Chemosensing hydrogel for the detection of biogenic amines

A technology of biogenic amines and hydrogels, which is applied in the direction of using chemical indicators to analyze, analyzing by making materials undergo chemical reactions, and testing the existence of gases, etc. It can solve the problem of expensive and cumbersome use and maintenance of gas chromatographic analysis. Not easy to get or operate etc.

Active Publication Date: 2017-08-11
CITY UNIVERSITY OF HONG KONG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, GC analysis is expensive and cumbersome to use and maintain
Other quantitative and semiquantitative screening tools use molecularly imprinted polymers and antibody-based immunoassays, however these tools are not readily accessible or operable to the average consumer

Method used

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  • Chemosensing hydrogel for the detection of biogenic amines
  • Chemosensing hydrogel for the detection of biogenic amines
  • Chemosensing hydrogel for the detection of biogenic amines

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[0020] The various embodiments are described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are given in order to provide a thorough understanding of various embodiments. It may be evident, however, that various embodiments may be practiced without these specific details. In other instances, well-known structures and components are shown in block diagram form in order to facilitate describing the various embodiments.

[0021] By way of introduction, the subject matter described herein provides low-cost, self-contained colorimetric chemosensing hydrogel materials that undergo a color change from green to orange / red upon exposure to vapors of biogenic amines. The colorimetric detection is selective, sensitive and irreversible. No contact is required between the sensing hydrogel and the food, which rules out the possibility of food...

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Abstract

A chemosensing hydrogel is provided that undergoes a colorimetric reaction in response to the detection of a biogenic amine vapor, such as a biogenic amine vapor that is a by-product resulting from food spoilage. In an embodiment, an apparatus for detection of biogenic amines, is provided that includes a hydrogel having a bimetallic iron(II)-iron(III) complex disposed within the hydrogel, wherein the hydrogel is configured to change from a first color to a second color in response to exposure to a biogenic amine.

Description

technical field [0001] The present application relates generally to the detection of food spoilage, and more specifically to chemosensing hydrogels for the detection of biogenic amine by-products produced by food spoilage. Background technique [0002] It is known that a series of biogenic amines, such as histamine, cadaverine, putrescine, spermidine, and tyramine, are produced during food spoilage, especially meat, due to microbial-mediated protein degradation. Excessive biogenic amines in foods indicate food breakdown, which leads to poor quality and hygiene problems, and can eventually lead to food poisoning. For example, histamine produced by carrion is highly toxic and can cause food poisoning in scombroids. [0003] At present, gas chromatography analysis is the main analytical instrument for the quantitative determination of biogenic amines in food. However, gas chromatographic analysis is expensive and cumbersome to use and maintain. Other quantitative and semiqua...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78G01N2021/775G01N31/22C07F15/02G01N33/0047G01N33/0054G01N33/12Y02A50/20G01N21/783G01N31/223
Inventor 林汉华
Owner CITY UNIVERSITY OF HONG KONG
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