Back

Core-Shell Hydrogel System to Protect the Enzyme Activity of Phytase from Environmental Stress

Yang, E.; Khongkomolsakul, W.; Dadmohammadi, Y.; Abbaspourrad, A.

2025-03-11 biochemistry
10.1101/2025.03.07.642130 bioRxiv
Show abstract

Fortification of phytase from Aspergillus niger (phyA) in a vegetarian diet is a practical strategy to solve mineral deficiencies induced by the presence of phytate. To protect phyAs activity and retention from environmental stress such as heat and acidic conditions, we evaluated the use of a core-shell hydrogel bead, where the core is composed of a phyA-chitosan complex, and the shell is formed by cross-linking alginate with {kappa}-carrageenan. The phyA loading capacity is 52.2%, with high encapsulation efficiency (82.6%). When forming the hydrogel beads, a needle diameter of 0.5 mm can create a 2.5 mm bead. The beads were found to remain intact during dehydration under a vacuum at 30 . The formed hydrogel beads protected 79.7% of the phyA activity after heating at 100 {degrees}C for 12 min. The beads protected their cargo against salt, pH changes, and protease. These results suggest that core-shell beads are suitable for protecting enzyme activity against various processing stresses, which makes them useful as a delivery method for phytase in food applications.

Matching journals

The top 9 journals account for 50% of the predicted probability mass.

50% of probability mass above

"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.