Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 151, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2021.112239
Keywords
Polysaccharides; Starch retrogradation; Bread staling
Categories
Funding
- Scientific Research Project of the Education Department of Hubei Province [B2020065]
- Open Project Fund of the Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University) [2019GYBQGDKFB02]
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This research demonstrates that the addition of Laminaria japonica polysaccharides (LJP) can improve the properties of bread, slow down the staling process during storage, and enhance the fresh quality of bread.
Bread staling is a deterioration process that causes serious economic losses in the food industry. The objective of this research was to determine the impact of Laminaria japonica polysaccharides (LJP) on the anti-staling properties during storage. The baking, thermal, starch retrogradation, and microstructure properties of bread with LJP during room storage were investigated. The results showed that the addition of LJP improved specific volume and textural properties. The kinetic model showed that the addition of LJP decreased the rate constant. Meanwhile, LJP addition exhibited a significant decrease of enthalpy and crystallization in the frozen dough bread. Data also showed that LJP may form more hydrogen bonds and interfere the starch reassociation and retrogradation. This effect was also evident in the microstructure, showing that LJP could improve the fresh quality and delay the deterioration of the bread structure. Overall, LJP can potentially be used as an effective natural additive to increase the storage stability of baked food.
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