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Vol. 119, Issue 8, August 2010, pp.65-71

 

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Design of Simple Instrumentation System for the Quality Analysis of Milk (Casein Analysis)

 

V. G. Sangam,* M. Sandesh., S. Krishna., S. Mahadevanna

*Department of Instrumentation, BVB College of Engineering and Technology

Hubli- 0091-580031, Karanataka, India

E-mail: sangamvg@yahoo.com

 

 

Received: 28 April 2010   /Accepted: 17 August 2010   /Published: 31 August 2010

 

Abstract: This paper describes the design of a simple instrumentation system for the analysis of casein concentration in the milk. Casein is one of the major constituent of milk and its concentration describes the quality of the milk. Normally casein is analyzed by conventional analytical methods or by using Spectrophotometric methods. Here an attempt has been made to develop a simple portable system using optical instrumentation technique. The objective of the developed system is the real time analysis of the casein concentration of the milk at the field. The system involves UV light source, UV filter, cuvette, photo detector, display unit, data Acquisition Card (DAC) as peripheral with USB port. Appropriate program has been developed in visual studio 6 and turbo C. Repeated number of real time analysis was carried out for different samples of milk; the results obtained are in excellent agreement with the amount determined by standard conventional methods with an accuracy of 1.5 %, and the response time is within 100 seconds. This system can be used in the field for the quality analysis of milk as an independent unit and can also be interfaced to PC with USB port. The system has good accuracy, less response time and low cost.

 

Keywords: Casein, Filter, DAQ, Accuracy, Response time

 

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