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Detecting liquid for identifying irridiation treatment of rice grain and using method

A technology for detecting liquids and grains, applied in the directions of measuring devices, flow characteristics, instruments, etc., can solve the problems of lack of system, inconvenient operation, and undiscovered rice and grain irradiation detection, and achieve a simple, fast, low-cost, accurate detection method. high sex effect

Inactive Publication Date: 2006-08-09
浙江省技术物理应用研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still many, many problems in the above detection methods, especially the need for large-scale instruments and equipment, which is expensive and inconvenient to operate, and can only be carried out in large-scale scientific research units.
So far, there is a lack of systematic methods for rice grain irradiation detection, and a simple and reliable method that can quickly detect whether rice grains have been irradiated without a control sample has not been found.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The components of the detection solution and their weight percent contents are: 4% acetic acid, 5% propionic acid, 5% oxalic acid, and the balance is distilled water. The components are taken in proportion, mixed at room temperature, and the pH is adjusted to 5 with a sulfuric acid solution with a mass concentration of 5%.

[0018] Take by weighing two parts of the irradiated late rice grains and grind them into 100 mesh rice flour, each part of 10 grams, and pack into two jars (Φ35*50cm) respectively. Wherein, add 30 milliliters of detection liquids in a jar, add 30 milliliters of distilled waters in another jar, carry out 10 minutes cooking viscosity spectrum detections on the viscometer after stirring evenly. Results The viscosity spectrum curve of rice added with testing solution was higher than that of rice added with distilled water, indicating that the tested rice had been irradiated, and the judgment result was consistent with the facts.

Embodiment 2

[0020] Take by weighing two parts of non-irradiated late rice grains and grind into 100 mesh rice flour, each part of 10 grams, and pack into two jars (Φ35*50cm) respectively. Wherein, add 30 milliliters with the detection solution of embodiment 1 in a tank, add 30 milliliters of distilled waters in another tank, after stirring, carry out 10 minutes cooking viscosity spectrum detections on the viscometer. Results The viscosity spectrum curve of rice added with test solution was lower than that of rice added with distilled water, indicating that the tested rice had not been irradiated, and the judgment result was consistent with the facts.

Embodiment 3

[0022] The components and weight percentages of the detection solution are: 6% acetic acid, 15% propionic acid, 12% oxalic acid, and the balance is distilled water. The components are taken in proportion, mixed at room temperature, and the pH is adjusted to 2 with a sulfuric acid solution with a mass concentration of 5%.

[0023] Take by weighing two parts of irradiated early rice grains and grind into 100 mesh rice flour, each part of 10 grams, and pack into two tanks (Φ35*50cm) respectively. Wherein, add 30 milliliters of detection liquids in a jar, add 30 milliliters of distilled waters in another jar, carry out 10 minutes boiling viscosity spectrum detections on the viscometer after stirring evenly. Results The viscosity spectrum curve of rice added with testing solution was higher than that of rice added with distilled water, indicating that the tested rice had been irradiated, and the judgment result was consistent with the facts.

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PUM

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Abstract

Present invention discloses a detection liquid for detecting irradiation of rice and grain foodstuff and use method. Detecting liquid is composed of following weight percentage compositions with pH value 2-5, acetic acid 4-6 per cent, propionic acid 5-15 per cent, oxalic acid 7-12 per cent, the others being distilled water. Detection method as follows: taking two equiponderant rice and grain powder respectively loading in two tanks, wherein adding detecting liquid in one tank adding distilled water in another tank, after uniformly stirring to proceed cooking-steaming viscosity spectra comparison, if the viscosity spectra curve of rice and grain added with detecting liquid being higher than that of distilled water, then judging it being processed by irradiation, otherwise judging being not processed by irradiation. Said invented detecting has low cost, simple configuring technology, can fast identify any kind of not gelatinized starch foodstuff whether being processed by irradiation with simple, fast and high accuracy.

Description

technical field [0001] The invention relates to a detection liquid for identifying rice grains irradiated and a method for using the same. Background technique [0002] Food irradiation technology can be applied to all agricultural and sideline products, medical and sanitary products, etc. Its main purpose is to sterilize, kill insects and inhibit plant germination through cobalt-60γ rays. Due to the superiority of irradiated food in reducing the occurrence of food-borne diseases, reducing post-production loss of agricultural products, and prolonging the shelf life of food, it has been recognized by more and more countries, governments and industrial sectors. Irradiation of rice grains is mainly to kill pathogenic microorganisms and pests in rice grains, prevent mildew during storage, and effectively replace chemical methods. Before the present invention was proposed, the European Community united countries in the world to detect irradiated food. The methods used usually in...

Claims

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Application Information

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IPC IPC(8): G01N11/00
Inventor 傅俊杰包劲松刘亚建金祚献
Owner 浙江省技术物理应用研究所
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