Method for rapidly, qualitatively and quantitatively detecting five types of edible starch adulteration

A technology for quantitative detection of edible starch, which is applied in the direction of material analysis by measuring secondary emissions, can solve the problems of time-consuming, complicated operation steps, and inaccurate judgment of adulteration ratio, and achieve the effect of accurate identification of adulteration and simple operation
CN104990945AInactive Publication Date: 2015-10-21HENAN UNIVERSITY OF TECHNOLOGY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN UNIVERSITY OF TECHNOLOGY
Publication Date
2015-10-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A method for rapidly, qualitatively and quantitatively detecting five types of edible starch adulteration includes the following steps of firstly, obtaining the starch grain type through a scanning electronic endoscope; secondly, obtaining the linear regression analysis equation of the peak value viscosity and the adulteration proportions of starch of different adulteration proportions through a rapid viscosity analyzer; thirdly, qualitatively and quantitatively judging edible starch adulteration. The method has the advantages that operation is easy, adulteration can be rapidly and accurately recognized at a low price, and the adulteration proportion can be rapidly judged. Experiments prove that for five types of edible starch adulteration including adulteration of pueraria starch, lotus root starch, lotus seed starch, foxnut starch and canna starch, the corn starch proportion ranges from 0% to 50%, and the deviation of accurate adulteration proportion judgment is smaller than + / -1%.
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Description

technical field

[0001] The invention relates to a method for detecting the adulteration of edible starch, in particular to a method for rapidly qualitatively and quantitatively detecting the adulteration of five kinds of edible starch. Background technique

[0002] With the development of its production and processing trade in China, there are more and more various powdered foods. Due to the characteristics of its shape and structure, adulteration in edible starch is becoming more and more rampant. It has caused serious harm and disrupted the market order; at the same time, it has caused irreparable economic losses to law-abiding producers. my country has formulated a series of inspection methods and standards for the use of prohibited additives in edible starches. However, these standards are powerless against the adulteration of different types of edible starches. Corn starch, sweet potato starch or potato starch, etc., both belong to starch, and their appearance and physi...

Claims

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