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Preparation of electrolytic solution and its use in electrochemical rapid detection of pepperocannin content

A technology of peppercornin and electrolytic solution, which is applied in the direction of material electrochemical variables, etc., can solve the problems of mixed solution turbidity, large background interference, poor conductivity, etc., and achieve the effect of short time required, long analysis time, and convenient online detection

Active Publication Date: 2021-10-12
JIANGSU UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the defects of the existing electrolytic solution formulas in the detection of the pepperanthin content in oily seasonings, such as turbidity, layering, poor conductivity, and large background interference, the present invention provides a method for the detection of pepperianin in oily seasoning A formulation of an electrolytic solution that can form a uniform and stable mixed solution with an oil-containing mixture and has good electrical conductivity

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  • Preparation of electrolytic solution and its use in electrochemical rapid detection of pepperocannin content
  • Preparation of electrolytic solution and its use in electrochemical rapid detection of pepperocannin content
  • Preparation of electrolytic solution and its use in electrochemical rapid detection of pepperocannin content

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Embodiment 1

[0043] (1) The preparation of the electrolytic solution consists of the following components: a polar solvent and a supporting electrolyte; the polar solvent is selected from 1,4-dioxane, and the supporting electrolyte is selected from PBS solution with a concentration of 0.1M; wherein 1, The volume ratio of 4-dioxane and PBS solution is 2:7, 3:6, 4:5, 5:4 and 6:3 respectively; the volume ratio of 1,4-dioxane and PBS solution is The abscissa and the corresponding peak current are taken as the ordinate to obtain the optimization result diagram of the electrolytic solution formula, such as figure 1 ,From figure 1 It can be seen that when the volume ratio of 1,4-dioxane and PBS solution is 5:4, the corresponding peak current is the highest, which is the optimal electrolytic solution formula;

[0044] (2) Preparation of Xanthanin mother liquor:

[0045] Accurately weigh samples of Zanthoxylum bungeanum oil and chafing dish bottom material, with a mass (w) of 50 g, and add them t...

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Abstract

The invention belongs to the technical field of detection in food, and in particular relates to the preparation of an electrolytic solution and its use for electrochemical rapid detection of the content of xanthanin; the method is as follows: firstly, an electrolytic solution is provided, which is composed of a polar solvent and a supporting electrolyte ; Then extract the peppercornin mother liquor of the sample, dilute it with electrolyte to obtain the solution to be tested, add α-SOH standard solution, and obtain a mixed solution; reconfigure the solution to be tested with equal concentration and volume, and add 2 times the volume of α-SOH standard solution , to obtain the mixed solution; repeating this many times, finally using the three-electrode system to detect the differential pulse voltammetry curve of the pepperonamide substance in the mixed solution respectively; There is no background interference during detection; in the specific detection process, it has the advantages of fast detection, sensitivity, simplicity, high measurement accuracy, short sample analysis time, low cost, and convenient online detection.

Description

technical field [0001] The invention belongs to the technical field of detection in food, and in particular relates to the preparation of an electrolytic solution and its use for electrochemical rapid detection of the content of xanthanin. Background technique [0002] Zanthoxylum bungeanum is a traditional condiment in my country. It is used directly or made into condiments such as pepper powder and pepper oil in the cooking process. Among them, Zanthoxylum bungeanum oil refers to the blended oil with fragrant and numb flavor obtained by soaking Zanthoxylum bungeanum in heated edible oil. Because of its convenience and strong numbness, it is widely used in Sichuan cuisine and cold dishes. In addition, the application of Zanthoxylum bungeanum in hot pot is also very common. The hot pot base is a compound condiment with rich ingredients and high oil content. In addition to pepper and pepper, ginger, garlic, star anise and other ingredients are often added during the frying p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/28G01N27/48
CPCG01N27/28G01N27/48
Inventor 邹小波孙晓霞赵镭张迪史波林
Owner JIANGSU UNIV
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