Sweetener and flavor compositions with improved taste profiles are disclosed. Also disclosed are methods of making and methods of using such sweetener and flavor compositions.

The purpose of the present invention is to provide a protein, said protein having an activity of synthesizing rhamnose from glucose, and a polynucleotide encoding the same. Provided are a rhamnose synthase derived from stevia and a method for producing rhamnose from glucose using a gene. Also provided is a method for producing a steviol glycoside using the rhamnose synthase derived from stevia.

The present invention provides a novel organic acid glycoside existing in coffee beans and a use thereof. ##STR00001##
wherein, each of R.sup.1 to R.sup.7 is independently selected from a group consisting of H, OH, NH.sub.2, OCH.sub.3, OC(O)CH.sub.3, and NHCOCH.sub.3;
A is selected from C.sub.1 to C.sub.6 alkyl or C.sub.1 to C.sub.6 alkenyl, and the C.sub.1 to C.sub.6 alkyl or C.sub.1 to C.sub.6 alkenyl may be substituted by methyl or ethyl.

Sweetener and flavor compositions with improved taste profiles are disclosed. Also disclosed are methods of making and methods of using such sweetener and flavor compositions.

The invention describes products, uses thereof, compositions thereof, and methods to prepare products formed from Maillard reaction products from a sugar donor and/or sweet tea extracts, stevia extracts, swingle (mogroside) extracts, one or more sweet tea extract components, one or more steviol glycosides, one or more mogrosides, one or more glycosylated sweet tea glycosides, one or more glycosylated steviol glycosides or one or more glycosylated mogrosides and an amine donor/reactant.

Sweetener and flavor compositions with improved taste profiles are disclosed. Also disclosed are methods of making and methods of using such sweetener and flavor compositions.

Sweetener and flavor compositions with improved taste profiles are disclosed. Also disclosed are methods of making and methods of using such sweetener and flavor compositions.

Sweetener and flavor compositions with improved taste profiles are disclosed. Also disclosed are methods of making and methods of using such sweetener and flavor compositions.

Sweetener and flavor compositions with improved taste profiles are disclosed. Also disclosed are methods of making and methods of using such sweetener and flavor compositions.

A Lucuma nervosa essence, a Lucuma nervosa aroma enhancer, a preparation method and applications thereof are disclosed. The Lucuma nervosa aroma enhancer includes methyl 3,7-dimethyl-6-octenoate and/or 3-(methylthio)propyl butyrate. A mass percentage of the Lucuma nervosa aroma enhancer in a Lucuma nervosa essence is 0.08%-1.1%, the Lucuma nervosa essence includes a substrate and the Lucuma nervosa aroma enhancer. The preparation method of the Lucuma nervosa essence includes mixing the components of the Lucuma nervosa essence. The Lucuma nervosa essence can be applied in preparing a food and/or a flavoring with a Lucuma nervosa flavor. When the Lucuma nervosa aroma enhancer provided by the present invention is used in combination with a Lucuma nervosa extract, or mixed with a composition in conjunction with other essence raw materials, the prepared Lucuma nervosa essence has full fruity aroma and strong sulfide aroma, thus effectively improving the aroma and taste of final products.