Detection method for sodium formaldehydesulfoxylate in compound food additive

A technology of sodium formaldehyde sulfoxylate and food additives, which is applied in the field of detection of sodium formaldehyde sulfoxylate in compound food additives, can solve the limitation of sodium formaldehyde sulfoxylate supervision and inspection in wheat flour, and the lack of comparability of test results , many processing procedures and other issues, to achieve the effect of simple and easy detection method, good economic and social benefits, and convenient operation

Inactive Publication Date: 2018-03-16
ANHUI DANYAN FOOD
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Problems solved by technology

[0005] At present, there is no national standard method for detecting formaldehyde sulfoxylate sodium. The methods reported in the literature have many pretreatment processes and chaotic conditions, and the detection results of different methods lack comparability; they cannot be used as standard methods, which seriously restricts formaldehyde in wheat flour. Supervision and inspection of sodium bisulfite project

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  • Detection method for sodium formaldehydesulfoxylate in compound food additive

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Embodiment Construction

[0026] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0027] see figure 1 , the present invention provides a kind of technical scheme: a kind of detection method of sodium formaldehyde sulfoxylate in compound food additive, described detection method comprises the following steps:

[0028] Step 1: Prepare a solution; weigh 20 grams of the compound food additive into a glass bottle, add 100 milliliters of distilled water and stir and mix to obtain a solution of the compound food additive;

[0029] Step 2: Collect the filtrate; ultrasonically extract the solution of the compound food additive at 1800 Hz for 8-12 minutes and filter, and collect the filtrate for later use;

[0030] Step 3: collect the distillate; place the filtrate obtained in step 2 to room temperature naturally, carry out steam distil...

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Abstract

The invention relates to a detection method for sodium formaldehydesulfoxylate in a compound food additive. The detection method comprises: preparing a dissolving liquid; collecting a filtrate; collecting a distillate; preparing a detection solution; adding an ammonium ferric sulfate dodecahydrate solution; adding a sodium hydroxide solution; adding a 2,4-dinitrophenylhydrazine solution; adding apotassium periodate solution; and carrying out water bath heating, and extracting. According to the present invention, with the detection method, whether the food additive contains sodium formaldehydesulfoxylate can be effectively detected, the cost is low, the detection process does not cause pollution to the environment, the detection result is accurate, and the method has good economic and social benefits; and the detection method is simple and is easy to perform, is suitable for routine testing, provides the important technical support for food safety monitoring, and has wide application prospects in additive testing.

Description

technical field [0001] The invention relates to the technical field of food safety detection, in particular to a method for detecting sodium formaldehyde sulfoxylate in compound food additives. Background technique [0002] Since food has very different requirements for its raw materials, it is necessary to adjust the process during processing and use food additives to further improve the quality of food. Food additives can prevent and delay the aging of food, so they can meet different mechanical processing properties, and then meet the needs of different consumers for food in terms of color, aroma, taste, and shape. However, with the extensive use of food additives, the safety problems of its use in food have emerged, such as the excessive use of additives and the addition of harmful chemicals and so on. [0003] Sodium formaldehyde sulfoxylate is made by combining formaldehyde with sodium bisulfite and then reducing it. It is a chemical commonly used in dyeing technology...

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Application Information

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IPC IPC(8): G01N30/02
CPCG01N30/02
Inventor 赵兰清
Owner ANHUI DANYAN FOOD
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