The characteristics of polysaccharide from Gracilaria chouae and its application in food packaging with carboxymethyl cellulose and lysozyme

The effects of alginate lyase treatment on structural characteristics and anti‐photoaging activity of alginate from Sargassum fusiforme

“…As presented in Figure 2, all samples showed a similar FT‐IR spectrum, indicating that alginate lyase treatment did not change functional groups and glycosidic bond conformation of P1. All polysaccharides showed a broad stretching intense characteristic peak at around 3439 cm −1 for ‐OH and a low response peak at around 2979 cm −1 for C‐H bond (Chang et al., 2023). The peaks at around 1604 and 1428 cm −1 contributed to the bending vibration of C=O coupled C‐H stretching vibrations, respectively (Yang et al., 2021).…”

Influence of Molecular Weight of Polysaccharides from Laminaria japonica to LJP-Based Hydrogels: Anti-Inflammatory Activity in the Wound Healing Process

“…The materials commonly used to prepare hydrogel are mainly divided into natural polymers and synthetic polymers. Natural polymers, including proteins, peptides, and polysaccharides, have strong hydrophilicity, good biocompatibility, and other advantages [ 35 ]. Algae polysaccharides are anionic polysaccharides, which can form ionic cross-linking with chitosan and make the structure more stable.…”

Recent Advances in Sustainable Antimicrobial Food Packaging: Insights into Release Mechanisms, Design Strategies, and Applications in the Food Industry

“…The interaction between LZ and polysaccharides leads to the formation of intermolecular hydrogen bonds, while also improving the UVlight blocking capacity, elastic modulus, and tensile strength of the corresponding composite film. 185 Storage of sea bass packaged with composite films at 4 °C for 6 days led to reductions in the total bacterial count and the total volatile basic nitrogen compared to the control group. The sensory quality was maintained, and the shelf life was extended (at least 3 days when GCP was added at 3%).…”

“…For instance, the two-component polysaccharide substrate composed of CMC and Gracilaria chouae polysaccharide (GCP) enhanced the long-term stability and antibacterial activity of loaded lysozyme. The interaction between LZ and polysaccharides leads to the formation of intermolecular hydrogen bonds, while also improving the UV-light blocking capacity, elastic modulus, and tensile strength of the corresponding composite film . Storage of sea bass packaged with composite films at 4 °C for 6 days led to reductions in the total bacterial count and the total volatile basic nitrogen compared to the control group.…”

“…Natural lysozyme (LZ), an alkaline enzyme capable of hydrolyzing mucopolysaccharides in bacteria, is abundant in egg white, mammalian tears, saliva, plasma, milk, and even certain microorganisms. , LZ exhibits effective inhibition against both Gram-positive bacteria and Gram-negative bacteria, although the latter are somewhat more resistant to LZ due to a protective lipopolysaccharide layer on their cell walls. , To ensure the long-term stability and bioactivity of LZ, it is usually immobilized on cellulose, ,− starch, chitin, chitosan, ,,, rectorite, , other proteins, ,, and biodegradable PLA or micronized into LZ nanofibers , and then processed into sustainable antimicrobial packaging. Immobilization systems have been shown to promote the activity of LZ.…”