There is a clear need for application of proper methods for measuring food quality and safety in the globalized food-webs. Numerous instrumental methods have been established in the course of the 20th century and are developing further, together with data analysis techniques, for such purposes. Among them, near-infrared and fluorescence spectroscopic methods and chemical sensor arrays called electronic noses show particular promise for rapid, non-destructive, non-invasive and cost-effective ways for assessing changes and enhancing control during processing and storage of foods. Their key advantages as analytical tools are 1) their relatively high speed of analysis, 2) the lack of a need to carry out complex sample preparation or processing, 3) their relatively low cost, and 4) their suitability for on-line monitoring or quality control. The present survey attempts to demonstrate examples from the above areas, limiting itself mainly to monitoring some quality indices which contribute to the functionality or acceptability of foods as affected by alternative processing technologies, or loss of freshness/microbial safety, or developing spoilage during storage and marketing. These instrumental methods are correlative techniques: they must be calibrated first against (traditional) reference properties, and the instrumental data are evaluated with the help of chemometric methods. Near-infrared (NIR) spectroscopy can be used in either the reflectance or the transmittance mode. NIR spectra transformed to mathematical derivatives allows subtle spectrum changes to be resolved. Selected examples from the extensive NIRS literature relate to assessment of the quality of frozen fish, predicting cooking loss of chicken patties, detecting complex physico-chemical changes of minced meat as a function of the intensity of high hydrostatic pressure treatment, comparing changes of NIR spectrometric “fingerprints” caused by gamma radiation or high pressure pasteurization of liquid egg white. Changes of NIR spectra reflect several parameters which suit the evaluation of loss of freshness, and onset of spoilage of various foods. NIR spectroscopy shows an application potential for rapid detection of bacterial or mould contamination. It may serve as a tool for detecting initial stages of mobilization processes during germination of cereal grains, or even for GMO screening. Spectrofluorometic measurements have shown potential, e.g. to monitor lipid oxidation and development of meat rancidity, to differentiate between raw and processed milks, and to monitor fish and egg freshness. Electronic noses containing chemical sensor arrays offer a rapid method for evaluation of head-space volatiles of food samples, important for characterizing quality and safety. Such gas sensors may be able to classify storage time, and determine spoilage, either earlier or at the same time as the human senses, or “sniffing out” bacterial pathogens or (toxigenic) fungal growth on certain foods. Electronic nose sensing is also a promising method for detecting quality changes of fruit- and vegetable products non-destructively. In relation to some examples to be presented in the paper, certain software developments as qualitative classification tools made by Hungarian scientists will be pointed out.
Andersen, C. M., Wold, J. P., Engelsen, S. B. (2009) Autofluorescence spectroscopy in food analysis. In: Ötles, S. (ed.) Handbook of Food Analysis Instruments . CRC Press, Boca Raton, etc., 347–363.
Engelsen S. B. , '', in Handbook of Food Analysis Instruments , (2009 ) -.
Andrássy, É., Farkas, J., Seregély, Zs., Dalmadi, I., Tuboly, E., Lebovics, V. (2006) Changes of hen eggs and their components caused by non-thermal pasteurizing treatments. II. Some non-microbiological effects of gamma irradiation or hydrostatic pressure processing on liquid egg white and egg yolk. Acta Alimentaria , 35(3): 305–318.
Lebovics V. , 'Changes of hen eggs and their components caused by non-thermal pasteurizing treatments. II. Some non-microbiological effects of gamma irradiation or hydrostatic pressure processing on liquid egg white and egg yolk ' (2006 ) 35 Acta Alimentaria : 305 -318 .
Anon. (2008) NIR spectroscopy and food quality control. Food Engineering and Ingredients, Lab International , Special Issue, October, 10–12.
Baianu, I. C., You, T. (2009) High-resolution near-infrared and nuclear magnetic resonance analysis of food and grain composition. In: Ötles, S. (ed.) Handbook of Food Analysis Instruments . CRC Press, Boca Raton, etc., 248–279.
You T. , '', in Handbook of Food Analysis Instruments , (2009 ) -.
Bartlett, P. N., Elliott, J. M., Gardner, J. W. (1997) Electronic noses and their applications in the food industry. Food Technology , 51(12), 44–48.
Gardner J. W. , 'Electronic noses and their applications in the food industry ' (1997 ) 51 Food Technology : 44 -48 .
Blixt, Y., Borch, E. (1999) Using an electronic nose for determining the spoilage of vacuum-packaged beef. Int. J. Food Microbiol. , 46(2): 123–134.
