Abstract: Alcoholic beverages such as beer are preserved without pasteurization by mechanically removing microorganisms from the beverage and by carrying out the removing of microorganisms and all subsequent treatment of the beverage including bottling and sealing in a circuit free of air.

Abstract: Indolyl alkyl amines of the following formula: ##SPC1##And their salts with organic or inorganic acids. In this formula I, A and A.sup.1 denote identical or different alkyl radicals which both together have a total of 3-8 C-atoms. R.sup.1 denotes hydrogen, a lower alkyl radical having up to 4 C-atoms or a possibly substituted benzyl or benzoyl radical. R.sup.2 and R.sup.3 may be the same or different and denote hydrogen, a halogen (more particularly chlorine, bromine or fluorine) or (possibly halogenated) lower alkyl radicals or (possibly etherified) hydroxy radicals. R.sup.4 denotes hydrogen, a lower alkyl radical, an acyl group or a (possibly substituted) benzyl radical or the cyano-ethyl group. The compounds are useful as anoretics (appetite inhibitors) and can be made by various disclosed methods.