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Preparation method of hesperidin and hesperidin

A technology of hesperidin and crystallization, which is applied in the field of hesperidin, can solve the problems of complex extraction process of hesperidin, large amount of waste water discharge, and dangerous extraction solvent, etc., and achieve high hesperidin content, large output, and short extraction time Effect

Active Publication Date: 2019-05-17
LIANYUAN KANGLU BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method for preparing hesperidin and the prepared hesperidin, so as to solve the existing technology of extracting hesperidin from Citrus aurantium with complex process, large waste water discharge, dangerous extraction solvent and high production cost question

Method used

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  • Preparation method of hesperidin and hesperidin
  • Preparation method of hesperidin and hesperidin
  • Preparation method of hesperidin and hesperidin

Examples

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preparation example Construction

[0024] figure 1 It is the flow chart of the preparation method of hesperidin of the preferred embodiment of the present invention.

[0025] like figure 1 As shown, the preparation method of hesperidin of the present embodiment uses soaking agent to soak Citrus aurantium powder to obtain a feed liquid, instantly mixes the feed liquid and the extractant by means of pressurized hedging, and then conducts solid-liquid separation to obtain filtrate, adjust the pH of the filtrate to be acidic, and crystallize the filtrate to obtain hesperidin; the soaking agent is a mixed solution of alkali and alcohol; the extracting agent is a mixed solution of alkali and alcohol. In the preparation method of hesperidin of the present invention, the citrus fruit powder is soaked with a soaking agent to obtain a feed liquid, and the feed liquid and the extractant are instantly mixed by means of pressure hedging, separated, filtered and crystallized to obtain hesperidin. The feed liquid and the ex...

Embodiment 1

[0039] Pulverize 50kg of citrus sugar through a 150-mesh sieve and add it to the soaking tank. Add 50L of slaked lime into an 85% ethanol solution to obtain a soaking liquid. The mass fraction of slaked lime is 0.05%. Add the soaking liquid to the soaking tank and mix and soak. 0.5h, to obtain feed liquid, add slaked lime into 150L volume fraction of 85% ethanol solution, the mass fraction of slaked lime is 0.05%, to obtain extractant, add it to the solvent tank, and the material liquid pipeline of the soaking tank is connected to the mixing tank, The material and liquid pipelines are provided with valves and pressure pumps. The solvent pipelines of the solvent tank are connected to the mixing tank. The solvent pipelines are provided with valves and pressure pumps. The material and liquid pipelines of the soaking tank and the solvent pipelines of the solvent tank are distributed on both sides of the mixing tank. And relative layout, adjust the two pressure pumps to 1.5MPa, open...

Embodiment 2

[0041] Pulverize 5kg of navel oranges through a 180-mesh sieve and add it to the soaking tank. Add 5L of sodium hydroxide to a 80% propanol solution to obtain a soaking liquid with a mass fraction of sodium hydroxide of 0.1%. Add the soaking liquid to the soaking tank. And carry out mixing and soaking for 1h to obtain a feed liquid, add sodium hydroxide to 15L of 80% propanol solution by volume, and the mass fraction of sodium hydroxide is 0.1% to obtain an extractant, add it to the solvent tank, and soak the material of the tank. The liquid pipeline is connected to the mixing tank, the material-liquid pipeline is provided with a valve and a pressure pump, the solvent pipeline of the solvent tank is connected to the mixing tank, the solvent pipeline is provided with a valve and a pressure pump, and the material-liquid pipeline of the soaking tank is connected to the solvent tank. The solvent pipelines are distributed on both sides of the mixing tank and are arranged opposite to...

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Abstract

The invention discloses a preparation method of hesperidin and the hesperidin. The preparation method includes soaking immature bitter orange powder with a soaking agent to obtain a material liquid, instantaneously mixing the material liquid and an extracting agent by means of pressing hedging, then performing solid-liquid separation to obtain a filtrate, adjusting the pH of the filtrate to enablethe filtrate to be acidic and crystallizing the filtrate to obtain the hesperidin; adopting a mixed solution of base and alcohol as the soaking agent; adopting the mixed solution of the base and thealcohol as the extracting agent. According to the preparation method, immature bitter orange particles are soaked with the soaking agent to obtain the material liquid, the material liquid and the extracting agent are instantaneously mixed in the pressing hedging mode for separation, filtering and crystallizing to obtain the hesperidin. The dosage of the extracting agent is 1-3 times that of the raw material, the hesperidin is extracted at room temperature, steam is not needed, the extraction time is short, the instantaneous extraction method is adopted, continuous operation can be achieved, high yield, high productivity, low cost and high hesperidin yield can be achieved, the yield reaches 30-35%, and the hesperidin content is 90-98%.

Description

technical field [0001] The invention relates to the field of hesperidin extraction, in particular, to a preparation method of hesperidin. In addition, the present invention also relates to a kind of hesperidin prepared by the above-mentioned preparation method of hesperidin. Background technique [0002] Hesperidin is commonly found in the leaves, barks, flowers and discarded peels of limes, sweet oranges, citrus aurantium and other Rutaceae citrus species, and is one of the main flavonoids in orange peels. Per ton of citrus fruit scraps such as peel, pulp, etc. can get 10kg ~ 15kg of hesperidin. As the fruit grows and matures, the content of hesperidin decreases significantly. Fruits with a diameter of 1.5cm to 2cm contain more than 20% of the dry weight of hesperidin, but when the diameter increases to 2.5cm to 3.5cm, the fruit contains The hesperidin accounts for less than 15% of the dry weight. In addition to citrus, hesperidin also exists in other plants, such as leg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H17/07C07H1/08
Inventor 魏有何肖业成刘冬敏廖深克李琼郭梦贤
Owner LIANYUAN KANGLU BIOLOGICAL TECH CO LTD
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