Borch E. , 'Using an electronic nose for determining the spoilage of vacuum-packaged beef ' (1999 ) 46 Int. J. Food Microbiol. : 123 -134 .
Bock, J. E., Connelly, R. K. (2008) Innovative uses of near-infrared spectroscopy in food processing. J. Food Sci. , 73(7): R91–R98.
Connelly R. K. , 'Innovative uses of near-infrared spectroscopy in food processing ' (2008 ) 73 J. Food Sci. : R91 -R98 .
Boothe, D. D. H., Arnold, J. W. (2002) Electronic nose analysis of volatile compounds from poultry meat samples, fresh and after refrigerated storage. J. Sci. Food Agric. , 82, 315–322.
Arnold J. W. , 'Electronic nose analysis of volatile compounds from poultry meat samples, fresh and after refrigerated storage ' (2002 ) 82 J. Sci. Food Agric. : 315 -322 .
Boknaes, N., Jensen, K. N., Andersen, C. M., Martens, H. (2002) Freshness assessment of thawed and chilled cod fillets packed in modified atmosphere using near-infrared spectroscopy. Lebensm.-Wiss. u. Technol. , 35, 628–634.
Martens H. , 'Freshness assessment of thawed and chilled cod fillets packed in modified atmosphere using near-infrared spectroscopy ' (2002 ) 35 Lebensm.-Wiss. u. Technol. : 628 -634 .
Butz, P., Hofmann, C., Tauscher, B. (2005) Recent developments in noninvasive techniques for fresh fruit and vegetables internal quality analysis. J. Food Sci. , 70(9): R131–R141.
Tauscher B. , 'Recent developments in noninvasive techniques for fresh fruit and vegetables internal quality analysis ' (2005 ) 70 J. Food Sci. : R131 -R141 .
Chen, H., Marks, B. P. (1997) Evaluating previous thermal treatment of chicken patties by visible/near-infrared spectroscopy. J. Food Sci. , 62(4): 753–756, 780.
Marks B. P. , 'Evaluating previous thermal treatment of chicken patties by visible/near-infrared spectroscopy ' (1997 ) 62 J. Food Sci. : 753 -756 .
Chen, H., Marks, B. P. (1998) Visible/near-infrared spectroscopy for physical characteristics of cooked chicken patties. J. Food Sci. , 63(2): 279–282.
Marks B. P. , 'Visible/near-infrared spectroscopy for physical characteristics of cooked chicken patties ' (1998 ) 63 J. Food Sci. : 279 -282 .
Dalmadi, I., Polyák-Fehér, K., Farkas, J. (2007a) Effects of pressure- and thermalpasteurization on volatiles of some berry fruits. High Pressure Research , 27(1): 169–172.
Farkas J. , 'Effects of pressure- and thermalpasteurization on volatiles of some berry fruits ' (2007 ) 27 High Pressure Research : 169 -172 .
Dalmadi, I., Kántor, D. B., Wolz, K., Polyák-Fehér, K., Pásztor-Huszár, K., Farkas, J., Fekete, A. (2007b) Instrumental analysis of strawberry puree processed by high hydrostatic pressure on thermal treatment. Progress in Agricultural Engineering Sciences , 3(1): 47–66.
Fekete A. , 'Instrumental analysis of strawberry puree processed by high hydrostatic pressure on thermal treatment ' (2007 ) 3 Progress in Agricultural Engineering Sciences : 47 -66 .
Dalmadi, I., Seregély, Zs., Farkas, J., Tuboly, E. (2007c) Evaluating the near infrared spectra of egg white pasteurised by ultra-high hydrostatic pressure and gamma irradiation using different methods of qualitative analysis. NIR News , 18(2): 7–9.
Tuboly E. , 'Evaluating the near infrared spectra of egg white pasteurised by ultra-high hydrostatic pressure and gamma irradiation using different methods of qualitative analysis ' (2007 ) 18 NIR News : 7 -9 .
Davies, A. M. C., Dennis, C., Grant, A., Hall, M. N., Robertson, A. (1987) Screening of tomato purée for excessive mould content by near infrared spectroscopy: A preliminary evaluation J. Sci. Food Agric. , 39, 349
Robertson A. , 'Screening of tomato purée for excessive mould content by near infrared spectroscopy: A preliminary evaluation J ' (1987 ) 39 Sci. Food Agric. : 349 -.
Dowell, F. E., Ram, M. S., Seitz, L. M. (1999) Predicting scab, vomitoxin, and ergosterol in single wheat kernels using near-infrared spectroscopy. Cereal Chemistry , 76(4): 573–576.
