Solid-Phase Microextraction in the Analysis of Virgin Olive Oil Volatile Fraction:  Modifications Induced by Oxidation and Suitable Markers of Oxidative Status

2003 ◽  
Vol 51 (22) ◽  
pp. 6564-6571 ◽  
Author(s):  
Stefania Vichi ◽  
Lorena Pizzale ◽  
Lanfranco S. Conte ◽  
Susana Buxaderas ◽  
Elvira López-Tamames
Keyword(s):  
Olive Oil ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Virgin Olive Oil ◽  
Oxidative Status ◽  
Volatile Fraction

Solid-Phase Microextraction in the Analysis of Virgin Olive Oil Volatile Fraction:  Characterization of Virgin Olive Oils from Two Distinct Geographical Areas of Northern Italy

2003 ◽  
Vol 51 (22) ◽  
pp. 6572-6577 ◽  
Author(s):  
Stefania Vichi ◽  
Lorena Pizzale ◽  
Lanfranco S. Conte ◽  
Susana Buxaderas ◽  
Elvira López-Tamames
Keyword(s):  
Olive Oil ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Virgin Olive Oil ◽  
Northern Italy ◽  
Volatile Fraction ◽  
Virgin Olive Oils ◽  
Olive Oils

Delineating the extra-virgin olive oil aroma blueprint by multiple headspace solid phase microextraction and differential-flow modulated comprehensive two-dimensional gas chromatography

2021 ◽  
pp. 462232
Author(s):  
Federico Stilo ◽  
Maria del Pilar Segura Borrego ◽  
Carlo Bicchi ◽  
Sonia Battaglino ◽  
Raquel Maria Callejón Fernadez ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Olive Oil ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Two Dimensional ◽  
Headspace Solid Phase Microextraction ◽  
Differential Flow

scholarly journals Implementation of the Sono-Heat-Exchanger in the Extra Virgin Olive Oil Extraction Process: End-User Validation and Analytical Evaluation

Molecules ◽  
2019 ◽  
Vol 24 (13) ◽  
pp. 2379 ◽  
Author(s):  
Lorenzo Cecchi ◽  
Maria Bellumori ◽  
Filomena Corbo ◽  
Gualtiero Milani ◽  
Maria Lisa Clodoveo ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Olive Oil ◽  
High Performance ◽  
Solid Phase ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Array Detector ◽  
Volatile Fraction ◽  
End User

The use of innovative systems, such as the heat exchanger, for production of extra virgin olive oil should allow maintenance of the same quality of those oils derived from traditional processes, and presents specific advantages. The performance of this system was evaluated by (i) determining the parameters directly measurable by the olive millers (i.e., end-user validation based on the production yields when the plant is located in different processing lines) and (ii) assessing the product quality through estimation of the content of phenolic and volatile compounds. The phenols were determined by High Performance Liquid Chromatography with Diode Array Detector (HPLC–DAD) before and after acidic hydrolysis while the volatile fraction was studied by Head-Space Solid-Phase-Micro-Extraction Gas-Chromatography with Mass Detector (HS–SPME–GC–MS). The use of the sono-heat-exchanger presents several advantages: it is a flexible machine, able to interface with all devices of the world’s leading manufacturers of the Extra Virgin Olive Oil (EVOO) extraction plant, and it guarantees shorter processing times and energy savings. Our results also pointed out its capability to increase the oil yields up to 5.5%, particularly when it extracts oil from unripe fruits, which in traditional processes yield oils with higher phenolic contents, but with lower oil yields. Overall, the quality of virgin olive oils was maintained, avoiding decreases of phenolic content or detrimental effects on the sensory characteristics.

scholarly journals Comparison of the Novel Thin Film-Solid Phase Microextraction and Sorptive Extraction Methods for Picual and Hojiblanca Olive Oil Volatile Fraction Analysis in Headspace

Foods ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 748
Author(s):  
M. Pilar Segura-Borrego ◽  
Rocío Ríos-Reina ◽  
Cristina Ubeda ◽  
Raquel M. Callejón ◽  
M. Lourdes Morales
Keyword(s):  
Thin Film ◽  
Olive Oil ◽  
Solid Phase Microextraction ◽  
Sampling Methods ◽  
Solid Phase ◽  
Volatile Fraction ◽  
Intermediate Precision ◽  
New Device ◽  
Sorptive Extraction ◽  
Olive Variety

For first time, the new device named thin film solid phase microextraction (TF-SPME) has been used to determine the volatile profile of the Picual and Hojiblanca varieties of extra virgin olive oils. To this end, different traditional sampling methods such as headspace sorptive extraction (HSSE) with polydimethylsiloxane (PDMS) and polyethyleneglycol-modified silicone (EG/Silicone) Twisters® have been compared with the TF-SPME devices coated with different extraction polymeric phases. PARADISe software was used as a non-targeting method to process all data. The best results were obtained by HSSE-PDMS and 2TF-SPME. Moreover, the 2TF-SPME extraction method achieved the most adequate results of linearity for most compounds, according to F-values, while the intermediate precision results were similar for both 2TF-SPME and HSSE-PDMS sampling methods. Different sensitivity was observed between both sampling methods depending on the volatile compound, without being clearly influenced by the polarity of them. Although both sampling methods enabled the main active aroma of olive oil to be determined and for them to be differentiated according to olive variety, the 2TF-SPME method appears to be the most suitable for this goal.

scholarly journals Highly Informative Fingerprinting of Extra-Virgin Olive Oil Volatiles: The Role of High Concentration-Capacity Sampling in Combination with Comprehensive Two-Dimensional Gas Chromatography

Separations ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 34 ◽  
Author(s):  
Federico Stilo ◽  
Chiara Cordero ◽  
Barbara Sgorbini ◽  
Carlo Bicchi ◽  
Erica Liberto
Keyword(s):  
Gas Chromatography ◽  
Olive Oil ◽  
Solid Phase ◽  
Virgin Olive Oil ◽  
Extra Virgin Olive Oil ◽  
Volatile Fraction ◽  
Relative Distribution ◽  
Two Dimensional ◽  
High Concentration ◽  
Sorptive Extraction

The study explores the complex volatile fraction of extra-virgin olive oil by combining high concentration-capacity headspace approaches with comprehensive two-dimensional gas chromatography, which is coupled with time of flight mass spectrometry. The static headspace techniques in this study are: (a) Solid-phase microextraction, with multi-polymer coating (SPME- Divinylbenzene/Carboxen/Polydimethylsiloxane), which is taken as the reference technique; (b) headspace sorptive extraction (HSSE) with either a single-material coating (polydimethylsiloxane—PDMS) or a dual-phase coating that combines PDMS/Carbopack and PDMS/EG (ethyleneglycol); (c) monolithic material sorptive extraction (MMSE), using octa-decyl silica combined with graphite carbon (ODS/CB); and dynamic headspace (d) with either PDMS foam, operating in partition mode, or Tenax TA™, operating in adsorption mode. The coverage of both targeted and untargeted 2D-peak-region features, which corresponds to detectable analytes, was examined, while concentration factors (CF) for a selection of informative analytes, including key-odorants and off-odors, and homolog-series relative ratios were calculated and the information capacity was discussed. The results highlighted the differences in concentration capacities, which were mainly caused by polymer-accumulation characteristics (sorptive/adsorptive materials) and its amount. The relative concentration capacity for homologues and potent odorants was also discussed, while headspace linearity and the relative distribution of analytes, as a function of different sampling amounts, was examined. This last point is of particular interest in quantitative studies where accurate data is needed to derive consistent conclusions.

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