Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes

This study was aimed to add value to the disposed dragon fruit peel from the juice industry. Pectin was extracted from the fruit peel and functional properties of pectin and its application in jam processing were investigated. Hunter ‘L*’, ‘a*’, and ‘b*’ values of the dragon fruit peel pectin were 3...

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Main Authors: Mohamad Zahari, Nur Izalin, Syed Muhammad, Sharifah Kharidah, Bakar, Jamilah, Mohd Adzahan, Noranizan
Format: Article
Language:English
Published: Malaysian Agricultural Research and Development Institute (MARDI) 2016
Online Access:http://psasir.upm.edu.my/id/eprint/48880/
http://psasir.upm.edu.my/id/eprint/48880/1/Functional%20properties%20of%20pectin%20from%20dragon%20fruit%20%28Hylocereus%20polyrhizus%29%20peel%20and%20its%20sensory%20attributes.pdf
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author Mohamad Zahari, Nur Izalin
Syed Muhammad, Sharifah Kharidah
Bakar, Jamilah
Mohd Adzahan, Noranizan
author_facet Mohamad Zahari, Nur Izalin
Syed Muhammad, Sharifah Kharidah
Bakar, Jamilah
Mohd Adzahan, Noranizan
author_sort Mohamad Zahari, Nur Izalin
building UPM Institutional Repository
collection Online Access
description This study was aimed to add value to the disposed dragon fruit peel from the juice industry. Pectin was extracted from the fruit peel and functional properties of pectin and its application in jam processing were investigated. Hunter ‘L*’, ‘a*’, and ‘b*’ values of the dragon fruit peel pectin were 39.95, 34.87 and 20.18 respectively, which showed light red in colour compared to the commercial apple and citrus pectin. In terms of textural properties, the dragon fruit peel pectin showed several characteristics which were similar to apple and citrus pectin. Water holding capacity of the pectin was similar to apple pectin which was 5.50 and 5.45 g/g respectively. Its oil holding capacity and swelling capacity also showed no significant difference (p >0.05) from that of citrus pectin. It was successfully applied in pineapple jam but at a high percentage of up to 2% to make it well set. For sensory attributes, no significant (p <0.05) differences were observed between the mean scores of the jam produced using dragon fruit peel pectin and apple pectin except for the colour attribute. It is therefore recommended to use this pectin as a thickener in food products such as low viscous food and beverages.
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spelling upm-488802016-12-29T09:34:50Z http://psasir.upm.edu.my/id/eprint/48880/ Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes Mohamad Zahari, Nur Izalin Syed Muhammad, Sharifah Kharidah Bakar, Jamilah Mohd Adzahan, Noranizan This study was aimed to add value to the disposed dragon fruit peel from the juice industry. Pectin was extracted from the fruit peel and functional properties of pectin and its application in jam processing were investigated. Hunter ‘L*’, ‘a*’, and ‘b*’ values of the dragon fruit peel pectin were 39.95, 34.87 and 20.18 respectively, which showed light red in colour compared to the commercial apple and citrus pectin. In terms of textural properties, the dragon fruit peel pectin showed several characteristics which were similar to apple and citrus pectin. Water holding capacity of the pectin was similar to apple pectin which was 5.50 and 5.45 g/g respectively. Its oil holding capacity and swelling capacity also showed no significant difference (p >0.05) from that of citrus pectin. It was successfully applied in pineapple jam but at a high percentage of up to 2% to make it well set. For sensory attributes, no significant (p <0.05) differences were observed between the mean scores of the jam produced using dragon fruit peel pectin and apple pectin except for the colour attribute. It is therefore recommended to use this pectin as a thickener in food products such as low viscous food and beverages. Malaysian Agricultural Research and Development Institute (MARDI) 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/48880/1/Functional%20properties%20of%20pectin%20from%20dragon%20fruit%20%28Hylocereus%20polyrhizus%29%20peel%20and%20its%20sensory%20attributes.pdf Mohamad Zahari, Nur Izalin and Syed Muhammad, Sharifah Kharidah and Bakar, Jamilah and Mohd Adzahan, Noranizan (2016) Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes. Journal of Tropical Agriculture and Food Science, 44 (1). pp. 95-101. ISSN 1394-9829; ESSN: 2289-9650 http://ejtafs.mardi.gov.my/index.php/publication/issues/current/190-jtafs-vol-44-no-1/volume-44-no-1/1350-440110
spellingShingle Mohamad Zahari, Nur Izalin
Syed Muhammad, Sharifah Kharidah
Bakar, Jamilah
Mohd Adzahan, Noranizan
Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes
title Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes
title_full Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes
title_fullStr Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes
title_full_unstemmed Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes
title_short Functional properties of pectin from dragon fruit (Hylocereus polyrhizus) peel and its sensory attributes
title_sort functional properties of pectin from dragon fruit (hylocereus polyrhizus) peel and its sensory attributes
url http://psasir.upm.edu.my/id/eprint/48880/
http://psasir.upm.edu.my/id/eprint/48880/
http://psasir.upm.edu.my/id/eprint/48880/1/Functional%20properties%20of%20pectin%20from%20dragon%20fruit%20%28Hylocereus%20polyrhizus%29%20peel%20and%20its%20sensory%20attributes.pdf