芦丁及芦丁金属配合物对木材霉菌的抑菌性初探

为探究新型木材防霉剂,采用抑菌圈法、载片观察法及木材防霉试验,探究芦丁及芦丁不同金属配合物对黑曲霉的抑菌效果。结果表明,芦丁-锰、芦丁-镁、芦丁-锌可以减少黑曲霉的菌丝数量,影响孢子的产生和成熟,对黑曲霉具有明显的抑制作用;芦丁、芦丁-铜、芦丁-铁可以影响黑曲霉的菌丝生长,但是对孢子的产生和成熟的影响较小,对黑曲霉的抑制作用不明显。浓度为1.6mg·mL-1的芦丁-锰、芦丁-镁、芦丁-锌浸注处理毛白杨的侵染值分别为0.67、1.33和1.50;芦丁、芦丁-铜、芦丁-铁浸注处理毛白杨的侵染值分别为2.33、2.50和3.33。芦丁-锰、芦丁-镁、芦丁-锌对黑曲霉具有较好的抑制效果,可用于制备木材防霉剂。本试验结果为芦丁金属配合物制备环保型木材防霉剂提供一定的理论依据。

Mold Resistant Activities of Rutin and Rutin Metal Complexes

In order to explore the new wood preservatives,a series of rutin-metal complexes were prepared,and their mold resistant activities on Aspergillus niger were examined by inhibition zone method,slide observation method and wood mold resistance test.The results evidenced that rutin-Mn,rutin-Mg and rutin-Zn could reduce the number of mycelia,affect the production and maturation of spores,resulting in significant inhibition effect on A.niger .While rutin,rutin-Fe and rutin-Cu could affect the mycelium growth of A.niger ,but the effects on spore production and maturation were little,showing insignificant control result.The infection values were 0.67,1.33 and 1.50,respectively when the poplar timbers were treated with rutin-Mn,rutin-Mg and rutin-Zn at the concentration of 1.6 mg/mL.With rutin,rutin-Cu and rutin-Fe at the same concentration,the values were 2.33,2.50 and 3.33,respectively,indicating that the complexes of rutin with manganese,magnesium and zinc were better than copper and iron,as well as rutin alone,which could be developed as potential wood preservatives.The experimental results would provide a theoretical basis for the preparation of environment-friendly wood mold inhibitor with rutin metal complexes.