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Acta Universitatis Cibiniensis. Series E: Food Technology

The Journal of „Lucian Blaga“ University of Sibiu

2 Issues per year

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ISSN
2344-150X
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Estimating Wine Yeast Concentration by Speckle Size Measurement

Dan Chicea
  • Corresponding author
  • Department of Environmental Sciences, University Lucian Blaga, Dr. Ion Ratiu str., no 5-7, Sibiu, 550012, ROMANIA
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  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Ovidiu Tiţa
  • Pediatric Respiratory Medicine Research Center (CCMRP), Str. Pompeiu Onofreiu Nr. 2 – 4 , Sibiu, ROMANIA
  • Faculty of Agricultural Sciences, Food Industry and Environmental Protection, University Lucian Blaga, Dr. Ion Ratiu str., no 7-9, Sibiu, 550012, ROMANIA
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Mihaela Tiţa
  • Faculty of Agricultural Sciences, Food Industry and Environmental Protection, University Lucian Blaga, Dr. Ion Ratiu str., no 7-9, Sibiu, 550012, ROMANIA
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Ecaterina Lengyel
  • Faculty of Agricultural Sciences, Food Industry and Environmental Protection, University Lucian Blaga, Dr. Ion Ratiu str., no 7-9, Sibiu, 550012, ROMANIA
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2013-07-30 | DOI: https://doi.org/10.2478/aucft-2013-0001

Abstract

A coherent light scattering experiment on aqueous suspension of Saccharomyces cerevisia yeast with a concentration that covers five orders of magnitude was performed. The average scattered light far field was recorded using a CCD. A computer code for image processing was written for this purpose and used for providing the first order statistics of the far interference field. The variation of the average speckle size with the particle concentration was analyzed and a very fast procedure for monitoring the yeast concentration is suggested. The possibility of monitoring the fermentation process by a fast assessment of the yeast concentration is suggested, as well.

Keywords : Coherent Light Scattering; Suspension; Particle Concentration; Sacharomyces cerevisiae ssp. ellipsoideus

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About the article

Published Online: 2013-07-30

Published in Print: 2013-06-01


Citation Information: Acta Universitatis Cibiniensis. Series E: Food Technology, Volume 17, Issue 1, Pages 3–12, ISSN (Print) 2344-150X, DOI: https://doi.org/10.2478/aucft-2013-0001.

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