Abstract: Described are mixtures of cis and trans isomers of 2-[(methylthio)methyl]-3-phenyl-2-propenal having the structures: ##STR1## The ratio of cis to trans isomer being from 7:3 up to 9.5:0.5 wherein augmenting and enhancing the flavors and aroma of meat extract, meat, hydrolyzed vegetable protein, nut and chocolate flavored foodstuff by augmenting or enhancing the sweet, meat extract like, hydrolyzed vegetable protein like and beef broth like aroma and sweet, meat extract like, hydrolyzed vegetable protein like, beef broth like, and monosodium glutamate like flavor characteristics with mouthfeel effects.

Abstract: Processes and compositions are described for use in foodstuff flavors and as foodstuff article aroma and taste augmenting and enhancing materials of at least one alpha-substituted alkylidene methionals having the structure: ##STR1## wherein R.sub.1 or R.sub.2 is one of the moieties: ##STR2## AND THE OTHER IS HYDROGEN OR METHYL. Addition of one or more alpha-substituted alkylidene methionals to foodstuff flavorings or to foodstuffs is indicated to produce the following aroma and flavor characteristics, in the alternative taken together:AromaPotato;Methional-like;Green;Hydrolyzed vegetable protein-like;Chicken-like;Cabbage;Green potato;Green weedy;Broccoli-like; andGreen bean-like.FlavorPotato;Metallic;Sulfury-green;Cabbage-like;Chicken;Mushroom-like;Greeen-weedy;Broccoli-like; andGreen bean-like.The compounds of our invention are useful in augmenting or enhancing the flavor and aroma nuances of vegetable (including potato and cabbage) and chicken flavors.

Abstract: Processes and compositions are described for the use in foodstuff, chewing gum, toothpaste and medicinal product flavor and aroma and tobacco flavor and aroma augmenting, modifying, enhancing and imparting compositions and as foodstuff, chewing gum, toothpaste, medicinal product and tobacco aroma and flavor imparting, augmenting, modifying and enhancing materials of one or more 5-acyl-2-(furfurylthio)dihydro-2,5-dialkyl-3-?2H!furanones having the generic structure: ##STR1## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ' and R.sub.4 ' are each the same or different and each represents hydrogen or methyl produced according to the process of reacting one or more alpha, beta diketones containing from 4 up to 6 carbon atoms and having the generic structure: ##STR2## or one or more dimerization products thereof having the generic structure: ##STR3## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ', R.sub.4 ', R.sub.5 ' and R.sub.

Abstract: Processes and compositions are described for the use in foodstuff, chewing gum, toothpaste and medicinal product flavor and aroma and tobacco flavor and aroma augmenting, modifying, enhancing and imparting compositions and as foodstuff, chewing gum, toothpaste, medicinal product and tobacco aroma and flavor imparting, augmenting, modifying and enhancing materials of one or more 5-acyl-2-(furfurylthio)dihydro-2,5-dialkyl-3-[2H]furanones having the generic structure: ##STR1## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ' and R.sub.4 ' are each the same or different and each represents hydrogen or methyl produced according to the process of reacting one or more alpha, beta diketones containing from 4 up to 6 carbon atoms and having the generic structure: ##STR2## or one or more dimerization products thereof having the generic structure: ##STR3## wherein R.sub.1 ', R.sub.2 ', R.sub.3 ', R.sub.4 ', R.sub.5 ' and R.sub.