Preparation, Characterization, and Application of Sodium Alginate/ε-Polylysine Layer-by-Layer Self-Assembled Edible Film
Source abstract
Abstract
The edible film (LBL film) was prepared by layer-by-layer self-assembly technology using Sodium alginate (SA) and ε-polylysine (ε-PL) as polyanion and polycation, respectively. The self-assembly method was optimized, the mechanical and physical properties of the optimal LBL film were characterized, and its preservation effect on blueberry was explored. Results suggested that the transmittance of LBL2 film was above 85%, and the appearance was smooth and transparency consistent. We found that the structure was compact and uniform through scanning electron microscopy (SEM). Differential scanning calorimetry (DSC) showed that LBL2 film had excellent thermal stability. And had lower water solubility and inhibitory effect on Alternaria. LBL2 films were significantly effective at inhibiting the growth of mold and maintain the firmness of postharvest blueberries. Compared with the control group, LBL2 films could prolong the shelf life of a blueberry by 1~2 days at room temperature.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Nanocomposite Films for Food Packaging · Biopolymer Synthesis and Applications · Antimicrobial agents and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Taizhou Vocational College of Science & Technology, Taizhou 318020, China
School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
Funding
Key research and development program of Zhejiang Province · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province
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