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This work aimed to determine compounds in green coffee beans and find the differentiation of green coffee beans into special or traditional ones through chemometrics. For that, the levels of phenolic compounds, reducing, nonreducing, and total sugars were quantified by spectrophotometry: caffeine, trigonelline, 5\u2010hydroxymethylfurfural (5\u2010HMF), 3\u2010hydroxybenzoic, 4\u2010hydroxybenzoic, chlorogenic, caffeic, and nicotinic acids (NAs) by high\u2010performance liquid chromatography\u2013UV\u2013Vis; acetaldehyde, acetone, methanol, ethanol, and isoamyl by HS\u2010GC\u2010FID. Principal component analysis (PCA) was used to differentiate green coffee beans through the levels obtained in spectrophotometric and chromatographic analyses. Statistically, the contents of total phenolic compounds, caffeine, nonreducing sugars, total sugars, NA, 5\u2010HMF, acetaldehyde, ethanol, and ethanol\/methanol showed significant differences. The PCA made it possible to classify green coffee beans into special and traditional, in addition to understanding the attributes that influenced the differentiation between coffees. In addition, it was possible to classify green coffee beans into special and traditional, either using all parameters evaluated or only using spectrophotometric analyses. In this way, some advantages allow classification without using a trained and experienced evaluator as their previous experience can influence the results due to their expertise in a certain type of coffee, in addition to being faster and cheaper, especially regarding spectrophotometric analyses.<\/jats:p>","DOI":"10.1111\/1750-3841.16807","type":"journal-article","created":{"date-parts":[[2023,10,27]],"date-time":"2023-10-27T09:25:41Z","timestamp":1698398741000},"page":"5012-5025","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Spectrophotometry and chromatography analyses combined with chemometrics tools to differentiate green coffee beans into special or traditional"],"prefix":"10.1111","volume":"88","author":[{"given":"Winston Pinheiro","family":"Claro Gomes","sequence":"first","affiliation":[{"name":"Center for Nuclear Energy in Agriculture University of S\u00e3o Paulo  Piracicaba S\u00e3o Paulo Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gisele","family":"Gon\u00e7alves Bortoleto","sequence":"additional","affiliation":[{"name":"State Center of Technological Education \u201cPaula Souza\u201d, Technology College of Piracicaba \u201cDep. 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