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: Karakteristik Papan Partikel Tanpa Perekat dari Serat Sabut Kelapa dengan Perlakuan Oksidasi, Penambahan Parafin dan Waktu Kempa
Abstrak: Manufacture of binderless particleboard from coconut fiber research was done as an effort to use alternatives raw materials in timber industry which has become limited and to reduce adhesives synthetic that has pollute the environment such as urea formaldehyde (UF). Paraffin was expected to make the physical properties of particleboard better. The purpose of this research was to know the characteristics of binderless particleboard from coconut fiber based on particleboard standard JIS A 5908:2003 and determine the influence of oxidation treatment, additional paraffin and time of pressing on the characteristics of particleboard. Oxidation method was done by spraying hydrogen peroxide (15%) and ferrosulfate (7.5%), 10 minutes of pressing and 20 minutes at temperature 180 ºC with a pressure of 25 kgf/cm2. The results: density (0.44-0.56 g/cm3), moisture content (5.94-10.08%), all treatment met the standards. The results of strong hold spanner (19-80 kgf): only combination of oxidation treatment that met the standards. The result of thickness swelling: only combination of oxidation treatment, paraffin 0.5% and without paraffin with 20 minutes of pressing (8% and 12%) met the standards. In conclusion for all the treatment, the one that didn’t meet JIS standard: Internal Bond (IB), Modulus of Elasticity (MOE) and Modulus of Rupture (MOR).
Keyword: pressing time, particleboard, paraffin, oxidation, JIS A5908:2003, coconut fiber

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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