NDLI: Antioxidant activity of maillard reaction products from lysine-glucose model system as related to optical property and copper (II) binding ability

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Antioxidant activity of maillard reaction products from lysine-glucose model system as related to optical property and copper (II) binding ability

Content Provider	Semantic Scholar
Author	Zhuang, Yongliang Sun, Liping
Copyright Year	2011
Abstract	Maillard reaction (MR) was carried out in L-lysine-D-glucose (Lys-Glu) model system heated at 120°C for 0 to 10 h without pH control. Optical property (UV-Vis absorbance and fluorescence) development of MR was monitored. Antioxidant activity of maillard reaction products (MRPs) was investigated by a series of in vitro tests. The UV-Vis absorbance zero and first-order derivative spectrophotometric was utilized to study the metal-binding property and chelating effect of different fractions of MRPs. MRPs had reducing power, strong free radical-scavenging activity and copper (II)-binding ability. The antioxidant activity of MRPs related well with the UV-Vis absorbance properties of maillard rection. Cu2+-binding to MRPs caused the electronic rearrangement in UV-Vis absorbance intermediates, but had no effect on the chromophore structure in brown polymers. The UV-Vis absorbance compounds were responsible to the reducing power and radical-scavenging activity. The fractions of low molecular weight MRPs showed effective metal-chelating ability. Key words: Maillard reaction products, antioxidant activity, metal-chelating effect, optical properties.
Starting Page	6784
Ending Page	6793
Page Count	10
File Format	PDF HTM / HTML
Volume Number	10
Alternate Webpage(s)	https://www.ajol.info/index.php/ajb/article/viewFile/94674/84045
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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