Anatomical characterisation of wood decay patterns in Hevea brasiliensis and Pinus merkusii by white-rot fungi Polyporus arcularius and Pycnoporus sanguineus

• Main Author: Fatina Diandari, Alya
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/42437
• Institution: Institut Teknologi Bandung

Pulp and paper industry have been potentially growing in Indonesia due to the increasing demand of paper. The raw materials used for making pulp and paper mainly depend on wood materials from forest plantation industries and would be potentially developed to utilize another source of materials from community forest. However, the processing methods that were applied so far in the industry still use chemical processes that produce waste which give adverse environmental impact. One of the eco-friendly process is biological pulping for initial treatment of raw wood with selective delignification white-rot fungi. The aim of this study is to determine the decay patterns of Pycnoporus sanguineus and Polyporus arcularius on Hevea brasiliensis (as hardwood) and Pinus merkusii (as softwood) by observing the anatomical characteristics. Fungal attack testing on wood was carried out by Kolle-flask method with a variation of 6, 9, and 12 weeks incubation time. Analyzing the structure of wood cells were carried out using the wood incision method, followed by staining with combination of safranin-picro aniline blue and safranin-astra blue, and by maceration method. The result shows that Hevea brasiliensis wood has higher percentage of weight loss than Pinus merkusii wood. The tested wood that were attacked by Pycnoporus sanguineus showed higher weight loss compared to the Polyporus arcularius. The decay pattern of the Pycnoporus sanguineus in Pinus merkusii wood was determined into selective delignification, whereas in Hevea brasiliensis wood was categorized as simultaneous delignification. The decay pattern of Polyporus arcularius showed simultaneous delignification on both tested wood species.