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Method for greenly and efficiently extracting bergamot flavone and bergamot flavone

A bergamot flavonoid and extraction technology, which is applied in the direction of solid solvent extraction, can solve the problems of high manufacturing cost and maintenance cost, inconvenient extraction solvent recovery, low extraction efficiency, etc., and achieve high product quality, shorten extraction and separation time, and high-efficiency extraction Effect

Active Publication Date: 2018-11-23
广东展翠食品股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, methods such as hot water reflux, ethanol reflux, alkaline extraction, and microwave extraction have problems such as low extraction efficiency, difficulty in filtering after extraction, and inconvenient recovery of extraction solvents; while the equipment manufacturing and maintenance costs of supercritical extraction are too high, and The extremely high pressure limits the expansion of the equipment volume

Method used

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  • Method for greenly and efficiently extracting bergamot flavone and bergamot flavone
  • Method for greenly and efficiently extracting bergamot flavone and bergamot flavone
  • Method for greenly and efficiently extracting bergamot flavone and bergamot flavone

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 continuous phase-change extraction process of bergamot flavonoids

[0045]A green and efficient method for extracting bergamot flavonoids, comprising the following steps:

[0046] S1. After pulverizing the bergamot to 30 mesh, dry it with hot air at 50°C until the water content is 20%, to obtain bergamot powder, which is degreased by continuous phase change;

[0047] S2. The bergamot slag obtained in S1 is subjected to continuous phase change extraction to obtain a bergamot flavonoid product;

[0048] Wherein, the process condition of the continuous phase change extraction described in step S2 is:

[0049] S21. Extraction: Put the bergamot residue into the extraction device, use ethanol as the extraction agent, and compress the extraction agent into a liquid under the conditions of ethanol concentration of 85%, extraction temperature of 80°C, and extraction pressure of 0.2Mpa, and use 20L / h The flow rate flows through the extraction device, and the contin...

Embodiment 2

[0054] The research of embodiment 2 bergamot flavonoids continuous phase-change extraction process

[0055] 1. On the basis of the single factor, choose A ethanol concentration, B extraction temperature, and C extraction time as independent variables, each factor takes 3 levels, coded by -1, 0, +1, and continuous The response value (Y) of variable extraction bergamot flavonoid extraction rate was designed using Design-Expert8.0.6 software to design a three-factor three-level response surface analysis test, with a total of 17 test points, of which 12 were analysis factors and 5 were for center tests. to estimate the error. The coded value and real value of each factor are shown in Table 1.

[0056] Table 1

[0057]

[0058] 2. Continuous phase change extraction of bergamot flavonoids response surface test and results are shown in Table 2.

[0059] Table 2

[0060]

[0061]

[0062] 3, adopt Design-Expert software to carry out multiple regression fitting to the resp...

Embodiment 3

[0071] Example 3 Research on the traditional ethanol reflux extraction process of bergamot flavonoids

[0072] 1. On the basis of single factor, three factors of ethanol concentration (A), reflux time (B) and solid-liquid ratio (C) are taken as independent variables. Since the extraction temperature does not change significantly, it is set at 80°C. According to Box- Behnken center combination design principle, taking the extraction rate of bergamot flavonoids (Y) as the response value. Design-Expert 8.0.6 software was used to design a three-factor and three-level response surface analysis test, with a total of 17 test points, of which 12 were analysis factors and 5 were center tests to estimate errors. The coded value and real value of each factor are shown in Table 4.

[0073] Table 4

[0074]

[0075] 2. Continuous phase change extraction of bergamot flavonoids response surface test and results are shown in Table 5.

[0076] table 5

[0077]

[0078] 3, test result...

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Abstract

The invention discloses a method for greenly and efficiently extracting bergamot flavone and the bergamot flavone. The method is characterized in that the bergamot flavone is extracted by adopting thecombination of a continuous phase change technology and an ethanol reflux technology, and extraction technological conditions are optimized by taking the extraction rate of flavone as an index and adopting a response surface method on the basis of a single factor; main component analysis and comparison of extraction technological characteristics and in-vitro oxidation resistance are carried out on the bergamot flavone prepared under optimal conditions of the continuous phase change technology and a traditional ethanol reflux technology, so that the bergamot flavone is greenly and efficientlyextracted. A result shows that the extraction rate and the oxidation resistance of the bergamot flavone extracted through the technology are both remarkably higher than those of bergamot flavone obtained through the traditional ethanol reflux method (p is greater than 0.05), and main components of the obtained bergamot flavone are not affected (p is smaller than 0.05); the method provided by the invention is simple and fast in extraction technological process, strong in operability and low in cost, is environment-friendly and pollution-free, is good in completeness and repeatability and high in economic benefit, and is capable of realizing large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of extraction and separation. More specifically, it relates to a green and efficient method for extracting bergamot flavonoids and bergamot flavonoids. Background technique [0002] Bergamot is a Rutaceae citrus plant and is an evergreen small tree of the Rutaceae family. According to the place of origin, it is mainly divided into Guangberg Bergamot, Sichuan Bergamot, Golden Bergamot and Jian Bergamot. The planting area of ​​bergamot in Guangdong Province is large, reaching 2000hm 2 , the annual output is about 24,000 tons, and its planting area is still increasing year by year. At present, it mainly sells fresh fruit and bonsai, supplemented by roughly processed products such as bergamot preserved fruit. [0003] Bergamot fruit is sweet and slightly bitter, and contains various medicinal ingredients such as limonene, diosmin, hesperidin, coumarin, flavonoids and polysaccharides. Tumor and other physiol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02
CPCB01D11/02
Inventor 周爱梅王晋刘欣肖苏尧
Owner 广东展翠食品股份有限公司
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