (Ricinus communis L)
Abstrak: Castor cake meal is by-product generated from castor oil industry which contains high protein (38,58 %). This research used castor cake meal as raw material for binderless particleboard production. The objective of this research was to determine the effect of pressing temperature and pressure on physical and mechanical properties of particleboard, and to obtain the optimum pressing temperature and pressure for particleboard production. The experimental design used Central Composite Design (CCD) with variables of temperature (160 – 180 oC) and pressure (160 - 200 kgf/cm2). Data obtained were analyzed by ANOVA (α = 0,05) and Response Surface Method (RSM). The physical and mechanical properties of particleboard were tested based on JIS A 5908 : 2003. Generally the physical and mechanical properties of particleboard were not accordance to JIS A 5908 : 2003 except moisture content. Pressing temperature and pressure affected the physical and mechanical properties of particleboard. The optimum temperature and pressure to produce the particleboard from castor cake meal were respectively 160o C and 200 kgf/cm2 with density of 0,94 g/cm3, moisture content of 5,85 %, water absorption for 2 hours of 42,87 %, water absorption for 24 hours of 80,35 %, thickness swelling for 2 hours of 27,79 %, thickness swelling for 24 hours of 36,17 %, MOE of 256,65 kgf/cm2 and MOR of 4,73 kgf/cm2.
Keyword: MOR, MOE, particleboard, Castor cake meal

Judul: Optimasi Suhu dan Tekanan Kempa pada Pembuatan Papan Partikel dari Bungkil Jarak Kepyar (Ricinus communis L)
Abstrak: Castor cake meal contains 48.07% of protein and 12.28% of fiber. The high protein and fiber contents are potential to be used as particleboard raw material. This research aimed to determine the effect of pressing temperature and pressure on physical and mechanical properties of particleboard, and to obtain the optimum temperature and pressure in production of particleboard from pressing castor cake meal. This research designed by using Central Composite Design (CCD), data were analyzed by ANOVA (α = 0.05) and Response Surface Method (RSM). Temperature of 180 oC and pressure of 200 kgf/cm2 produced the best particleboard with MOR of 24.17 kgf/cm2, MOE of 2 658.56 kgf/cm2, thickness swelling of 13.33%, water absorption of 78.18% and moisture content of 5.85%. Temperature effected all tested responses, whereas pressing pressure effected only the moisture content and the water absorption of particleboard. The optimum pressing temperature and pressure based on regression model of MOR in production of particleboard from castor cake meal were 180 °C and 186 kgf/cm2.
Keyword: pressure., temperature, optimization, particleboard, castor cake meal

Judul: Trichomonas Gallinae Penyebab Trichomonosis Pada Unggas
Abstrak: Trichomonas gallinae adalah protozoa yang bergerak aktof dengan keempat flagella yang mempunyai layar dan pada salah satu sisinya terdapat membran seperti sirip ikan yang berombak. Spesies dari genus Trichomonas ini mempunyai arti penting pada unggas, karena dapat menyebabkan infeksi pada alat pencernaan bagian atas.
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