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Characterisation of the physicochemical properties of two species of dragon fruit seed oil (Hylocereus undatus and Hylocereus polyrhizus)

Wijitra Liaotrakoon UGent, Nathalie De Clercq, Vera Van Hoed UGent and Koen Dewettinck UGent (2010) 16th PhD symposium on applied biological sciences, Abstracts.
abstract
Oil was extracted from the seed of white-flesh (Hylocereus undatus; WFSO) and red-flesh (Hylocereus polyrhizus; RFSO) dragon fruits using a cold extraction process with petroleum ether. The delta-, gamma-, and alpha-tocopherol content, fatty acid and triacylglycerols composition, thermal and rheological properties of the extracted dragon fruit seed oils were analysed. The results showed that the dragon fruit seeds contained a high amount of oil up to 34.13%. The principal tocopherol in WFSO and RFSO was alpha-tocopherol. The total tocopherols content of RFSO was 1.6 times higher than that of WFSO. The three main fatty acids in these oils were palmitic acid (C16:0), oleic acid (C18:1) and linoleic acid (C18:2). The seed oil is interesting from a nutritional point of view: the essential fatty acid content of WFSO and RFSO counts up to 55.64% and 45.37% respectively. The thermal curves for WFSO and RFSO consisted of five endothermic peaks and two crystallisation curves with a broader temperature range. The apparent viscosity of WFSO and RFSO was similar (14.24-14.32 mPa.s). Thus the dragon fruit seed oils can be considered as a new source of tocopherols and essential fatty acids.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Seed oil, Dragon fruit, Essential fatty acid, Tocopherol
in
16th PhD symposium on applied biological sciences, Abstracts
conference name
16th PhD symposium on Applied Biological Sciences
conference location
Ghent, Belgium
conference start
2010-12-20
conference end
2010-12-20
language
English
UGent publication?
yes
classification
C3
id
1235287
handle
http://hdl.handle.net/1854/LU-1235287
date created
2011-05-24 23:16:19
date last changed
2016-12-19 15:36:26
@inproceedings{1235287,
  abstract     = {Oil was extracted from the seed of white-flesh (Hylocereus undatus; WFSO) and red-flesh (Hylocereus polyrhizus; RFSO) dragon fruits using a cold extraction process with petroleum ether. The delta-, gamma-, and alpha-tocopherol content, fatty acid and triacylglycerols composition, thermal and rheological properties of the extracted dragon fruit seed oils were analysed. The results showed that the dragon fruit seeds contained a high amount of oil up to 34.13\%. The principal tocopherol in WFSO and RFSO was alpha-tocopherol. The total tocopherols content of RFSO was 1.6 times higher than that of WFSO. The three main fatty acids in these oils were palmitic acid (C16:0), oleic acid (C18:1) and linoleic acid (C18:2). The seed oil is interesting from a nutritional point of view: the essential fatty acid content of WFSO and RFSO counts up to 55.64\% and 45.37\% respectively. The thermal curves for WFSO and RFSO consisted of five endothermic peaks and two crystallisation curves with a broader temperature range. The apparent viscosity of WFSO and RFSO was similar (14.24-14.32 mPa.s). Thus the dragon fruit seed oils can be considered as a new source of tocopherols and essential fatty acids.},
  author       = {Liaotrakoon, Wijitra and De Clercq, Nathalie and Van Hoed, Vera and Dewettinck, Koen},
  booktitle    = {16th PhD symposium on applied biological sciences, Abstracts},
  keyword      = {Seed oil,Dragon fruit,Essential fatty acid,Tocopherol},
  language     = {eng},
  location     = {Ghent, Belgium},
  title        = {Characterisation of the physicochemical properties of two species of dragon fruit seed oil (Hylocereus undatus and Hylocereus polyrhizus)},
  year         = {2010},
}

Chicago
Liaotrakoon, Wijitra, Nathalie De Clercq, Vera Van Hoed, and Koen Dewettinck. 2010. “Characterisation of the Physicochemical Properties of Two Species of Dragon Fruit Seed Oil (Hylocereus Undatus and Hylocereus Polyrhizus).” In 16th PhD Symposium on Applied Biological Sciences, Abstracts.
APA
Liaotrakoon, W., De Clercq, N., Van Hoed, V., & Dewettinck, K. (2010). Characterisation of the physicochemical properties of two species of dragon fruit seed oil (Hylocereus undatus and Hylocereus polyrhizus). 16th PhD symposium on applied biological sciences, Abstracts. Presented at the 16th PhD symposium on Applied Biological Sciences.
Vancouver
1.
Liaotrakoon W, De Clercq N, Van Hoed V, Dewettinck K. Characterisation of the physicochemical properties of two species of dragon fruit seed oil (Hylocereus undatus and Hylocereus polyrhizus). 16th PhD symposium on applied biological sciences, Abstracts. 2010.
MLA
Liaotrakoon, Wijitra, Nathalie De Clercq, Vera Van Hoed, et al. “Characterisation of the Physicochemical Properties of Two Species of Dragon Fruit Seed Oil (Hylocereus Undatus and Hylocereus Polyrhizus).” 16th PhD Symposium on Applied Biological Sciences, Abstracts. 2010. Print.