원문정보
초록
영어
Carrageenan-based functional films were prepared by adding two different types of sulfur nanoparticles (SNP) synthesized from sodium thiosulfate (SNPSTS) and elemental sulfur (SNPES). The films were characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction spectroscopy (XRD), and thermal gravimetric analysis (TGA). Also, film properties such as UV-visible light transmittance, water contact angle (WCA), water vapor permeability (WVP), mechanical properties, and antibacterial activity were evaluated. SNPs were uniformly dispersed in the carrageenan matrix to form flexible films. The addition of SNP significantly increased the film properties such as water vapor barrier and surface hydrophobicity but did not affect the mechanical properties. The carrageenan/SNP composite film showed some antibacterial activity against foodborne pathogenic bacteria, L. monocytogenes and E. coli.
목차
Introduction
Material and methods
1. Materials
2. Preparation of sulfur nanoparticles
3. Preparation of films
4. Characterization of nanoparticles and nano-compositefilms
5. Statistical analysis
Results and discussion
1. Appearance and surface morphology of the film
2. FTIR and XRD
3. Optical properties
4. Mechanical properties
5. Water contact angle (WCA) and water vapor permeability (WVP)
6. Thermal stability
7. Antibacterial activity
Conclusions
Acknowledgment
References