Method for judging soy sauce color grade through pigment standard colorimetric card

A technology of standard color comparison card and standard color card, which is applied in the field of judging the color level of soy sauce through the standard color comparison card of pigment, which can solve the problems of influence judgment, soy sauce color comparison, waste, etc., and achieve simple and convenient operation, quick observation and avoid waste Effect

Inactive Publication Date: 2016-04-20
FOSHAN HAITIAN GAOMING FLAVORING & FOOD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: (1) Each level of reference system needs to store a large number of products as standards, which causes waste and increases the difficulty of storage
(2) Due to the instability of soy sauce itself, even if it is stored at low temperature, its color will still change slowly, which will affect the judgment of the next batch
[0004] At the same time, there are also a small number of patents and literature reports in my country on the judgment of the color level of soy sauce. For example, the patent on the color of soy sauce invented by Wang Zhilin of Beijing Food Brewing Institute and related literature published in China mentioned that a variety of indicators are used. To make a color scale wi

Method used

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  • Method for judging soy sauce color grade through pigment standard colorimetric card
  • Method for judging soy sauce color grade through pigment standard colorimetric card
  • Method for judging soy sauce color grade through pigment standard colorimetric card

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Make soy sauce color card and determine the quality and color level of soy sauce in production.

[0035] 1), prepare corresponding mother liquor as follows: select plant carbon black to prepare black mother liquor, select allura red to prepare red mother liquor and select lemon yellow as yellow mother liquor.

[0036] 2), preparation of simulated soy sauce 1 color series standard system:

[0037] Series standard series I: plant carbon black mother liquor 8.828g, allura red mother liquor 8.352g and tartrazine mother liquor 4.537g, dilute to 100mL with water;

[0038] Color standard system II: plant carbon black mother liquor 9.037g, allura red mother liquor 8.699g and lemon yellow mother liquor 5.173g, dilute to 100mL with water;

[0039] Color standard system III: plant carbon black mother liquor 9.244g, allura red mother liquor 6.583g and tartrazine mother liquor 4.026g, dilute to 100mL with water;

[0040] Color standard system IV: plant carbon black mother liquor 6...

Embodiment 2

[0045] Make soy sauce color card and determine the quality and color level of soy sauce in production.

[0046] 1) Prepare corresponding mother liquors as follows: caramel mother liquor: 5.0g / 100mL, erythrosine mother liquor: 0.1g / 100mL and sunset yellow mother liquor: 1.0g / 100mL.

[0047] 2) Standard system for preparing simulated light soy sauce color series:

[0048] Color standard system Ⅰ: caramel mother liquor 5.981g, erythrosine mother liquor 5.89g and sunset yellow mother liquor 2.767g, dilute to 100mL with water;

[0049] Color Standard System II: Caramel mother liquor 6.187g, erythrosine mother liquor 6.237g and sunset yellow mother liquor 3.403g, dilute to 100mL with water;

[0050] Color Standard System III: Caramel mother liquor 6.394g, erythrosine mother liquor 6.583g and sunset yellow mother liquor 4.026g, dilute to 100mL with water;

[0051] Color standard system IV: caramel mother liquor 6.61g, erythrosine mother liquor 6.926g and sunset yellow mother liquor 4...

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Abstract

The invention discloses a method for judging soy sauce color grade through a pigment standard colorimetric card. The method comprises the following steps: 1) a pigment standard colorimetric card is prepared, and a standard colorimetric solution which is prepared from a dye and is used for colorimetric purpose is arranged in the pigment standard colorimetric card; and 2) colorimetric task is carried out: soy sauce and the solution in the pigment standard colorimetric card are undergo colorimetric test to determine color quality of the soy sauce. By preparing the pigment standard colorimetric card provide with the standard colorimetric solution and through colorimetric method of colors of the solution in the colorimetric card and the soy sauce, the purpose of determining color quality of soy sauce is achieved. By the method, dilution is not required, and color quality of soy sauce can be determined through visual and fast observation. In addition, the method is simple and convenient to operate and has high efficiency and accuracy. Meanwhile, the colorimetric card can be repeatedly used for colorimetric purpose so as to avoid unnecessary waste.

Description

technical field [0001] The invention relates to the color evaluation of soy sauce, in particular to a method for judging the color grade of soy sauce by means of a pigment standard color card. Background technique [0002] Soy sauce is a traditional brewing product in my country. It has a history of more than 2,000 years. More than 16 billion yuan. According to national regulations, soy sauce is divided into grades according to the content of amino acid nitrogen, total nitrogen and soluble salt-free solids, which are divided into first, second and third grades. However, the country has not issued a guiding evaluation system or reference evaluation standard for the color of soy sauce. Each manufacturer has its own color evaluation system. Because different manufacturers have different evaluation systems and reference systems, the color span of products of the same level circulated on the market Larger, leading to a situation where the same type of soy sauce is mixed in color...

Claims

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Application Information

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IPC IPC(8): G01N21/29
CPCG01N21/293
Inventor 吴国权李贤信童星
Owner FOSHAN HAITIAN GAOMING FLAVORING & FOOD
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