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Rice detection reagent and rice detection box

A technology for detecting reagents and detection boxes, which is applied in the direction of material analysis through observation of the influence of chemical indicators, analysis through chemical reactions of materials, and analysis using chemical indicators. It can solve the problem of inability to accurately determine grain metabolism. High practical value, accurate detection technical indicators and fast detection speed

Inactive Publication Date: 2004-11-10
盛宏达
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can only be completed in the laboratory, which is not conducive to on-site detection. If the on-site detection needs to be completed in a laboratory
This is not conducive to the management of grain in all aspects of production, purchase, transportation, storage, processing, sales and import.
When testing reagents, it is difficult to find standard new rice, semi-old rice and old rice as controls to compare with the tested grains, and the actual color of most of the tested grains is not the standard green, yellow and red colors, Unable to accurately determine grain staleness
Reagents for grain detection must be prepared in advance, and the prepared detection reagents should not be stored for a long time, which will increase the cost of detection

Method used

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  • Rice detection reagent and rice detection box
  • Rice detection reagent and rice detection box
  • Rice detection reagent and rice detection box

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1 (low dosage)

[0015] 1 gram is 1 part: 0.5 gram of methyl red, 0.5 gram of bromothymol blue, 300 milliliters of 95% ethanol, 2000 milliliters of purified water, 1.5 grams of potassium sorbate, and an appropriate amount of sodium hydroxide to form a meter measuring reagent. Dissolve 0.5 g of methyl red and 0.5 g of bromothymol blue in 300 ml of 95% ethanol, dilute with 2000 ml of pure water, add 1.5 g of potassium sorbate, adjust the pH value to 7.0 with an appropriate amount of sodium hydroxide solution to make measuring rice detection reagents such as figure 1 shown.

Embodiment 2

[0016] Embodiment 2 (medium dose)

[0017] 0.75 grams of methyl red, 0.75 grams of bromothymol blue, 450 milliliters of 95% ethanol, 2500 milliliters of purified water, 2.25 grams of potassium sorbate, and an appropriate amount of sodium hydroxide are used to form the meter measuring reagent. Dissolve 0.75 grams of methyl red and 0.75 grams of bromothymol blue in 450 milliliters of 95% ethanol, add 2.25 grams of potassium sorbate after diluting with 2500 milliliters of pure water, and adjust the pH value to 7.0 with an appropriate amount of sodium hydroxide solution to make measuring rice detection reagents such as figure 1 shown.

Embodiment 3

[0018] Embodiment 3 (high dosage)

[0019] 1 gram of methyl red, 1 gram of bromothymol blue, 600 milliliters of 95% ethanol, 3000 milliliters of purified water, 3 grams of potassium sorbate, and an appropriate amount of sodium hydroxide are used to form a meter measuring reagent. Dissolve 1 gram of methyl red and 1 gram of bromothymol blue in 600 milliliters of 95% ethanol, add 3 grams of potassium sorbate after diluting with 3000 milliliters of pure water, and adjust the pH value to 7.0 with an appropriate amount of sodium hydroxide solution to make measuring rice detection reagents such as figure 1 shown.

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Abstract

The rice detecting reagent and the rice detecting box of the present invention are used to detect the newness of grains. The rice detecting box has a detecting table inside it and has the advantages of simple detection process, fast detection speed, accurate detection results and it may be used for the inspector and consumer to perform in-situ detection. The rice detecting reagent is easy to prepare, long in effective period and practical. The present invention is especially suitable for detection of rice.

Description

technical field [0001] The invention relates to a rice-measuring detection reagent and a rice-measuring detection box for detecting the freshness degree of grains. Background technique [0002] The grains are continuously aged during storage, and the taste of the aged grains is not only bad, but also its nutritional value is also greatly reduced. Some unscrupulous traders often use old rice as new rice, or mix old rice with new rice, or even mix industrial oil with old rice to pretend to be new rice. At present, most of the methods for detecting the freshness of grains are detected by preparing reagents. The method of reagent detection is discussed in the book "Detection and Identification of Fake and Inferior Foods" (compiled by Zhu Yongyi, Zhou Zhanming, etc., Agricultural Press, 1992): 1 gram each of methyl red and bromothymol blue, add 500 milliliters of 95% ethanol to dissolve and add 100ml of purified water, dilute 10 times with purified water before testing. Take t...

Claims

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Application Information

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IPC IPC(8): G01N21/78G01N31/22
Inventor 盛宏达
Owner 盛宏达