{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,12]],"date-time":"2026-05-12T01:23:08Z","timestamp":1778548988274,"version":"3.51.4"},"reference-count":33,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2014,2,20]],"date-time":"2014-02-20T00:00:00Z","timestamp":1392854400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This study assessed the potential of near infrared (NIR) spectroscopy as a non-destructive method for characterizing Protected Designation of Origin (PDO) \u201cVinagres de Montilla-Moriles\u201d wine vinegars and for classifying them as a function of the manufacturing process used. Three spectrophotometers were evaluated for this purpose: two monochromator instruments (Foss NIRSystems 6500 SY-I and Foss NIRSystems 6500 SY-II; spectral range 400\u20132,500 nm in both cases) and a diode-array instrument (Corona  45 VIS\/NIR; spectral range 380\u20131,700 nm). A total of 70 samples were used to predict major chemical quality parameters (total acidity, fixed acidity, volatile acidity, pH, dry extract, ash, acetoin, methanol, total polyphenols, color (tonality and intensity), and alcohol content), and to construct models for the classification of vinegars as a function of the manufacturing method used. The results obtained indicate that this non-invasive technology can be used successfully by the vinegar industry and by PDO regulators for the routine analysis of vinegars in order to authenticate them and to detect potential fraud. Slightly better results were achieved with the two monochromator instruments. The findings also highlight the potential of these NIR instruments for predicting the manufacturing process used, this being of particular value for the industrial authentication of traditional wine vinegars.<\/jats:p>","DOI":"10.3390\/s140203528","type":"journal-article","created":{"date-parts":[[2014,2,20]],"date-time":"2014-02-20T11:08:24Z","timestamp":1392894504000},"page":"3528-3542","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Characterizing and Authenticating Montilla-Moriles PDO Vinegars Using Near Infrared Reflectance Spectroscopy  (NIRS) Technology"],"prefix":"10.3390","volume":"14","author":[{"given":"Mar\u00eda-Jos\u00e9","family":"De la Haba","sequence":"first","affiliation":[{"name":"Department of Bromatology and Food Technology, University of Cordoba, Campus Rabanales, Cordoba 14071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar","family":"Arias","sequence":"additional","affiliation":[{"name":"Department of Bromatology and Food Technology, University of Cordoba, Campus Rabanales, Cordoba 14071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pilar","family":"Ram\u00edrez","sequence":"additional","affiliation":[{"name":"Agricultural Research and Training Centre \"Cabra-Priego\", Instituto de Investigaci\u00f3n y Formaci\u00f3n Agraria y Pesquera (IFAPA), Consejer\u00eda de Agricultura, Pesca y Desarrollo Rural, Junta de Andaluc\u00eda, Cordoba 14071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar\u00eda-Isabel","family":"L\u00f3pez","sequence":"additional","affiliation":[{"name":"Agricultural Research and Training Centre \"Cabra-Priego\", Instituto de Investigaci\u00f3n y Formaci\u00f3n Agraria y Pesquera (IFAPA), Consejer\u00eda de Agricultura, Pesca y Desarrollo Rural, Junta de Andaluc\u00eda, Cordoba 14071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mar\u00eda-Teresa","family":"S\u00e1nchez","sequence":"additional","affiliation":[{"name":"Department of Bromatology and Food Technology, University of Cordoba, Campus Rabanales, Cordoba 14071, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2014,2,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"243","DOI":"10.1016\/S0308-8146(97)00104-0","article-title":"Characterization of Italian vinegar by pyrolysis-mass spectrometry and a sensor device (\u201celectronic nose\u201d)","volume":"61","author":"Anklam","year":"1998","journal-title":"Food Chem."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"70","DOI":"10.1021\/jf9905424","article-title":"Potent aroma compounds of two red wine vinegars","volume":"48","author":"Charles","year":"2000","journal-title":"J. Agric. Food Chem."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"236","DOI":"10.1016\/j.foodchem.2006.11.003","article-title":"Tungsten permanent chemical modifier with co-injection of Pd(NO3)2 + Mg(NO3)2 for direct determination of Pb in vinegar by graphite furnace atomic absorption spectrometry","volume":"105","author":"Oliveira","year":"2007","journal-title":"Food Chem."