Protection of beech veneer for fruit and vegetable boxes
In Yugoslavia about 50,000 m³ of low quality beech logs annually are rotary cut into veneer from which boxes are made for transporting fruit and vegetables. Because of steaming before rotary cutting, beech veneer becomes extremely sensitive to mould attack which decreases the quality and commercial value of the final product. To avoid mould attack, veneer sheets are dried to 16% moisture content immediately after cutting. However, during transportation or cold storage of fruit, veneers or ready-made boxes can become rewetted and the mould problem can appear again. Some research work to determine suitable and non-tainting chemicals to prevent mould attack on veneers and boxes is described in this paper.