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Oxidization and degradation composite catalyst and use thereof in preparation of spice from carotenoid

A technology of composite catalysts and oxidation catalysts, applied in physical/chemical process catalysts, essential oils/fragrances, chemical instruments and methods, etc., can solve problems such as difficult industrialization, high reaction temperature, and complex oxidation degradation equipment

Inactive Publication Date: 2010-09-01
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the shortcomings of complex oxidative degradation equipment for carotenoids in the prior art, high reaction temperature, and difficulty in industrialization, the present invention provides a composite catalyst for oxidative degradation and its application in the preparation of spices from carotenoids, which can make carotenoids Synchronous Oxidative Degradation Reaction at Lower Temperature to Prepare Multi-component Perfume with Simple Device

Method used

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  • Oxidization and degradation composite catalyst and use thereof in preparation of spice from carotenoid
  • Oxidization and degradation composite catalyst and use thereof in preparation of spice from carotenoid
  • Oxidization and degradation composite catalyst and use thereof in preparation of spice from carotenoid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Weigh 4.1g β-carotene, 42mg oxidative degradation composite catalyst, where the oxidative degradation composite catalyst is compounded by MgO and kaolin in a ratio of 1:1 by mass, and 43.2g silicone oil, and put them into a 100mL four-necked flask Among them, the silicone oil here can also be replaced by methyl silicone oil, dimethyl silicone oil or phenyl silicone oil, and the effect is the same. The four ports of the reaction bottle are respectively installed with nitrogen inlet pipe, air inlet pipe, thermometer, distillation head, connected to the condenser pipe and tail pipe, and about 30mL of absorption liquid is added to the 100mL round-bottomed flask, connected to the tail pipe and placed in a low-temperature constant temperature reaction bath , connect the outlet of the tailpipe to the buffer bottle, and fill a small amount of silicone oil in the bottle. Turn on the air and nitrogen, respectively check whether the gas path is smooth through the buffer bottle, an...

Embodiment 2、3

[0041] Embodiments 2 and 3 are carried out on the basis of Example 1, after changing the type of the oxidative degradation composite catalyst, the total amount of the oxidative degradation composite catalyst, the ratio between the oxidation catalyst and the degradation catalyst, the specific operation method, etc. 1, the details of the added oxidative degradation composite catalyst and the specific results of the main product mass fraction (%) are compared in Table 2. Wherein the oxidation catalyst is a metal salt oxidation catalyst.

[0042] Catalyst use and result comparison in table 2 embodiment 1~7

[0043]

[0044]

[0045] Note: 1#~7# represent several main components in the product, according to GC retention time (R t ) gradually increasing sequence is: 1#: R t 3.94min, acetol; 2#: R t 6.70min, 2,2-dimethylcyclopentanone; 3#: R t 25.28min, 2,6,6-trimethyl-1-cyclohexene-1-carbaldehyde (β-cyclocitral); 4#: R t 27.64min, 1,4,8-trimethyl-1,7-nonadien-4-ol; 5#...

Embodiment 4～7

[0049] Embodiment 4~7 is on the basis of embodiment 1, the implementation result after changing the mass ratio between oxidation catalyst and degradation catalyst in the oxidative degradation composite catalyst, all the other are the same as embodiment 1, and specific operation method is also the same as embodiment 1, the details of the added catalyst and the specific results of the product are compared in Table 3.

[0050] Catalyst use and result comparison in table 3 embodiment 1, 4~7

[0051]

[0052] Note: 1#~7# represent several main components in the product, and the meanings are the same as those in Table 2.

[0053] As can be seen from the results in Table 3, changing the compounding ratio of the composite catalyst has no effect on the types of main components in the product. Alcohols, ketones, esters, and olefins account for about 60% of the total product mass, but the difference between the components The ratio varies with different catalyst compounding r...

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Abstract

The invention discloses an oxidization and degradation composite catalyst and the use thereof in the preparation of a spice from carotenoid, which is the divisional application of the Chinese invention patent application of which the application number is 20810155733.7. The oxidization and degradation composite catalyst is prepared from a metal salt oxidization catalyst and a natural mineral degradation catalyst in a mass ratio of 1:99 to 99:1, wherein the metal salt oxidization catalyst may be one or two, which are mixed in any ratio, of Na2CO3 and CaCO3; and the natural mineral degradation catalyst may be one or several, which are mixed in any ratio, of atlapulgite, kieselguhr and kaolin. The use of the composite catalyst in the preparation of the spice from the carotenoid comprises the following steps of: adding the carotenoid and the oxidization and degradation composite catalyst the amount of which is 0.1 to 10 percent based on the mass of the carotenoid into an inert medium together; and allowing the materials to react at 100 to 200 DEG C for 3 to 24 hours to obtain a multi-component oxidization and degradation product which can be used as the spice. The inert medium may be silicone oil, methyl silicone oil, dimethyl silicone oil or phenyl silicone oil.

Description

[0001] The present invention is a divisional application of a Chinese invention patent application with the application number 200810155733.7 and the application date of October 14, 2008, and the name is an oxidative degradation composite catalyst and its application in the preparation of perfumes from carotenoids. Technical field: [0002] The invention relates to a composite catalyst, in particular to an oxidative degradation composite catalyst used in the reaction of oxidative degradation of carotenoids to prepare spices. Background technique: [0003] Carotenoids mainly include carotene, lutein, lycopene and so on. Carotene is a class of tetraterpenoids with various isomers, such as α-carotene, β-carotene, γ-carotene and so on. Beta-carotene is the most common form of carotene products. Carotene performs the physiological function of vitamin A in the body and can be converted into vitamin A, known as provitamin A. α-, β- and γ-carotene often coexist in many plants, of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/232B01J21/16C11B9/00
Inventor 赵振东张杰王婧李冬梅毕良武古研
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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