Seitz L. M. , 'Predicting scab, vomitoxin, and ergosterol in single wheat kernels using near-infrared spectroscopy ' (1999 ) 76 Cereal Chemistry : 573 -576 .
Downey, G., Beauchêne, D. (1997) Discrimination between fresh and frozen-then-thawed beef m. longissiumus dorsi by combined visible-near infrared reflectance spectroscopy: a feasibility study. Meat Science , 45(3): 353–363.
Beauchêne D. , 'Discrimination between fresh and frozen-then-thawed beef m. longissiumus dorsi by combined visible-near infrared reflectance spectroscopy: a feasibility study ' (1997 ) 45 Meat Science : 353 -363 .
Du, W.-X., Kim, J., Cornell, J. A., Huang, T.-S., Marshall, M., Wei, C.-I. (2001) Microbiological, sensory, and electronic nose evaluation of yellowfin tuna under various storage conditions. J. Food Protect. , 64(12): 2027–2036.
Wei C.-I. , 'Microbiological, sensory, and electronic nose evaluation of yellowfin tuna under various storage conditions ' (2001 ) 64 J. Food Protect. : 2027 -2036 .
Du, W.-X., Lin, C.-M., Kim, J., Marshall, M., Wei, C.-I. (2002) Potential application of the electronic nose for quality asessment of salmon fillets under various storage conditions. J. Food Sci. , 67(1): 307–313.
Wei C.-I. , 'Potential application of the electronic nose for quality asessment of salmon fillets under various storage conditions ' (2002 ) 67 J. Food Sci. : 307 -313 .
Dufour, E., Riaublanc, A. (1997) Potentiality of spectroscopic methods for the characterization of dairy products. I. Front-face fluorescence study of raw, heated and homogenized milks. Lait , 77, 657–670.
Riaublanc A. , 'Potentiality of spectroscopic methods for the characterization of dairy products. I. Front-face fluorescence study of raw, heated and homogenized milks ' (1997 ) 77 Lait : 657 -670 .
Dufour, E., Frencia, J. P., Kane, E. (2003) Development of a rapid method based on front-face fluorescence spectroscopy for the monitoring of fish freshness. Food Res. International , 36, 415–423.
Kane E. , 'Development of a rapid method based on front-face fluorescence spectroscopy for the monitoring of fish freshness ' (2003 ) 36 Food Res. International : 415 -423 .
Elköv, T., Johansson, G., Winquist, F., Lundström, I. (1998) Monitoring sausage fermentation using an electronic nose. J. Sci. Fod Agric. , 76, 525–532.
Lundström I. , 'Monitoring sausage fermentation using an electronic nose ' (1998 ) 76 J. Sci. Fod Agric. : 525 -532 .
Engelsen, S. B. (1997) Explorative spectrometric evaluations of frying oil determination. JAOCS , 74, 1495.
Engelsen S. B. , 'Explorative spectrometric evaluations of frying oil determination ' (1997 ) 74 JAOCS : 1495 -.
Farkas, J., Hajós, Gy., Kaffka, K., Mészáros, L., Seregély, Zs., Szerdahelyi, E. (2001) Studies on high pressure induced physicochemical changes in minced meat. Abstracts of the European Conference on Advanced Technology for Safe and High Quality Foods, 5–7 December, Berlin, Germany . Abstract No. 3.39.
Funazaki, N., Hemmi, A., Ito, S., Asano, Y., Yano, Y., Miura, N., Yamazoe, N. (1995) Application of semiconductor gas sensor to quality control of meat freshness in food industry. Sensors and Actuators B , 24–25, 797–800.
Yamazoe N. , 'Application of semiconductor gas sensor to quality control of meat freshness in food industry ' (1995 ) 24–25 Sensors and Actuators B : 797 -800 .
Hassan, Y., Mészáros, L., Simon, A., Tuboly, E., Mohácsi-Farkas, Cs., Farkas, J. (2002) Comparative studies on gamma radiation and high-pressure induced effects on minced beef. Acta Alimentaria , 31(3): 253–261.
Farkas J. , 'Comparative studies on gamma radiation and high-pressure induced effects on minced beef ' (2002 ) 31 Acta Alimentaria : 253 -261 .
Horváth, K., Seregély, Zs., Dalmadi, I., Andrássy, É., Farkas, J. (2007) Estimation of bacteriological spoilage of pork cutlets by electronic nose. Acta Microbiol. et Immunol. Hung. , 54, 179–194.
Farkas J. , 'Estimation of bacteriological spoilage of pork cutlets by electronic nose ' (2007 ) 54 Acta Microbiol. et Immunol. Hung. : 179 -194 .
