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Method for extracting hesperidin and pectin in young citrus fruits through continuous phase transition

A technology for hesperidin and extraction, which is applied in the field of extraction of natural plant flavonoids and water-soluble polysaccharides, can solve the problems of harsh intermediate control conditions, low extraction efficiency, complicated processes, etc., so as to control the production cost and improve the extraction and separation efficiency. Simple effect of time and process flow

Inactive Publication Date: 2018-12-28
曹庸
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic acid extraction is the most commonly used method, but the extraction efficiency is not high and the time is long; ion exchange resin extraction has the problems of regeneration of ion exchanger and separation of resin and raw materials; the process of enzymatic extraction of pectin is more complicated, and the time is longer. Strict control conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: a kind of method of continuous phase change continuous extraction citrus young fruit hesperidin and pectin, comprises the following steps:

[0029] (1) Dry the selected young citrus fruit raw materials after removing impurities at a temperature of 50°C, control the moisture content to ≤15%, and crush them to 80 mesh to obtain young citrus fruit raw materials.

[0030](2) Weigh 10kg of the treated citrus young fruit raw material, put it into the extraction kettle of the continuous phase change extraction device, open the access switch, discharge the air in the system, slowly introduce absolute ethanol, and extract at an extraction temperature of 70°C, Under the condition of extraction pressure of 0.5Mpa, it circulates into the extraction kettle at a flow rate of 60L / h, and the continuous extraction time is 10 hours. After extracting hesperidin, absolute ethanol flows into the analysis kettle, the analysis temperature is 70°C, and the analysis pressure is 0.5...

Embodiment 2

[0032] Embodiment 2: a kind of method of continuous phase change continuous extraction citrus young fruit hesperidin and pectin, comprises the following steps:

[0033] (1) Dry the selected citrus young fruit raw materials after removing impurities at a temperature of 50°C, control the moisture content to ≤10%, and crush them to 60 mesh to obtain citrus young fruit raw materials.

[0034] (2) Weigh 10kg of the treated citrus young fruit raw material, put it into the extraction kettle of the continuous phase change extraction device, open the access switch, discharge the air in the system, slowly introduce 95% ethanol aqueous solution, and extract at an extraction temperature of 60°C , Under the condition of extraction pressure 0.5Mpa, flow into the extraction kettle at a flow rate of 80L / h, and the continuous extraction time is 8 hours. After extracting hesperidin, 95% ethanol flows into the analysis kettle, the analysis temperature is 70°C, and the analysis pressure is 0.7Mpa ...

Embodiment 3

[0036] Embodiment 3: a kind of method of continuous phase change continuous extraction citrus young fruit hesperidin and pectin, comprises the following steps:

[0037] (1) Dry the selected citrus young fruit raw materials after removing impurities at a temperature of 50°C, control the moisture content to ≤10%, and crush them to 60 mesh to obtain citrus young fruit raw materials.

[0038] (2) Weigh 10kg of the processed citrus young fruit raw material, put it into the extraction kettle of the continuous phase change extraction device, open the access switch, discharge the air in the system, slowly introduce 90% ethanol aqueous solution, and extract at an extraction temperature of 85°C , Under the condition of extraction pressure 0.6Mpa, flow into the extraction kettle at a flow rate of 70L / h, and the continuous extraction time is 12 hours. After extracting hesperidin, the extract flows into the analysis kettle, the analysis temperature is 70°C, and the analysis pressure is 0.5M...

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Abstract

The invention provides a method for extracting hesperidin and pectin in young citrus fruits through continuous phase transition. Dried and smashed young citrus fruit raw materials are subjected to continuous phase transition extraction with ethanol or methanol, wherein extraction conditions are as follows: the extracting agent velocity is 30-150 L / h, extractive temperature is 30-90 DEG C, the extraction pressure is 0.2-1.8 Mpa, extraction time is 2-24 h, separating temperature is 40-95 DEG C, the separating pressure is 0.1-1.5 Mpa; then, the young citrus fruit raw materials for hesperidin extraction is subjected to continuous phase transition extraction with tertiary water with pH 2-7, wherein extraction conditions are as follows: the extracting agent velocity is 30-120 L / h, extractive temperature is 50-95 DEG C, the extraction pressure is 0.1-1.6 Mpa, extraction time is 1-10 h, separating temperature is 55-90 DEG C, the separating pressure is 0.1-1.2 Mpa. The method is high in extraction rate, strong in continuous operability, simple and convenient to carry out, safe, friendly to the environment, low in cost and suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of extraction of natural plant flavonoids and water-soluble polysaccharides, and in particular relates to a continuous extraction method of hesperidin and pectin from young citrus fruits. Background technique [0002] Citrus young fruit has been used as the raw material of the traditional Chinese medicine Aurantium citrus, which is dried and preserved after picking. Compared with mature citrus, the content of flavonoids in citrus young fruit is much higher than the former. Extracting these substances from young citrus fruits can improve its nutritional value, and when added to food, it can also increase its health care function. [0003] Hesperidin (Hesperidin) is a dihydroflavonoid glycoside, as the most important one in flavonoids. As a biologically active substance, hesperidin has anti-oxidation, anti-allergic, antibacterial and anti-inflammatory, anti-viral, anti-cancer, maintenance of osmotic pressure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H17/07C07H1/08C08B37/06
CPCC07H1/08C07H17/07C08B37/0048
Inventor 曹庸侯韬陈彤戴伟杰
Owner 曹庸
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