Derivatized volatile organic compound characterization of Friulano wine from Collio (Italy–Slovenia) by HS-SPME-GC-MS and discrimination from other varieties by chemometrics
نویسندگان
چکیده
Purpose Methods to assess the authenticity and traceability of wines have been extensively studied as enhancers food quality, allowing producers obtain market recognition premium prices. Among analytical techniques, volatilome profile attained by gas chromatography coupled with mass spectrometry is acquiring more attention scientific community, together use chemometrics Design/methodology/approach The three varieties blanc from Collio area (namely Ribolla Gialla, Malvasia Friulano) between Italy Slovenia, was determined head space-solid phase micro extraction-gas chromatography-mass spectrometry, enhancing carbonyl compounds identification O-(2, 3, 4, 5, 6-pentafluorobenzyl)-hydroxylamine aim identifying autochthonous Friulano variety. Findings A two-step chemometric approach based on an unsupervised technique (PCA) followed a supervised one (PLS-DA) allowed identify possible markers for discriminating variety others, in particular two chemical classes were identified PCA (ketones long chain esters). PLS-DA showed 87% accuracy classification. correct classification (i.e. non-Friulano Collio) group obtained same grape but produced extra-Collio well. results confirmed benefits using derivatization step prior volatile organic analysis. Research limitations/implications methods wines, enhanced compound identifications 6-pentafluorobenzyl)-hydroxylamine, may key role conjunction and, principal component analysis partial least square discriminant Practical implications wine, 6-Pentafluorobenzyl)Hydroxylamine hydrochloride, chemometrics. Originality/value Few works investigated both wine enhancer obtaining such improvement this discrimination.
منابع مشابه
Identification of Volatile Organic Compounds from Trichoderma virens (6011) by GC-MS and Separation of a Bioactive Compound via Nanotechnology
Fungal volatile organic compounds (VOCs) have the potential of being used as biocontrol agents for biotechnological applications in agriculture, industry and medicine. In this research, different VOCs from secondary metabolites of biocontrol fungus Trichoderma virens (6011) KP671477 were separated using n-hexane, n-butanol and methanol solvents and identified by gas chromatography–mass spectrom...
متن کاملRapid determination of volatile compounds emitted from Chimonanthus praecox flowers by HS-SPME-GC-MS.
A novel rapid, simple and solvent-free method was developed for determination of the volatile compounds from the flowers of Chimonanthus praecox Link using headspace solid-phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS). The SPME conditions were firstly optimized and applied to sampling of the volatile compounds emitted from living Chimonanthus praecox L. flower...
متن کاملMethod development by GC-ECD and HS-SPME-GC-MS for beer volatile analysis.
Two methods for the extraction, identification and quantification of the highest occurrence and lowest perception threshold off-flavours in fifteen different samples of Brazilian Pilsner beers were developed. For this purpose, headspace solid phase microextraction in combination with a gas chromatography coupled to a mass spectrometric detection (HS-SPME-GC-MS) as well as headspace extraction i...
متن کاملQuantification of Polyfunctional Thiols in Wine by HS-SPME-GC-MS Following Extractive Alkylation.
Analyses of key odorous polyfunctional volatile thiols in wines (3-mercaptohexanol (3-MH), 3-mercaptohexylacetate (3-MHA), and 4-mercapto-4-methyl-2-pentanone (4-MMP)) are challenging due to their high reactivity and ultra-trace concentrations, especially when using conventional gas-chromatography electron impact mass spectrometry (GC-EI-MS). We describe a method in which thiols are converted t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: British Food Journal
سال: 2021
ISSN: ['0007-070X', '1758-4108']
DOI: https://doi.org/10.1108/bfj-08-2020-0690