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Method for identifying stove-dried foods or medicines

An identification method and food technology, applied in Raman scattering, material excitation analysis, etc., can solve problems such as affecting the content of components and affecting human health, and achieve the effect of simple and accurate identification

Active Publication Date: 2016-07-27
NUCTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Sulfur dioxide can also interact with active ingredients in medicinal materials and affect the content of related ingredients. More importantly, food and drugs will bring some harmful substances to the human body after sulfur fumigation, which will affect human health.

Method used

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  • Method for identifying stove-dried foods or medicines
  • Method for identifying stove-dried foods or medicines
  • Method for identifying stove-dried foods or medicines

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Embodiment Construction

[0039] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, but should not be construed as a limitation of the present invention.

[0040] Raman spectroscopy is a kind of molecular vibration spectrum, which can reflect the fingerprint characteristics of molecules and can be used for the detection of substances. Sulfur dioxide dissolves in water to form sulfurous acid, which has a Raman characteristic spectrum. By detecting the Raman spectrum of the food or drug solution to be tested, it can be determined whether sulfur dioxide remains in the food or drug to be tested, so as ...

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Abstract

The embodiment of the invention discloses a method for identifying stove-dried foods or medicines. The method comprises the following steps: (a) preprocessing a to-be-detected sample to form a to-be-detected sample extracting solution; (b) irradiating the to-be-detected sample extracting solution with exciting light, and collecting Raman scattering rays from the to-be-detected sample extracting solution; (c) acquiring a Raman spectrum curve of the to-be-detected sample extracting solution according to the collected Raman scattering rays; and (d) making comparison on the Raman spectrum curve and a reference Raman spectrum curve, so as to determine whether the to-be-detected sample contains sulfur dioxide residue. By virtue of the method, the stove-dried foods or medicines can be efficiently, simply, conveniently and accurately identified.

Description

technical field [0001] The invention relates to the technical field of food or medicine detection, in particular to a method for identifying sulfur-smoked food or medicine by using Raman spectrum technology. Background technique [0002] Sulfur-smoked foods, such as sulfur-smoked vermicelli, sulfur-smoked ginger, sulfur-smoked white fungus, etc., and sulfur-smoked medicines may cause serious food safety problems. The sulfur fumigation process of food or medicine is due to the fact that sulfur dioxide produced by sulfur combustion is a strong reducing agent, which can bleach and prevent some chemical reactions of discoloration, accelerate drying, and kill most bacteria, so sulfur fumigation The method is used to treat medicines, and some unscrupulous merchants even carry out sulfur fumigation on food for the purpose of improving the color of products. Sulfur dioxide can also interact with active ingredients in medicinal materials and affect the content of related ingredients...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 张建红王红球姜丽
Owner NUCTECH CO LTD
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