Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)

The extraction of pectin from dragon fruit (Hylocereus polyrhizus) peels under three different extraction conditions was identified as an alternative source of commercial pectin. In this work, dried alcohol-insoluble residues (AIR) of dragon fruit peels were treated separately with 0.25% ammonium ox...

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Main Authors:	Norazelina Sah Mohd. Ismail, Nazaruddin Ramli, Norziah Mohd. Hani, Zainudin Meon
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2012
Online Access:	http://journalarticle.ukm.my/3228/ http://journalarticle.ukm.my/3228/ http://journalarticle.ukm.my/3228/1/05_Norazelina.pdf

id	ukm-3228
recordtype	eprints
spelling	ukm-32282016-12-14T06:34:00Z http://journalarticle.ukm.my/3228/ Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan) Norazelina Sah Mohd. Ismail, Nazaruddin Ramli, Norziah Mohd. Hani, Zainudin Meon, The extraction of pectin from dragon fruit (Hylocereus polyrhizus) peels under three different extraction conditions was identified as an alternative source of commercial pectin. In this work, dried alcohol-insoluble residues (AIR) of dragon fruit peels were treated separately with 0.25% ammonium oxalate/oxalic acid at a pH of 4.6 at 85oC; 0.03 M HCl at a pH of 1.5 at 85oC; and de-ionized water at 75oC. The pectin obtained from these methods was compared in terms of yield, physicochemical properties and chemical structure. Fourier Transform Infrared Spectroscopy (FTIR) was used in the identification of dragon fruit pectins. The results showed that the pectin yield (14.96-20.14% based on dry weight), moisture content (11.13-11.33%), ash content (6.88-11.55%), equivalent weight (475.64-713.99), methoxyl content (2.98-4.34%), anhydrouronic acid (45.25-52.45%) and the degree of esterification (31.05-46.96%) varied significantly (p < 0.05) with the various extraction conditions used. Pectin extracted with ammonium oxalate gave the highest yield of pectin, with high purity and low ash content. Based on the value of methoxyl content and the degree of esterification, dragon fruit pectin can be categorized as low-methoxyl pectin. Universiti Kebangsaan Malaysia 2012-01 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/3228/1/05_Norazelina.pdf Norazelina Sah Mohd. Ismail, and Nazaruddin Ramli, and Norziah Mohd. Hani, and Zainudin Meon, (2012) Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan). Sains Malaysiana, 41 (1). pp. 41-45. ISSN 0126-6039 http://www.ukm.my/jsm/contents.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The extraction of pectin from dragon fruit (Hylocereus polyrhizus) peels under three different extraction conditions was identified as an alternative source of commercial pectin. In this work, dried alcohol-insoluble residues (AIR) of dragon fruit peels were treated separately with 0.25% ammonium oxalate/oxalic acid at a pH of 4.6 at 85oC; 0.03 M HCl at a pH of 1.5 at 85oC; and de-ionized water at 75oC. The pectin obtained from these methods was compared in terms of yield, physicochemical properties and chemical structure. Fourier Transform Infrared Spectroscopy (FTIR) was used in the identification of dragon fruit pectins. The results showed that the pectin yield (14.96-20.14% based on dry weight), moisture content (11.13-11.33%), ash content (6.88-11.55%), equivalent weight (475.64-713.99), methoxyl content (2.98-4.34%), anhydrouronic acid (45.25-52.45%) and the degree of esterification (31.05-46.96%) varied significantly (p < 0.05) with the various extraction conditions used. Pectin extracted with ammonium oxalate gave the highest yield of pectin, with high purity and low ash content. Based on the value of methoxyl content and the degree of esterification, dragon fruit pectin can be categorized as low-methoxyl pectin.
format	Article
author	Norazelina Sah Mohd. Ismail, Nazaruddin Ramli, Norziah Mohd. Hani, Zainudin Meon,
spellingShingle	Norazelina Sah Mohd. Ismail, Nazaruddin Ramli, Norziah Mohd. Hani, Zainudin Meon, Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)
author_facet	Norazelina Sah Mohd. Ismail, Nazaruddin Ramli, Norziah Mohd. Hani, Zainudin Meon,
author_sort	Norazelina Sah Mohd. Ismail,
title	Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)
title_short	Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)
title_full	Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)
title_fullStr	Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)
title_full_unstemmed	Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)
title_sort	extraction and characterization of pectin from dragon fruit (hylocereus polyrhizus) using various extraction conditions. (pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)
publisher	Universiti Kebangsaan Malaysia
publishDate	2012
url	http://journalarticle.ukm.my/3228/ http://journalarticle.ukm.my/3228/ http://journalarticle.ukm.my/3228/1/05_Norazelina.pdf
first_indexed	2023-09-18T19:38:14Z
last_indexed	2023-09-18T19:38:14Z
_version_	1777405415258062848

Extraction and characterization of pectin from dragon fruit (Hylocereus polyrhizus) using various extraction conditions. (Pengekstrakan dan pencirian pektin daripada buah naga (hylocereus polyrhizus)menggunakan pelbagai keadaan pengekstrakan)

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