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Industrial technology for preparing green coffee bean extract

A green coffee bean and extract technology, which is applied in coffee extraction, coffee, food science, etc., can solve the problems of green coffee bean extract extraction and purification difficulties, affecting the application of green coffee bean extract, and difficult to break through international trade barriers, etc. , to achieve good product purification effect, high degree of innovation in technology and equipment integration, and easy realization of industrial production

Active Publication Date: 2021-08-27
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 material, detect its chlorogenic acid content is 7.05%, caffeine content is 1.58%, use the anti-collision hydraulic flaking machine to roll the flakes, the thickness is 0.31mm, and the continuous cooling of the pressing roller is controlled below 58°C .

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

[0024] After pre-extraction, the embryo flakes were kept at 40°C and the pH was kept at 4.7, and extracted 4 times with 80wt% ethanol solution (the ratio of solid to liquid w...

Embodiment example 2

[0026] Weigh 500.0kg of green coffee bean raw material, detect its chlorogenic acid content is 7.33%, caffeine content is 2.24%, use the anti-collision hydraulic flaking machine to roll the flakes, the thickness is 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 flakes. The flow rate of carbon dioxide is 4000L / h. Pre-extract for 5.5 hours at a temperature of 52°C and a pressure of 19MPa. Two separation tanks are used for two-stage separation and analysis. 9MPa, the secondary analytical pressure is 5.5MPa. After recovering the carbon dioxide, two-stage isolates and pre-extracted embryo flakes are obtained, and the two-stage isolates are discarded for harmless treatment.

[0028] After pre-extraction, the germ slices were kept at 42°C and the pH was kept at 4.6, and extracted 6 times with 82wt% ethanol solution (the ratio of solid to liquid was 1:8) to obta...

Embodiment example 3

[0030] Weigh 200.0kg of green coffee bean raw material, detect its chlorogenic acid content is 7.86%, caffeine content is 1.15%, use the anti-collision hydraulic flaking machine to roll the flakes, the thickness is 0.25mm, and the continuous cooling of the pressing roller is controlled below 55°C .

[0031] Use supercritical carbon dioxide fluid to pre-extract the green coffee bean embryo flakes. The flow rate of carbon dioxide is 2000L / h, and the pre-extraction is at a temperature of 48°C and a pressure of 17MPa for 4.5 hours. Two separation tanks are used for two-stage separation and analysis. 9MPa, the secondary analytical pressure is 5.4MPa. After recovering the carbon dioxide, two-stage isolates and pre-extracted embryo flakes are obtained, and the two-stage isolates are discarded for harmless treatment.

[0032] After pre-extraction, the embryo flakes were kept at 40°C and the pH was kept at 4.6, and extracted 5 times with 78wt% ethanol solution (solid-liquid ratio: 1:5...

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PUM

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Abstract

The invention discloses an industrial technology for preparing a green coffee bean extract. The industrial technology comprises the steps of raw material flaking, supercritical pre-extraction, organic solvent extraction, organic solvent separation and refining, macroporous adsorption resin purification, spray drying and the like. The industrial technology has the advantages that integration and innovation degrees are high, industrial production is easy to achieve, product purification effect is good, the yield of the green coffee bean extract is high, etc.; and moreover, the indexes such as water solubility, moisture absorption resistance and caffeine content of the product are obviously superior to the indexes of products of the same class, pesticide residues meet the most stringent international standard requirements, and industrial production is achieved.

Description

technical field [0001] The invention relates to an industrialized technology for producing high-quality green coffee bean extracts with specific specifications, in particular to an industrialized technology for preparing green coffee bean extracts. Background technique [0002] Green coffee bean is the seed of the Rubiaceae coffee tree, which is rich in active substances, among which 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. According to the latest research by American scientists, 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, and the production areas are concentrated in Yunnan and Hainan provinces. Yunnan mainly produces arabic c...

Claims

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Application Information

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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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