Purification method for beta-phenylethyl alcohol prepared by bio-fermentation

The technology of a biological fermentation method and a purification method is applied in the field of purification of β-phenethyl alcohol, and can solve the problems of a purification method without natural flavor β-phenethyl alcohol and the like
CN104529700AInactive Publication Date: 2015-04-22SHANGHAI RES INST OF CHEM IND
4 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI RES INST OF CHEM IND
Publication Date
2015-04-22
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a purification method for beta-phenylethyl alcohol prepared by bio-fermentation. The method comprises the steps of: 1) pretreatment of a beta-phenylethyl alcohol crude product: taking the beta-phenylethyl alcohol crude product prepared by bio-fermentation as the raw material, removing macromolecular impurities remaining in beta-phenylethyl alcohol through an ultrafiltration device, and collecting permeate liquid; and 2) vacuum precise rectification purification: adding the permeate liquid into a precise rectification tower, conducting vacuum precise rectification to remove low-boiling point impurities and high-boiling point impurities respectively, thus finally obtaining the beta-phenylethyl alcohol product with purity higher than 99.9%. Compared with the prior art, the method provided by the invention adopts the way of filtering the crude product by an ultrafiltration assembly and then performing rectification, is especially suitable for purification of the beta-phenylethyl alcohol product prepared by bio-fermentation, and the obtained product has high purity, which reaches more than 99.9%.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a method for purifying beta-phenylethanol, in particular to a method for purifying beta-phenylethanol prepared by a biological fermentation method. Background technique

[0002] β-Phenylethyl alcohol is an aromatic alcohol with a fresh, elegant and delicate rose smell, and is widely used in detergents, cosmetics and other daily chemical fields and food applications. Beta-phenylethanol is formed naturally by yeast during fermentation, in addition to chemical synthesis on an industrial scale. During the fermentation process, most yeasts can produce fusel oil, and β-phenylethanol is an important component of fusel oil and a key factor in determining the quality of fermented food. For example, the concentration of β-phenylethanol in sake is 20 ~70mg / L, higher than 100mg / L in rice wine. Yeast cells can either synthesize it de novo or convert L-phenylalanine to β-phenylethanol through the amino acid catabolic pathway. With the imp...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More