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| Content Provider | African Journals Online (AJOL) |
|---|---|
| Author | L Sun Y Zhuang |
| 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. |
| Ending Page | 6793 |
| Starting Page | 6784 |
| File Format | |
| e-ISSN | 16845315 |
| Journal | African Journal of Biotechnology |
| Issue Number | 35 |
| Volume Number | 10 |
| Language | English |
| Publisher Date | 2013-09-27 |
| Access Restriction | Open |
| Subject Keyword | Biology Life Sciences Maillard reaction products antioxidant activity metal-chelating effect optical properties. |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biotechnology Molecular Biology Agronomy and Crop Science Genetics Applied Microbiology and Biotechnology |
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