期刊
FOODS
卷 10, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/foods10081959
关键词
low-fat burger; chitosan; fat replacer; lipid oxidation; quality
Incorporating low molecular weight chitosan into low-fat beef burgers can improve their water-holding capacity and color, but also increase their hardness and springiness while decreasing cohesiveness. Additionally, it can slow down the increase of lipid oxidation indicators during refrigerated storage.
In the present work, incorporating low molecular weight chitosan (LMWCH) (0, 0.5, 1, and 2%) as a fat replacer into low-fat beef burgers and technological, textural, and oxidative stability were investigated. The weight loss and shrinkage of samples decreased with the increase of LMWCH concentration. In contrast, the water-holding capacity and color of burgers were enhanced by the addition of LMWCH. The instrumental TPA results indicated an increase in the LMWCH levels, significantly increasing the hardness, springiness, and gumminess but decreasing the cohesiveness of low-fat beef burgers. The TBARS and peroxide values and free fatty acid content in the burgers supplemented with LMWCH increase slower than the control sample during refrigerated storage.
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