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Method for detecting content of sulfite in wine by using ozone oxidation luminescence spectrum

A technology of sulfite and ozone oxidation, which is applied in the measurement of color/spectral characteristics, etc., can solve the problems of the influence of detection results, large consumption of reagents, long detection cycle, etc., and achieve the effect of improving wine quality and fast detection speed.

Active Publication Date: 2014-11-12
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention proposes a method for detecting sulfite content in wine by using ozone oxidation luminescence spectrum, which can detect the sulfite content in wine on site, in real time, and quickly, and solves the influence of the pretreatment process on the detection results of the existing method and the detection Problems such as long period, high cost, large consumption of reagents and pollution

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  • Method for detecting content of sulfite in wine by using ozone oxidation luminescence spectrum
  • Method for detecting content of sulfite in wine by using ozone oxidation luminescence spectrum
  • Method for detecting content of sulfite in wine by using ozone oxidation luminescence spectrum

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Embodiment 1

[0058] A method for detecting sulfite content in wine using ozone oxidation luminescence spectroscopy, the working principle of the method is as follows:

[0059](1), use the detection instrument to detect a variety of (such as n types) different wines, obtain the ozonation luminescence spectra of n types of wines, take the average value of these spectra, and obtain the average ozonation luminescence spectra of the wines (see image 3 , the abscissa in the figure represents the wavelength of the spectrum, the unit is nm, the ordinate represents the number of photons, the unit is one, the same below), the wavelength λ1=490nm at the peak Gmax of the average spectral photon number is taken as the characteristic wavelength, and the characteristic wavelength λ1 corresponds to The peak photon number Gmax=84.05 is used as the weighted base for backup;

[0060] (2) Use the national standard GB / T15038-2006 method to detect the sulfite content of the above n different wines, and obtain ...

Embodiment 2

[0069] Embodiment 2 compares the spectra of sulfite solution and tested wine sample, and the steps are as follows:

[0070] (1), use the ozone generator 17 to generate ozone gas, the concentration range of ozone is 20mg / L, control the ozone peristaltic pump 14 so that the flow rate is 100mL / min, and send the ozone gas into the reaction chamber 3;

[0071] (2) Use the sample peristaltic pump 2 to send the wine sample into the reaction chamber 3 with a flow rate of 80mL / min;

[0072] (3) After the ozone gas passes through the microporous gas-permeable membrane 15, it mixes with the wine sample in the reaction chamber of the reaction chamber, and continuously and evenly contacts with the wine sample for chemical reaction to produce chemiluminescence;

[0073] (4), the condenser mirror system 4 receives the luminous signal, the condenser mirror system 4 converges the light energy to the collimator mirror 5, and the collimator mirror 5 converges to the receiving port of the optical...

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Abstract

The invention provides a method for detecting the content of sulfite in a wine by using an ozone oxidation luminescence spectrum. The method can be used for detecting the content of sulfite in the wine, solves the disadvantages of complex detection process, interference of pretreatment to the free state, large error and the like, and is a new method. The detection method comprises the following steps: carrying out statistic analysis on the ozone oxidation luminescence spectrum of the wine by using a detection device to obtain the wine spectrum and basic data of the sulfite content, detecting the ozone oxidation luminescence spectrum of the wine by using the detection device, and comparing with the statistic analysis data to obtain the content of sulfite in the detected wine. The method for detecting the sulfite content of the wine has the advantages of simple operation, fast analysis speed and no pollution.

Description

technical field [0001] The invention relates to the technical field of chemical oxidation luminescence spectrum, spectral analysis processing and sulfite analysis in wine, in particular to a method for detecting sulfite content in wine by using ozone oxidative luminescence spectrum. Background technique [0002] Wine is an alcoholic beverage made from grapes through fermentation and processing, and belongs to fermented wine. Winemakers have long added sulfites to their wines. Sulfite has the effect of killing bacteria on the surface of grape skins. It is also an antioxidant that protects the natural fruit characteristics of the wine while preventing the wine from aging. There is a certain amount of free sulfur dioxide in wine (sulfite is the way that wine exists, and sulfur dioxide is the final indicator in the detection method, both refer to sulfite, the same below), which can effectively inhibit the growth and reproduction of bacteria and protect The wine is not oxidized...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N21/25
Inventor 侯广利张颖颖刘冬彦张颖汤永佐张述伟刘岩王洪亮曹煊曹璐张婷郭翠莲
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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