4.7 Article

Optimized preparation and antioxidant activity of glucose-lysine Maillard reaction products

期刊

LWT-FOOD SCIENCE AND TECHNOLOGY
卷 161, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.lwt.2022.113343

关键词

Maillard reaction; Antioxidant activity; Response surface methodology

资金

  1. Scientific Study Project of the Liaoning Province Education Department [LSNJC202011]

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The study found that sucrose ester and sodium bromate can inhibit the damage to non-wilted cells and promote plant adaptation to cold stress. Additionally, sugars and osmotic substances have a protective effect on non-wilted cells, potentially related to the occurrence of intercellular fluid loss and apoptosis.
Reductive substances in Maillard reaction products (MRPs) improve the oxidative stability of food. This study explored the antioxidant activity of the main components of MRPs in glucose-lysine (GL) models. The optimal conditions for preparing the Maillard reaction (MR) were studied by a response surface methodology using FRAP as an evaluation index. The antioxidant activities, including ABTS, DPPH, and FRAP assays were determined. The MRPs obtained from gel chromatography purification were subjected to UV absorbance and fluorescence intensity determined, and MRPs with antioxidant activity were detected by HPLC-MS. The results showed that optimal conditions were at a reaction temperature of 110 degrees C, a reaction time of 120 min, an initial of pH 10, and n (Glc: Lys) = 1:1. MR intermediates, browning pigments, and fluorescent compounds were related to antioxidant activity. Pearson correlation analysis further confirmed that the content of the main components (m/z 309) was significantly positively correlated with the antioxidant activity of MRPs.

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