The aim of this study is to produce a biodegradable food packaging material that reduces environmental pollution and protects food safety. The effects of total solids content, substrate ratio, polyphenol content, and magnetic stirring time on bovine bone gelatin/sodium carboxymethylcellulose nanoemulsion (BBG/SCMC-NE) were investigated using particle size, PDI, turbidity, rheological properties, and zeta potential as evaluation indexes. The micro, structural, antioxidant, encapsulation, and release properties were characterized after deriving its optimal preparation process. The results showed that the nanoemulsion was optimally prepared with a total solids content of 2%, a substrate ratio of 9:1, a polyphenol content of 0.2%, and a magnetic stirring time of 60 min. SEM showed that the nanoemulsion showed a dense and uniform reticulated structure. FTIR and XRD results showed that covalent cross-linking of proteins and polysaccharides altered the structure of gelatin molecular chains to a more compact form but did not change its semi-crystalline structure. DSC showed that the 9:1 BBG/SCMC-NE had a higher thermal denaturation temperature and greater thermal stability, and its DPPH scavenging rate could reach 79.25% and encapsulation rate up to 90.88%, with excellent slow-release performance. The results of the study provide basic guidance for the preparation of stable active food packaging with excellent properties.
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http://dx.doi.org/10.3390/foods13101506 | DOI Listing |
Sheng Li Xue Bao
December 2024
College of Life Sciences, Fujian Normal University; Fujian Key Laboratory of Developmental and Neuro Biology, Fuzhou 350117, China.
Cancer pain is one of the most common symptoms in patients with advanced cancer. In this study, we aimed to investigate the effects of the -related gene C (MrgC) receptors on bone cancer pain. Mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) were measured after the inoculation of Walker 256 mammary gland carcinoma cells into the tibia of adult Sprague-Dawley rats.
View Article and Find Full Text PDFIUBMB Life
January 2025
Department of Nutrition, Takasaki University of Health and Welfare, Takasaki, Gunma, Japan.
The role of RGPR-p117, a transcription factor, which binds to the TTGGC motif in the promoter region of the regucalcin gene, in cell regulation remains to be investigated. This study elucidated whether RGPR-p117 regulates the activity of triple-negative human breast cancer MDA-MB-231 cells in vitro. The wild-type and RGPR-p117-overexpressing cancer cells were cultured in DMEM supplemented with fetal bovine serum.
View Article and Find Full Text PDFJ Mater Sci Mater Med
January 2025
Department of Anatomy, Histology, Embriology, Pathology Anatomy and Pathology Histology, Faculty of Dental Medicine and Health Osijek, J.J. Strossmayer University of Osijek, Osijek, Croatia.
Tooth extraction is physiologically followed by resorption of alveolar bone. Surgical method which aims to minimise this reduction in alveolar bone with a goal to provide enough bone volume for dental implant insertion is called socket preservation. The purpose of this article was to asses clinical, histomorphometric and histological results of socket preservation conducted with natural bovine bone substitute with hyaluronate.
View Article and Find Full Text PDFMicroorganisms
December 2024
Laboratory of Emerging Infectious Diseases, School of Medicine, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, PR, Brazil.
Silver nanoparticles have garnered significant attention for their antimicrobial applications. The aim of this study was to develop and characterize a silver nanoparticle-enhanced bone graft and assess its antimicrobial and antibiofilm activities. Bone granules from bovine cancellous femur were impregnated with silver nanoparticles (50 nm).
View Article and Find Full Text PDFMolecules
December 2024
Department of Human Nutrition, Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, 45f Sloneczna, 10-718 Olsztyn, Poland.
Bovine milk is widely recognized as one of the most valuable sources of nutrients such as proteins, fats, vitamins, and minerals that support the development and health of the body. In recent years, there has been increasing scientific interest in exosomes, the small membrane-bound vesicles found in milk. Through their content (e.
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