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Natural Product Research
Formerly Natural Product Letters
Volume 35, 2021 - Issue 22
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Short Communications

Blood orange (Citrus sinensis) as a rich source of nutraceuticals: investigation of bioactive compounds in different parts of the fruit by HPLC-PDA/MS

Marina Russoa Department of Sciences and Technologies for Human and Environment, University Campus Bio-Medico of Rome, Rome, ItalyCorrespondence[email protected] [email protected]
ORCID Iconhttps://orcid.org/0000-0002-8229-1010
ORCID Icon,
Ivana Lidia Bonaccorsib Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, ItalyORCID Iconhttps://orcid.org/0000-0002-1410-1131
ORCID Icon,
Adriana Arigòb Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, ItalyORCID Iconhttps://orcid.org/0000-0003-3057-0285
ORCID Icon,
Francesco Cacciolac Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, Messina, ItalyCorrespondence[email protected] [email protected]
ORCID Iconhttps://orcid.org/0000-0003-1296-7633
ORCID Icon,
Laura De Garaa Department of Sciences and Technologies for Human and Environment, University Campus Bio-Medico of Rome, Rome, ItalyORCID Iconhttps://orcid.org/0000-0001-5938-7113
ORCID Icon,
Paola Dugoa Department of Sciences and Technologies for Human and Environment, University Campus Bio-Medico of Rome, Rome, Italy;b Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy;d Chromaleont s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, ItalyORCID Iconhttps://orcid.org/0000-0002-9432-1782
ORCID Icon &
Luigi Mondelloa Department of Sciences and Technologies for Human and Environment, University Campus Bio-Medico of Rome, Rome, Italy;b Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy;d Chromaleont s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy;e BeSep s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, ItalyORCID Iconhttps://orcid.org/0000-0002-8890-675X
ORCID Icon show all
Pages 4606-4610 | Received 03 Oct 2019, Accepted 10 Nov 2019, Published online: 29 Nov 2019
 
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Abstract

This study is part of a wider investigation aimed to sustain the economical value of the by-products generated by the Citrus industry. In particular, the protected geographic indication (PGI) red orange of sicily (known as blood orange) has been analysed by HPLC and by the enzymatic AOAC method. All the by-products contain significant amounts of biologically active compounds (limonoids and flavonoids). The decanted pulps were the most abundant, with the highest amount of flavonoids (130 g/kg) and high amount of limonoids (5.5 g/kg). Seeds were the best source of limonoids with about 10 g/kg. Low amount of anthocyanins were found only in coarse pulps and waste water. The total, the insoluble and the soluble dietary fibre (TDF, IDF and SDF respectively) were also determined. The pulps resulted to be the best source of dietary fibre, based on the amount and on the best insoluble/soluble ratio.

Graphical Abstract

Acknowledgements

The authors are thankful to Shimadzu and Merck Life Science for the continuous support.

Disclosure statement

No potential conflict of interest was reported by the authors.

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