Citation
Lee S. H. Putra Malaysia Univ., . and H`ng P. S., . and Ahmad S. S., . (2009) Effectiveness of pyroligneous acid pyrolized from lignocellulosic materials against mold fungi and termites. [Proceedings Paper]
Abstract
Pyroligneous acid pyrolized from lignocellulosic materials was found to have potential use as a biopreservative. It is a byproduct produced from low temperature carbonization of waste materials and biomass. The actual usage of this pyroligneous acid is to produce acetic acid wood tar and methanol. Recovery of chemicals from the vapours given off when wood is converted to charcoal was once a flourishing industry. However as soon as petrochemicals appeared on the scene wood as a source of methanol acetic acid specialty tars and preservatives became uneconomical. Nevertheless there is now a renewed interest with the surge in petrol price in recent years. This study focused on the development of pyroligneous acid as a biopreservative against wood biodegradation agents. Pyroligneous acid was derived from Rhizophora and bamboo at 300-400 C. Rubberwood was used as test samples. Mold resistance test was carried out using Penicillium sp. Decay resistance was tested using cultures of common white-rot fungus Pycnoporous sanguineus and termite resistance test was carried out using the subterranean termite Coptotermes curvignathus. Pyroligneous acid-treated test blocks were effective against mold for the surface coverage area and white-rot decay in the weight loss but not effective against termiticidal activity. Conclusively pyroligneous acid can be used as a fungicide but not an insecticide.
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Abstract
Pyroligneous acid pyrolized from lignocellulosic materials was found to have potential use as a biopreservative. It is a byproduct produced from low temperature carbonization of waste materials and biomass. The actual usage of this pyroligneous acid is to produce acetic acid wood tar and methanol. Recovery of chemicals from the vapours given off when wood is converted to charcoal was once a flourishing industry. However as soon as petrochemicals appeared on the scene wood as a source of methanol acetic acid specialty tars and preservatives became uneconomical. Nevertheless there is now a renewed interest with the surge in petrol price in recent years. This study focused on the development of pyroligneous acid as a biopreservative against wood biodegradation agents. Pyroligneous acid was derived from Rhizophora and bamboo at 300-400 C. Rubberwood was used as test samples. Mold resistance test was carried out using Penicillium sp. Decay resistance was tested using cultures of common white-rot fungus Pycnoporous sanguineus and termite resistance test was carried out using the subterranean termite Coptotermes curvignathus. Pyroligneous acid-treated test blocks were effective against mold for the surface coverage area and white-rot decay in the weight loss but not effective against termiticidal activity. Conclusively pyroligneous acid can be used as a fungicide but not an insecticide.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | 4 table |
| AGROVOC Term: | Lignocellulose |
| AGROVOC Term: | Pyrolysis |
| AGROVOC Term: | Biomass |
| AGROVOC Term: | Molds |
| AGROVOC Term: | Fungi |
| AGROVOC Term: | Termites |
| AGROVOC Term: | Bamboos |
| AGROVOC Term: | Mangrove plants |
| AGROVOC Term: | Biodegradation |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/11447 |
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