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Detection reagent for nitrate in hot pickled tuber mustard and detection method thereof

A technology of nitrite and detection reagents, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions, which can solve problems such as the limitation of nitrite content and achieve high accuracy , the effect of high detection efficiency

Inactive Publication Date: 2015-10-28
DONGCHEN LEADER TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are strict restrictions on the content of nitrite in food internationally

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Detectic nitrite test agent in the mustard, according to the weight portion, including the following components: 12 parts of methanes, 12 parts of N-(1-cymbal) acelamine hydrochloride, 5 parts of sulfa, 3 sodium acetate, 3 parts, 3 parts of sodium acetate.1 part of pyrone, sodium sodium diacene, 5 sodium chloride, 10 parts of oxalic acid and 80 water.

[0017] Mix the above components evenly, that is, the nitrite detection agent in the mustard of this embodiment.

[0018] The detection method of the above nitrite detection reagent, including the following steps: chop the mustard after squeezing, remove the juice and dilute it with water 5 times, add 2 drops of nitrite test agent, stir for 2min, observe the color change of the solution,And record time.

Embodiment 2

[0020] Detectic nitrite test agent in the mustard, according to the weight composition, including the following components: 14 parts of methanes, 13 parts of N-(1-cymbal) acetate hydrochloride, 6 parts of sulfa, and 4 sodium acetate.Two acetone, 2 parts of sodium dysulfine, 7 parts of inorganic salt, 12 parts of oxalic acid and 88 water.

[0021] Mix the above components evenly, that is, the nitrite detection agent in the mustard of this embodiment.

[0022] The detection method of the above nitrite detection reagent, including the following steps: chop the mustard and squeeze, remove the juice and dilute it with water 6 times, add 2 drops of nitrite test agent, stir 2.5min, observe the color change of the solution color changeAnd record time.

Embodiment 3

[0024] Detectic nitrite test agent in the mustard, according to the weight composition, including the following components: 14 parts of methanes, 13 parts of N-(1-cymbal) acetate hydrochloride, 6 parts of sulfa, and 4 sodium acetate.Two acetone, 2 parts of sodium dihyne sulfonate, 7 parts of inorganic salt, 12 parts of oxalic acid and 90 water.

[0025] Mix the above components evenly, that is, the nitrite detection agent in the mustard of this embodiment.

[0026] The detection method of the above nitrite detection reagent, including the following steps: chop the mustard after squeezing, remove the juice and dilute 7 times with water, add 2.5 drops of nitrite test agent, stir 2.5min, observe the color change of the solution color changeAnd record time.

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Abstract

The invention provides a detection reagent for nitrate in hot pickled tuber mustard and a detection method thereof. The detection reagent comprises, by weight, the following components of 12-16 parts of toluidine blue, 12-16 parts of N-(1-naphthyl) ethylenediamine hydrochloride, 5-8 parts of sulfanilamide, 3-5 parts of sodium acetate, 1-4 parts of acetone, 1-3 parts of sodium xylene sulfonate, 5-10 parts of inorganic salt, 10-15 parts of oxalic acid and 80-100 parts of water. The detection method comprises the steps that the hot pickled tuber mustard is chopped and then squeezed, after dregs are removed, juice is taken and diluted with water for 5-10 times, 2-3 drops of the nitrate detection reagent is added in the juice and stirred for 2-3 min, and the changes of the solution color is observed. Compared with the prior art, the nitrate detection reagent can more quickly detect whether the nitrate content exceeds the standard, the precision rate of content measuring is high, and the higher detection efficiency is achieved.

Description

Technical field [0001] The present invention involves the field of detection reagents and specifically involves a nitrite detection reagent in a mustard. Background technique [0002] As a common side dish, mustard is stored with stems with mustard and storage.In the process of pickling, because certain microorganisms that are naturally attached to the surface of the vegetables will ferment, nitrate in vegetables will be restored to nitrite.Nitrite itself is not carcinogenic, but it can react with various amino compounds under cooking or other conditions to produce carcinogenic N-nitrobit compounds, such as nitrosamine.Nitamines are a kind of strong carcinogen internationally recognized internationally.In addition, nitrite can cause high -speed rail hemoglobin.Therefore, internationally, there is strict restrictions on the content of nitrite in food.The daily daily dietary intake of the nitrite of Nitrite of the Food and Agriculture Organization of the United Nations and the Wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 熊开胜张海防谢建庭
Owner DONGCHEN LEADER TESTING
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