Intermediate infrared rapid batch detection method for content of free isoleucine in milk

• Main Authors: CHU CHU, PENG SONGYUE, ZHANG SHUJUN, SUN YUMEI, HAO LEIXIAO, ZHANG JINGJING, SU JUNDONG, FAN YIKAI
• Format: Patent
• Language: Chinese; English
• Published: 11.03.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention belongs to the field of dairy cow performance determination and milk quality detection, and particularly relates to an intermediate infrared rapid batch detection method for the content of free isoleucine in milk. In the aspect of selection of characteristic wave bands, the applicant breaks through a common method for screening characteristics by using an algorithm, and a manual selection and multiple traversal method is used. And finally, selecting a characteristic wave band for modeling, particularly screening out an absorption area containing part of water, and proving that the accuracy of the model can be improved by increasing part of the water absorption wave band. And the same milk sample is selected to measure the first spectrum MIR for modeling, so that the model accuracy of single spectrum measurement data modeling is improved. The optimal preprocessing and algorithm combination established by the isoleucine model is selected, the optimal parameters are determined, and the accuracy of