Method for quickly and nondestructively distinguishing between real and fake bird's nests

Abstract

The invention discloses a method for quickly and nondestructively distinguishing between real and fake bird's nests. The method is characterized in that Raman spectrometry is adopted; pretreatment is not required to be performed on samples; technical parameters are directly set; Raman spectra is collected through a Raman spectrometer; whether characteristic peaks of bird's nests appear or not is found and the quantity is determined. If 3 to 6 characteristic peaks of bird's nests appear and other obvious impure peaks do not exist, the samples are manifested to be real bird's nests; if 3 to 6 characteristic peaks of bird's nests appear and other obvious impure peaks exist, the samples are manifested to be fake bird's nests; the adulterate amount is roughly judged according to peak height ratio of the impure peaks and the characteristic peaks of the bird's nests, the higher the ratio is, the lower the bird's nest content is; if 0 to 2 characteristic peaks of the bird's nests appear, the samples do not contain bird's nest components. The method has the characteristics that the samples are not required to be destroyed, the method is simple to operate, discrimination speed is high, the accuracy is high, and the like, is applied to the discrimination of large-scale bird's nest samples, and is novel.

Description

technical field [0001] The invention relates to the identification field of bird's nest, in particular to a rapid and nondestructive identification method for bird's nest based on Raman spectrum. Background technique [0002] Due to the rich nutritional and medicinal value of bird's nest, the demand for bird's nest has increased, and there is a possibility of counterfeiting in the market. The adulteration phenomenon mainly includes bleached bird's nest, glued bird's nest, dyed bird's nest, seaweed bird's nest, water-containing bird's nest and substitute bird's nest. At present, the methods for identifying the authenticity of bird's nest mainly include empirical identification, microscopic identification, spectroscopy, chromatography, enzyme-linked immunoassay, electrophoresis, and nuclear magnetic resonance. According to the physical and chemical properties of the bird's nest, the empirical identification method can be used to judge the authenticity of the bird's nest from ...

AI Technical Summary

Problems solved by technology

There are still some defects in these methods, such as cumbersome pre-processing, low accuracy, and long time-consuming problems. There is an urgent need for a fast non-destructive testing method to be applied to the bird's nest authenticity identification system.

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