Horváth, K., Seregély, Zs., Andrássy, É., Dalmadi, I., Farkas, J. (2008) A preliminary study using near infrared spectroscopy to evaluate freshness and detect spoilage in sliced pork meat. Acta Alimentaria , 37(1): 93–101.
Farkas J. , 'A preliminary study using near infrared spectroscopy to evaluate freshness and detect spoilage in sliced pork meat ' (2008 ) 37 Acta Alimentaria : 93 -101 .
Huang, H., Yu, H., Xu, H., Ying, Y. (2008) Near infrared spectroscopy for on-line monitoring of quality in foods and beverages: A review. J. Food Engng. , 87(3): 303–313.
Ying Y. , 'Near infrared spectroscopy for on-line monitoring of quality in foods and beverages: A review ' (2008 ) 87 J. Food Engng. : 303 -313 .
Jonsson, A., Winquist, F., Schnürer, J., Sundgren, H., Lundström, I. (1997) Electronic nose for microbial quality classification of grains. Int. J. Food Microbiol. , 35, 187–193.
Lundström I. , 'Electronic nose for microbial quality classification of grains ' (1997 ) 35 Int. J. Food Microbiol. : 187 -193 .
Juhász, R., Gergely, Sz., Gelencsér, T., Salgó, A. (2005) Relationship between NIR spectra and RVA parameters during wheat germination. Cereal Chemistry , 82(5): 488–493.
Salgó A. , 'Relationship between NIR spectra and RVA parameters during wheat germination ' (2005 ) 82 Cereal Chemistry : 488 -493 .
Juhász, R., Gergely, Sz., Szabóki, Á., Salgó, A (2007) Correlation between NIR spectra and RVA parameters during germination of maize. Cereal Chemistry , 84(1): 97–101.
Salgó A. , 'Correlation between NIR spectra and RVA parameters during germination of maize ' (2007 ) 84 Cereal Chemistry : 97 -101 .
Kaffka, K. (2008) How the NIR technology came to and spread in Europe for quality assessment and control in the food industry. Acta Alimentaria , 37(2): 141–145.
Kaffka K. , 'How the NIR technology came to and spread in Europe for quality assessment and control in the food industry ' (2008 ) 37 Acta Alimentaria : 141 -145 .
Kaffka, K. J., Gyarmati, L. S. (1991) In: Proceedings of the 3rd International Conference on Near Infrared Spectroscopy . Agricultural Research Centre Publishing, Gembloux, Belgium. 58–68.
Gyarmati L. S. , '', in Proceedings of the 3rd International Conference on Near Infrared Spectroscopy , (1991 ) -.
Kaffka, K. J., Seregély, Zs. (2002) PQS (Polar Qualification System), the new data reduction and product qualification method. Acta Alimentaria , 31, 3–20.
Seregély Zs. , 'PQS (Polar Qualification System), the new data reduction and product qualification method ' (2002 ) 31 Acta Alimentaria : 3 -20 .
Kamarei, A. R., Karel, M. (1984) Assessment of autooxidation in freeze-dried meats by a fluorescence assay. J. Food Sci. , 49, 1517–1524.
Karel M. , 'Assessment of autooxidation in freeze-dried meats by a fluorescence assay ' (1984 ) 49 J. Food Sci. : 1517 -1524 .
Karoui, R., Kempe, B., Bamelis, F., De Ketelaere, B., Merten, K., Schoonheydt, R., Decuypere, E., De Baerdemaeker, J. (2006a) Development of a rapid method based on front-face fluorescence spectroscopy for the monitoring of egg freshness: 1 — evolution of thick and thin egg albumen. Eur. Food Res. Technol. , 223, 303–312.
Baerdemaeker J. , 'Development of a rapid method based on front-face fluorescence spectroscopy for the monitoring of egg freshness: 1 — evolution of thick and thin egg albumen ' (2006 ) 223 Eur. Food Res. Technol. : 303 -312 .
Karoui, R., Kempe, B., Bamelis, F., De Ketelaere, B., Merten, K., Schoonheydt, R., Decuypere, E., De Baerdemaeker, J. (2006b) Development of a rapid method based on front-face fluorescence spectroscopy for the monitoring of egg freshness: 2 — evolution of egg yolk. Eur. Food Res. Technol. , 223, 180–188.
Baerdemaeker J. , 'Development of a rapid method based on front-face fluorescence spectroscopy for the monitoring of egg freshness: 2 — evolution of egg yolk ' (2006 ) 223 Eur. Food Res. Technol. : 180 -188 .
