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Preparation method of meratia praecox extract for improving aroma and application thereof

An extraction and extraction technology, which is applied in the field of enzymatic treatment of wintersweet extracts and wintersweet spices, can solve the problems of significant improvement of aroma, limitation of absolute amount of free aroma components, difficulty in extracting aroma, etc., and achieve good sensory evaluation effect

Inactive Publication Date: 2012-02-08
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yet owing to use conventional wintersweet as the raw material that obtains fragrance, the absolute amount of free fragrance component is restricted, can not expect fragrance to improve significantly, therefore may not be able to meet needs
Studies have shown that the fragrance groups of some fragrance substances in natural plant flavors are often easily combined with other components in plant cells, such as low-molecular sugars, in a chemically bonded form, thereby inhibiting the emission of fragrance and making it difficult to was extracted

Method used

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  • Preparation method of meratia praecox extract for improving aroma and application thereof
  • Preparation method of meratia praecox extract for improving aroma and application thereof
  • Preparation method of meratia praecox extract for improving aroma and application thereof

Examples

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Effect test

Embodiment 1

[0021] Add 800 mL of 0.2mol / L disodium hydrogen phosphate-0.1mol / L citric acid buffer solution of pH 6 to 100 g of wintersweet flowers, heat up to 80°C for sterilization, cool to 40°C, and add 0.5U β -Glucosidase (manufactured by Sigma Co.), placed in an air bath constant temperature oscillator for 4 hours for enzymolysis at 37°C, filtered and separated the wintersweet and the wintersweet extract to obtain 820 g of the wintersweet extract.

Embodiment 2

[0051] Add 250 g of wintersweet extract from Example 1 to a 500 mL three-necked bottle, feed water vapor, and carry out steam distillation. The water vapor containing aroma components is condensed in a condenser tube connected at the side to obtain 50 g of Aqueous solution of aroma components.

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Abstract

The invention discloses a preparation method of meratia praecox extract for improving aroma and application thereof, and belongs to the technical field of perfume preparation. The method comprises the following steps of: adding meratia praecox fresh flower into disodium hydrogen phosphate-nitric acid buffer solution; sterilizing; cooling; adding glucoside lytic enzyme; placing in a vapor bathing constant temperature vibrator for enzymolysis; heating to deactivate enzyme; cooling; separating meratia praecox through centrifugal separation or filtration to obtain clear meratia praecox extract; then concentrating the clear meratia praecox extract under reduced pressure, concentrating the clear meratia praecox extract through a reverse osmosis membrane or performing freezing concentration to obtain meratia praecox raw material concentrate; or treating the clear meratia praecox extract through a steam distillation method, a solvent extraction method, a membrane concentration method, a resin adsorption method, a supercritical extraction method or a reduced pressure concentration method to prepare the meratia praecox extract. The meratia praecox extract, meratia praecox raw material concentrate or aroma concentrate product prepared by the method has sufficient and strong flower aroma; and both intensity and richness of the aroma exceed those of the conventional product.

Description

technical field [0001] The invention relates to a preparation method and application of an aroma-improving wintersweet extract, in particular to an enzyme treatment method for an aroma-improving wintersweet extract and wintersweet spice, which belongs to the technical field of spice preparation. Background technique [0002] Wintersweet is a famous traditional garden flower in my country. Its fragrance is elegant and fragrant, and it also has many pharmacological functions. Wintersweet flower essential oil has a cold and clear aroma, overflowing and sweet, and is a high-grade natural floral raw material. [0003] Scientists from Japan and other countries have compared the components of wintersweet essential oil with rose and jasmine essential oils. The results show that the identified components of wintersweet essential oil are higher than those of rose essential oil and jasmine essential oil, which fully demonstrates the utilization potential of wintersweet essence. Howeve...

Claims

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Application Information

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IPC IPC(8): C11B9/00A61K8/97A61Q19/00A23L1/221A23L27/10
Inventor 李明曹光群孙培冬杨成
Owner JIANGNAN UNIV
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