Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Optical fiber device and method for detecting reducing sugar

A technology of optical fiber and optical fiber bundle, which is applied in the field of analysis and sensing, can solve the problems of expensive atomic absorption spectrometer equipment, cumbersome operation steps, and expensive instruments and equipment, and achieve broad commercial application prospects, simplify assembly procedures, and simplify complex designs.

Pending Publication Date: 2021-06-22
BIOLOGY INST OF SHANDONG ACAD OF SCI
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the ultraviolet-visible spectrophotometer method is expensive in equipment, cumbersome in operation steps, requires a large amount of standard products, and is greatly affected by external conditions, which is not conducive to industrial applications and the detection of a large number of samples; high-performance liquid chromatography requires the use of refractive index detection The instrument has strict requirements on the environment, poor repeatability, and has disadvantages such as expensive equipment, low sensitivity, long system equilibrium time, large amount of standard products required, and greater influence by external conditions; atomic absorption spectrometers also have expensive equipment , the disadvantage of cumbersome operation
Moreover, the above-mentioned methods for measuring the content of reducing sugars all use the transmission mode for measurement, and the method for measuring reducing sugars in the transmission mode is difficult to avoid the influence of air bubbles in the solution

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
  • Optical fiber device and method for detecting reducing sugar
  • Optical fiber device and method for detecting reducing sugar
  • Optical fiber device and method for detecting reducing sugar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, an optical fiber device for detecting reducing sugars includes a sample mixing reaction cell 8 , a reflecting mirror 9 , an optical fiber bundle 3 , an optical fiber laser 1 and a spectrum analyzer 13 .

[0042] The top of the sample mixing reaction pool 8 has a test liquid inlet 6 and a reaction reagent inlet 7, and the bottom of one side has a waste liquid discharge port 10 (equipped with a valve or a stopper);

[0043] The first flow syringe pump 4 pumps the liquid to be tested from the liquid to be tested inlet 6 into the sample mixing reaction pool 8;

[0044] The second flow injection pump 5 pumps the reaction reagent into the sample mixing reaction cell 8 from the reaction reagent inlet 7 .

[0045] The sample mixing reaction pool 8 is provided with a magnetic stirrer 11 and a temperature control device 12; the temperature control device 12 can be connected to a computer 14, and the computer 14 issues temperature control instructions. ...

Embodiment 2

[0059] Use the device in embodiment 1 to measure the reducing sugar sample liquid extracted from wheat flour:

[0060] (1) Use acetone, ethanol, and water to wash the sample mixing reaction tank 8 and the pipeline channel used for sample injection in sequence;

[0061] (2) Under the action of the first flow syringe pump 4, 5ml reducing sugar sample solution is injected into the sample mixing reaction tank 8 through the liquid to be tested inlet 6; under the action of the second flow syringe pump 5, 2.5ml containing The reaction reagents of 0.27M copper sulfate pentahydrate, 2.5 μL concentrated sulfuric acid, 1.23M potassium sodium tartrate and 2.5M sodium hydroxide are injected into the sample mixing reaction pool 8 through the reaction reagent inlet 7; Next, the reducing sugar sample solution and the reaction reagent are fully mixed in the sample mixing reaction cell 8;

[0062] (3) Control the temperature control device 12 through the computer 14 to adjust the temperature, ...

Embodiment 3

[0066] The reducing sugar sample liquid extracted from potatoes is measured using the device in Example 1:

[0067] (1) Use acetone, ethanol, and water to wash the sample mixing reaction tank 8 and the pipeline channel used for sample injection in sequence;

[0068] (2) Under the action of the first flow syringe pump 4, 5ml of the reducing sugar sample solution is injected into the sample mixing reaction tank 8 through the sample inlet 6 of the liquid to be tested; under the action of the second flow syringe pump 5, 5ml contains 0.028M The reaction reagent of 3,5-dinitrosalicylic acid, 0.650M sodium hydroxide and 75 μL glycerol is injected into the sample mixing reaction pool 8 through the reaction reagent inlet 7; under the action of the magnetic stirrer 11, the reduced The sugar sample solution and the reaction reagent are fully mixed in the sample mixing reaction tank 8;

[0069] (3) Control the temperature control device 12 through the computer 14 to adjust the temperatur...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an optical fiber device for detecting reducing sugar. The optical fiber device comprises a sample mixing reaction tank, a reflecting mirror surface, an optical fiber / optical fiber bundle, an optical fiber laser and a spectrum analyzer, wherein the sample mixing reaction tank is provided with a to-be-detected liquid sample inlet and a reaction reagent sample inlet; a temperature control device is arranged in the sample mixing reaction tank; the reflecting mirror surface is mounted in the sample mixing reaction tank; one end of the optical fiber / optical fiber bundle is vertically opposite to the reflecting mirror surface, and the other end is respectively connected with the optical fiber laser and the spectrum analyzer through the coupler; and a gap is formed between one end of the optical fiber / optical fiber bundle, which is vertically opposite to the reflecting mirror surface, and the reflecting mirror surface, and is not greater than 0.02 mm. The invention further discloses a method for detecting the reducing sugar. An input signal and an output signal pass through the same optical fiber / optical fiber bundle in a vertical reflection mode, the step that bubbles must be removed in the testing process is avoided by controlling the distance between the end face of the optical fiber / optical fiber bundle and the reflection mirror face, and the optical fiber device is suitable for being applied and popularized in reducing sugar detection.

Description

technical field [0001] The invention relates to the technical field of analysis and sensing, in particular to an optical fiber device and method for detecting reducing sugar. Background technique [0002] The content of reducing sugar has a great influence on the shape, structure, physical and chemical properties of food, as well as its color, aroma and taste. It is an important indicator of the nutritional value of food and an important indicator of food quality. If the content of reducing sugar in the edible product is high, it may cause the product to absorb moisture, become soft, leak water, and become intolerant to storage and deteriorate; if the content of reducing sugar is low, it may cause the edible product to form small crystal blocks before forming Hard, affecting the flavor and quality of the product itself, affecting the fermentation process and the yield of the product. The ratio of reducing sugar and non-reducing sugar in food can be known through the content...

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 Applications(China)
IPC IPC(8): G01N21/01G01N21/39
CPCG01N21/01G01N21/39
Inventor 李秋顺史建国马耀宏杨俊慧蔡雷杨艳孟庆军朱思荣张显升李大海
Owner BIOLOGY INST OF SHANDONG ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com