Method for removing noxious substances in natural extract

A technology of natural extracts and harmful substances, applied in natural dyes, chemical instruments and methods, liquid solution solvent extraction, etc., can solve the problems of safety impact, safety problems, artificial pollution sources, etc., to achieve product safety improvement, international The effect of enhanced competitiveness and advanced technology

Active Publication Date: 2013-07-17
CHENGUANG BIOTECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In 2008, an Irish company used recycled raw materials to process feed. The investigation results suspected that it had added motor oil, which caused the pork to be contaminated with dioxins. Its pork products were sold to 25 countries and regions, causing international panic, and Ireland recalled it. Thousands of tons of pork, heavy economic losses
[0006] Other hazards with toxic effects such as benzopyrene also affect safety. These hazards have natural and artificial sources of pollution, and the prevention and control work cannot be ignored
[0007] The root of the above problems is that the content of hazardous substances in natural extracts exceeds the standard, and the hazardous substances in natural extracts will enter the industrial chain through soil pollution, water pollution, air pollution, pollution in the production and operation process, chemical reaction formation, and addition by illegal traders. , which seriously affects product quality and downstream product safety. At present, prevention of various hazards is the main focus in the world, and product quality control is achieved by reducing pollution. With the growth of pollution sources, hazards are hard to prevent, and safety problems emerge in endlessly.
However, for natural extracts that have been contaminated by hazardous substances, there is no clear and effective treatment process or method in the world.

Method used

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  • Method for removing noxious substances in natural extract
  • Method for removing noxious substances in natural extract
  • Method for removing noxious substances in natural extract

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: Get capsanthin oleoresin 9.8kg, add trace amount of Sudan red industrial dye wherein to be used for quantitative verification removal effect, after adding, Sudan red I content 2.1ppm, Sudan red II content 2.1ppm, Sudan red III content 1.8ppm , using a 24L*2 supercritical carbon dioxide extraction line for processing, put the oleoresin into the extraction kettle, adjust to the following conditions and keep it for 6.0 hours:

[0016]

[0017] After the above treatment, there was 8.0kg of capsanthin oleoresin remaining in the extraction kettle. After testing, Sudan I, Sudan II and Sudan III could not be detected, and the detection limit of various Sudan red monomers was 10ppb. Harmful substances are effectively removed, and the products meet international standards such as the United States, Japan, and the European Union.

Embodiment 2

[0018] Embodiment 2: Get 10.5kg of lutein oleoresin, add trace synthetic antioxidant and pesticide to it and be used for quantitative verification removal effect, after adding, synthetic antioxidant ethoxyquinoline content 12ppm, cypermethrin content 2.5ppm, methylamine The phosphorus content is 5.0ppm, and the 24L*2 supercritical carbon dioxide extraction line is used for processing. The oleoresin is put into the extraction kettle, adjusted to the following conditions and kept for 4.0 hours:

[0019]

[0020] After the above treatment, 9.8kg of lutein oleoresin remained in the extraction kettle. After testing, ethoxyquinoline, cypermethrin and methamidophos were not detected, and ethoxyquinoline, cypermethrin and methamidophos were detected. The output limit is 10ppb.

Embodiment 3

[0021] Example 3: Prepare 8.0 kg of lutein oleoresin containing dioxins and polychlorinated biphenyls, wherein the content of dioxins is 5.18 ng / kg, and the content of polychlorinated biphenyls is 1.02 ng / kg. Use a 24L*2 supercritical carbon dioxide extraction line for processing, put the lutein oleoresin into the extraction kettle, adjust to the following conditions and keep it for 5.0 hours:

[0022]

[0023] After the above treatment, 7.3 kg of lutein oleoresin remained in the extraction kettle, and the content of dioxins and polychlorinated biphenyls was 0.81 ng / kg and 0.08 ng / kg after testing. Meet the requirements of international standards.

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Abstract

The invention belongs to the technical field of natural extract refining, in particular to a method for removing noxious substances in natural extract in high efficiency through supercritical treatment. The natural extract containing the noxious substances is pumped into an extraction kettle by a pump, wherein the technical parameters are that the pressure of the extraction kettle is between 10 and 40MPa, the temperature is between 32 and 60 DEG C; the pressure of a separation kettle is between 3.0 and 7.0MPa, and the temperature is between 30 and 45 DEG C; the flow rate of carbon dioxide is between 80 and 200L / h; and a residual product in the extraction kettle is discharged after the natural extract is maintained for 1 to 10 hours, and the residual product is the noxious substances-removed natural extract. Because the technology of supercritical treatment which is advanced and efficient is used, the noxious substances in the natural extract can be removed furthest, and industrial treatment can be realized.

Description

technical field [0001] The invention belongs to the technical field of refining natural extracts, in particular to a method for efficiently removing harmful substances in natural extracts. Background technique [0002] Natural extraction is an important link and method to realize the full utilization of active ingredients of animals and plants. There are many kinds of natural extracts, which generally have one or more physiological effects, and are widely used in food, medicine, feed, cosmetics, chemical industry and other fields. , and gradually replace some synthetic products to enhance safety performance, especially has a direct impact on food safety. Natural extracts include natural pigments, natural seasonings, natural nutrition and medicinal extracts. The domestic natural extract industry has developed rapidly in recent years. However, due to the deterioration of environmental conditions such as soil and air, and the increase in pesticides Illegal use of potentiating ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B61/00B01D11/04
CPCY02P20/54
Inventor 卢庆国连运河齐立军田洪程远欣
Owner CHENGUANG BIOTECH GRP CO LTD
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