Flavor is a kind of artificial blend containing more than two or even dozens ofspice(sometimes with appropriatesolventOr carrier), a mixture with a certain aroma[1]。
In order to have a specific aroma or fragrance type, you must go through the fragrance mixing process.PerfumingThat is, several or even dozens ofspice, according to a certain proportion to blend into a certain aroma or flavor type and a certain use of the process of blended spices, and this blended spice is called essence.
Flavors can be divided into daily flavor, edible flavor and other flavors according to their uses, as shown in Figure 1.
(2) According to fragrance or fragrance of essence:
Scented rose, sandalwood, jasmine, rose, grass, etc.
Three flower, bell flower, osmanthus and fruity type for cream.
Formaldehyde fragrance, flower fragrance, green fragrance, hundred flower fragrance, oriental fragrance, etc.
Orange, sweet orange, lemon, cream, vanilla, chocolate, almond, cola, etc.
Mint type, spearmint type, fruit type, holly type, etc. for toothpaste.
Green plum, rose, osmanthus, daqu, brandy, whisky, etc.
Flue cured tobacco, mixed tobacco, etc.
(3) According to solubility, it can be divided into water solubility (including alcohol solubility) and oil solubility.
(4) According to dosage form, it can be divided into liquid (including slurry and emulsion), solid (including powder and block) and other types.
Requirements for essence
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As an industrial product, essence has its quality specifications. Although the quality indicators of various manufacturers are different, the following properties are necessary.
(1) It has certain fragrance type, aroma or fragrance characteristics.
(2) There is a certain proportion and preparation process of spices (sometimes including carrier, auxiliary materials, solvents or other additives).
(3) It is safe for human body (for external use or internal use).
(4) Adapt to certain application requirements of flavoring (including suitable flavoring process conditions, price requirements, etc.).
(5) It should adapt to the performance and effectiveness of the flavoring medium, and maintain a certain stability and durability.
(6) It shall conform to the prescribed dosage form.
Evaluation of flavor
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As the works of art of a perfumer, essence has artistic attributes. There are different trends and schools in different periods.The responsibility of the perfumer is to prepare the best selling fragrance products that meet the customer's satisfaction and trends.This is not only a problem of formula technology, but also involves aesthetic, psychological and market economy factors.Before designing the flavor formula, the market and cosmetic formulators must collect enough information about its use and application.
Evaluation items of flavor evaluation
1. Identify the aroma characteristics of the reviewed samples, such as flavor, flavor type, intensity, diffusion, persistence and balance of aroma.
2. Evaluate its novelty, originality, style and charm from the perspective of psychology and aesthetics.
3. Assessment of internal quality, such as the ability of color, turbidity and fragrance to mask the odor of the substrate.
4. To check and evaluate the quality of flavor, it is mainly to understand its authenticity, advantages and disadvantages, and whether it is adulterated.
5. As the fragrance evaluation in the process of flavor research, it mainly sniffs and distinguishes its fragrance, head fragrance, body fragrance, base fragrance, coordination degree, aroma and color changes.
