Detection Technology of Aflatoxin Content Based on Smart Phone

Abstract

Grain and agricultural products contaminated by AFTB1 have a strong carcinogenic effect that may damage people's health. Rapid and effective screening of agricultural products contaminated by AFTB1 is an effective measure to ensure food safety and body health. This paper analyzes the fluorescence characteristics of AFTB1, and designs a smart phone detection system composed of portable optical device and smart phone detection software. The portable optical device uses ultraviolet light LED as an excitation source to excite fluorescence, and uses smart phone's CMOS image sensor to collect fluorescence. It is convenient to connect with the CMOS image sensor with the help of portable optical device, thereby realizing image storage, processing and transfer of the observed object. The software developed for image acquisition and data processing on the smart phone can analyze and process the fluorescence image of AFTB1, obtain the fluorescence concentration of AFTB1 measured, and display the AFB1 content data, to achieve quantitative detection of AFB1.