Monitoring of pistachio (<i>Pistacia Vera</i>) ripening by high field nuclear magnetic resonance spectroscopy

Sciubba, Fabio; Avanzato, D.; Vaccaro, A.; Capuani, Giorgio; Spagnoli, Mariangela; Cocco, Maria Enrica Di; Tzareva, I.; Delfini, Maurizio

doi:10.1080/14786419.2016.1242003

Cited by 12 publications

(7 citation statements)

References 15 publications

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“…The experimental protocol consists of a priming extraction over pistachio raw material using two immiscible phases: an aqueous phase for the extraction of polar compounds and a chloroform phase for the extraction of apolar compounds. As a consequence, the main goal of this strategy was the simultaneous obtainment of the oil (PO) and the hydrophilic fraction (PWS) which were then analyzed independently, unlike previous studies focusing either on the polar [23][24][25] or the apolar [22] phase. Figures 1 and 2 display the PO and PWS 1 H-NMR profiles, respectively, along with the main identified chemical species.…”

Section: Resultsmentioning

confidence: 99%

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Comprehensive Chemical Characterization of the Pistacia vera Fruits through Original NMR Quantification Methods

2020

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(1) Background: Pistacia vera is a dry fruit spread all over the world, commonly known as pistachio, and is very appreciated as a snack, as a precious ingredient for confectionery industries and also as a blessed touch for gourmet dishes; (2) Methods: The simultaneous NMR profiles concerning the hydrophilic and hydrophobic phases, enabled by a specific throughput over grinded pistachio seeds, led to the comprehensive chemical characterization of these nuts coming from different territories; (3) Results: The customized extraction method is described in detail as well as the employed nuclear magnetic resonance (NMR) experiments. The chemical quantification takes advantage from the innovative multi-assignment recovered analysis (MARA-NMR) technique able to provide experimentally robust panels for both hydrophobic and hydrophilic chemicals. Beyond the assessed repeatability and the interesting statistical discrimination, this paper adds information about the quantitative and qualitative composition of pistachio as inferred by NMR data. This updated background can pave the way toward the development of wider and wider chemical panels improving the knowledge about the pistachio’s composition. This approach can be easily extended to other matrices.

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Section: Resultsmentioning

confidence: 99%

“…Specifically, the chemical profile of pistachio seeds was disclosed through several NMR analyses independently, focusing on the oil composition made by triglycerides [22] and on the water soluble phase rich in peculiar saccharides, amino-acids and other interesting metabolites [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Chemical Characterization of the Pistacia vera Fruits through Original NMR Quantification Methods

2020

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“…These compounds are natural colorants largely employed by the food industry [17,18]. The observed beneficial effects of RBs are relatable to their phytochemical profile, that in turn depends on agronomic and pedoclimatic conditions [19][20][21][22]. Indeed, an high biochemical variability, related to cultivar specificity and geographical origin, has been shown in previous studies [23][24][25], but yet the variability of the RB chemical composition, induced by harvest time and seasonality, has not been deeply investigated.…”

Section: Introductionmentioning

confidence: 99%

Red Beetroot’s NMR-Based Metabolomics: Phytochemical Profile Related to Development Time and Production Year

Giampaoli

Sciubba

Conta

et al. 2021

Foods

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Red beetroot (RB) is a well-known health-promoting food consumed worldwide. RB is commonly used in food processing and manufacturing thanks to the high content of components that can also be employed as natural coloring agents. These bioactive molecules vary their concentration depending on beetroot seasonality, harvest time and climate conditions. The first objective of this study was to evaluate the variation of the RB phytochemical profile related to the root development during three different harvest times, using an 1H-NMR-based metabolomic approach. Changes of carbohydrates and secondary metabolite concentrations were observed from July to September. Secondly, we compared the metabolic profiles of the final processed beet juices in three different production years to observe the effect of climate conditions on the RB’s final product metabotype. A PCA analysis performed on juice extracts showed that production years 2016 and 2017 were characterized by a high content of choline and betaine, while 2018 by a high content of amino acids and dopamine and a low content of inorganic nitrates. This study suggests that the harvest time and roots growth conditions could be used to modulate the RB phytochemical profile, according to the final requirements of use, food or coloring agent source.

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“…On the basis of the metabolic profile obtained from NMR experiments, it has been possible to identify a wide range of metabolites with a single analysis allowing to evaluate various food characteristics, regarding quality, authentication, geographical origin, as well as secondary metabolites with potential nutraceutical properties [35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

NMR-Based Metabolomic Comparison of Brassica oleracea (Var. italica): Organic and Conventional Farming

Lucarini¹,

Cocco

Raguso

et al. 2020

Foods

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Brassicaceae family provides several crops which are worldwide known for their interesting phytochemical profiles, especially in terms of content of glucosinolates. These secondary metabolites show several beneficial effects toward consumers’ health, and several studies have been conducted to identify cultivation factors affecting their content in crops. One of the agronomic practices which is attracting growing interest is the organic one, which consists in avoiding the use of mineral fertilizers as well as pesticides. The aim of this study is to define the metabolic profile of Brassica oleracea (var. italica) and to compare the samples grown using organic and conventional fertilization methods. The hydroalcoholic and organic extracts of the samples have been analyzed by NMR spectroscopy. Forty-seven metabolites belonging to the categories of organic acids, amino acids, carbohydrates, fatty acids, sterols, and other molecules have been identified. Thirty-seven metabolites have been quantified. Univariate and multivariate PCA analyses allowed to observe that the organic practice influenced the nitrogen transport, the carbohydrate metabolism, the glucosinolate content and the phenylpropanoid pathway in B. oleracea (var. italica).

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Monitoring of pistachio (Pistacia Vera) ripening by high field nuclear magnetic resonance spectroscopy

Cited by 12 publications

References 15 publications

Comprehensive Chemical Characterization of the Pistacia vera Fruits through Original NMR Quantification Methods

Comprehensive Chemical Characterization of the Pistacia vera Fruits through Original NMR Quantification Methods

Red Beetroot’s NMR-Based Metabolomics: Phytochemical Profile Related to Development Time and Production Year

NMR-Based Metabolomic Comparison of Brassica oleracea (Var. italica): Organic and Conventional Farming

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