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Characterization and quantification of dragon fruit (Hylocereus polyrhizus) Betacyanin pigments extracted by two procedures


Citation

Naderi, Nassim and Mohd Ghazali, Hasanah and Meor Hussin, Anis Shobirin and Amid, Mehrnoush and Abd. Manap, Mohd. Yazid (2012) Characterization and quantification of dragon fruit (Hylocereus polyrhizus) Betacyanin pigments extracted by two procedures. Pertanika Journal of Tropical Agricultural Science, 35 (1). pp. 33-40. ISSN 1511-3701

Abstract

A method for the extraction of betacyanins pigments of dragon fruit (Hylocereus polyrhizus) grown in Malaysia was studied. A processing scheme consisting of solvent system selection (ethanolic and aqueous ethanolic) was proposed to study the effect of water in enhancing betacyanin recovery from the pulp of H. polyrhizus fruit. Betacyanins, in concentrated extracts from the dragon fruit (H. polyrhizus), were identified as betanin, phyllocactin, hylocerenin and their respective C-15 isoforms using High-performance liquid chromatographic (HPLC) analysis. Structural alteration was monitored by using selected solvent systems. As for the relative peak area ratios, some betacyanins showed a higher stability than others. Betanin, one of the main betacyanin in selected Malaysian H. polyrhizus cultivars, displayed the most stable structure. Comparing the peak area ratios of individual betacyanins, it was noticed that ethanolic assay might induce co-occuring of the C-15 isoforms.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Food Science and Technology
Publisher: Universiti Putra Malaysia Press
Keywords: Dragon fruit; Hylocereus polyrhizus; Betacyanins; Betanin; Phyllocactin; Hylocerenin
Depositing User: Nur Farahin Ramli
Date Deposited: 08 Oct 2013 13:37
Last Modified: 10 Dec 2015 01:54
URI: http://psasir.upm.edu.my/id/eprint/24204
Statistic Details: View Download Statistic

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