Kartal S N, Imamura Y, Tsuchiya F, Ohsato K
Forestry Faculty, Istanbul University, Bahcekoy, 80895, Turkey.
Bioresour Technol. 2004 Oct;95(1):41-7. doi: 10.1016/j.biortech.2004.02.005.
Biomass slurry fuel (BSF) production has recently been developed as a natural energy for the conversion of solid biomass into fuel. In addition to using fuel, filtrates from BSF production may also serve a chemical source with several organic compounds. There is an increasing interest in the research and application of biomass-based filtrates. In this study, fungicidal and termiticidal properties of filtrates from BSF production using sugi (Cryptomeria japonica) and acacia (Acacia mangium) wood were evaluated in laboratory decay and termite resistance tests. Wood blocks treated with the filtrates showed increased resistance against brown-rot fungus, Fomitopsis palustris. However the filtrates from sugi wood processed at 270 degrees C which contained less phenolic compounds than the other filtrates were effective against white-rot fungus, Trametes versicolor. Phenolic compounds of filtrates seemed to play a role in the decay resistance tests however the filtrates did not increase the durability of the wood blocks against subterranean termites Coptotermes formosanus. Despite high acetic and lactic acid content of the filtrates, vanillin content of the filtrates may have served as an additional food source and promoted termite attack. It can be concluded that filtrates with phenolic compounds from lignin degradation during BSF production can be considered for targeted inhibition of brown-rot.
生物质浆体燃料（BSF）生产近来已发展成为一种将固体生物质转化为燃料的天然能源。除了用作燃料外，BSF生产过程中的滤液还可作为含有多种有机化合物的化学源。人们对基于生物质的滤液的研究和应用兴趣日增。在本研究中，通过实验室腐朽和白蚁抗性试验，评估了使用日本柳杉（Cryptomeria japonica）和马占相思（Acacia mangium）木材生产的BSF滤液的杀真菌和杀白蚁特性。用滤液处理过的木块对褐腐菌拟层孔菌（Fomitopsis palustris）的抗性增强。然而，在270摄氏度下处理的日本柳杉木材滤液中酚类化合物含量低于其他滤液，却对白腐菌云芝（Trametes versicolor）有效。滤液中的酚类化合物似乎在抗腐朽试验中发挥了作用，不过滤液并未提高木块对地下白蚁台湾乳白蚁（Coptotermes formosanus）的耐久性。尽管滤液中乙酸和乳酸含量较高，但滤液中的香草醛含量可能充当了额外的食物来源并促进了白蚁的侵害。可以得出结论，BSF生产过程中木质素降解产生的含酚类化合物的滤液可考虑用于针对性抑制褐腐菌。
