The bamboo scrimber has been widely used in building materials and interior decoration. However, the bamboo scrimber is very vulnerable to mold due to the rich nutrients in bamboo parenchyma cells. In this study, a thermal treatment with saturated vapor was employed to improve the mold-proof property of bamboo scrimber. Four kinds of mold (Botryodiplodia theobromae, Aspergillus niger, Penicillium citrinum, Trichoderma viride) were respectively used to infect the original bamboo scrimber (OBS) and thermally treated bamboo scrimber (TBS). The TBS presents better mold-proof property than the OBS, especially to T. viride. After 28-day infection, the TBSs infected area ratio reached 10.3 % with a remarkable decline compared with the OBS (45 %). In addition, no obvious discoloration was observed on the TBS after infection by B. theobromae. The obtained results show that the degradation of hemicellulose in bamboo bundles during thermal treatment mainly contributes to the enhancement of mold-proof property. The TBSs enhanced hydrophobicity also takes responsibility for slowing down the growth of mycelium. This study exhibits a simple, green and cost-effective method to effectively improve the mold-proof property for the bamboo scrimber without any extra mold inhibitors.

竹刮刀已广泛用于建材和室内装饰。但是，由于竹薄壁组织细胞中的营养丰富，所以竹很容易发霉。在这项研究中，采用饱和蒸汽热处理可以改善竹bamboo的防霉性能。分别用四种霉菌（Botryodiplodia theobromae，黑曲霉，柠檬青霉，vichoderma viride）感染原始竹（OBS）和热处理竹（TBS）。TBS具有比OBS更好的防霉性能，尤其是对于T. viride。感染28天后，TBS的感染面积比率达到10.3％，与OBS（45％）相比显着下降。另外，被在TBS通过观察感染后没有明显的变色B. theobromae。所得结果表明，热处理过程中竹束中半纤维素的降解主要有助于提高防霉性。TBS疏水性增强还负责减缓菌丝体的生长。这项研究展示了一种简单，绿色且经济高效的方法，可以有效地改善竹的防霉性能，而无需使用任何额外的防霉剂。