Nutraceutical potential and antioxidant benefits of red pitaya (Hylocereus polyrhizus) extracts
Polyphenols from flesh and peels of red pitaya (Hylocereus polyrhizus) fruit were quantified by employing an extract sub-fractionation procedure applied for the first time to this fruit. Higher polyphenolic contents than those from the literature were measured by using analogous spectroscopic techni...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2012-01-01
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| Series: | Journal of Functional Foods |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1756464611000909 |
| _version_ | 1831557484849922048 |
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| author | Gian Carlo Tenore Ettore Novellino Adriana Basile |
| author_facet | Gian Carlo Tenore Ettore Novellino Adriana Basile |
| author_sort | Gian Carlo Tenore |
| collection | DOAJ |
| description | Polyphenols from flesh and peels of red pitaya (Hylocereus polyrhizus) fruit were quantified by employing an extract sub-fractionation procedure applied for the first time to this fruit. Higher polyphenolic contents than those from the literature were measured by using analogous spectroscopic techniques to those reported in previous works. Betacyanin fractions exhibited the highest reducing and radical-scavenging capacities among the extracts and fractions tested by FRAP and DPPH assays, respectively. Finally, polyphenolic fractions showed a broad antimicrobial spectrum by inhibiting the growth of all of food-borne pathogens tested, while the non-fractionated extracts revealed a very low or no activity. Results indicated flesh as a good source of antioxidants with healthy benefits for human diet and peels as a valuable manufacture by-product to be exploited for the formulation of nutraceuticals and food applications. |
| first_indexed | 2024-12-17T04:53:03Z |
| format | Article |
| id | doaj.art-bc038293e17944848ea9930aa6129f11 |
| institution | Directory Open Access Journal |
| issn | 1756-4646 |
| language | English |
| last_indexed | 2024-12-17T04:53:03Z |
| publishDate | 2012-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Functional Foods |
| spelling | doaj.art-bc038293e17944848ea9930aa6129f112022-12-21T22:02:51ZengElsevierJournal of Functional Foods1756-46462012-01-0141129136Nutraceutical potential and antioxidant benefits of red pitaya (Hylocereus polyrhizus) extractsGian Carlo Tenore0Ettore Novellino1Adriana Basile2Dipartimento di Chimica Farmaceutica e Tossicologica, University of Naples Federico II, Via D. Montesano 49, 80131 Napoli, Italy; Corresponding author: Tel./fax: +39 081 678610.Dipartimento di Chimica Farmaceutica e Tossicologica, University of Naples Federico II, Via D. Montesano 49, 80131 Napoli, ItalySezione di Biologia Vegetale, Dipartimento delle Scienze Biologiche, University of Naples Federico II, Napoli, ItalyPolyphenols from flesh and peels of red pitaya (Hylocereus polyrhizus) fruit were quantified by employing an extract sub-fractionation procedure applied for the first time to this fruit. Higher polyphenolic contents than those from the literature were measured by using analogous spectroscopic techniques to those reported in previous works. Betacyanin fractions exhibited the highest reducing and radical-scavenging capacities among the extracts and fractions tested by FRAP and DPPH assays, respectively. Finally, polyphenolic fractions showed a broad antimicrobial spectrum by inhibiting the growth of all of food-borne pathogens tested, while the non-fractionated extracts revealed a very low or no activity. Results indicated flesh as a good source of antioxidants with healthy benefits for human diet and peels as a valuable manufacture by-product to be exploited for the formulation of nutraceuticals and food applications.http://www.sciencedirect.com/science/article/pii/S1756464611000909Red pitaya fruitsEdible and non-edible portionsAntioxidant capacityAntimicrobial activity |
| spellingShingle | Gian Carlo Tenore Ettore Novellino Adriana Basile Nutraceutical potential and antioxidant benefits of red pitaya (Hylocereus polyrhizus) extracts Journal of Functional Foods Red pitaya fruits Edible and non-edible portions Antioxidant capacity Antimicrobial activity |
| title | Nutraceutical potential and antioxidant benefits of red pitaya (Hylocereus polyrhizus) extracts |
| title_full | Nutraceutical potential and antioxidant benefits of red pitaya (Hylocereus polyrhizus) extracts |
| title_fullStr | Nutraceutical potential and antioxidant benefits of red pitaya (Hylocereus polyrhizus) extracts |
| title_full_unstemmed | Nutraceutical potential and antioxidant benefits of red pitaya (Hylocereus polyrhizus) extracts |
| title_short | Nutraceutical potential and antioxidant benefits of red pitaya (Hylocereus polyrhizus) extracts |
| title_sort | nutraceutical potential and antioxidant benefits of red pitaya hylocereus polyrhizus extracts |
| topic | Red pitaya fruits Edible and non-edible portions Antioxidant capacity Antimicrobial activity |
| url | http://www.sciencedirect.com/science/article/pii/S1756464611000909 |
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