Method for extracting lavandula angustifolia flavone from lavandula angustifolia pulp water

A technology of lavender and grass flavonoids, applied in the direction of organic chemistry and the like, can solve the problems of large biological oxygen consumption value, high discharge cost, large water volume and the like, and achieve the effects of simple process, low cost and high economic value.

Active Publication Date: 2016-09-21
上海玖思实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of lavender is used to extract essential oil every year. The main method of extracting essential oil is steam distillation, which will produce a large amount of slag water. Lavender slag can generally be used as organic fertilizer, but the lavender slag water produced is very large and contains organic matter. , the biological oxygen consumption value is large, direct discharge will pollute the environment, and the cost of discharge after treatment is high, which has always been a problem that has plagued essential oil factories

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) The conditions for preparing the lavender residue water concentrate are as follows: 200 L of lavender residue water from a lavender essential oil factory is concentrated under reduced pressure at 60° C. to obtain a 20 L concentrate.

[0027] (2) The described lavender residue water concentrate is carried out pretreatment method: 20L lavender residue water concentrate is mixed with 100L 95% ethanol and placed at room temperature for 5 hours, filtered to remove insolubles, to obtain the filtrate, and the filtrate is concentrated to obtain 10L Column solution.

[0028] (3) The upper column liquid is adsorbed by the macroporous resin, the upper column liquid volume is 10L, and the above column flow rate is 2BV / h and passes through the AB-8 resin column to obtain the macroporous resin adsorbed with lavender flavonoids.

[0029] (4) According to the elution conditions, 4BV of clear water passes through the resin column at a flow rate of 2BV / h, then eluted with 4BV of 20% ...

Embodiment 2

[0032] (1) The conditions for preparing the lavender residue water concentrate are as follows: 200 L of lavender residue water from a lavender essential oil factory is concentrated under reduced pressure at 60° C. to obtain a 20 L concentrate.

[0033] (2) The described lavender residue water concentrate is carried out pretreatment method: 20L lavender residue water concentrate is mixed with 100L 95% ethanol and placed at room temperature for 5 hours, filtered to remove insolubles, to obtain the filtrate, and the filtrate is concentrated to obtain 10L Column solution.

[0034] (3) The upper column liquid is adsorbed by the macroporous resin, the upper column liquid volume is 10L, and the above column flow rate is 2BV / h and passes through the AB-8 resin column to obtain the macroporous resin adsorbed with lavender flavonoids.

[0035] (4) According to the elution conditions, 4BV of clear water passes through the resin column at a flow rate of 2BV / h, then eluted with 4BV of 30% ...

Embodiment 3

[0038] A method for extracting lavender flavonoids from lavender residue water, the method comprises the following steps:

[0039] a, take the lavender residue water after lavender essential oil is extracted, and concentrate the lavender residue water under reduced pressure at 40° C. to obtain the lavender residue water concentrate; wherein, according to the volume ratio, the lavender residue water:concentrate=20:1 concentrate ;

[0040] b. Carry out pretreatment to the concentrated solution of lavender residue water to obtain the upper column liquid. The pretreatment method is: mix the concentrated solution of lavender residue water with 75v% ethanol solution, place it at normal temperature for 10h, filter, take the filtrate, concentrate, Obtain upper column liquid; Wherein, the volume ratio of concentrated solution and ethanol solution is 1:2, and the volume ratio of filtrate and upper column liquid is 10:1;

[0041] c, the upper column liquid is adsorbed by the macroporous...

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PUM

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Abstract

The invention relates to a method for extracting lavandula angustifolia flavone from lavandula angustifolia pulp water. The method is characterized by comprising the following steps: a, concentrating lavandula angustifolia pulp water formed after essential oil is refined from lavandula angustifolia, so as to obtain a lavandula angustifolia pulp water concentrated solution; b, pretreating the lavandula angustifolia pulp water concentrated solution, so as to obtain upper column liquid; c, absorbing the upper column liquid through macroporous resin, so as to obtain macroporous resin with absorbed lavandula angustifolia flavone; d, performing gradient elution on the macroporous resin with absorbed lavandula angustifolia flavone, and collecting eluant; e, concentrating and drying the eluant, so as to obtain lavandula angustifolia flavone. Compared with the prior art, the method has the advantages that the technology is simple, the cost is low, performing further flavone extraction by adopting the lavandula angustifolia pulp water left after the extraction of essential oil can realize turning waste into treasure, and most importantly, the obtained lavandula angustifolia flavone is high in purity and has high economic value.

Description

technical field [0001] The invention belongs to the field of natural product purification, and in particular relates to a method for extracting and purifying lavender flavonoids from lavender residue water. Background technique [0002] Lavender is a perennial plant of the Lamiaceae genus Lavender. The whole plant of lavender leaves, stems and flowers has a strong fragrance. , Chen Jiluan, Jiang Ying. Food Science and Technology, 2007, (5): 123-125]. Lavender essential oil not only smells fragrant, but also has anti-fungal, anti-inflammatory, analgesic, and anti-anxiety effects [Shen Yuxiu, Wu Ting, Chen Jianwu. Food Science and Technology, 2009, 34 (4): 207-209; Zhang Zhaohong, Xinjiang Agricultural University Dissertation, 2008]. A large amount of lavender is used to extract essential oil every year. The main method of extracting essential oil is steam distillation, which will produce a large amount of slag water. Lavender slag can generally be used as organic fertilizer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07G99/00
CPCC07G99/00
Inventor 刘儒华
Owner 上海玖思实业有限公司
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