CHANGES IN EXTRACTIVE CONTENT ON WOOD SURFACES OF CHENGAL (NEOBALANOCARPUS  HEIMII) AND EFFECTS ON PERFORMANCE

S Suryani; MN Ahmad; MD Hale; HPS AbdulKhalil

CHANGES IN EXTRACTIVE CONTENT ON WOOD SURFACES OF CHENGAL (NEOBALANOCARPUS HEIMII) AND EFFECTS ON PERFORMANCE

Authors

S Suryani
MN Ahmad
MD Hale
HPS AbdulKhalil

Keywords:

Extraction process, weathering, deterioration, density profile, holocellulose, lignin

Abstract

AHMAD MN, HALE MD, ABDUL KHALIL HPS & SURYANI S. 2013. Changes in extractive content on wood surfaces of chengal (Neobalanocarpus heimii) and effects on performance. Chemical composition of decayed surface samples from a dense, durable hardwood from building material partially exposed to weather for 50 years was investigated at various depths within the samples. Results showed that total extractive contents within the surface regions were much higher compared with the inner part. Fourier transform infrared spectra (FTIR) and HPLC studies showed that the composition of extractives varied and was unevenly distributed
at different depths. However, holocellulose and lignin contents were 58 and 28% at the surface zone and increased deeper within the sample to 67 and 34% respectively.

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Published

15-07-2013

Issue

Vol. 25 No. 3 (2013)

Section

Articles

How to Cite

CHANGES IN EXTRACTIVE CONTENT ON WOOD SURFACES OF CHENGAL (NEOBALANOCARPUS HEIMII) AND EFFECTS ON PERFORMANCE. (2013). JOURNAL OF TROPICAL FOREST SCIENCE, 25(3), 278-288. https://jtfs.frim.gov.my/jtfs/article/view/398