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Integrated Analytical Methods to Characterize Lipids from Prosopis spp. and Ceratonia siliqua Seed Germ Flour

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Abstract

Flour from seed germ of European carob (Ceratonia siliqua) and South American algarrobo (Prosopis spp.) is a potential ingredient for health-promoting baked products. Herein, lipids from germ of three Argentinean Prosopis (P. alba, P. nigra, and P. ruscifolia) and one European carob species were characterized in detail, exploiting an array of up-to-date analytical techniques. Total lipids ranged from 7.1 to 8.1% (w/w). Linoleic acid (C18:2, ω-6) predominated the GC flame ionization detector profiles of fatty acid in all samples (43.3–50.6%). Prosopis spp. contained 6–7% of C20–C24 fatty acids and, consistently, C56–C60 triacylglycerols, as detected by MALDI-TOF mass spectrometry (MS), which were practically missing in C. siliqua germ. Phospholipids were isolated by hydroxyapatite chromatography, characterized by MALDI-TOF MS and grossly quantified by attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. Because of a relatively high content (9.5–11.8%, v/v), phospholipids might increase the antioxidant potential and improve the baking performances of flour fortified with carob and algarrobo seed germ.

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Acknowledgements

The present investigation has been carried out in the framework of the CNR/CONICET (Italy/Argentina) bilateral research agreement 2015–2016 awarded to G. M. and M. C. P.

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Authors and Affiliations

  1. Istituto di Scienze dell’Alimentazione, Consiglio Nazionale delle Ricerche (CNR), Via Roma 64, 83100, Avellino, Italy

    Francesco Siano, Maria Grazia Volpe, Gianfranco Mamone & Gianluca Picariello

  2. Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA – UNLP – CONICET), Calle 47 y 116, 1900, La Plata, Argentina

    Leonardo Sciammaro & Maria Cecilia Puppo

Authors
  1. Francesco Siano
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  2. Leonardo Sciammaro
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  3. Maria Grazia Volpe
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  4. Gianfranco Mamone
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  5. Maria Cecilia Puppo
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  6. Gianluca Picariello
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Correspondence to Maria Cecilia Puppo or Gianluca Picariello.

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Siano, F., Sciammaro, L., Volpe, M.G. et al. Integrated Analytical Methods to Characterize Lipids from Prosopis spp. and Ceratonia siliqua Seed Germ Flour. Food Anal. Methods 11, 3471–3480 (2018). https://doi.org/10.1007/s12161-018-1323-x

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  • DOI: https://doi.org/10.1007/s12161-018-1323-x

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