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Use of near infrared spectroscopy to predict microbial numbers on Atlantic salmon
Citation
Tito, NB and Rodemann, T and Powell, SM, Use of near infrared spectroscopy to predict microbial numbers on Atlantic salmon, Food Microbiology, 32, (2) pp. 431-436. ISSN 0740-0020 (2012) [Refereed Article]
Copyright Statement
Crown Copyright 2012 Elsevier Ltd
DOI: doi:10.1016/j.fm.2012.07.009
Abstract
The potential of a near infrared spectroscopy (NIR) method to detect as well as predict microbial spoilage on Atlantic salmon (Salmo salar) was investigated. Principal component analysis (PCA) of the NIR spectra showed clear separation between the fresh salmon fillets and those stored for nine days at 4°C indicating that NIR could detect spoilage. A partial least squares regression (PLS) prediction model for total aerobic plate counts after nine days was established using the NIR spectra collected when the fish was fresh to predict the number of bacteria that would be present nine days later. The calibration equation was good (R2 = 0.95 and RMSE = 0.12 log cfu/g) although the error of the validation curve was larger (R2 = 0.64 and RMSE = 0.32 log cfu/g). These results indicate that with further model development, it may be possible to use NIR to predict bacterial numbers, and hence shelf-life, in Atlantic salmon and other seafood.
Item Details
Item Type: | Refereed Article |
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Keywords: | NIR spectroscopy, PLS model, spoilage, seafood |
Research Division: | Biological Sciences |
Research Group: | Microbiology |
Research Field: | Microbiology not elsewhere classified |
Objective Division: | Manufacturing |
Objective Group: | Processed food products and beverages (excl. dairy products) |
Objective Field: | Processed fish and seafood products |
UTAS Author: | Tito, NB (Miss Nthabiseng Tito) |
UTAS Author: | Rodemann, T (Dr Thomas Rodemann) |
UTAS Author: | Powell, SM (Dr Shane Powell) |
ID Code: | 74215 |
Year Published: | 2012 |
Web of Science® Times Cited: | 45 |
Deposited By: | Agricultural Science |
Deposited On: | 2011-11-15 |
Last Modified: | 2018-06-25 |
Downloads: | 0 |
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