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Method for removing peculiar smell of Crucifer pigment extraction liquid

A technology of cruciferous and plant pigments, applied in chemical instruments and methods, semi-permeable membrane separation, azo dyes, etc., can solve the problem of cruciferous plant pigment extracts, high energy consumption and limited wide application and other issues, to achieve the effect of prolonging product storage period, shortening production cycle and low temperature

Active Publication Date: 2008-09-10
CHINA AGRI UNIV
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that the current cruciferous plant pigment extract has peculiar smell, which limits its wide application in the food industry, and the existing deodorization process has high energy consumption, long cycle and unsatisfactory effect, the present invention aims to provide a A new odor removal method for cruciferous plant pigment extracts, which is characterized by high efficiency, low energy consumption, high safety, and good odor removal effect

Method used

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Examples

Experimental program
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Embodiment Construction

[0016] Below in conjunction with specific embodiment, the present invention is further described:

[0017] Cruciferous plant materials such as purple cabbage are washed and primary crushed, blanched with acid leaching solution to inactivate enzymes, and then leached in a water bath lower than 65°C for 1 to 12 hours, solid-liquid separation, and clear liquid; clear After the solution is filtered through ultrafiltration and reverse osmosis step by step membrane, the pigment extract solution is obtained. Inhale the pigment extract into a DPCD reaction kettle preheated to 37°C, seal the reaction kettle, increase the pressure to 30MPa, keep it for 30min, and quickly release the pressure. When the pressure in the reaction kettle drops to normal pressure, release the extraction solution from the outlet liquid. Carry out quantitative analysis, microbial index determination, color and odor evaluation.

[0018] In the above examples, we can also change the treatment conditions to: 7MP...

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Abstract

The invention discloses a method used to remove the peculiar smell of crucifer pigment extract. The technical proposal of the method comprises the following steps: pigment extract is added in a DPCD treater to carry out DPCD treatment for 10 to 60 min under 7 MPa to 45 MPa; then, medium-speed decompression and quick-speed decompression are carried out in turn; and finally, when pressure is dropped to normal pressure, pigment extract is discharged. The method, which can remove peculiar smell while effectively ensuring the quality of the pigment extract, has a short production cycle and saves energy resource; meanwhile, during removing the peculiar smell, the method can also sterilize the pigment extract, thereby prolonging product storage period, shortening manufacturing chain and increasing production efficiency. The method can be used to remove the peculiar smell not only in the pigment extract of crucifer such as red cabbage, but also in the extract of other natural products.

Description

technical field [0001] The invention relates to a method for removing peculiar smell of a cruciferous plant pigment extract, by which the unpleasant smell of the cruciferous plant pigment extract is removed, the quality of the pigment extract is improved and the scope of application is expanded, and it belongs to food processing and agricultural product processing technology field. Background technique [0002] Today, when food safety issues are highly concerned, the application of food colorants has attracted much attention. The types and quantities of synthetic colors are decreasing, while natural colors are gaining popularity. Many cruciferous plants such as purple cabbage and carrots are rich in pigments. The rational development and utilization of these natural pigment resources is an important topic in the field of food additives. However, due to the complexity of its raw materials, the pigment extract often has an unpleasant smell, which restricts the use of these n...

Claims

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Application Information

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IPC IPC(8): C09B61/00B01D61/00
Inventor 廖小军徐贞贞胡小松张燕
Owner CHINA AGRI UNIV
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