A kind of industrialized method for preparing green coffee bean extract

A green coffee bean and extract technology, applied in coffee extraction, chemical instruments and methods, coffee, etc., can solve the difficulties of extraction and purification of green coffee bean extract, affect the application of green coffee bean extract, and make it difficult to break through international trade barriers and other problems, to achieve the effect of good product purification effect, high degree of innovation in technology and equipment integration, and easy realization of industrial production

Active Publication Date: 2022-06-17
CHENGUANG BIOTECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Every year, tens of thousands of tons of green coffee beans cannot meet the requirements of direct consumption and are discarded, resulting in waste of resources and environmental pollution
[0004] Because there are many types of chlorogenic acid isomers in green coffee beans, and the polarities are not the same, it brings difficulties to the extraction and purification of green coffee bean extracts. Conventional extraction solvents and extraction methods are used to extract The yield is low, and the proportion of active ingredients is unstable, which affects subsequent development and utilization
In addition, the caffeine, small molecular sugars and lipids contained in green coffee beans make the green coffee bean extract have high caffeine content, poor powder fluidity, and serious moisture absorption and agglomeration, which greatly affects the quality of green coffee beans. The application of extracts in end products; at the same time, countries have continued to tighten restrictions on pesticide residues in plant extracts in recent years. The preparation process of green coffee bean extract itself is a component enrichment process, and the pesticide residues in the product are also enriched , it is increasingly difficult to break through international trade barriers; therefore, it is urgent to develop high-quality green coffee bean extract production industrialization technology to improve product quality and market competitiveness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0022] Weigh 100.0kg of green coffee bean raw materials, check that the chlorogenic acid content is 7.05%, and the caffeine content is 1.58%. Use an anti-collision hydraulic flaking machine to roll flakes with a thickness of 0.31mm, and the continuous cooling of the pressure roller is controlled below 58 ℃ .

[0023] Use supercritical carbon dioxide fluid to pre-extract green coffee bean embryo slices, the flow rate of carbon dioxide is 800L / h, the pre-extraction is performed at a temperature of 50 ° C and a pressure of 18 MPa for 5 hours, and two separation kettles are used for two-stage separation and analysis. The first-stage analysis pressure is 8MPa, and the secondary analytical pressure is 5MPa. After the carbon dioxide is recovered, two-stage separation and pre-extracted embryos are obtained, and the two-stage separation is discarded for harmless treatment.

[0024] After pre-extraction, the embryos were kept at 40°C and the pH was kept at 4.7, and were extracted 4 tim...

Embodiment example 2

[0026] Weigh 500.0kg of green coffee bean raw materials, check that the chlorogenic acid content is 7.33%, and the caffeine content is 2.24%. Use an anti-collision hydraulic flaking machine to roll sheets with a thickness of 0.35mm, and the continuous cooling of the pressure roller is controlled below 56 ° C .

[0027] Use supercritical carbon dioxide fluid to pre-extract green coffee bean embryo slices, the flow rate of carbon dioxide is 4000L / h, the pre-extraction is carried out at a temperature of 52 ° C and a pressure of 19 MPa for 5.5 hours, and two separation kettles are used for two-stage separation and analysis. The first-stage analysis pressure is 9MPa, and the secondary analytical pressure is 5.5MPa. After the carbon dioxide is recovered, two-stage separation and pre-extracted embryos are obtained, and the two-stage separation is discarded for harmless treatment.

[0028] After pre-extraction, the embryos were kept at 42°C and pH was kept at 4.6, and extracted 6 times...

Embodiment example 3

[0030] Weigh 200.0kg of green coffee bean raw materials, check that the chlorogenic acid content is 7.86%, and the caffeine content is 1.15%. Use an anti-collision hydraulic flaking machine to roll sheets with a thickness of 0.25mm, and the continuous cooling of the pressure roller is controlled below 55 ℃ .

[0031] Green coffee bean embryos were pre-extracted with supercritical carbon dioxide fluid. The flow rate of carbon dioxide was 2000 L / h, and the pre-extraction was performed at a temperature of 48 °C and a pressure of 17 MPa for 4.5 hours. Two separation kettles were used for two-stage separation and analysis. The first-stage analysis pressure was 9MPa, and the secondary analytical pressure is 5.4MPa. After the carbon dioxide is recovered, two-stage separation and pre-extracted embryos are obtained, and the two-stage separation is discarded for harmless treatment.

[0032] After pre-extraction, the embryos were kept at 40°C and pH 4.6, and extracted with 78wt% ethanol...

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PUM

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Abstract

The invention discloses an industrialized method for preparing green coffee bean extract. The steps include raw material flaking, supercritical pre-extraction, organic solvent extraction, organic solvent separation and purification, macroporous adsorption resin purification, spray drying and the like. The invention has the advantages of high integration and innovation, easy realization of industrialized production, good product purification effect, high yield of green coffee bean extract, etc. The product's water solubility, moisture resistance, caffeine content and other indicators are obviously better than those of peer products, and the pesticide residue meets The most stringent international standard requirements, has achieved industrial production.

Description

technical field [0001] The invention relates to an industrialized method for producing high-quality green coffee bean extracts with specific specifications, in particular to an industrialized method for preparing green coffee bean extracts. Background technique [0002] Green coffee beans are the seeds of the Rubiaceae plant coffee tree, which are rich in active substances. Among them, chlorogenic acid and its homologues (also known as green coffee bean extract) are the main polyphenol active components of green coffee beans, which have antioxidant properties. , antiviral, anticancer, antibacterial and other biological activities. The latest research by American scientists believes that green coffee bean extract has good weight loss and blood pressure lowering functions, so it is very popular among consumers. [0003] my country is the main producer of green coffee beans. The production areas are concentrated in Yunnan and Hainan provinces. Yunnan is dominated by small coff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/02B01D11/04A23F5/26
CPCB01D11/0203B01D11/0284B01D11/0492A23F5/267
Inventor 程远欣张喆杨清山钱建瑞刘丹
Owner CHENGUANG BIOTECH GRP CO LTD
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