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CN-121991760-A - Preparation method of mint essence

CN121991760ACN 121991760 ACN121991760 ACN 121991760ACN-121991760-A

Abstract

The invention relates to a preparation method of mint essence, which adopts a multilayer microcapsule slow release technology and a nanocapsule technology, and solves the problems of rapid volatilization and poor durability of the traditional mint essence by optimizing the combination of essence components and slow release carriers. According to the method, essence components such as menthol, menthone and isovalerate are mixed with at least two layers of microcapsules, the outer layer microcapsules slowly release aroma, the inner layer microcapsules release aroma rapidly, and the aroma is ensured to be kept for a long time in the using process. Meanwhile, the invention adopts the nanocapsule technology, and the essence is uniformly dispersed in different carrier systems by ultrasonic auxiliary emulsification, so that the stability and the dispersibility of the essence are improved. In addition, the introduction of the temperature-responsive and pH-responsive polymer materials enables the release rate of the essence to be adjusted according to the external environment, and the adaptability of the essence is further enhanced.

Inventors

  • JIANG JINGUO

Assignees

  • 广州市珍馨香精香料有限公司

Dates

Publication Date
20260508
Application Date
20260206

Claims (9)

  1. 1. A method for preparing mint essence, which is characterized by comprising the following steps: providing menthol, menthone, isovalerate and other mint essence components, and mixing according to a preset proportion; Mixing the mint essence component with a multi-layer slow release carrier, wherein the slow release carrier comprises at least two layers of microcapsules, the release rate of the outer layer microcapsules is slow, the release rate of the inner layer microcapsules is fast, the inner layer microcapsules release fragrance rapidly at the initial stage of use, and the outer layer microcapsules release fragrance slowly for a long time.
  2. 2. The method of preparing peppermint essence according to claim 1, wherein the outer microcapsules are made of chitosan or derivatives thereof, the inner microcapsules are made of polyvinyl alcohol (PVA) or gelatin, and the microcapsules are prepared by spray drying or freeze drying.
  3. 3. The method for preparing mint essence according to claim 1, wherein the slow release carrier is a nanocapsule, the particle size of the nanocapsule is 50-200 nanometers, the nanocapsule is composed of a hydrophilic polymer material, and the polymer material is selected from chitosan, polyvinyl alcohol and polylactic acid.
  4. 4. The method for preparing mint essence according to claim 3, wherein the nanocapsules are prepared by ultrasonic assisted emulsification technology, the emulsification process adopts ultrasonic vibration frequency of 20-30kHz, and the treatment time is 5-10 minutes.
  5. 5. The preparation method of the mint essence according to claim 1, wherein the mint essence component comprises menthol, menthone and isovalerate=2.5:1:0.5 in mass ratio.
  6. 6. The method for preparing peppermint essence according to claim 1, wherein the outer microcapsules of the multilayered microcapsules have lower permeability, the volatilization of the fragrance is delayed mainly through the crosslinked structure of the chitosan material, the fragrance is ensured to be durable and stable, and the inner microcapsules have higher dissolution rate, and the fragrance is released rapidly in the initial stage through the solubility of the polyvinyl alcohol.
  7. 7. The method for preparing mint flavor according to claim 1, wherein the mixing temperature of flavor and carrier is controlled between 30 ℃ and 50 ℃.
  8. 8. The method for preparing mint essence according to claim 1, wherein the slow release carrier is a temperature-responsive or pH-responsive polymer material, which undergoes a phase transition when the temperature or pH changes, controlling the release rate of the essence.
  9. 9. The method of claim 8, wherein the temperature responsive polymer is poly (N-isopropyl acrylamide) (PNIPAM) having a transition temperature of 30-40 ℃, and wherein the pH responsive polymer is polymethacrylate suitable for controlling the release of flavoring in the pH range of 5.5-7.5.

