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Metabolomic and antioxidant properties of different varieties and origins of Dragon fruit

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Dragon fruit has appealed much concern from consumers as a novelty fruit with potent nutritional and medicinal benefits. Dragon fruit quality warrants comprehensive evaluation, based on the contents of pigments and health- promoting natural compounds in different varieties. This study was aimed to evaluate the differences among dragon fruit varieties extracted with methanol–water (CD3OD-D2O) and methanol (CD3OD) by proton nuclear magnetic resonance ( 1 H NMR)-based metabolomics approach. The variation features of the metabolite profiles were studied between varieties and origins of dragon fruit, considering the differences in principal component analysis (PCA). The hierarchical clustering analysis (HCA) based on score values of PCA model was also per- formed to analyze the distance between samples based on metabolites contents. The results of 1 H NMR spectra showed that the CD3OD-D2O extracts quantitatively differ from CD3OD ones. In dragon fruit extracts, 36 me- tabolites were identified. The results demonstrated that the methanol and methanol/water extracted similar compounds with higher intensity in methanol. The metabolic differences among varieties were also shown for CD3OD extracts by comparing both Pareto and UV scaling methods. The big size red fleshed dragon fruit (samples 2 and 3), growing in Israel were clustered similar to that growing in Thailand with the abundance of phenolic compounds. Glucose and fructose were more prominent in the yellow and white fleshed fruit (samples 4 and 5) growing in Israel. To support the obtained results two dimensional 1 H–1 H J-resolved and UHPLC-MS measure- ments were carried out. This research gain novel insights into the field as the first NMR metabolites finger- printing of the major dragon fruit varieties. The correlations between DPPH, CUPRAC, antioxidant and metabolomic properties were also evaluated. The chemical markers associated with varieties of dragon fruit quality and their appearances were identified and can be utilized for the basis of authentication purpose of this fruit.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuły w czasopismach
Opublikowano w:
MICROCHEMICAL JOURNAL nr 160,
ISSN: 0026-265X
Język:
angielski
Rok wydania:
2021
Opis bibliograficzny:
Al-Mekhlafi N., Mediani A., Ismail N., Abas F., Dymerski T., Lubinska-Szczygeł M., Vearasilp S., Gorinstein S.: Metabolomic and antioxidant properties of different varieties and origins of Dragon fruit// MICROCHEMICAL JOURNAL -Vol. 160,iss. part B (2021), s.105687-
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.microc.2020.105687
Weryfikacja:
Politechnika Gdańska

wyświetlono 46 razy

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