Wood packaging materials (WPMs) are widely used for collecting, storing and trading a wide range of products, including fresh fruit, vegetables and grains. The occurrence of moulds on WPMs used in the food industry must be avoided at every stage of the supply chain. This study aimed at (1) characterising fungal mould populations developing on fresh boards of hardwoods (European beech and poplar) and softwoods (Norway spruce and eastern white pine) commonly used by the packaging industry, and (2) assessing the effectiveness of two new molecules approved to come in contact with food, potassium sorbate and copper-8-quinolinolate, against mould growth and sporulation. A total of 322 fungal isolates belonging to 182 putatively different morphotypes were obtained. Spruce and beech boards were found to harbour a higher number of putatively different morphotypes compared to poplar and pine. The spectrum of fungi mostly included Ascomycota and the most abundant taxa were Trichoderma spp. and Penicillium spp. The effectiveness of the two new molecules (potassium sorbate approved for the use in both Europe and USA, and copper-8-quinolinolate approved for the use in USA only) was assessed on treated test pieces by inoculating conidial suspensions combining the three most common fungal species for each wooden material. Both preservatives showed comparable effectiveness and significantly reduced (P < 0.05) mould mycelial growth and sporulation on all the tested wooden materials compared to untreated controls, representing a suitable option for the control of moulds on WPMs.

木质包装材料（WPM）被广泛用于收集，储存和交易各种产品，包括新鲜水果，蔬菜和谷物。必须避免在供应链的每个阶段都在食品工业中使用WPM上的霉菌。这项研究旨在（1）表征包装行业常用的新鲜硬木（欧洲山毛榉和杨树）和软木（挪威云杉和东部白松）上的真菌霉菌种群，以及（2）评估两种新真菌的有效性。允许与食物，山梨酸钾和8-喹啉铜接触的分子，可防止霉菌生长和孢子形成。总共获得了322种真菌分离株，分别属于182种不同的形态型。与杨树和松树相比，发现云杉和山毛榉板具有更多的推定不同形态。真菌谱主要包括子囊菌和最丰富的分类单元是木霉属。和青霉菌属。通过接种结合了三种最常见真菌的分生孢子悬浮液，在处理过的试件上评估了这两种新分子的有效性（已批准在欧洲和美国使用的山梨酸钾，以及仅批准在美国使用的山梨酸8-喹啉铜）。每种木制材料的种类。与未处理的对照相比，两种防腐剂均显示出可比的效力，并且在所有测试的木质材料上霉菌菌丝体的生长和孢子形成均显着降低（P <0.05），代表了在WPM上控制霉菌的合适选择。