Description

Preparation method of mint essence Technical Field The invention relates to the technical field of edible essence, in particular to a preparation method of mint essence. Background Mint essence is widely applied to the fields of food, daily chemicals, medicines and the like, and becomes an indispensable component in many products due to fresh aroma and cool feel. However, the existing preparation method of mint essence has certain limitations. Firstly, the traditional mint essence is easy to volatilize in the storage and use processes, so that the fragrance is released rapidly and is poor in durability, and the requirements of consumers on the durability and the stability of the fragrance cannot be met. Secondly, the essence in the prior art mostly adopts a single carrier system, lacks adaptability to different carrier systems (such as water-based, oily and the like), and has unstable performance in different products, thus influencing the quality of the final product. In addition, as the demands of consumers for natural and durable fragrances are continuously increased, the traditional mint essence preparation method gradually exposes the problems of high cost, strong volatility and great difficulty in fragrance release control. In the prior art, although the volatilization of the essence is delayed by adopting microcapsule technology and other means, the stability and the persistence of the fragrance in different use occasions are difficult to effectively solve, and particularly, the performance of the essence is often unstable in the changing environments of temperature, pH and the like, and the expected effect cannot be achieved. Therefore, how to design a mint essence preparation method which can be compatible with various carrier systems and improve the stability and durability of the essence becomes a technical problem to be solved in the current mint essence industry. Disclosure of Invention In order to solve the problems, the invention provides the preparation method of the mint essence, which can keep stability and durability in different carrier systems and can effectively prolong the aroma release time by adopting a multilayer microcapsule slow release technology, a nanocapsule encapsulation technology and temperature response and pH response carriers. In order to achieve the above object, the present invention provides the following technical solution, which mainly includes: A method for preparing mint essence, the method comprising the steps of: providing menthol, menthone, isovalerate and other mint essence components, and mixing according to a preset proportion; Mixing the mint essence component with a multi-layer slow release carrier, wherein the slow release carrier comprises at least two layers of microcapsules, the release rate of the outer layer microcapsules is slow, the release rate of the inner layer microcapsules is fast, the inner layer microcapsules release fragrance rapidly at the initial stage of use, and the outer layer microcapsules release fragrance slowly for a long time. In a particular embodiment, the outer microcapsules are made of chitosan or derivatives thereof, the inner microcapsules are made of polyvinyl alcohol (PVA) or gelatin, and the microcapsules are prepared by spray drying or freeze drying. In a specific embodiment, the slow release carrier is a nanocapsule, the particle size of the nanocapsule is 50-200 nanometers, the nanocapsule is composed of a hydrophilic polymer material, and the polymer material is selected from chitosan, polyvinyl alcohol and polylactic acid. In a specific embodiment, the nanocapsules are prepared by an ultrasonic assisted emulsification technology, wherein the emulsification process adopts ultrasonic vibration frequency of 20-30kHz and treatment time of 5-10 minutes. In a specific embodiment, the mint essence components are menthol, menthone and isovalerate in the mass ratio of 2.5:1:0.5. In a specific embodiment, the outer microcapsules of the multilayer microcapsules have lower permeability, the volatilization of the fragrance is delayed mainly through the crosslinked structure of the chitosan material, the fragrance is ensured to be durable and stable, and the inner microcapsules have higher dissolution rate, and the fragrance is released rapidly in the initial stage through the solubility of the polyvinyl alcohol. In a specific embodiment, the mixing temperature of the perfume and the carrier in the method is controlled between 30 ℃ and 50 ℃. In a specific embodiment, the slow release carrier adopts a temperature responsive or pH responsive polymer material, and the polymer material undergoes phase transition when the temperature or the pH changes, so as to control the release rate of the essence. In a specific embodiment, the temperature responsive polymer is poly (N-isopropyl acrylamide) (PNIPAM) with a transition temperature of 30 ℃ to 40 ℃, and the pH responsive polymer is polymethacrylate, which is suitable for controlling th