In vitro antioxidative and binding properties of phenolics in traditional, citrus and exotic fruits

0447323 - ÚEB 2016 RIV NL eng J - Journal Article
Park, Y.S. - Cvikrová, Milena - Martincová, Olga - Ham, K.S. - Kang, S.G. - Park, Y.K. - Namiesnik, J. - Rombola, A.D. - Jastrzebski, Z. - Gorinstein, S.
In vitro antioxidative and binding properties of phenolics in traditional, citrus and exotic fruits.
Food Research International. Roč. 74, AUG (2015), s. 37-47. ISSN 0963-9969. E-ISSN 1873-7145
Institutional support: RVO:61389030
Keywords : Fruits * Bioactivity * Fluorescence
Subject RIV: EF - Botanics
Impact factor: 3.182, year: 2015

Many polyphenols bind proteins, therefore our research was focused on the potential of protein binding to polyphenols of investigated fruits and their health-related effects. The contents of polyphenols and related antioxidant activities of traditional, citrus and exotic fruits were compared. The presence of polyphenols (flavonoids and phenolic acids) in the investigated samples and their interaction with human serum albumin (HSA) was studied by HPLC, Fourier Transform Infrared (FT-IR) and three-dimensional fluorescence spectroscopy (3D-FL). The highest levels of polyphenols, antioxidant and binding capacities were found in red and blond grapefruits (citrus group), followed by strawberries and apples (traditional group) and mangosteen and kiwi fruit (exotic fruit), which also contained the highest levels of protocatechuic, p-coumaric, ferulic adds and quercetin. In conclusion, for the first time, the interaction of the polyphenols with human serum albumin was evaluated by fluorometry/FTIR. The obtained binding profiles allowed the comparison of three different groups of fruits. A mixture of these fruits can be recommended for consumption.
Permanent Link: http://hdl.handle.net/11104/0249173