Fluorescent compound for viscosity detection of alcoholic beverages and its preparation and application

A technology for fluorescent compounds and alcohol, applied in the field of food safety monitoring, can solve the problems of unsuitability for mass preparation, unfavorable fluorescence release, limited final yield, etc., and achieves good photostability and chemical structure stability, anti-interference. Good, easy post-processing results

Active Publication Date: 2022-06-07
JINGGANGSHAN UNIVERSITY
View PDF23 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, most of the fluorescent compounds currently prepared have complex preparation processes, high raw material prices, and limited final yields. Almost all of them can only be used in micro-environments such as biology, and are not suitable for large-scale preparation in industry. At the same time, because of their own There are a lot of hydrophobic aromatic conjugated structures in the chemical structure, which can easily lead to the ACQ effect and is not conducive to the release of fluorescence

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fluorescent compound for viscosity detection of alcoholic beverages and its preparation and application
  • Fluorescent compound for viscosity detection of alcoholic beverages and its preparation and application
  • Fluorescent compound for viscosity detection of alcoholic beverages and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A preparation method of a fluorescent compound for viscosity detection of alcoholic beverages, comprising the following steps:

[0044] (1) Dissolve 349 mg of 4'-(diphenylamino)-[1,1'-biphenyl]-4-carbaldehyde in ethanol, stir uniformly with ultrasonic, control 4'-(diphenylamino)-[1 , The concentration of 1'-biphenyl]-4-carbaldehyde is 1 M to obtain solution 1;

[0045] (2) Dissolve 123 mg of 4-methoxyaniline in ethanol, stir uniformly with ultrasonic, and control the concentration of 4-methoxyaniline to be 1 M to obtain solution 2;

[0046] (3) Mix solution 1 and solution 2, stir evenly, heat to 25 °C for 48 h, then remove the reaction solvent, wash with ethanol continuously and let stand for 2-3 times, and vacuum dry to obtain dark yellow powder (354.28 mg, yield 78%), the fluorescent compound (MIMDBA) was obtained.

[0047] The product was characterized by H NMR spectroscopy, 1 H NMR (400 MHz, CDCl 3 ) δ 8.53 (s,1H), 7.98 (d, J = 7.3 Hz, 2H), 7.70 (d, J = 8.3 ...

Embodiment 2

[0049] A preparation method of a fluorescent compound for viscosity detection of alcoholic beverages, comprising the following steps:

[0050] (1) Dissolve 349 mg of 4'-(diphenylamino)-[1,1'-biphenyl]-4-carbaldehyde in ethanol, stir uniformly with ultrasonic, control 4'-(diphenylamino)-[1 ,1'-biphenyl]-4-carbaldehyde with a concentration of 5 M to obtain solution 1;

[0051] (2) Dissolve 1230 mg of 4-methoxyaniline in ethanol, stir uniformly with ultrasonic, and control the concentration of 4-methoxyaniline to be 50 M to obtain solution 2;

[0052] (3) Mix solution 1 and solution 2, stir evenly, heat to 50 °C for reaction for 24 h, then remove the reaction solvent, wash with ethanol continuously and let stand for 2-3 times, and vacuum dry to obtain dark yellow powder (376.99 mg, the yield was 83%), the fluorescent compound (MIMDBA) was obtained.

[0053] The characterization results of the fluorescent compound MIMDBA obtained in this example are the same as those in Example ...

Embodiment 3

[0055] A preparation method of a fluorescent compound for viscosity detection of alcoholic beverages, comprising the following steps:

[0056] (1) Dissolve 349 mg of 4'-(diphenylamino)-[1,1'-biphenyl]-4-carbaldehyde in ethanol, stir uniformly with ultrasonic, control 4'-(diphenylamino)-[1 ,1'-biphenyl]-4-carbaldehyde with a concentration of 10 M to obtain solution 1;

[0057] (2) Dissolve 2460 mg of 4-methoxyaniline in ethanol, stir evenly with ultrasonic, and control the concentration of 4-methoxyaniline to be 100 M to obtain solution 2;

[0058] (3) Mix solution 1 and solution 2, stir evenly, heat to 78 °C and react for 1 h, then remove the reaction solvent, wash with ethanol continuously and let stand for 2-3 times, and vacuum dry to obtain dark yellow powder (404.25 mg, the yield was 89%), the fluorescent compound (MIMDBA) was obtained.

[0059] The characterization results of the fluorescent compound MIMDBA obtained in this example are the same as those in Example 1. Pl...

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

PUM

No PUM Login to view more

Abstract

The invention discloses a fluorescent compound used for viscosity detection of alcoholic beverages and its preparation and application. The fluorescent compound has the following structure: the fluorescent compound prepared by the invention itself has AIE characteristics, and can be used when the viscosity of the solution increases. , so that the electrons in the excited state return to the ground state through radiation transition, and then release the fluorescent signal, making the viscosity detection visualized, more convenient, efficient, fast, and in situ detection of viscosity changes in alcoholic beverages, and food safety monitoring played a certain role.

Description

technical field [0001] The invention relates to the technical field of food safety monitoring, in particular to a fluorescent compound used for viscosity detection of alcoholic beverages and its preparation and application. Background technique [0002] Liquor is an ethanol-containing beverage made by fermenting starch or sugar-containing substances such as grains and fruits. It has a long history of brewing and innovative brewing processes, and has derived many types of alcoholic beverages, including : Beer, wine, liquor, rice wine and other types, and even some medicinal wines have also been developed for health care and auxiliary treatment. As a widespread drink, it plays an extremely important role in public life and can be used in many occasions. However, as a kind of fermented food, it is extremely easy to deteriorate during the normal storage process, especially the low-alcohol beer, wine, fruit wine, etc. The rapid oxidation and decay of beverages, and at the same ...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C07C217/84C07C213/02C09K11/06G01N11/00
CPCC07C213/02C07C217/84C09K11/06G01N11/00C09K2211/1007C09K2211/1014G01N2011/008
Inventor 徐灵峰刘利民隋岩韩润林吴魁黄伟黄春芳黄艳蓉孙立和
Owner JINGGANGSHAN UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap