Objective To develop a new method by using artificial neural network for discussing the feasibility of predicting the aerobic plate count of salmon. Methods After spectral pretreatment by wavelet analysis, a new prediction and validation model was established by using a combined tactic of genetic algorithm (GA) and back-propagation artificial neural network (BP-ANN) to predict the aerobic palate count of salmon based on the change of microbe during the storage at 4 ℃, and portable near infrared spectrometer was used. Results The model had high accuracy and precision, the calibration curve coefficient of correlation (R) of the model and the traditional plate count method was 0.981, and root mean square error (RMSE) was 0.097. Correlation coefficient of validation model was 0.960 and root mean square error (RMSE) was 0.098. Conclusion This model could be used for non-destructive and on-site detection of the total bacteria colonies in frozen salmon.
标题:基于手持式近红外光谱仪的三文鱼菌落总数 检测技术
英文标题:Detection of total number of salmon colonies by handheld near infrared spectrometer