Determination of bioactive compounds in extra virgin olive oils from 19 Moroccan areas using liquid chromatography coupled to mass spectrometry: a study over two successive years

Lechhab, Touria; Salmoun, Farida; Lechhab, Wafaê; Majdoub, Yassine Oulad El; Russo, Marina; Camillo, Maria Rita Testa; Trovato, Emanuela; Dugo, Paola; Mondello, Luigi; Cacciola, Francesco

doi:10.1007/s00217-021-03842-7

Cited by 21 publications

(17 citation statements)

References 42 publications

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“…The biophenol contents were analysed to investigate discriminations between different regions. In addition, Lechhab et al, 2021 [ 135 ], detected phenolic compounds, as well as five Vitamin E isomers, using HPLC–PDA-ESI–MS and NP (normal phase) HPLC-FLD. Moroccan EVOOs were discriminated in five zones, indicating the discrimination of olive oil quality in terms of geographical origin as well as influence of the pedoclimatic factors, the crop year of production, and the harvest time.…”

Section: Mass Spectrometry (Ms)-based Studiesmentioning

confidence: 99%

Geographical Origin Assessment of Extra Virgin Olive Oil via NMR and MS Combined with Chemometrics as Analytical Approaches

Calò

Girelli

Wang

et al. 2022

Foods

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Geographical origin assessment of extra virgin olive oil (EVOO) is recognised worldwide as raising consumers’ awareness of product authenticity and the need to protect top-quality products. The need for geographical origin assessment is also related to mandatory legislation and/or the obligations of true labelling in some countries. Nevertheless, official methods for such specific authentication of EVOOs are still missing. Among the analytical techniques useful for certification of geographical origin, nuclear magnetic resonance (NMR) and mass spectroscopy (MS), combined with chemometrics, have been widely used. This review considers published works describing the use of these analytical methods, supported by statistical protocols such as multivariate analysis (MVA), for EVOO origin assessment. The research has shown that some specific countries, generally corresponding to the main worldwide producers, are more interested than others in origin assessment and certification. Some specific producers such as Italian EVOO producers may have been focused on this area because of consumers’ interest and/or intrinsic economical value, as testified also by the national concern on the topic. Both NMR- and MS-based approaches represent a mature field where a general validation method for EVOOs geographic origin assessment could be established as a reference recognised procedure.

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Section: Mass Spectrometry (Ms)-based Studiesmentioning

confidence: 99%

Geographical Origin Assessment of Extra Virgin Olive Oil via NMR and MS Combined with Chemometrics as Analytical Approaches

Calò

Girelli

Wang

et al. 2022

Foods

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“…Notably, because of global warming, climate change causes some effects on olive yields qualitatively and quantitatively (even if the olive tree has immense resistance to different climate and soil conditions). Such a study is complementary to our previous work (Lechhab et al, 2021), where we investigated the impact of the crop year and the origin area (including pedoclimatic conditions) on the bioactive fraction of Moroccan olive oils.…”

Section: Core Ideasmentioning

confidence: 95%

“…After drying and sieving soils through 0.2‐ and 2‐mm mesh screens, the analysis of texture, pH, conductivity, total limestone (CaCO 3 ), total nitrogen, available potassium (K 2 O), total organic carbon, and organic matter were conducted as described in our precedent paper (Lechhab et al., 2021). Additionally, available phosphorus (P 2 O 5 ) was carried out using the Olsen method, and the exchangeable cations (Ca 2+ , Mg 2+ , K + , and Na + ) have been extracted by standard ammonium acetate and quantified by Flame Photometer.…”

Section: Methodsmentioning

confidence: 99%

“…• Impact of edaphoclimatic conditions and crop season on olive oil fatty acids was studied. (Lechhab et al, 2021;Moroccan Olive Oil, 2020).…”

Section: Core Ideasmentioning

confidence: 99%

“…Additionally, ‘Picholine Marocaine’ is the principal cultivar produced in the country on 96% of the plantations (Ministry of Agriculture, Maritime Fisheries, Rural Development and Water and Forests, 2014). It is characterized by the highest adaptation to the Moroccan edaphoclimatic conditions, the dual purpose for table and olive oil production, and the high phenolic compound amounts (Lechhab et al., 2021; Moroccan Olive Oil, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Impact of edaphoclimatic conditions and crop season on olive oil's fatty acids

Lechhab

Trovato

et al. 2022

Agronomy Journal

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The olive tree (Olea europaea L.) fruit oil attracts widespread interest because of its high content of monounsaturated fatty acids. However, a neglected area in the field is the edaphoclimatic factors impact, which is poorly understood. Bearing this in mind, the purpose of this investigation was to evaluate the impact of the edaphoclimatic conditions on the fatty acids' composition. Therefore, we have investigated the fatty acids methyl ester (FAME) profile in 38 monovarietal Moroccan 'Picholine Marocaine' extra-virgin olive oils (EVOOs) from two successive crop years (2018-2019 and 2019-2020). Significant differences were detected in olive oils from distinct geographical origins with about 10 and 4% of the difference in oleic and palmitic acid amounts in both seasons; however, linoleic acid showed 5 and 8% in 2018-2019 and 2019-2020 oils, respectively. Furthermore, regions of high altitude and low temperature resulted in olive oils rich in oleic acid and monounsaturated fatty acids (MUFAs). This study also revealed the negative impact of rainfall, sand percentage, and nitrogen on saturated fatty acids (SFAs) and of pH and conductivity on the major MUFAs. INTRODUCTIONThe olive tree (Olea europaea L.

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Comparative Study on Phenolic Profile and Biological Activities of the Aerial Parts of Sinapis pubescens L. subsp. pubescens (Brassicaceae) Wild from Sicily (Italy)

Miceli

Arena

Marino

et al. 2023

Chemistry & Biodiversity

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This work aimed to investigate Sinapis pubescens subsp. pubescens spontaneously grown in Sicily (Italy) as new potential source of active metabolites; specifically, a comparative study on leaf, flower, and stem hydroalcoholic extracts was performed. Polyphenols were quantitatively determined by spectrophotometric methods and characterized by HPLC‐PDA/ESI‐MS; a total of 55 polyphenolic compounds were identified, highlighting considerably different qualitative‐quantitative profiles. The extracts showed antioxidant activity, evaluated by in vitro assays; particularly, the leaf extract displayed the best radical scavenging activity (DPPH test) and reducing power, while the flower extract showed the greatest chelating activity. The antimicrobial properties of the extracts were investigated against bacteria and yeasts by standard methods; no antimicrobial activity was found against the strains tested. The extracts resulted to be non‐toxic after preliminary toxicity evaluation by the Artemia salina lethality bioassay. The aerial parts of S. pubescens subsp. pubescens proved to be valuable sources of antioxidants for pharmaceutical and nutraceutical applications.

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Determination of bioactive compounds in extra virgin olive oils from 19 Moroccan areas using liquid chromatography coupled to mass spectrometry: a study over two successive years

Cited by 21 publications

References 42 publications

Geographical Origin Assessment of Extra Virgin Olive Oil via NMR and MS Combined with Chemometrics as Analytical Approaches

Geographical Origin Assessment of Extra Virgin Olive Oil via NMR and MS Combined with Chemometrics as Analytical Approaches

Impact of edaphoclimatic conditions and crop season on olive oil's fatty acids

Comparative Study on Phenolic Profile and Biological Activities of the Aerial Parts of Sinapis pubescens L. subsp. pubescens (Brassicaceae) Wild from Sicily (Italy)

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