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1016\/0956-7135(94)00005-X","article-title":"Simultaneous automatic potentiometric determination of acidity, chloride and fluoride in vinegar","volume":"6","author":"Lapa","year":"1995","journal-title":"Food Control"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"615","DOI":"10.1016\/j.foodchem.2005.08.006","article-title":"Prediction of organic acids and other quality parameters of wine vinegar by near-infrared spectroscopy. A feasibility study","volume":"99","author":"Pizarro","year":"2006","journal-title":"Food Chem."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"590","DOI":"10.1016\/j.foodchem.2012.05.011","article-title":"Rapid measurement of total acid content (TAC) in vinegar using near infrared spectroscopy based on efficient variables selection algorithm and nonlinear regression tools","volume":"135","author":"Chen","year":"2012","journal-title":"Food Chem."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"585","DOI":"10.1007\/s12161-011-9285-2","article-title":"Application of competitive adaptive reweighted sampling method to determine effective wavelengths for prediction of total acid of vinegar","volume":"5","author":"Fan","year":"2012","journal-title":"Food Anal. Methods"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"54","DOI":"10.1007\/s11947-013-1065-0","article-title":"Measurement of soluble solid contents and pH of white vinegars using VIS\/NIR spectroscopy and least squares support vector machine","volume":"7","author":"Bao","year":"2014","journal-title":"Food Bioprocess Technol."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1016\/j.foodchem.2012.10.060","article-title":"Rapid detecting total acid content and classifying different types of vinegar based on near infrared spectroscopy and least-squares support vector machine","volume":"138","author":"Shi","year":"2013","journal-title":"Food Chem."},{"key":"ref_10","unstructured":"Ministerio de la Presidencia (1977). M\u00e9todos Oficiales de An\u00e1lisis de Aceites y Grasas, Cereales y Derivados, Productos L\u00e1cteos y Productos Derivados de la Uva (Spanish Official Analytical Methods for Oils and Fats, Cereals, Dairy Products and Enological Products), (in Spanish)."},{"key":"ref_11","unstructured":"Ministerio de la Agricultura (1993). M\u00e9todos Oficiales de An\u00e1lisis (Spanish Official Analytical Methods), Secretaria General T\u00e9cnica, Ministerio de Agricultura, Pesca y Alimentaci\u00f3n. (in Spanish)."},{"key":"ref_12","unstructured":"The International Organisation of Vine and Wine (OIV) Wine Vinegar: Measurement of Methanol, Superior Alcohols and Ethyl Acetate. Resolution OENO 70\u20132000. Available online: http:\/\/www.oiv.int\/oiv\/info\/enquestionairemethodes?lang=en2000."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"144","DOI":"10.5344\/ajev.1965.16.3.144","article-title":"Colorimetry of total phenolics with phosphomolybdic-phosphotungstic acid reagents","volume":"16","author":"Singleton","year":"1965","journal-title":"Am. J. Enol. Vitic."},{"key":"ref_14","first-page":"203","article-title":"Interpretation des courbes d'absorption des vins rouges","volume":"7","author":"Sudraud","year":"1958","journal-title":"Ann. Technol. Agric."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"923","DOI":"10.1039\/AN9962100923","article-title":"Vapour generation\u2013fourier transform infrared direct determination of ethanol in alcoholic beverages","volume":"121","author":"Garrigues","year":"1996","journal-title":"Analyst"},{"key":"ref_16","unstructured":"Shenk, J.S., and Westerhaus, M.O. (1995). Analysis of Agricultural and Food Products by Near Infrared Reflectance Spectroscopy, NIRSystems, Inc."},{"key":"ref_17","unstructured":"Williams, P.C., and Norris, K.H. (2001). Near-Infrared Technology in the Agricultural and Food Industries, American Association of Cereal Chemists, Inc."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"135","DOI":"10.1016\/S0925-5214(01)00180-6","article-title":"Vis\/NIR estimation at harvest of pre and post-storage quality indices for \u201croyal gala\u201d apple","volume":"25","author":"McGlone","year":"2002","journal-title":"Postharvest Biol. Technol."},{"key":"ref_19","unstructured":"Osborne, B.G., Fearn, T., and Hindle, P. (1993). Practical NIR Spectroscopy with Applications in Food and Beverage Analysis, Longman Scientific and Technical."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"3079","DOI":"10.1021\/jf011089a","article-title":"Rapid analysis of methanol in grape derived distillation products using near-infrared transmission spectroscopy","volume":"50","author":"Dambergs","year":"2002","journal-title":"J. Agric. Food. Chem."