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Test paper, preparation method and application thereof, and fresh-keeping effect test method

A technology of effect testing and test paper, which is applied in the direction of measuring devices, analysis through chemical reactions of materials, instruments, etc., can solve the problems of waste of resources, inconvenient reliability, etc.

Active Publication Date: 2022-04-05
CHINA NAT INST OF STANDARDIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using vegetables to detect fresh-keeping effects has the defects of waste of resources, inconvenience and low reliability.

Method used

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  • Test paper, preparation method and application thereof, and fresh-keeping effect test method
  • Test paper, preparation method and application thereof, and fresh-keeping effect test method
  • Test paper, preparation method and application thereof, and fresh-keeping effect test method

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preparation example Construction

[0036] In another aspect of the present invention, the present invention provides a method for preparing the aforementioned test paper, the preparation method comprising: dispersing anthocyanins in a substrate to obtain the test paper. Therefore, the operation is simple, convenient and easy to realize.

[0037] In some embodiments of the present invention, the dispersing the anthocyanin in the substrate comprises: drying the substrate after immersing the substrate in the anthocyanin solution.

[0038] When it needs to be explained, the above-mentioned substrates and anthocyanins are consistent with the previous description, and will not be repeated here.

[0039] In some embodiments of the present invention, the substrate is immersed in the anthocyanin solution under an inert gas atmosphere. Thus, the anthocyanins can be effectively prevented from being oxidized, so that the reliability of the test paper for measuring the preservation effect is better.

[0040] It should be ...

Embodiment 1

[0071] The test paper includes a pure cotton paper substrate and anthocyanins dispersed in the substrate, and the mass ratio of geranium, cyanidin, mallowin, delphinidin, paeoniflorin and petunia in the anthocyanins is 5 :1:1:1:1:1.

Embodiment 2

[0073] The test paper includes a pure cotton paper substrate and anthocyanins dispersed in the substrate, and the mass ratio of geranium, cyanidin, mallowin, delphinidin, paeoniflorin and petunia in the anthocyanins is 4 :2:2:2:1:1.

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Abstract

The invention provides a test paper, its preparation method, application and fresh-keeping effect test method, and relates to the technical field of fresh-keeping effect test. The test paper includes: a base material, and anthocyanins dispersed in the base material, wherein the Described anthocyanin comprises mass ratio and is (1-5): (1-2): (1-2): (1-2): (1-2): (1-5) geranium, cornflower Malvacrin, Delphinidin, Paeoniflorin and Petunia. Using the test paper to detect the preservation effect is low in cost, relatively convenient, and relatively high in reliability.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping effect testing, in particular to a test paper, a preparation method and application thereof, and a fresh-keeping effect testing method. Background technique [0002] In recent years, with the competition in the production and sales of home appliances, for example, the fresh-keeping function of refrigerators has been deeply explored by major manufacturers, such as "zero-degree biological fresh-keeping", "metal uniform cooling", "frequency conversion air-cooled fresh-keeping" and other fresh-keeping methods have rapidly appeared in consumer perspective. At present, the means of testing the fresh-keeping effect of the above-mentioned fresh-keeping methods is to measure the water content, vitamin C (Vc) content and sensory index changes in the vegetables after placing the vegetables in the refrigerator for a period of time. However, using vegetables to detect fresh-keeping effects has the defec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78
CPCG01N21/78G01N21/77G01N2021/7759
Inventor 汪厚银赵镭史波林钟葵张璐璐何天鹏刘龙云
Owner CHINA NAT INST OF STANDARDIZATION