Olive Oils with Protected Designation of Origin (PDO) and Protected Geographical Indication (PGI)

Likudis, Zisimos

doi:10.5772/64909

Cited by 17 publications

(17 citation statements)

References 62 publications

(72 reference statements)

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“…Several approaches based on chemical analysis have been proposed for EVOO traceability [8,9,10,11,12], which are useful to discover some types of macroscopic adulteration, such as the addition of oil from other species. However, they present some limits due to the difficulty in identifying the olive varieties used for oil production.…”

Section: Introductionmentioning

confidence: 99%

A Robust DNA Isolation Protocol from Filtered Commercial Olive Oil for PCR-Based Fingerprinting

Piarulli¹,

Savoia²,

Taranto³

et al. 2019

Foods

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Extra virgin olive oil (EVOO) has elevated commercial value due to its health appeal, desirable characteristics and quantitatively limited production, and thus it has become an object of intentional adulteration. As EVOOs on the market might consist of a blend of olive varieties or sometimes even of a mixture of oils from different botanical species, an array of DNA-fingerprinting methods have been developed to check the varietal composition of the blend. Starting from a comparison between publicly available DNA extraction protocols, we set up a timely, low-cost, reproducible and effective DNA isolation protocol, which allows an adequate amount of DNA to be recovered even from commercial filtered EVOOs. Then, in order to verify the effectiveness of the DNA extraction protocol herein proposed, we applied PCR-based fingerprinting methods starting from the DNA extracted from three EVOO samples of unknown composition. In particular, genomic regions harboring nine simple sequence repeats (SSRs) and eight genotyping-by-sequencing-derived single nucleotide polymorphism (SNP) markers were amplified for authentication and traceability of the three EVOO samples. The whole investigation strategy herein described might favor producers in terms of higher revenues and consumers in terms of price transparency and food safety.

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Section: Introductionmentioning

confidence: 99%

A Robust DNA Isolation Protocol from Filtered Commercial Olive Oil for PCR-Based Fingerprinting

Piarulli¹,

Savoia²,

Taranto³

et al. 2019

Foods

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“…In 2012, the EU Regulation 1151/2012 introduced new guidelines on quality system for agricultural product including PDO, PGI and TSG (Traditional Specialty Guaranteed) schemes. For their well-defined geographic origin, some olive cultivars are recognized as higher quality agricultural products and included in the PDO/PGI labelling [8,9,10]. For Regulation purposes (EU 510/06, Article 2), both the PDO and PGI indicate “the name of a region, a specific place or, in exceptional cases, a country, used to describe an agricultural product or a foodstuff: originating in that region, specific place or country” [6].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, PGI definition is assigned to agricultural and food products whose at least one stage of the production process must be performed within the defined geographical area. On the contrary, for PDO, the entire production cycle must be carried out in a specific territory [6,10]. Thus, PGI labelling focuses on quality, reputation and specific characteristics related to the geographical origin [10].…”

Section: Introductionmentioning

confidence: 99%

“…On the contrary, for PDO, the entire production cycle must be carried out in a specific territory [6,10]. Thus, PGI labelling focuses on quality, reputation and specific characteristics related to the geographical origin [10]. To date, world olive oil production is concentrated (98%) in the Mediterranean basin and, in particular, Spain (45%) and Italy (15%) [11].…”

Section: Introductionmentioning

confidence: 99%

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Traceability of “Tuscan PGI” Extra Virgin Olive Oils by 1H NMR Metabolic Profiles Collection and Analysis

et al. 2018

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According to Coldiretti, Italy still continues to hold the European Quality record in extra virgin olive oils with origin designation and protected geographical indication (PDO and PGI). To date, 46 Italian brands are recognized by the European Union: 42 PDO and 4 PGI (Tuscan PGI, Calabria PGI; Tuscia PGI and PGI Sicily). Specific regulations, introduced for these quality marks, include the designation of both the geographical areas and the plant varieties contributing to the composition of the olive oil. However, the PDO and PGI assessment procedures are currently based essentially on farmer declarations. Tuscan PGI extra virgin olive oil is one of the best known Italian trademarks around the world. Tuscan PGI varietal platform is rather wide including 31 specific olive cultivars which should account for at least 95% of the product. On the other hand, while the characteristics of other popular Italian extra virgin olive oils (EVOOs) cultivars from specific geographical areas have been extensively studied (such as those of Coratina based blends from Apulia), little is still known about Tuscan PGI EVOO constituents. In this work, we performed, for the first time, a large-scale analysis of Tuscan PGI monocultivar olive oils by 1H NMR spectroscopy and multivariate statistical analyses (MVA). After genetic characterization of 217 leaf samples from 24 selected geographical areas, distributed all over the Tuscany, a number of 202 micro-milled oil samples including 10 PGI cultivars, was studied. The results of the present work confirmed the need of monocultivar genetically certified EVOO samples for the construction of 1H-NMR-metabolic profiles databases suitable for cultivar and/or geographical origin assessment. Such specific PGI EVOOs databases could be profitably used to justify the high added value of the product and the sustainability of the related supply chain.

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“…Foodstuff authentication and geographical origin certification [ 1 , 2 ] is an actual issue and an important challenge faced by different analytical methodologies. Regarding olive oils, a mandatory labeling reporting the geographical origin is required by the EU Regulation 182/11 [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

A Multi-Methodological Protocol to Characterize PDO Olive Oils

et al. 2018

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An analytical approach including Panel Test, Isotope Ratio Mass Spectrometry (IRMS) and Nuclear Magnetic Resonance (NMR) spectroscopy was proposed to characterize Italian “Colline Pontine” PDO olive oils (40 samples) of two consecutive crop years. Our approach has evidenced the high quality of these olive oils. Only 6 of 40 olive oils samples were defined as “defective” by the official Panel Test due to the detection of negative sensory attributes. The low variability of isotopic data monitored by IRMS confirmed that the olive oil samples all came from a limited geographical area. NMR spectra did not evidence any chemical composition anomaly in the investigated samples. In order to assess the influence of harvesting year over the olive oil chemical composition, the NMR analysis was extended to other 22 olive oil samples of a third harvesting year. NMR data were submitted to two different statistical methods, namely, analysis of variance (ANOVA) and principal component analysis (PCA) allowing olive oils of three consecutive harvesting years to be grouped.

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Olive Oils with Protected Designation of Origin (PDO) and Protected Geographical Indication (PGI)

Cited by 17 publications

References 62 publications

A Robust DNA Isolation Protocol from Filtered Commercial Olive Oil for PCR-Based Fingerprinting

A Robust DNA Isolation Protocol from Filtered Commercial Olive Oil for PCR-Based Fingerprinting

Traceability of “Tuscan PGI” Extra Virgin Olive Oils by 1H NMR Metabolic Profiles Collection and Analysis

A Multi-Methodological Protocol to Characterize PDO Olive Oils

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