Jawad Mirza, Ahmad Atieh, Muhammad Ijaz, Salman Ghafoor, Firdos Kanwal, Fahad A. Alzahrani
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引用次数: 0
Abstract
Continuous monitoring of milk fermentation process during industrial yogurt production using pH metres is often cumbersome and inefficient technique. A simple, cost-effective and accurate alternative sensing technology is required for real-time monitoring. In this paper, we report real-time continuous monitoring of milk fermentation process and determine the fermentation end point during yogurt production using highly-sensitive fibre Bragg grating (FBG) stress sensor. Milk fermentation is monitored in real-time by analysing the shift in the Bragg wavelength of FBG stress sensor inserted into the milk corresponding to time-dependent gradual increase in applied stress on FBG stress sensor because of yogurt coagulation. Required sensitivities for an FBG sensor used for milk having 0% and 2.5% fat are around 3.03 and 3.01 pm/Pa, respectively. A proof of the concept of a smart alarm system (AS) for determination of the fermentation end point of yogurt is discussed in this work. This study presents a cost-effective, simple and non-destructive method for continuous real-time monitoring of milk fermentation process and determination of fermentation end point for small as well as large-scale production of yogurt.
期刊介绍:
IET Optoelectronics publishes state of the art research papers in the field of optoelectronics and photonics. The topics that are covered by the journal include optical and optoelectronic materials, nanophotonics, metamaterials and photonic crystals, light sources (e.g. LEDs, lasers and devices for lighting), optical modulation and multiplexing, optical fibres, cables and connectors, optical amplifiers, photodetectors and optical receivers, photonic integrated circuits, photonic systems, optical signal processing and holography and displays.
Most of the papers published describe original research from universities and industrial and government laboratories. However correspondence suggesting review papers and tutorials is welcomed, as are suggestions for special issues.
IET Optoelectronics covers but is not limited to the following topics:
Optical and optoelectronic materials
Light sources, including LEDs, lasers and devices for lighting
Optical modulation and multiplexing
Optical fibres, cables and connectors
Optical amplifiers
Photodetectors and optical receivers
Photonic integrated circuits
Nanophotonics and photonic crystals
Optical signal processing
Holography
Displays