Conjugated dienamides, methods of production thereof, compositions containing same and uses thereof

12 1 2 1 2 2nPiper Piper longum Piper peepuloidesDescribed are mixtures of at least four of the alkadienamides defined according to the structure: wherein R represents C-Cn-alkyl; Ris 2-methyl-1-propyl and Ris hydrogen, or Rand Rtaken together is a moiety having the formula -(CH)-, wherein n is 4 or 5, or compositions containing substantial concentrations of such mixtures, prepared according to novel processes: (a) extraction of a ground substantially dried fruit of one of the species, Linn or ; (b) natural product-forming synthesis; or (c) synthetic product-forming synthesis. Also described are uses of the thus-formed products for augmenting, enhancing or imparting an aroma, taste, chemesthetic effect and/or antibacterial effect in or to a consumable material and/or in the oral cavity and/or on the mammalian epidermis.