AI Article Synopsis
- The study examined the interactions between lactoferrin (LF) and three polysaccharides: carrageenan (CG), xanthan gum (XG), and locust bean gum (LBG), to enhance LF stability in infant formulas per Chinese standards.
- It was found that LF maintained its structure when interacting with these polysaccharides under specific pH levels and mass ratios.
- The research highlighted that the type of interaction (electrostatic vs. hydrogen bonding) between LF and the polysaccharides significantly influenced their complex formation, offering insights for LF's use in infant nutrition.*
Article Abstract
In this study, carrageenan (CG), xanthan gum (XG) and locust bean gum (LBG), which can be used in infant formulas in China national standards, were selected to prepare LF-polysaccharide complexes to improve the stability of lactoferrin. The results showed that LF interacted more strongly with polysaccharides and did not affect the LF structure to a large extent when the pH and protein/polysaccharide mass ratio were 7 and 10:1 for LF-CG, 8 and 5:1 for LF-XG, 7 and 15:1 for LF-LBG. The zeta potential and fluorescence intensity of the LF-polysaccharide complexes displayed a decreasing trend with the increase in pH. When pH < 6, LF-CG and LF-XG exhibited precipitation and increased UV absorbance. Complexation between LF and CG/XG mainly attributed to electrostatic interactions, while LF and LBG form complexes based on hydrogen bonding or hydrophobic interactions. This study could provide a reference for the practical application of LF in infant formula.
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| http://dx.doi.org/10.1016/j.foodchem.2024.140056 | DOI Listing |
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