Karoui, R., Schoonheydt, R., Decuypere, E., Nicolai, B., De Baerdemaeker, J. (2007) Frontface fluorescence spectroscopy as a tool for the assessment of egg freshness during storage at a temperature of 12.2 °C and 87% relative humidity. Analytical Chimica Acta , 582, 83–91.
Baerdemaeker J. , 'Frontface fluorescence spectroscopy as a tool for the assessment of egg freshness during storage at a temperature of 12.2 °C and 87% relative humidity ' (2007 ) 582 Analytical Chimica Acta : 83 -91 .
Karoui, R., Nicola, B., De Baerdemaeker, J. (2008) Monitoring the egg freshness during storage under modified atmosphere by fluorescence spectroscopy. Food Bioprocess Technol. , 1, 346–356.
Baerdemaeker J. , 'Monitoring the egg freshness during storage under modified atmosphere by fluorescence spectroscopy ' (2008 ) 1 Food Bioprocess Technol. : 346 -356 .
Kemps, B., Bamakis, F., De Ketelaere, B., Mertens, K., Tona, K., Decuypere, E. et al. (2006) Visible transmission spectroscopy for the assessment of egg freshness. J. Sci. Food Agric. , 86, 1399–1406.
Decuypere E. , 'Visible transmission spectroscopy for the assessment of egg freshness ' (2006 ) 86 J. Sci. Food Agric. : 1399 -1406 .
Keshri, G., Magan, N. (2000) Detection and differentiation between mycotoxigenic and non-mycotoxigenic strains of two Fusarium spp. using volatile production profiles and hydrolytic enzymes. J. Appl. Microbiol. , 89, 825–833.
Magan N. , 'Detection and differentiation between mycotoxigenic and non-mycotoxigenic strains of two Fusarium spp. using volatile production profiles and hydrolytic enzymes ' (2000 ) 89 J. Appl. Microbiol. : 825 -833 .
Kiskó, G., Kaffka, K., Farkas, J. (2000) Estimation of mouldiness of paprika powder by near infrared spectroscopy. In: Davies, A. M. C., Giangiacomo, R. (eds) Infrared Spectroscopy. Proceedings of the 9th International Conference , P.Y., 455–461.
Korel, F., Balaban, M. Ö. (2009) Electronic nose technology in food analysis. In: Ötles, S. (ed.) Handbook of Food Analysis Instruments . CRC Press, Boca Raton, etc., 365–378.
Balaban M. Ö. , '', in Handbook of Food Analysis Instruments , (2009 ) -.
Korel, F., Luzuriaga, D. A., Balaban, M. Ö. (2001) Objective quality assessment of raw tilapia ( Oreochromis niloticus ) fillets using electronic nose and machine vision. J. Food Sci. , 66(7): 1018–1024.
Balaban M. Ö. , 'Objective quality assessment of raw tilapia (Oreochromis niloticus) fillets using electronic nose and machine vision ' (2001 ) 66 J. Food Sci. : 1018 -1024 .
Lin, M., Al-Holy, M., Monsavi-Hesary, M., Al-Qadiri, H., Cavinato, A. G., Rasco, B. A. (2004) Rapid and quantitative detection of the microbial spoilage in chicken meat by diffuse reflectance spectroscopy (600–1100 nm). Letters in Applied Microbiology , 39, 148–155.
Rasco B. A. , 'Rapid and quantitative detection of the microbial spoilage in chicken meat by diffuse reflectance spectroscopy (600–1100 nm) ' (2004 ) 39 Letters in Applied Microbiology : 148 -155 .
Liu, Y., Chen, Y.-R., Ozaki, Y. (2000) Two-dimensional visible/infrared correlation spectroscopy study of thermal treatment of chicken meats. J. Agric. Food Chem. , 48, 901–908.
Ozaki Y. , 'Two-dimensional visible/infrared correlation spectroscopy study of thermal treatment of chicken meats ' (2000 ) 48 J. Agric. Food Chem. : 901 -908 .
Liu, Y., Ying, Y., Ouyang, A., Li, Y. (2007) Measurement of internal quality in chicken eggs using visible transmittance spectroscopy technology. Food Control , 18, 18–22.
Li Y. , 'Measurement of internal quality in chicken eggs using visible transmittance spectroscopy technology ' (2007 ) 18 Food Control : 18 -22 .
Luten, J. B., Martinsdottir, E. (1997) QIM: an European tool for fish freshness evaluation in the fishery chain. In: Olafsdottir, G., Luten, J., Dalgaard, P., Careche, M., Vervez-Baguis, V., Martinsdottir, E., Heia, K. (eds) Methods to Evaluate Frish Freshness in Research and Industry . International Institute of Refrigeration (IIR), Paris. 347–354.
