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Method for adsorbing phenylethyl alcohol

A technology of phenylethanol and adsorbent, which is applied in the field of separation and enrichment of natural components, can solve the problems of lack of simple and feasible methods for separating and purifying natural 2-phenylethanol, and achieve high selectivity, high separation efficiency and simple operation Effect

Inactive Publication Date: 2017-05-10
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no simple and feasible method for isolating and purifying natural 2-phenylethanol from fermentation broth

Method used

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  • Method for adsorbing phenylethyl alcohol

Examples

Experimental program
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Effect test

Embodiment 1

[0021] (1) under stirring condition, put 1.57ml 2-phenylethanol in 3000ml deionized water, seal, stir 48h at room temperature, be mixed with the fermentation liquid that contains 2-phenylethanol, the concentration of 2-phenylethanol in the described fermentation liquid is 521.2mg / kg, which is close to the concentration of phenylethanol in real fermentation broth.

[0022] (2) the fermented liquid that step (1) obtains and adsorbent SiO 2 -P is mixed in contact, and the dosage ratio during mixing is: every 250mL of fermentation broth corresponds to 0.25g of adsorbent.

[0023] (3) Carry out adsorption experiment on the mixed solution obtained in step (2) on a TAITECMM-10 type oscillator, the oscillation rate of the oscillator is 120rpm, operate at room temperature 298K, pipette 2ml solution at regular intervals, and filter through a microporous membrane , measure the concentration of phenethyl alcohol in the filtrate by HPLC, and calculate SiO accordingly 2 -Absorptive amount...

Embodiment 2

[0026] (1) under stirring condition, put 1.35ml 2-phenylethanol in 3000ml deionized water, seal, stir 48h at room temperature, be mixed with the fermented liquid that contains 2-phenylethanol, the concentration of 2-phenylethanol in the described fermented liquid is 448.2mg / kg, which is close to the concentration of phenylethanol in real fermentation broth.

[0027] (2) the fermented liquid that step (1) obtains and adsorbent SiO 2 -P is mixed in contact, and the dosage ratio during mixing is: every 250mL of fermentation broth corresponds to 0.25g of adsorbent.

[0028] (3) Carry out adsorption experiment on the mixed solution obtained in step (2) on a TAITECMM-10 type oscillator, the oscillation rate of the oscillator is 120rpm, operate at room temperature 298K, pipette 2ml solution at regular intervals, and filter through a microporous membrane , measure the concentration of phenethyl alcohol in the filtrate by HPLC, and calculate SiO accordingly 2 -Absorptive amount of P....

Embodiment 3

[0031] (1) under stirring condition, put 1.79ml 2-phenylethanol in 3000ml deionized water, seal, stir 48h at room temperature, be mixed with the fermentation liquid that contains 2-phenylethanol, the concentration of 2-phenylethanol in the described fermentation liquid is 594.2mg / kg, which is close to the concentration of phenylethanol in real fermentation broth.

[0032] (2) the fermented liquid that step (1) obtains and adsorbent SiO 2 -P is mixed in contact, and the dosage ratio during mixing is: every 250mL of fermentation broth corresponds to 0.25g of adsorbent.

[0033] (3) Carry out the adsorption experiment on the mixed solution obtained in step (2) on the TAITECMM-10 type oscillator, the oscillation rate of the oscillator is 150rpm, operate under the room temperature of 298K, pipette 2ml solution at regular intervals, and filter through the microporous membrane , measure the concentration of phenethyl alcohol in the filtrate by HPLC, and calculate SiO accordingly 2 ...

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Abstract

The invention discloses a method for adsorbing phenylethyl alcohol. The method comprises the following step: mixing adsorbent and a fermentation liquid, wherein 2-phenylethyl alcohol in the fermentation liquid is adsorbed and enriched by the adsorbent; the adsorbent is polymer coated macroporous SiO2; and the concentration of the 2-phenylethyl alcohol in the fermentation liquid is 400-600 mg / kg. According to the method, the 2-phenylethyl alcohol can be adsorbed and enriched from the fermentation liquid; and the advantages of high selectivity, simple operation and high separation efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of separation and enrichment of natural components, in particular to a method for adsorbing phenethyl alcohol. Background technique [0002] 2-phenylethanol (2-phenylethanol), 2-phenylethanol, is an aromatic alcohol with rose fragrance, which naturally exists in the essential oils of many flowers (such as roses, hyacinths, etc.) and plants. Widely used in the food and cosmetic industries, it can be used to prepare rose-flavored and other edible and daily flavors. [0003] At present, the global annual output of 2-phenylethanol is nearly 10,000 tons, most of which are produced by chemical synthesis, and only a small part is extracted from natural rose oil. 2-phenylethanol produced by chemical synthesis often contains some by-products that are difficult to remove. These by-products, such as biphenyl, β-chloroethylbenzene, chloroethanol, etc., have bad smells and are even carcinogens harmful to human health. ...

Claims

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Application Information

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IPC IPC(8): C07C29/76C07C33/22
CPCC07C29/76C07C33/22
Inventor 张安运雷高明
Owner ZHEJIANG UNIV
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