Rapid and quantitative detection of the microbial spoilage in chicken meat by diffuse reflectance spectroscopy (600-1100 nm)

Letters in Applied Microbiology
M LinB A Rasco

Abstract

To evaluate the feasibility of visible and short-wavelength near-infrared (SW-NIR) diffuse reflectance spectroscopy (600-1100 nm) to quantify the microbial loads in chicken meat and to develop a rapid methodology for monitoring the onset of spoilage. Twenty-four prepackaged fresh chicken breast muscle samples were prepared and stored at 21 degrees C for 24 h. Visible and SW-NIR was used to detect and quantify the microbial loads in chicken breast muscle at time intervals of 0, 2, 4, 6, 8, 10, 12 and 24 h. Spectra were collected in the diffuse reflectance mode (600-1100 nm). Total aerobic plate count (APC) of each sample was determined by the spread plate method at 32 degrees C for 48 h. Principal component analysis (PCA) and partial least squares (PLS) based prediction models were developed. PCA analysis showed clear segregation of samples held 8 h or longer compared with 0-h control. An optimum PLS model required eight latent variables for chicken muscle (R = 0.91, SEP = 0.48 log CFU g(-1)). Visible and SW-NIR combined with PCA is capable of perceiving the change of the microbial loads in chicken muscle once the APC increases slightly above 1 log cycle. Accurate quantification of the bacterial loads in chicken muscle can be ca...Continue Reading

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Citations

Jun 28, 2014·Critical Reviews in Food Science and Nutrition·Xiaping Fu, Yibin Ying
Jun 26, 2013·Biocontrol Science·Masafumi UchidaHidemasa Kodaka
Sep 15, 2010·Journal of the Science of Food and Agriculture·Brett B WeddingPaul A Gadek
Jul 4, 2012·Critical Reviews in Food Science and Nutrition·Xiaonan Lu, Barbara A Rasco
Jun 11, 2014·Critical Reviews in Food Science and Nutrition·Hong-Ju HeDa-Wen Sun
Jan 28, 2017·Critical Reviews in Food Science and Nutrition·Magdalena Efenberger-SzmechtykDorota Kregiel
Jul 7, 2012·The Analyst·Yolanda SalinasInmaculada Lorente
Jun 26, 2012·Chemical Society Reviews·David I EllisRoyston Goodacre
Aug 22, 2020·Chemistry : a European Journal·Krzysztof B BećChristian W Huck
Apr 25, 2008·Journal of Agricultural and Food Chemistry·Dimitris AlexandrakisAmalia G M Scannell
Jun 8, 2021·Analytical Methods : Advancing Methods and Applications·Yanlong TianBin Chen

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