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"461","DOI":"10.1016\/S0922-338X(97)82008-9","article-title":"Prediction of the concentrations of ethanol and acetic acid in the culture broth of a rice vinegar fermentation using near-infrared spectroscopy","volume":"84","author":"Yano","year":"1997","journal-title":"J. Ferment. Bioeng."},{"key":"ref_22","first-page":"737","article-title":"Prediction of marked age of mature vinegar based on fourier transform near infrared spectroscopy","volume":"344","author":"An","year":"2011","journal-title":"IFIP Adv. Inf. Commun. Technol."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"2937","DOI":"10.1007\/s00216-008-2186-6","article-title":"Monitoring of substrate and product concentrations in acetic fermentation processes for onion vinegar production by NIR spectroscopy: Value addition to worthless onions","volume":"391","author":"Pizarro","year":"2008","journal-title":"Anal. Bioanal. Chem."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Wang, Z., Liu, F., and He, Y. (2009\u20132, January 31). Comparison and determination of acetic acid of plum vinegar using visible\/near infrared spectroscopy and multivariate calibration. Los Angeles, CA, USA.","DOI":"10.1109\/CSIE.2009.728"},{"key":"ref_25","unstructured":"Llaguno, C., and Polo, M.C. (1991). El Vinagre de Vino (Wine Vinegar), Consejo Superior de Investigaciones Cient\u00edficas. (in Spanish)."},{"key":"ref_26","first-page":"49","article-title":"Constituyentes caracter\u00edsticos de los vinagres v\u00ednicos andaluces (principal components of the andalusian wine vinegars)","volume":"41","author":"Troncoso","year":"1988","journal-title":"Alimentaria"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"223","DOI":"10.3136\/fstr.12.223","article-title":"Chemometrical approach for vinegar classification by headspace mass spectrometry of volatile compounds","volume":"12","author":"Casale","year":"2006","journal-title":"Food Sci. Technol. Res."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"712","DOI":"10.1002\/jsfa.3873","article-title":"A new FT-IR method combined with multivariate analysis for the classification of vinegars from different raw materials and production processes","volume":"90","year":"2010","journal-title":"J. Sci. Food Agric."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"7671","DOI":"10.1021\/jf030287u","article-title":"Volatile compounds in spanish red wine aged in barrels made of spanish, french, and american oak wood","volume":"51","author":"Jalocha","year":"2003","journal-title":"J. Agric. Food Chem."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"1432","DOI":"10.1366\/000370206779321427","article-title":"Optimization of discriminant partial least squares regression models for the detection of animal by-product meals in compound feedingstuffs by near-infrared spectroscopy","volume":"60","author":"Guerrero","year":"2006","journal-title":"Appl. Spectrosc."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1016\/S0950-3293(96)00003-1","article-title":"Sensory characterisation of wine vinegars","volume":"8","author":"Gerbi","year":"1997","journal-title":"Food Qual. Prefer."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"209","DOI":"10.1002\/jsfa.2740660215","article-title":"Characterization and differentiation of wine vinegars by multivariate analysis","volume":"66","author":"Guerrero","year":"1994","journal-title":"J. Sci. Food Agric."},{"key":"ref_33","unstructured":"Pizarro, C., Esteban, I., S\u00e1iz-Abajo, M.J., and Gonz\u00e1lez-S\u00e1iz, J.M. (2006, January 26\u201328). Caracterizaci\u00f3n y Clasificaci\u00f3n de Vinagres Seg\u00fan Materia Prima y Proceso de Elaboraci\u00f3n Mediante Espectroscop\u00eda de Infrarrojo Cercano (NIRS) (Characterization and Classification of Wine Vinegar by Raw Material and Manufacturing Process using Near Infrared Spectroscopy). Cordoba. Spain. (in Spanish)."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/14\/2\/3528\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T21:08:20Z","timestamp":1760216900000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/14\/2\/3528"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2014,2,20]]},"references-count":33,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2014,2]]}},"alternative-id":["s140203528"],"URL":"https:\/\/doi.org\/10.3390\/s140203528","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2014,2,20]]}}}