The Malaysian Journal of Analytical Sciences Vol 16 No 3 (2012): 228 – 234

 

 

 

CHEMICAL PROPERTIES OF JUVENILE LATEX TIMBER CLONE RUBBERWOOD TREES

 

(Sifat Kimia Klon Kayu Getah Juvenil)

 

Junaiza Ahmad Zaki¹, Suhaimi Muhammed¹, Amran Shafie¹ and Wan Rosli Wan Daud²

 

¹Faculty of Applied Sciences,

UiTM Pahang, 26400 Bandar Tun Abdul Razak, Jengka, Pahang Darul Makmur, Malaysia

²School of Industrial Technology,

Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia

 

*Corresponding author:

 

 

Abstract

Latex timber clone (LTC) rubberwwod trees were introduced by Lembaga Getah Malaysia (LGM) for obtaining good yield of latex as well as the quality timber. Two juvenile clones namely RRIM2009 and RRIM2024 were selected for measuring the chemical properties based on TAPPI standards and were assessed at different height levels (top, middle and bottom). These chemical properties of wood can serve as an indicator for predicting the wood behavior for specific end usage. The findings revealed that there were significant variation between the clones and the highest value was obtained at the bottom portion except for lignin content. Clone RRIM2009 exhibited higher percentage of ash content (0.80%) and lignin content (17.30%). While Clone RRIM2024 has greater value of holocellulose content (58.58%) and alpha-cellulose content (41.41%). According to the different height levels, top portion exhibited highest lignin content (17.64% for RRIM2009 and 16.75% for RRIM2024). While bottom portion exhibited highest holocellulose (58.93% for RRIM2009 and 60.56% for RRIM2024), highest alpha-cellulose (39.75% for RRIM2009 and 43.02% for RRIM2024) and highest ash content (0.85% for RRIM2009 and 0.71% for RRIM2024). As a whole, clone RRIM2024 gave higher value except for lignin and ash content compared to RRIM2009. Thus, the potential of using such LTC rubberwood trees for specific purposes is promising.

Keywords: latex timber clone, juvenile rubberwood, chemical properties, wood behavior

 

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