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Method of processing chlorogenic acid-rich coffee beans

A processing method and technology of coffee beans, which are applied in roasting coffee, green coffee processing, etc., can solve problems such as coffee taste or aroma reduction, and achieve the effects of increasing extraction rate, improving utilization rate, and strong aroma

Inactive Publication Date: 2006-08-09
SUNTORY BEVERAGE & FOOD LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, after the canned coffee drink is opened, the characteristic taste or aroma of coffee will decrease over time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] In a pressure vessel equipped with fluid inlet and outlet pipes, add green coffee beans (Arabica species), and pass water vapor from the fluid inlet pipe. When the pressure in the vessel is 1.3 MPa (190°C), close the valve of the outlet pipe. Keep it for 1 to 10 minutes. After that, the valve of the outlet pipe was opened, and the pressure was gradually released to obtain processed coffee beans having a roasting degree (L value) of 18 to 23 (invention products 1 to 3).

[0062] Use a general electric roaster (hot-air roaster) to process the green coffee beans (Arabica type) and roast them with hot air for 7-15 minutes to obtain roasted coffee beans with an L value of 18-23 (references 1 to 3) .

[0063] Measure the content of chlorogenic acids in the coffee beans of the present invention 1 to 3 and the reference samples 1 to 3 (chlorogenic acid determination procedure).

[0064] Crush the test samples with a grinder, take 0.2g of each, and use 100ml of 80% methanol as the e...

Embodiment 2

[0069] Inventive product 3 and reference product 3 with the same L value (18) were used as the test samples. 30g of each was pulverized with a grinder, and extracted with 450g of hot water using a general commercially available drip coffee machine. The coffee extract (coffee beverage) is obtained, and the content of the chlorogenic acid is determined by HPLC. And they were evaluated sensory by professional judges.

[0070] testing sample

Invention 3

Reference 3

L value of processed coffee beans

18

18

Chlorogenic acid in coffee beverages

Substance content (ppm)

502

258

Fragrant

Feel strongly at the same time

Has a strong roasting aroma and

Pure bean fragrance

I feel the same as Invention 3

Waiting for the baking aroma, and at the same time a little

Scorched aroma

Taste

The fruity aroma can suppress the sour taste,

Has a strong aftertaste

Refreshing taste and bi...

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PUM

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Abstract

A method of processing coffee beans comprising roasting green coffee beans to give roasted coffee beans wherein the roasting treatment is carried out by bringing the green coffee beans into contact with a fluid at a high temperature and high pressure.

Description

Technical field [0001] The invention relates to a coffee bean processing method for preparing roasted coffee beans by roasting green coffee beans. Background technique [0002] The components that are the source of the unique taste or aroma of coffee (hereinafter referred to as coffee aroma components) are produced by a complex chemical reaction that continuously occurs in the green coffee beans through a roasting process in which the green coffee beans are heat-treated. Generally, the roasting process of green coffee beans is carried out by hot air, direct fire, etc. under normal pressure conditions. [0003] After the roasting process, the coffee aroma components are then extracted and can be added to, for example, canned coffee beverages. [0004] However, after the canned coffee beverage is opened, the unique taste or aroma of coffee will decrease over time. This is because the coffee beverage in the unsealed can contacts with oxygen molecules in the atmosphere to generate hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23F5/04
CPCA23F5/02A23F5/04
Inventor 河村峰子石川义晃中原光一
Owner SUNTORY BEVERAGE & FOOD LTD
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