Method for rapidly identifying coffee adulteration based on Fourier transform near infrared spectroscopy

The invention discloses a method for rapidly identifying coffee adulteration based on Fourier transform near infrared spectroscopy. The method comprises the following steps: collecting the spectrum ofa sample, establishing a standard product (material spectrum) spectrum database, collecting the spectra of adulterated materials, establishing an adulterated material spectrum database, and performing first derivation and smoothing preprocessing on the collected spectral data; calculating the preprocessed spectrum by using an Adulterant Screen algorithm, and establishing an adulteration identification model; and identifying whether the coffee sample is adulterated or not by using the adulteration identification model. The Fourier transform near infrared spectroscopy coffee adulteration identification model can effectively and quickly identify the adulteration of Acai berry powder and barley in coffee, the minimum identification concentration of the Acai berry powder adulterated in the coffee sample is 2%, online