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Article
Publication date: 11 March 2021

Sabina Licen, Elija Muzic, Sara Briguglio, Arianna Tolloi, Pierluigi Barbieri and Pasquale Giungato

Methods to assess the authenticity and traceability of wines have been extensively studied as enhancers of food quality, allowing producers to obtain market recognition and…

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Abstract

Purpose

Methods to assess the authenticity and traceability of wines have been extensively studied as enhancers of food quality, allowing producers to obtain market recognition and premium prices. Among analytical techniques, the volatilome profile attained by gas chromatography coupled with mass spectrometry is acquiring more and more attention by the scientific community, together with the use of chemometrics

Design/methodology/approach

The volatilome profile of three varieties of blanc wines from the Collio area (namely Ribolla Gialla, Malvasia and Friulano) between Italy and Slovenia, was determined by head space-solid phase micro extraction-gas chromatography-mass spectrometry, enhancing the carbonyl compounds identification with O-(2, 3, 4, 5, 6-pentafluorobenzyl)-hydroxylamine with the aim of identifying the autochthonous Friulano variety.

Findings

A two-step chemometric approach based on an unsupervised technique (PCA) followed by a supervised one (PLS-DA) allowed to identify possible markers for discriminating the Friulano Collio variety from the others, in particular two chemical classes were identified by PCA (ketones and long chain esters). PLS-DA showed 87% accuracy in classification. A correct classification (i.e. non-Friulano Collio) of a group of wines obtained from the same grape variety but produced in an extra-Collio area was obtained as well. The results confirmed the benefits of using a derivatization step prior to volatile organic compounds analysis.

Research limitations/implications

Among methods to assess the authenticity and traceability of wines, volatilome profile of wines determined by head space-solid phase micro extraction-gas chromatography-mass spectrometry, enhanced by the carbonyl compound identifications with O-(2, 3, 4, 5, 6-pentafluorobenzyl)-hydroxylamine, may have a key role in conjunction with chemometrics and, in particular with principal component analysis and partial least square discriminant analysis.

Practical implications

Among methods to assess the authenticity and traceability of Friulano wine, volatilome profile of wines determined by head space-solid phase micro extraction-gas chromatography-mass spectrometry, enhanced by the carbonyl compound identifications with O-(2, 3, 4, 5, 6-Pentafluorobenzyl)Hydroxylamine hydrochloride, may have a key role in conjunction with chemometrics.

Originality/value

Few works investigated both wine traceability with a volatilome enhancer and chemometrics of the Friulano wine variety obtaining such an improvement in this wine variety discrimination.

Details

British Food Journal, vol. 123 no. 8
Type: Research Article
ISSN: 0007-070X

Keywords

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Book part
Publication date: 14 November 2012

Abstract

Details

The Impact of HIV/AIDS on Education Worldwide
Type: Book
ISBN: 978-1-78190-233-2

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Book part
Publication date: 14 November 2012

Tavis D. Jules

This chapter is an exploratory piece to comprehend how national policies react to regional policy solutions designed to cope with the HIV/AIDS epidemic. It uses data from the…

Abstract

This chapter is an exploratory piece to comprehend how national policies react to regional policy solutions designed to cope with the HIV/AIDS epidemic. It uses data from the national strategic plans for HIV/AIDS from 13 of 15 Caribbean Community (CARICOM) members to illustrate how they interpret the regional response to the pandemic. In drawing upon the existing literature on transfer, it focuses on what I term cooperative policy transfer – explore how policy concepts flow back and forth between the national and regional levels through cohesive harmonization – to understand how new policy trends emerge. A cross-sectional analysis based on a content analysis reveals the emergence of three new policy trends distinct to the region that guide HIV/AIDS education: (i) creating a multisectoral approach; (ii) setting international targets; and (iii) establishing regional benchmarks. These new trends are identified as what I call the rise of new mutualism in education. The chapter concludes that the national and regional policy responses to HIV/AIDS in CARICOM countries, centered on new mutualism, became a rallying cry based on the belief that the Caribbean Single Market and Economy (CSME) can only function if CARICOM countries combine their resources to reverse the effect of HIV/AIDS on national educational systems.

Details

The Impact of HIV/AIDS on Education Worldwide
Type: Book
ISBN: 978-1-78190-233-2

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