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Antioxidant study of pulps and peels of dragon fruits: a comparative study

The aim of this study is to compare antioxidant level and activities (i.e. primary and secondary) in pulps and peels of two species of dragon fruits, Hylocereus undatus (white dragon fruit) and Hylocereus polyrhizus (red dragon fruit). Total phenolic content (TPC) assay demonstrated that peels of bo...

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Main Authors: Ruzlan, Nurliyana, Syed Osman Idid, Syed Zahir Idid, Koya, Mustapha Suleiman, Mohamed Rehan, Aisyah, Kamarudin, Kamarul Rahim
Format: Article
Language:English
Published: Faculty of Food Science and Technology, Universiti Putra Malaysia 2010
Subjects:
Q Science (General)
Online Access:http://irep.iium.edu.my/1333/1/Antioxidant_study_of_pulps_and_peels_of_dragon_fruits-A_comparative_study.pdf
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spelling my.iium.irep.13332011-12-19T23:52:04Z http://irep.iium.edu.my/1333/ Antioxidant study of pulps and peels of dragon fruits: a comparative study Ruzlan, Nurliyana Syed Osman Idid, Syed Zahir Idid Koya, Mustapha Suleiman Mohamed Rehan, Aisyah Kamarudin, Kamarul Rahim Q Science (General) The aim of this study is to compare antioxidant level and activities (i.e. primary and secondary) in pulps and peels of two species of dragon fruits, Hylocereus undatus (white dragon fruit) and Hylocereus polyrhizus (red dragon fruit). Total phenolic content (TPC) assay demonstrated that peels of both Hylocereus species contained higher phenolic content than the pulps. The phenolic content in peels of H. undatus was higher than H. polyrhizus, but the phenolic content in pulps of H. undatus was much lower than H. polyrhizus. 2, 2, diphenyl-1-picrylhydrazyl (DPPH) assay showed that radical scavenging activities of peels for both species were higher than the pulps. For ferrous ion chelating (FIC) assay, peels and pulps of both Hylocereus species showed moderate metal ion chelating effect as compared to EDTA. Overall, the results suggested that the TPC showed good relationship with the primary antioxidant activities for general comparison between the peels and the pulps. Faculty of Food Science and Technology, Universiti Putra Malaysia 2010 Article REM application/pdf en http://irep.iium.edu.my/1333/1/Antioxidant_study_of_pulps_and_peels_of_dragon_fruits-A_comparative_study.pdf Ruzlan, Nurliyana and Syed Osman Idid, Syed Zahir Idid and Koya, Mustapha Suleiman and Mohamed Rehan, Aisyah and Kamarudin, Kamarul Rahim (2010) Antioxidant study of pulps and peels of dragon fruits: a comparative study. International Food Research Journal, 17 (2). pp. 367-375. ISSN 19854668 (P), 22317546 (O) http://www.ifrj.upm.edu.my/previousissues.html
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic Q Science (General)
spellingShingle Q Science (General)
Ruzlan, Nurliyana
Syed Osman Idid, Syed Zahir Idid
Koya, Mustapha Suleiman
Mohamed Rehan, Aisyah
Kamarudin, Kamarul Rahim
Antioxidant study of pulps and peels of dragon fruits: a comparative study
description The aim of this study is to compare antioxidant level and activities (i.e. primary and secondary) in pulps and peels of two species of dragon fruits, Hylocereus undatus (white dragon fruit) and Hylocereus polyrhizus (red dragon fruit). Total phenolic content (TPC) assay demonstrated that peels of both Hylocereus species contained higher phenolic content than the pulps. The phenolic content in peels of H. undatus was higher than H. polyrhizus, but the phenolic content in pulps of H. undatus was much lower than H. polyrhizus. 2, 2, diphenyl-1-picrylhydrazyl (DPPH) assay showed that radical scavenging activities of peels for both species were higher than the pulps. For ferrous ion chelating (FIC) assay, peels and pulps of both Hylocereus species showed moderate metal ion chelating effect as compared to EDTA. Overall, the results suggested that the TPC showed good relationship with the primary antioxidant activities for general comparison between the peels and the pulps.
format Article
author Ruzlan, Nurliyana
Syed Osman Idid, Syed Zahir Idid
Koya, Mustapha Suleiman
Mohamed Rehan, Aisyah
Kamarudin, Kamarul Rahim
author_facet Ruzlan, Nurliyana
Syed Osman Idid, Syed Zahir Idid
Koya, Mustapha Suleiman
Mohamed Rehan, Aisyah
Kamarudin, Kamarul Rahim
author_sort Ruzlan, Nurliyana
title Antioxidant study of pulps and peels of dragon fruits: a comparative study
title_short Antioxidant study of pulps and peels of dragon fruits: a comparative study
title_full Antioxidant study of pulps and peels of dragon fruits: a comparative study
title_fullStr Antioxidant study of pulps and peels of dragon fruits: a comparative study
title_full_unstemmed Antioxidant study of pulps and peels of dragon fruits: a comparative study
title_sort antioxidant study of pulps and peels of dragon fruits: a comparative study
publisher Faculty of Food Science and Technology, Universiti Putra Malaysia
publishDate 2010
url http://irep.iium.edu.my/1333/1/Antioxidant_study_of_pulps_and_peels_of_dragon_fruits-A_comparative_study.pdf
http://irep.iium.edu.my/1333/
http://www.ifrj.upm.edu.my/previousissues.html
_version_ 1643604764027518976
score 13.211869

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