Martinsdottir E. , '', in Methods to Evaluate Frish Freshness in Research and Industry , (1997 ) -.
Magan, N. (2004) Rapid detection of microbial contaminants in food products using electronic nose technology (Euro Food Micro Detect). http://www.e-nose.net/
Mermelstein, N. H. (2008) Sniffing out pathogens. Food Technology , (3): 66–68.
Millar, S. (2007) Using near infrared (NIR) spectroscopy for the non-invasive assessment of food. New Food , (3): 26–30.
Nicolai, B. M., Beullens, K., Bobelyn, E., Peirs, A., Saeys, W., Theron, K. I., Lammertin, J. (2007) Nondestructive measurement of fruit and vegetable quality by means of NIR spectroscopy: A review. Postharvest Biology and Technology , 46(2): 99–118.
Lammertin J. , 'Nondestructive measurement of fruit and vegetable quality by means of NIR spectroscopy: A review ' (2007 ) 46 Postharvest Biology and Technology : 99 -118 .
Nilsen, H., Esaiassen, M., Heia, K., Sigernes, F. (2002) Visible/near-infrared spectroscopy: a new tool for the evaluation of fish freshness? J. Food Sci. , 67(5): 1821–1826.
Sigernes F. , 'Visible/near-infrared spectroscopy: a new tool for the evaluation of fish freshness? ' (2002 ) 67 J. Food Sci. : 1821 -1826 .
Oey, I., Lille, M., Van Loey, A., Hendricky, M. (2008) Effect of high pressure processing on colour, texture and flavour of fruit- and vegetable based food products: a review. Trends in Food Science & Technology , 19, 320–328.
Hendricky M. , 'Effect of high pressure processing on colour, texture and flavour of fruit- and vegetable based food products: a review ' (2008 ) 19 Trends in Food Science & Technology : 320 -328 .
Ólafsdottir, G., Martinsdottir, E., Jónsson, E. H. (1997) Gas sensor and GC measurements of volatile compounds in Capelin ( Mallotus vilosus ). In: Luten, J. B., Børresen, T., Oehlenschläger, J. (eds) Seafood from Producer to Consumer, Integrated Approach to Quality . Elsevier Science, B.V., 507–519.
Ólafsdottir, G., Högnadottir, Å., Martinsdottir, E., Lanzon, L. (1998) Application of an “electronic nose” to detect microbial metabolites during spoilage of fish and fish products. COST Action 914, WG no. 2, May 15–16, 1998, Bologna, Italy.
Ólafsdottir, G., Nesvadba, P., Di Natale, C., Careche, M., Oehlenschläger, J., Tryggvadottir, S. V., Schubring, R., Koeger, M., Heia, K., Eisaiassen, M., Macagnano, A., Jørgensen, B. M. (2004) Multisensor fish quality determination. Trends i Food Sci. & Technol. , 15, 86–93.
Jørgensen B. M. , 'Multisensor fish quality determination ' (2004 ) 15 Trends i Food Sci. & Technol. : 86 -93 .
Ólafsdottir, G., Chanie, E., Westad, F., Johnsdottir, R., Thalmann, H., Barzo, S., Labreche, S., Marcq, P., Lundby, F., Haugen, J. E. (2005) Prediction of microbial and sensory quality of cold smoked atlantic salmo ( Salmo salar ) by electronic nose. J. Food Sci. , 70(9): S563–S574.
Haugen J. E. , 'Prediction of microbial and sensory quality of cold smoked atlantic salmo (Salmo salar) by electronic nose ' (2005 ) 70 J. Food Sci. : S563 -S574 .
Ólafsson, R., Martinsdottir, E., Ólafsdottir, G., Sigfusson, P. I., Gardner, J. W. (1992) Monitoring of fish freshness using tin oxide sensors. In: Gardner, J. W., Bartlett, P. N. (eds) Sensors and Sensory Systems for an Electronic Nose . Kluwer Academic Publishers, The Netherlands, 257–272.
Gardner J. W. , '', in Sensors and Sensory Systems for an Electronic Nose , (1992 ) -.
Pallav, P., Diamond, G. G., Hutchings, D. A., Green, R. J., Gan, T. H. (2009) A nearinfrared (NIR) technique for imaging food materials. J. Food Sci. , 74(1): E23–E33.
Gan T. H. , 'A nearinfrared (NIR) technique for imaging food materials ' (2009 ) 74 J. Food Sci. : E23 -E33 .
