Preservation Food 73 Wood 26 Food industry and trade 11 Packaging 11 Safety measures 10 Standards 9 Fruit 8 Meat 8 Microbiology 8 Water 8 Wood preservatives 8 standards 8 Effect of heat on 7 Paper 7 Processed foods 7 Canning and preserving 6 Cellulose 6 Vegetables 6 chemistry 6 Industrial applications 5 Packing 5 Research 5 Food containers 4 Lumber 4 Purification 4 Storage 4 Water quality 4 Consumer goods 3 Electric fields 3