| http://www.w3.org/ns/prov#value | - Suitable polysaccharides for the implementation of the invention are starch or starch derivatives such as starch phosphate, starch succinate, aminoalkyl starch or hydroxypropyl starch; cellulose or cellulose derivatives as carboxymethyl cellulose, methyl cellulose, ethyl cellulose or hydroxypropylmethyl cellulose; chitin or chitin derivatives such as the chitosan or chitosan derivatives such as th
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