Pásztor-Huszár, K. (2008) Protein changes of various types of milk as affected by high hydrostatic pressure processing . PhD Thesis, Faculty of Food Science, Corvinus University of Budapest, Hungary
Pásztor-Huszár K. , '', in Protein changes of various types of milk as affected by high hydrostatic pressure processing , (2008 ) -.
Pink, J., Naczk, M., Pink, D. (1999) Evaluation of the quality of frozen minced red hake: use of Fourier transform near-infrared spectroscopy. J. Agric. Food Chem. , 47, 4280–4284.
Pink D. , 'Evaluation of the quality of frozen minced red hake: use of Fourier transform near-infrared spectroscopy ' (1999 ) 47 J. Agric. Food Chem. : 4280 -4284 .
Rajamäki, T., Alahomi, H.-L., Ritvanen, T., Skyttä, E., Smolander, M., Ahvenainen, R. (2006) Application of an electronic nose for quality assessment of modified atmosphere packaged poultry meat. Food Control , 17, 5–13.
Ahvenainen R. , 'Application of an electronic nose for quality assessment of modified atmosphere packaged poultry meat ' (2006 ) 17 Food Control : 5 -13 .
Reuss, R. (2003) Using real-time quality measurement to maintain and increase value accross the grain supply chain. In: Wright, E. J., Webb, M. C. Highley, E. (eds.) Stored Grain in Australia 2003. Proceedings of the Australian Postharvest Technical Conference, Canberra, 25–27 June. CSIRO Stored Grain Research Laboratory, Canberra. 49–54.
Reuss R. , '', in Stored Grain in Australia 2003. Proceedings of the Australian Postharvest Technical Conference, Canberra, 25–27 June , (2003 ) -.
Sarawong, S., Kawano, S. (2008) NIR detection of total bacteria count in raw milk. Poster, Japan.
Schamberger, G. P., Labuza, T. P. (2006) Evaluation of front-face fluorescence for assessing thermal processing of milk. J. Food Sci. , 71(2): C69–C74.
Labuza T. P. , 'Evaluation of front-face fluorescence for assessing thermal processing of milk ' (2006 ) 71 J. Food Sci. : C69 -C74 .
Schiffman, S. S., Wyrick, D. W., Gutierrez-Osuna, R., Nagle, H. T. (2000) Effectiveness of an electronic nose for monitoring bacterial and fungal growth. Proceedings of the 7th International Symp. On Olfaction and Electronic Nose, Brighton, U.K., July 20–24 . 1–8.
Seregély, Zs., Farkas, J., Tuboly, E., Dalmadi, I. (2006) Investigating the properties of egg white pasteurised by ultra-high hydrostatic pressure and gamma irradiation by evaluating their NIR spectra and chemosensor array sensor signal responses using different methods of qualitative analysis. Chemometric and Intelligent Laboratory Systems , 82, 115–121.
Dalmadi I. , 'Investigating the properties of egg white pasteurised by ultra-high hydrostatic pressure and gamma irradiation by evaluating their NIR spectra and chemosensor array sensor signal responses using different methods of qualitative analysis ' (2006 ) 82 Chemometric and Intelligent Laboratory Systems : 115 -121 .
Siegmund, B., Pfannhauser, W. (1999) Changes of the volatile fraction of cooked chicken meat during chill storage. Results obtained by the electronic nose in comparison to GC-MS and GC olfactometry. Z. Lebensm. Unters. Forsch. , 208, 336–341.
Pfannhauser W. , 'Changes of the volatile fraction of cooked chicken meat during chill storage. Results obtained by the electronic nose in comparison to GC-MS and GC olfactometry ' (1999 ) 208 Z. Lebensm. Unters. Forsch. : 336 -341 .
Sinelly, N. (2006) Monitoring the shelf life of dairy products. New Food , (4): 38–44.
Sinelly N. , 'Monitoring the shelf life of dairy products ' (2006 ) 4 New Food : 38 -44 .
Sinelly, N., Barzaghi, S., Giardina, C., Cattaneo, T. M. P. (2005) A preliminary study using Fourier-transform near infrared spectroscopy to monitor the shelf-life of packed industrial ricotta cheese. J. Near Infrared Spectrosc. , 13, 293–300.
Cattaneo T. M. P. , 'A preliminary study using Fourier-transform near infrared spectroscopy to monitor the shelf-life of packed industrial ricotta cheese ' (2005 ) 13 J. Near Infrared Spectrosc. : 293 -300 .
