期刊
INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
卷 46, 期 10, 页码 2197-2203出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2621.2011.02737.x
关键词
Dextran; functional properties; Maillard reaction; wheat germ protein
资金
- National Key Technology Research and Development Program in the 11th Five year Plan of China [2010BAD01B07]
- High-Tech Research and Development Program of China [2010AA101503]
The Maillard reaction (MR) under wet reaction conditions with several common saccharides, such as xylose, glucose, lactose, dextran and maltodextrin, were applied to improve the functional properties of wheat germ protein (WGP). The MR products (MRPs) prepared with dextran at pH 11.0 heated at 90 degrees C in 2% aqueous dispersions heating for 20 min showed better solubility and emulsifying properties. The fluorescence intensity analysis proved the MR occurred, and thinner sheet MRPs were observed by scanning electron microscope (SEM). The relative contents of Cys, Lys and Arg were decreased, which could reduce the chance of protein aggregation through -S-S bonds. Circular dichroism (CD) spectrum expressed the difference in the secondary structures between WGP and MRPs, which may make MRPs show better functional properties than WGP. These results suggested that MR with dextran under wet reaction conditions can be a promising way to improve functional properties of WGP.
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