Pressure-sensitive adhesive compound comprising a polymer component and a saccharide component, wherein the saccharide component is formed from one or more monosaccharides, disaccharides, oligosaccharides, or polysaccharides, and/or one or more modified saccharide derivatives, which can be derived from monosaccharides, disaccharides, oligosaccharides or polysaccharides by modifying one, several, or all OH groups contained in the respective saccharide