Siripatrawan, U. (2008) Self-organizing algorithm for classification of packaged fresh vegetable potentially contaminated with foodborne pathogens. Sensors and Actuators B , 128, 435–441.
Siripatrawan U. , 'Self-organizing algorithm for classification of packaged fresh vegetable potentially contaminated with foodborne pathogens ' (2008 ) 128 Sensors and Actuators B : 435 -441 .
Siripatrawan, U., Linz, J. E., Harte, B. R. (2004) Rapid method for prediction of Escherichia coli members using an electronic sensor array and an artificial neural network. J. Food Protect. , 7(8): 1604–1609.
Harte B. R. , 'Rapid method for prediction of Escherichia coli members using an electronic sensor array and an artificial neural network ' (2004 ) 7 J. Food Protect. : 1604 -1609 .
Szabó, A., Bázár, G., Andrássy-Baka, G., Locsmándi, L., Romvári, R. (2009) A near infrared spectroscopic (NIR) approach to estimate quality alterations during prolonged heating of lard. Acta Aliment , 38(1): 97–106.
Romvári R. , 'A near infrared spectroscopic (NIR) approach to estimate quality alterations during prolonged heating of lard ' (2009 ) 38 Acta Aliment : 97 -106 .
Trihaas, J., Van den Tempel, T., Nielsen, P. V. (2005) Electronic nose of Danish blue cheese by means of electronic nose system, trained sensory panel and GC-MS. J Food Sci. , 70, E392–E400.
Nielsen P. V. , 'Electronic nose of Danish blue cheese by means of electronic nose system, trained sensory panel and GC-MS ' (2005 ) 70 J Food Sci. : E392 -E400 .
Veberg, A., Vogt, G. Wold, J. P. (2006a) Fluorescence in aldehyde model systems related to lipid oxidation. LWT — Food Science and Technology , 39(5): 562–570.
Wold J. P. , 'Fluorescence in aldehyde model systems related to lipid oxidation ' (2006 ) 39 LWT — Food Science and Technology : 562 -570 .
Veberg, A., Sørheim, O., Moan, J., Iani, V., Juzenas, P., Nilsen, A. N., Wold, J. P. (2006b) Measurement of lipid oxidation and porphyrins in high oxygen modifiedatmosphere and vacuum packed minced turkey and pork meat by fluorescence spectra and images. Meat Sci. , 73, 511.
Wold J. P. , 'Measurement of lipid oxidation and porphyrins in high oxygen modifiedatmosphere and vacuum packed minced turkey and pork meat by fluorescence spectra and images ' (2006 ) 73 Meat Sci. : 511 -.
Wang, D., Dowell, F. E., Chung, D. S. (2001) Assessment of heat-damaged wheat kernels using near-infrared spectroscopy. Cereal Chemistry , 78(5): 625–628.
Chung D. S. , 'Assessment of heat-damaged wheat kernels using near-infrared spectroscopy ' (2001 ) 78 Cereal Chemistry : 625 -628 .
Wicklow, D., Pearson, T., Brabec, D. (2007) NIR spectroscopy as a tool for optimizing sorting of white corn kernels contaminated mycotoxins. In: Biston, R., Bartiaux-Thill, N. (eds) Qualitative (Comparative) Analysis by Near Infrared Spectroscopy, Corn Dry Milling Conference Proceedings , Abstract.
Wold, J. P., Mielnik, M. (2000) Non-destructive assessment of lipid oxidation in minced poultry meat by autofluorescence spectroscopy. J. Food Sci. , 65, 87.
Mielnik M. , 'Non-destructive assessment of lipid oxidation in minced poultry meat by autofluorescence spectroscopy ' (2000 ) 65 J. Food Sci. : 87 -.
Wold, J. P., Mielnik, M. K., Pettersen, K. A., Baardseth, P. (2002) Rapid assessment of rancidity in complex meat products by front-face fluorescence spectroscopy. J. Food Sci. , 76(6): 2397–2404.
Baardseth P. , 'Rapid assessment of rancidity in complex meat products by front-face fluorescence spectroscopy ' (2002 ) 76 J. Food Sci. : 2397 -2404 .
Xie, I., Ying, T. (2007) Quantification of chlorophyll content and classification of non-transgenic and transgenic tomato leaves using visible/near-infrared diffuse reflectance spectroscopy. J. Agric. Food Chem. , 55, 4645–4650.
Ying T. , 'Quantification of chlorophyll content and classification of non-transgenic and transgenic tomato leaves using visible/near-infrared diffuse reflectance spectroscopy ' (2007 ) 55 J. Agric. Food Chem. : 4645 -4650 .