Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Feasibility of RF Sensor Application for On-line Monitoring of Tomato Paste Processing

토마토 패이스트 가공공정의 온라인 모니터링용 RF 센서의 활용 가능성

  • Kim, Seong-Min (Division of Bioresource Systems Engineering, Chonbuk National University) ;
  • Garvey, Casey (Quality & Innovation, ConAgra Foods, Inc.) ;
  • Leary, Thomas (Department of Chemical Engineering, University of California) ;
  • McCarthy, Michael (Department of Food Science & Technology University of California)
  • Published : 2008.12.25
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Abstract

On-line monitoring of fresh tomato paste processing was done using two radio frequency (RF) sensors resonant at 85 and 110 MHz. Fresh tomato juice with soluble solid content of about $5^{\circ}Brix$ was evaporated up to $23^{\circ}Brix$ and diluted down to about $5^{\circ}Brix$ again with a pilot scale evaporator. The RF sensors were installed in a processing pipe and monitored. The pastes at a specific $^{\circ}Brix$ level were sampled and analyzed for physical properties such as soluble solid content and viscosity. The relationships between sensor outputs and measured physical properties were analyzed. Analysis results showed RF sensor is feasible to apply on-line monitoring of tomato paste processing.

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References

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