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Method for quantifying color of sample

A sample and color technology, applied in color measurement devices, color/spectral characteristic measurement, etc., can solve the problem of material color determination methods need to be improved, etc., and achieve the effect of a wide range of applications

Inactive Publication Date: 2014-11-12
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the color determination method of the material at this stage still needs to be improved.

Method used

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  • Method for quantifying color of sample
  • Method for quantifying color of sample
  • Method for quantifying color of sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Example 1: Determination of the effect of the amount of ascorbic acid added on the color protection and anti-browning effect of banana pulp

[0055] Follow the steps below to determine the effect of the amount of ascorbic acid added on the color protection and anti-browning effect of banana pulp:

[0056] 1. Sample preparation and processing:

[0057] Nine ripe, non-rotten and non-mechanically damaged Brazilian bananas are used as raw materials. Add water according to the ratio of solid to liquid 1:4, and add ascorbic acid 0, 0.05, 0.1, 0.2, 0.4, 0.8 mg / mL respectively, and beat through a beater. Measure 50mL of fruit pulp from different treatments and add them to transparent glass petri dishes with uniform bottom thickness and consistent specifications.

[0058] 2. Sample scanning:

[0059] Place the transparent glass Petri dish containing the pulp on the EPSON2480 scanner and cover it with white cardboard. Set the scanning mode to reflective document (professional...

Embodiment 2

[0064] Embodiment 2: the color quality assessment of clarified type chestnut beverage sample

[0065] With similar other products (standard reference product) as contrast, utilize the method for quantifying the color of sample of the present invention, carry out color quality evaluation to a kind of clarification type chestnut beverage newly developed, wherein evaluation steps are as follows:

[0066] 1. Obtain the color information data of the standard reference product:

[0067] First, measure 50mL of the standard reference product (commercially available clear liquid beverage), pour it into a transparent glass petri dish, place it on the EPSON2480 scanner, and cover the transparent glass petri dish with white cardboard;

[0068] Secondly, set the scanning mode of the EPSON2480 scanner to reflective document (professional mode), set the exposure type to automatic, set the image type to 24-bit full color, and set the resolution to 300dpi;

[0069] Next, make sure that the sc...

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PUM

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Abstract

The invention relates to method for quantifying the color of a sample, a method for determining color changes of the sample, and a method for comparing colors of multiple samples. The method for quantifying the color of the sample comprises the steps that the sample is scanned, so as to conveniently obtain scanned pictures of the sample; color information data of the scanned pictures are collected; and the color of the sample is quantified on the basis of the color information data of the scanned pictures. By utilizing the method for quantifying the color of the sample, the color of the sample can be determined rapidly, accurately and effectively; and the method for quantifying the color of the sample, which is disclosed by the invention, does not need special equipment, has the advantages of low equipment cost, objective and accurate data, wide application range and immediacy, and is simple to operate.

Description

technical field [0001] The invention relates to the measurement and control of color or browning in food processing, detection and analysis technology, as well as the technical fields requiring color control such as coating, printing, dyeing and academic research. In particular, the invention relates to methods of quantifying the color of a sample. More specifically, the present invention relates to methods of quantifying the color of a sample, methods of determining a change in the color of a sample, and methods of comparing the color of a plurality of samples. Background technique [0002] In the process of food processing and storage, the color of food needs to be monitored, otherwise it will affect the color and flavor of food, reduce the nutritional value of food, and even produce some harmful substances, posing a threat to food safety. Especially the browning of food has always been an important control and research object in the food field. In the fields of painting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/46G01N21/25
Inventor 王建中曲留柱王丰俊王文江蔺立杰
Owner BEIJING FORESTRY UNIVERSITY