Reagent for fast identifying Wen county iron stick yam and identification method thereof

Abstract

The invention discloses a reagent for fast identifying Wen county iron stick yam and an identification method thereof. The reagent is a glucose identification reagent; the identification reagent and glucose take chromogenic reaction. The identification reagent is alkaline buffer liquid containing water-soluble colorless tetrazolium salt. The water-soluble colorless tetrazolium salt is one of materials from red tetrazolium, blue tetrazolium, tetrazolium violet and neotetrazolium chloride. According to the characteristic that the content of glucose and fructose in the Wen county iron stick yam is small, the identification reagent capable of taking chromogenic reaction with glucose is used for identification; if the color development occurs, the result shows that the iron stick yam to be tested is not the Wen county iron stick yam; if the color development does not occur, the result shows that the iron stick yam to be tested is the Wen county iron stick yam. Compared with the prior art, the reagent and the identification method have the advantages that whether the yam is the Wen county iron stick yam or not can be fast identified; the operation is simple.

Description

technical field [0001] The invention relates to the technical field of crop detection, in particular to a reagent for rapidly identifying Wenxian Tiebang yam and an identification method thereof. Background technique [0002] Tiegu yam is a variety of yam, and Tiegu yam is the "extreme product" in Huai yam. According to the national standard "Geographical Indication Products Huai Yam (GB\T20351-2006)", it is a product of origin protected by the state. It is stipulated as The geographical range between 34.48 to 35.30 north latitude and 112.02 to 113.38 east longitude, that is, within the administrative jurisdiction of Jiaozuo, Henan Province, is recorded in "Wen County Chronicles" and "Agronomy Series" in the Qing Dynasty. It is valuable in food and medicine. . The iron stick yam has been applied by Jiaozuo as a national protected product of origin, and the place of origin is Wen County, Jiaozuo. [0003] The price of authentic Wenxian Tiegun yam is about 26 yuan per kilogr...

AI Technical Summary

Problems solved by technology

[0005] The above-mentioned detection methods are highly subjective. Some counterfeit iron stick yams, such as iron stick varieties grown in other places, and some similar to iron sticks such as Xi Shi, chicken skin rough, and small white mouth, etc., even experienced drug farmers cannot accurately identify them. At present, there is no method for accurate identification through instruments or rapid detection reagents.

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