Films were prepared by casting 2% w/v apple pectin, 0.5% w/v low-acyl gellan and 2.2% w/v glycerol as plasticizer. Bioactive film (BF, films with 3912 International Units (IU) nisin/cm) and control films (CF, films without nisin) were elaborated. The objective was to analyze the release kinetics of nisin from films to a food model, to determine the period of film bioactivity and potential use as antimicrobial packaging. The release of nisin from BF to a food model was determined at 5 °C and 30 °C. The release kinetics of nisin was fitted to the analytical solution of the Fick's second law for an infinite plate. The diffusion coefficients of nisin (D) were 5.22 × 10 and 7.36 × 10 m/s for 5 °C and 30 °C, respectively. Besides, both films were characterized in their mechanical properties and gas permeabilities [oxygen (PO) and water vapour permeability (WVP)]. The mechanical properties were reduced by the nisin incorporation, whereas PO was increased, and no significant effect on WVP was observed.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8249541 | PMC |
| http://dx.doi.org/10.1007/s13197-020-04800-z | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Understanding the Mechanism of Electrochemical CO Capture by Supercapacitive Swing Adsorption.
ACS Nano
January 2025
Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
Carbon dioxide capture underpins an important range of technologies that can help to mitigate climate change. Improved carbon capture technologies that are driven by electrochemistry are under active development, and it was recently found that supercapacitor energy storage devices can reversibly capture and release carbon dioxide. So-called supercapacitive swing adsorption (SSA) has several advantages over traditional carbon dioxide capture technologies such as lower energy consumption and the use of nontoxic materials.
View Article and Find Full Text PDFRepresentative Training Data Sets Are Critical for Accurate Machine-Learning Classification of Microscopy Images of Particles Formed by Lipase-catalyzed Polysorbate Hydrolysis.
J Pharm Sci
January 2025
Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303. Electronic address:
Polysorbate 20 (PS20) is commonly used as an excipient in therapeutic protein formulations. However, over the course of a therapeutic protein product's shelf life, minute amounts of co-purified host-cell lipases may cause slow hydrolysis of PS20, releasing fatty acids (FAs). These FAs may precipitate to form subvisible particles that can be detected and imaged by various techniques, e.
View Article and Find Full Text PDFHydrolyzing collagen by extracellular protease Hap of Aeromonas salmonicida: Turning chicken by-products into bioactive resources.
Food Chem
January 2025
State Key Laboratory of Meat Quality Control and Cultured Meat Development, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China. Electronic address:
Collagen-rich meat processing by-products have potential utilization value. Extracellular protease Hap from meat-borne Aeromonas salmonicida has been identified as an ideal protease for hydrolyzing collagen. Here, to explore the possible application of Hap for giving chicken by-products a high added value, the hydrolysis ability and mechanism were investigated.
View Article and Find Full Text PDFOutcomes of Triceps Surae Lengthening Surgery in Children With Charcot-Marie-Tooth Disease: A Multisite Investigation.
J Pediatr Orthop
January 2025
Jackie and Gene Autry Orthopedic Center, Children's Hospital Los Angeles, Los Angeles, CA.
Background: Orthopaedic surgical intervention in children with Charcot-Marie-Tooth (CMT) often includes triceps surae lengthening (TSL) and foot procedures to address instability and pain due to equinus and cavovarus deformities. These surgeries may unmask underlying weakness in this progressive disease causing increased calcaneal pitch and excessive dorsiflexion in terminal stance leading to crouch. The purpose of this study was to evaluate changes in ankle function during gait following TSL surgery in children with CMT.
View Article and Find Full Text PDFEnhancement of Transdermal Drug Delivery: Integrating Microneedles with Biodegradable Microparticles.
Mol Pharm
January 2025
Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, Georgia 30341, United States.
This investigation aimed to enhance transdermal methotrexate delivery through human skin by employing Dr. Pen microneedles and poly(d,l-lactide--glycolide) acid microparticles formulated from eight polymer grades (Expansorb DLG 95-4A, DLG 75-5A, DLG 50-2A, DLG 50-5A, DLG 50-8A, DLG 50-6P, DLG 50-7P, and DLL 10-15A). A comprehensive characterization of the microparticles was performed, encompassing various parameters such as size, charge, morphology, microencapsulation efficiency, yield, release kinetics, and chemical composition.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!