Rohny S. Maail
Jurusan Kehutanan, Fakultas Pertanian, Universitas Pattimura, Ambon, 97233

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Sifat Fisis Dan Keunggulan Papan Semen Dari Limbah Kulit Batang Sagu Rohny S. Maail; Irfan Derlauw
MAKILA Vol 13 No 2 (2019): Makila : Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (848.563 KB) | DOI: 10.30598/makila.v13i2.2438

Abstract

This research aimed to determine the physical properties and advantages of cement boards made from sago stem bark waste based on the test results of several parameters, according to JIS A 5908 (2003) standard. The results show that the physical properties of cement board from sago stem bark waste with the addition of the CaCl2 catalyst were good with the average value of cement board density ranged from 1.19-1.26 gr/cm³, water content 7,67-8,02%, water absorption after immersion 2 hours 6,03-7.65% and after 24-hour immersion 11,62-12,91%, respectively. The averages swelling value of board thickness after immersion 2 hours 1.62-12,91% and after immersion 24 hours 1.40-3.41%. Furthermore, sago bark waste in various positions of the tree trunk (tree base, middle, and top) can be utilized to manufacture the cement board. However, the board made from sago stem bark waste at the ground with the addition of a catalyst CaCl2 6% has the best physical properties and meets JIS A 5908 (2003) standard. Cement boards from sago stem bark waste have an excellent waterproof capability and can be used as outdoor materials.
Analisis Sifat Fisis dan Kimia Produk Minyak Kayu Putih di Pasaran Kota Ambon Rohny S. Maail; Vence Purimahua
MAKILA Vol 14 No 1 (2020): Makila : Jurnal Penelitian Kehutanan
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (613.967 KB) | DOI: 10.30598/makila.v14i1.2507

Abstract

This study analyzes the physical and chemical characteristics of eucalyptus oil products in the Ambon city market. Eucalyptus oil stamped Merpati Putih/MP to determine the quality grade of MP eucalyptus oil. The MP quality grade is based on the chemical component content level of 1,8-cineole. Furthermore, according to results of the testing on the physics properties of some parameters as required at SNI 3954-2014 about Eucalyptus (Cajuput) Oil standard, and the analysis of chemical components through GC-MS apparatus, the results shows that the MP Cajuput oil has the properties of physics that meet the required standards, among others: the specific gravity (BJ) of 0917, light green-colored towards clear, smelling as typical cajuput oil (original), the refractive indexes at ambient was about 1.469; there was no mixing with other oils (clear) and the absence of fatty oil with an optical rotation value at (-) 0, 33o, respectively. However, the results of the analysis of chemical components by GC-MS proved that the quality of the MP Cajuput oil at the first quality class was based on SNI 3954-2014 due to contains 1.8-cineole whose it value was within the standard ranges of 50 to < 55%, which is 52.51%