A Contribution to Improve Barrier Properties and Reduce Swelling Ratio of κ-Carrageenan Film from the Incorporation of Guar Gum or Locust Bean Gum

Abstract

In this study, galactomannan (GM), including guar gum (GG) or locust bean gum (LG), was incorporated into a κ-carrageenan film to improve barrier properties and reduce the swelling ratio (SR). The effects of that with different concentrations on optical, mechanical, barrier, swelling and thermal properties of the κ-carrageenan-based film were researched. SEM and rheological results showed that both κ-carrageenan/GG and κ-carrageenan/LG had good compatibility and stability. FTIR results showed that LG was easier to form hydrogen bonds with κ-carrageenan. The KC-L exhibited excellent mechanical properties, barrier properties, and SR than KC-G. The film with 15% GM had good light transmittance. Moreover, the thermal stability of the film could be improved by adding GMs. This study reports that the κ-carrageenan–GM film has potential in packaging applications.

Recent Progress of Carrageenan-Based Composite Films in Active and Intelligent Food Packaging Applications

“…Wang et al [56] incorporated locust bean gum and guar gum into carrageenan films to study the changes in the mechanical and barrier properties of the fabricated films. To prepare carrageenan films, locust bean and guar gum were mixed at different concentrations.…”

A photocrosslinked methacrylated carboxymethyl chitosan/oxidized locust bean gum double network hydrogel for cartilage repair

“…23,24 Simultaneously, the abundant surface functional groups of LBG make it possible to combine with other materials for synthesizing new materials with excellent performance. 25,26 Matar et al synthesized a LBG/PVA hydrogel using the gel casting method, which exhibited good pH and temperature-responsive behavior and could be used as a candidate biomaterial for drug delivery applications. 27 Kaity et al designed an acrylamide-grafted copolymer of LBG through microwave irradiation and were able to achieve controlled release of buflomedil hydrochloride.…”