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/ http://irep.iium.edu.my/1333/ http://irep.iium.edu.my/1333/1/Antioxidant_study_of_pulps_and_peels_of_dragon_fruits-A_comparative_study.pdf

id	iium-1333
recordtype	eprints
spelling	iium-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 PeerReviewed 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
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
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/ http://irep.iium.edu.my/1333/ http://irep.iium.edu.my/1333/1/Antioxidant_study_of_pulps_and_peels_of_dragon_fruits-A_comparative_study.pdf
first_indexed	2023-09-18T20:08:36Z
last_indexed	2023-09-18T20:08:36Z
_version_	1777407325891461120

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

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