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Method for rapidly detecting aflatoxin

A kind of aflatoxin, rapid technology, applied in the direction of measuring devices, instruments, fluorescence/phosphorescence, etc., can solve the problems of impaired immune function of offspring, affecting the development of the immune system, etc., and achieve stable and reliable concentration values, convenient use, and signal-to-noise Higher effect

Inactive Publication Date: 2019-09-17
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

The toxicity of aflatoxin can even be transmitted from the mother to the offspring, affecting the development of the immune system of the offspring during the embryonic period, resulting in impaired immune function of the offspring

Method used

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  • Method for rapidly detecting aflatoxin
  • Method for rapidly detecting aflatoxin

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Embodiment Construction

[0013] The invention discloses a method for rapidly detecting aflatoxin, and the following examples describe the technical solution of the invention, but the scope of protection is not limited to the description.

[0014] Such as figure 1 The aflatoxin detection device shown includes an excitation light source 2 , an optical analysis module 3 , a photoelectric converter 4 , and a signal processing and display module 5 . The excitation light emitted by the excitation light source 2 is spatially filtered by the aperture 31, and then blocked by the notch filter 32 to reflect the excitation light to the sample 1, and the weak excitation light transmitted through the notch filter 32 The light is received and detected by the photoelectric converter 41; the aflatoxin in the tested sample 1 is excited to emit fluorescence in the visible light band, and the fluorescence returns along the incident path of the excitation light, and the beam shaping element 34 adjusts and controls the dir...

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Abstract

The invention discloses a method for rapidly detecting aflatoxin. The method comprises an excitation light source, an optical analysis module, a photoelectric converter, and a signal processing and display module. According to the optical analysis module, through design that excitation light and fluorescent light are common in optical path, the whole system is miniaturized, and through proportional fluorescent intensity detection, fluorescence intensity of the aflatoxin is stable, and a signal to noise ratio is high.

Description

technical field [0001] The invention relates to the field of food safety, in particular to a small-scale aflatoxin detection device for rapidly detecting aflatoxin in food by utilizing the fluorescence characteristics of the aflatoxin. Background technique [0002] Aflatoxins are metabolites of molds such as Aspergillus flavus, which are very common in naturally contaminated food. Aflatoxin B1 is the most toxic natural substance known, which can induce liver cancer and is also toxic to other human systems. Aflatoxin toxicity can even be transmitted from the mother to the offspring, affecting the development of the immune system of the offspring during the embryonic period, resulting in impaired immune function of the offspring. Because aflatoxins are widely present in food, it is important to detect them quickly and in a timely manner. The detection of aflatoxin in food in daily life can effectively reduce the irreversible physical damage caused by accidental ingestion. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
CPCG01N21/6402
Inventor 张巍巍万璐王嘉豪张志敏龚勇清史久林何兴道
Owner NANCHANG HANGKONG UNIVERSITY