Abstract
In this paper, a novel sensor, coated with lipase and polymethyl methacrylate, is proposed to detect the fat content of milk. Phase angle of the sensor impedance is changed with the milk samples of a different fat percent. The change of the phase angle is due to the hydrolysis of triglycerides, which are the key element of the milk fat. Hydrolysis process is catalyzed by the presence of external lipase, which is immobilized on the sensor surface. The sensitivity of the sensor is experimentally found as 0.5°/% fat. Milk fat is varied from 1.5% to 20%. A rechargeable battery operated hand-held instrument is proposed, which gives the output as low-fat milk (LFM), high-fat milk (HFM), or very high-fat milk (VHFM) according to the fat percentage of the milk. A study is carried out for power consumption by the instrument. Error analysis, specifications, and performance of the proposed instrument are also studied.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IEEE Transactions on Instrumentation and Measurement
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
