<p>1458795 Protecting organic materials NESTLE SA 24 Feb 1975 [8 April 1974] 7602/75 Heading A2D A process for protecting an organic material against bacterial attack by the addition of a baoteriostatic agent comprises using as said bacteriostatic agent an extract obtained from unroasted coffee. The extract may be obtained by acid-base extraction of the decaffeinated residues of unroasted coffee. The organic material is preferably a food-grade material. The protection of skimmed milk is exemplified.</p>