[ Chemicals for industrial purposes; chemical preparations for use in industry; chemical products for stabilizing foodstuffs; ] chemicals for fermenting wine; chemical preparations for preserving foodstuffs; products for the clarification of wines, musts and juices, namely, protein and food gelatins each in the nature of chemicals for use in industry; chemicals for use in the beverage and oenology industry; chemicals for the treatment of wines, musts and juices, namely, protein and food gelatins