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Crosslinked protein-polysaccharide nanocomposite coating for pork preservation: Impact on physicochemical properties and microbial structure.
Food Chem
April 2025
School of Liquor and Food Engineering, Guizhou University, Guiyang, Guizhou 550025, PR China. Electronic address:
Edible films are significant in prolonging the shelf life of meat products. Herein, we prepared some edible coatings (EW/TNPCSs) based on egg white/chitosan/pectin as polymer matrix, containing tannic acid-nisin composite nano-crosslinker with antibacterial-antioxidant activities. The results of preservation indicated that the prepared EW/TNPCSs reduced the water loss of chilled pork and delayed the changes of taste, texture and surface color.
View Article and Find Full Text PDFAntibiotic susceptibility and molecular characterization based on whole-genome sequencing of Staphylococcus aureus causing invasive infection in children and women living in Southwest China during 2018-2023.
BMC Microbiol
January 2025
Department of Laboratory Medicine, West China Second University Hospital, Sichuan University, Chengdu, China.
Background: Staphylococcus aureus is one of the most common pathogens that colonizes human skin/mucous membranes, where it causes local infection that can progress to invasive infection, resulting in high morbidity and mortality worldwide. This study aimed to investigate the antibiotic susceptibility and molecular characteristics of invasive S. aureus in children and women in Southwest China from 2018 to 2023 to provide novel insights helpful in preventing and treating S.
View Article and Find Full Text PDFEffect of magnetization on antibacterial, lipid-lowering and antioxidant activities of isoquinoline alkaloids.
Sci Rep
January 2025
School of Chemical Engineering, Sichuan University, Chengdu, 610065, China.
The magnetization strategy of isoquinoline alkaloids has been successfully used in the extraction and isolation, but the effect of the magnetization on biological activities of those alkaloids still deserves further investigation. Therefore, the antibacterial, lipid-lowering and antioxidant activities of five isoquinoline alkaloids (berberine, tetrahydroberberine, palmatine, tetrahydropalmatine and tetrahydropapavine) before and after magnetization were compared in this study, and the results showed that the relevant activities were enhanced after magnetization. Additionally, among the five magnetic derivatives studied, berberine magnetic derivative ([Ber·H][FeCl]) had the best antibacterial effect on S.
View Article and Find Full Text PDFBoric acid-substituted phthalocyanine/ciprofloxacin co-assembled nanoparticles for constructing bacteria-responsive intelligent wound dressings with synergistic therapy and recognition of bacterial infections.
Int J Biol Macromol
January 2025
Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China; Department of Rehabilitation Medicine, Affiliated Qingdao Central Hospital of Qingdao University, Qingdao Cancer Hospital, Qingdao, Shandong 266000, China. Electronic address:
In contemporary times, the waning effectiveness of antibiotics against bacterial infections is progressively giving rise to significant concerns in public health. Although photodynamic technology possesses a potent ability to deactivate bacteria, its non-selective attack on normal cells poses potential side effects. Hence, in this study, a boric acid-substituted phthalocyanine photosensitizer (BAPc) was synthesized, exhibiting remarkable bacterial targeting capability.
View Article and Find Full Text PDFVersatile applications of cobalt and copper complexes of biopolymeric Schiff base ligands derived from chitosan.
Int J Biol Macromol
January 2025
Catalytic Applications Laboratory, Department of Chemistry, School of Basic Sciences, Faculty of Science, Manipal University Jaipur, Dehmi Kalan, Jaipur 303007, Rajasthan, India. Electronic address:
In the present study, biopolymeric Schiff base (SB) ligands were synthesized from chitosan and isatin. Consequently, their earth abundant transition metal complexes of cobalt and copper were synthesized. All compounds were extensively characterized using FTIR and UV spectroscopy, thermo-gravimetric (TG) analysis, X-ray powder diffraction (XRD) and FESEM (field emission scanning electron microscopy).
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