Dragon fruit peel pectin: Microwave-assisted extraction and fuzzy assessment

Authors

  • Nudthapong Tongkham Faculty of Applied Science and Engineering, Khon Kaen University, Nong Khai Campus, Nong Khai Province, 43000 Thailand
  • Boonyawee Juntasalay Faculty of Applied Science and Engineering, Khon Kaen University, Nong Khai Campus, Nong Khai Province, 43000 Thailand
  • Patareeya Lasunon Faculty of Applied Science and Engineering, Khon Kaen University, Nong Khai Campus, Nong Khai Province, 43000 Thailand
  • Nipaporn Sengkhamparn Faculty of Applied Science and Engineering, Khon Kaen University, Nong Khai Campus, Nong Khai Province, 43000 Thailand

Keywords:

Dragon fruit peel, Fuzzy assessment method, Microwave-assisted extraction, Pectin

Abstract

Dragon fruit peels were used as a material for pectin extraction. Microwave-assisted extraction (MAE) using powers of 300, 450 or 600 Wand heating times of 5 or 10 min were investigated. Compared to the conventional method, the MAE method produced a higher yield of pectin, with the highest pectin yield (23.11%) being obtained using a microwave power of 600 W and a heating time of 10 min. However, during the MAE extraction, the degradation of pectin may have occurred which resulted in a drop in viscosity. The fuzzy assessment method (FAM) was applied to determine suitable conditions for MAE. The highest overall performance index obtained from FAM indicated that a microwave power of 450 W and an extraction time of 5 min were suitable conditions to produce a high pectin quantity with less degradation. Moreover, the anhydrouronic acid content, degree of esterification and the Fouriertransform infrared spectrum of MAE pectin did not differ from the conventional pectin and therefore, the extract could be categorized as a high methoxyl pectin.

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Published

2017-08-31

How to Cite

Tongkham, Nudthapong, Boonyawee Juntasalay, Patareeya Lasunon, and Nipaporn Sengkhamparn. 2017. “Dragon Fruit Peel Pectin: Microwave-Assisted Extraction and Fuzzy Assessment”. Agriculture and Natural Resources 51 (4). Bangkok, Thailand:262-67. https://li01.tci-thaijo.org/index.php/anres/article/view/239984.

Issue

Vol. 51 No. 4 (2017): July-August

Section

Research Article

License

online 2452-316X print 2468-1458/Copyright © 2022. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/),
production and hosting by Kasetsart University of Research and Development Institute on behalf of Kasetsart University.