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Black tea beverage having alpha-amylase inhibition activity, and preparation method thereof

An amylase inhibition, dark tea technology, applied in the direction of tea extraction, etc., can solve the problem of not having α-amylase inhibitory activity and the like

Active Publication Date: 2017-03-29
湖南小黑神生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing dark tea drinks do not have α-amylase inhibitory activity

Method used

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  • Black tea beverage having alpha-amylase inhibition activity, and preparation method thereof
  • Black tea beverage having alpha-amylase inhibition activity, and preparation method thereof
  • Black tea beverage having alpha-amylase inhibition activity, and preparation method thereof

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preparation example Construction

[0024] A preparation method of black tea beverage with α-amylase inhibitory activity, comprising the following steps:

[0025] After the black tea water extract is finely filtered by ultra-microfiltration membrane or microporous membrane, it is heated at 130~100℃ for 15 minutes~3 hours to obtain a black tea drink with α-amylase inhibitory activity. The heating temperature during heating The lower the value, the longer the minimum heating time required. When the heating temperature is 130°C, the minimum heating time is 15 minutes. When the heating temperature is 100°C, the minimum heating time is 3 hours.

[0026] The black tea water extract can be a tea soup brewed by a conventional black tea brewing method. Heating can significantly increase the inhibitory effect of the black tea water extract on the starch hydrolyzed by α-amylase. The higher the heating temperature, the shorter the heating time required. When the heating temperature is 100°C, the minimum heating time is 3 hours...

Embodiment 1

[0037] 400 grams of black tea, add 20 liters of water, heat to 95°C, keep for 60 minutes, and filter to obtain a coarse filtrate. After the coarse filtrate is cooled, it is filtered with a microporous membrane with a pore size of 0.1-0.2 microns to obtain a fine filtrate. The refined filtrate is diluted with water to a tea-to-water ratio of 1:150 (each 150ml of tea contains 1 gram of dark tea), sealed in a can, placed in a high-pressure steam sterilizer, and heated at 130°C for 20 minutes to make a dark tea drink.

Embodiment 2

[0039] 400 grams of black tea, add 20 liters of water, heat to 95°C, keep for 60 minutes, and filter to obtain a coarse filtrate. After the coarse filtrate is cooled, it is filtered with a microporous membrane with a pore size of 0.05-0.1 microns to obtain a fine filtrate. The refined filtrate is diluted with water to a tea-to-water ratio of 1:150 (each 150ml of tea contains 1 gram of dark tea), sealed in a can, placed in a high-pressure steam sterilizer, and heated at 130°C for 60 minutes to make a dark tea drink.

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Abstract

The invention discloses a preparation method of a black tea beverage having alpha-amylase inhibition activity. The preparation method comprises: adding water to a black tea, carrying out heating extraction, filtering to obtain a dark tea water extraction liquid, carrying out fine filtration on the dark tea water extraction liquid by using an ultra-fine filtration membrane or micro-pore filtration membrane, and heating for more than 15 min-3 h at a temperature of 130-100 DEG C to obtain the black tea beverage having the alpha-amylase inhibition activity, wherein the lower the heating temperature during the heating process, the longer the required shortest heating time, the shortest heating time is 15 min when the heating temperature is 130 DEG C, and the heating is performed for at least 3 h when the heating temperature is 100 DEG C. According to the present invention, the dark tea water extraction liquid is subjected to the fine filtration and then the heating is performed to prepare the black tea beverage having the alpha-amylase inhibition activity; and the preparation method has characteristics of short step, convenient operation and easy achieving, and the prepared black tea beverage has the significant alpha-amylase inhibition activity.

Description

Technical field [0001] The invention relates to the field of black tea beverages, in particular to a black tea beverage with α-amylase inhibitory activity and a preparation method thereof. Background technique [0002] Alpha-amylase inhibitors are one of the alpha-glucosidase inhibitors. They are relatively mature drugs for the treatment of diabetes and have been widely used in clinics. Its mechanism of action is: competitively inhibiting various α-glucosidase enzymes located in the small intestine, slowing down the decomposition of starch into glucose, thereby slowing down the absorption of glucose in the intestine and reducing postprandial hyperglycemia. Alpha-glucosidase inhibitors do not stimulate beta cells to secrete insulin, but they can reduce postprandial insulin levels, indicating that they can increase insulin sensitivity. [0003] The clinical effects of α-glycosidase inhibitors: [0004] (1) It can significantly reduce the risk of type 2 diabetes in people with impaire...

Claims

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Application Information

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IPC IPC(8): A23F3/16
Inventor 任秀江邹贤德任璐任旭红秦晓群聂再生熊瑶谢霞
Owner 湖南小黑神生物科技有限公司