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Abstract Title:

Dragon Fruits as a Reservoir of Natural Polyphenolics with Chemopreventive Properties.

Abstract Source:

Molecules. 2021 Apr 9 ;26(8). Epub 2021 Apr 9. PMID: 33918584

Abstract Author(s):

Paweł Paśko, Agnieszka Galanty, Paweł Zagrodzki, Patraporn Luksirikul, Dinorah Barasch, Alina Nemirovski, Shela Gorinstein

Article Affiliation:

Paweł Paśko

Abstract:

Dragon fruits are a valued source of bioactive compounds with high potential to become a functional food. The aim of the study was to evaluate and compare the chemopreventive potential and chemical composition of fruits harvested in Thailand and Israel. The amount of different compounds in water and methanol extracts and antioxidant activity was investigated. Moreover, cytotoxic activity against cancer and normal cells of skin, prostate, and gastrointestinal origin was performed, accompanied by anti-inflammatory assay based on NO production in RAW 264.7 macrophage model. Additionally, the quenching properties of polyphenols from fruits were determined by the interaction of the main drug carrier in blood human serum (HSA). The chemometric analysis was used to reveal the relationships between the determined parameters. Dragon fruits harvested in Israel revealed higher antioxidant properties and total content of polyphenols and betacyanins when compared to those from Thailand. The examined fruits of both origins showed significant cytotoxic activity toward colon and prostate cancer cells, with no toxic effect on normal cells, but also no anti-inflammatory effect. Moreover, a high binding ability to HSA was observed for water extracts of dragon fruits. All these predestine dragon fruits are the candidates for the attractive and chemopreventive elements of daily diet.

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