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Hop supercritical residues comprehensive utilization method

A raffinate and supercritical technology, which is applied in the food field, can solve the problems of low extraction rate of polar or ionic compounds, and achieve the effect of improving utilization value and economic value

Active Publication Date: 2010-08-11
SUZHOU ZEDAXINGBANG MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to supercritical CO 2 Extraction process works well for volatile oils and other non-polar compounds, but less for polar or ionic compounds, leaving most of the polyphenolic compounds in the raffinate

Method used

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  • Hop supercritical residues comprehensive utilization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 30.0g of granular hop supercritical raffinate, add 300ml of 50% ethanol solvent at a ratio of 1:10, extract at 60°C for 1 hour, filter, add 5 times the amount of solvent to the filter residue for half an hour, filter, and combine the filtrates. Concentrate under reduced pressure at 60°C to 60ml, let stand overnight, and filter off any precipitate to obtain a concentrated solution. The concentrated liquid is dried by a vacuum dynamic drying method at a drying temperature of 45-55° C. to obtain 3.26 g of dried golden yellow hops secondary extract. After analysis, the content of total polyphenolic compounds in the dried product reached 45.5%, and the moisture content was 4.14%.

Embodiment 2

[0021] Example 2: Weigh 30.0g of granular hop extract, add 300ml of 50% ethanol solvent in a ratio of 1:8, extract at 60°C for 1 hour, filter, add 5 times the amount of solvent to the filter residue for half an hour, filter, and combine filtrate. Other operations were the same as in Example 1 to obtain 2.93 g of dried golden yellow hops secondary extract. After analysis, the content of total polyphenolic compounds in the dried product reached 50.3%, and the moisture content was 3.81%.

Embodiment 3

[0022] Example 3: Weigh 30.0 g of granular hop extract, add 300 ml of water at a ratio of 1:10, extract at 80° C. for 1 hour, filter, add 5 times the amount of solvent to the filter residue for half an hour, filter, and combine the filtrates. Other operations were the same as in Example 1 to obtain 3.16 g of dried golden yellow hops secondary extract. After analysis, the content of total polyphenolic compounds in the dried product reached 41.0%, and the moisture content was 5.11%.

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Abstract

The present invention relates to a hop supercritical residue comprehensive utilization method. A secondary extract of the hop can be obtained through the processes of the residue solvent extraction, solvent concentration, dynamic dry, etc. The extract contains polyphenolic compounds, which can be added in beer to improve the anticorrosion capacity and the flavor of the beer. The method of the present invention improves the utilization value of the hop. The polyphenol extraction can improve the economical value of the hop and is the secondary utilization of resources, which accords with the strategies of the sustainable development and the cycle economy. The present invention provides a raw material with low price and high quality for extracting the hop polyphenol. The adopted supercritical CO2 extraction process equals to a pretreatment, which makes most volatile oil and other non-polar compounds eliminated. And the polyphenolic compound content in the secondary extract is higher.

Description

technical field [0001] The invention belongs to the food industry and relates to the secondary utilization of natural plant resources, in particular to a comprehensive utilization method of hop supercritical raffinate. Background technique [0002] Hops (Humunus Lupulus L) has another name called Hubu (English common name Hop), fragrant hops, hops, wild hops, and is a perennial climbing herb of the genus Moraceae. It is a relatively cold-resistant and heat-resistant plant, mainly distributed in Northwest China, northern Xinjiang, Northeast China, East China and Shandong, Gansu, Shaanxi and other places. At present, my country's annual output of hops is about 20,000 tons, accounting for 13% of the world, second only to the United States and Germany, ranking third in the world. [0003] The biggest use of hops is one of the raw materials for beer brewing, which is added to beer in the form of hop extract or products. With the development of science and technology, supercriti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/29A23L1/03A23L1/30C12C5/02A23L33/105
Inventor 王龙虎刘雪松陈勇
Owner SUZHOU ZEDAXINGBANG MEDICAL TECH
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