Phycocyanin (PC), a natural protein that is very interesting from the medical point of view due to its potent antioxidant and anti-inflammatory properties, is obtained from algae. This compound is gaining positions for applications in the food industry. The main objective of this work was to obtain nanoemulgels formulated with PC and k-carrageenan (a polymer that is obtained from algae as well). An optimization of the processing parameters (homogenization pressure and number of cycles) and the ratio of PC and a well-known synthetic surfactant (Tween 80) was developed using response surface methodology. The results of this optimization were 25,000 psi, seven cycles, and a 1:1 ratio of PC/Tween80. However, the necessity for the incorporation of a polymer that plays a thickener role was observed. Hence, k-carrageenan (k-C) was used to retard the creaming process that these nanoemulsions suffered. The incorporation of this biopolymer provoked the creation of a network that showed gel-type behavior and flow indexes very close to zero. Thanks to the combined use of these two sustainable and algae-obtained compounds, stable nanoemulgels were obtained. This work has proved that the combined use of PC and k-C has emerged as a sustainable alternative to stabilize dispersed systems for the food industry.
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http://dx.doi.org/10.3390/polym16020194 | DOI Listing |
Curr Microbiol
January 2025
Brewing Technology Industrial College, Hubei University of Arts and Sciences, Xiangyang, Hubei, China.
To investigate the bacterial community structure and physicochemical characteristics of different types of Daqu in the Binzhou region, this study employed traditional pure culture methods, high-throughput sequencing technology, and conventional physicochemical assays for analysis. The research results indicate that Enterococcus faecium and Bacillus licheniformis emerged as the main LAB and Bacillus species in Daqu from Binzhou region, respectively. In addition, high-throughput sequencing revealed significant differences in bacterial community structure between the two types of Daqu (P < 0.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Department of Food Science, Shenyang Medical college, Shenyang, Liao Ning 110034, PR China. Electronic address:
Sulfated polysaccharides refer to polysaccharides containing sulfate groups on sugar units. In nature, sulfated polysaccharides are widely distributed in marine organisms, and the variation in sulfation sites, monosaccharide composition, and branched chain distribution among different species results in differences in the physicochemical properties and biological activities. From the latest perspective, this review summarized the types, structural characteristics, and potential health benefits of sulfated polysaccharides in marine foods.
View Article and Find Full Text PDFMicrobiome
January 2025
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, 102206, China.
Background: Antimicrobial resistance poses a significant threat to global health, with its spread intricately linked across human, animal, and environmental sectors. Revealing the antimicrobial resistance gene (ARG) flow among the One Health sectors is essential for better control of antimicrobial resistance.
Results: In this study, we investigated regional ARG transmission among humans, food, and the environment in Dengfeng, Henan Province, China by combining large-scale metagenomic sequencing with culturing of resistant bacterial isolates in 592 samples.
J Texture Stud
February 2025
Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan.
The increasing demand for protein-rich, plant-based foods has driven the development of meat analogs that closely mimic the texture and mouthfeel of animal meat. While plant-based fibrils and electrospun silk fibroin fibers have been explored for texture enhancement and scaffolding in both meat analogs and cell-based meats, the use of wet-spun fibroin protein fibers as a food ingredient remains underexplored. This study investigates the potential of wet-spun recombinant fibroin fibers to enhance the textural properties of meat analogs.
View Article and Find Full Text PDFAnal Bioanal Chem
January 2025
Forensic Laboratory of Biologically Active Substances, Department of Chemistry of Natural Compounds, University of Chemistry and Technology, Technická 5, 166 28, Prague 6, Prague, Czech Republic.
The recent surge in popularity of cannabidiol-infused products extends beyond food and supplements to the cosmetic industry. Accurate labeling remains a significant concern, as many products fail to meet advertised cannabidiol content and/or contain psychoactive tetrahydrocannabinol above the permissible levels. In this work, we present the use of an HPLC-UV-MS/MS method for the quantification of five major cannabinoids (cannabidiol, cannabidiolic acid, tetrahydrocannabinol, tetrahydrocannabinolic acid, and cannabigerol) in oil-in-water cosmetic emulsions.
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