Departamento de Ecología, Genética y Evolución, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires, Argentina
Biodegradation. 2010 Sep;21(5):753-60. doi: 10.1007/s10532-010-9340-5. Epub 2010 Feb 27.
The natural durability of four Argentinean species of Prosopis and one of Acacia was evaluated in laboratory tests, according to European standards, using three brown rot and one white rot fungi. These tests were complemented by assessing the wood chemical composition. All the species were from moderately slightly durable to very durable (classes 4-1), and in all cases the heartwood was the most resistant to fungal attack. Chemical extractives content (organic, aqueous, tannic and phenolic) was higher in the heartwood. However, species durability was not related to extractive contents nor with wood density. Instead, it is possible that extractives could contribute to natural durability in different ways, including the effects related to the antioxidant properties of some of them.
根据欧洲标准,使用三种褐腐菌和一种白腐菌,对四种阿根廷的普罗斯皮奥属物种和一种金合欢属物种的天然耐久性进行了实验室评估。这些测试通过评估木材的化学组成得到了补充。所有物种均属于中到高度耐用(4-1 类),在所有情况下,心材的抗真菌侵蚀能力最强。心材中的化学抽出物含量(有机、水、单宁和酚类)较高。然而,物种的耐久性与抽出物含量或木材密度无关。相反,抽出物可能以不同的方式有助于天然耐久性,包括与一些抗氧化特性相关的影响。