Natural Antimicrobial Agents from Algae: Current Advances and Future Directions.

Infectious diseases have significantly shaped human history, leading to significant advancements in medical science. The discovery and development of antibiotics represented a critical breakthrough, but the rise of antibiotic-resistant pathogens now presents a serious global health threat. Due to the limitations of current synthetic antimicrobials, such as toxicity and environmental concerns, it is essential to explore alternative solutions.

Antibacterial and Photocatalytic Applications of Silver Nanoparticles Synthesized from .

The biosynthesis of silver nanoparticles (AgNPs) presents an innovative and sustainable approach in nanotechnology with promising applications in fields such as medicine, food safety, and pharmacology. In this study, AgNPs were successfully synthesized using the probiotic strain (BCRC16000), addressing challenges related to stability, biocompatibility, and scalability that are common in conventional nanoparticle production methods. The formation of AgNPs was indicated by a color change from yellow to brown, and UV-visible spectrophotometry confirmed their presence with a characteristic absorption peak at 443 nm.

Influence of Critical Parameters on the Extraction of Concentrated C-PE from Thermotolerant Cyanobacteria.

This work aimed to identify the influence of pH, molarity, / fraction, extraction time, agitation, and either a sodium (NaHPO·7HO-NaHPO·HO) or potassium buffer (KHPO-KHPO) used in the extraction of C-phycoerythrin (C-PE) from a thermotolerant strain of sp. An experimental design (Minimum Run Resolution V Factorial Design) and a Central Composite Design (CCD) were used. According to the statistical results of the first design, the K-PO buffer, pH, molarity, and / fraction are vital factors that enhance the extractability of C-PE.

Impact of Biomass Drying Process on the Extraction Efficiency of C-Phycoerythrin.

Drying the biomass produced is one of the critical steps to avoid cell degradation; however, its high energy cost is a significant technological barrier to improving this type of bioprocess's technical and economic feasibility. This work explores the impact of the biomass drying method of a strain of sp. on the extraction efficiency of a phycoerythrin-rich protein extract.

Bicarbonate-Hydrogen Peroxide System for Treating Dyeing Wastewater: Degradation of Organic Pollutants and Color Removal.

The textile industry is a global economic driving force; however, it is also one of the most polluting industries, with highly toxic effluents which are complex to treat due to the recalcitrant nature of some compounds present in these effluents. This research focuses on the removal of Chemical Oxygen Demand (COD), color, Total Organic Carbon (TOC), and Ammoniacal Nitrogen (N-NH) on tannery wastewater treatment through an advanced oxidation process (AOPs) using sodium bicarbonate (NaHCO), hydrogen peroxide (HO) and temperature using a central composite non-factorial design with a surface response using Statistica 7.0 software.

Advanced Oxidation Processes and Biotechnological Alternatives for the Treatment of Tannery Wastewater.

The tannery industry is one of the economic sectors that contributes to the development of different countries. Globally, Europe and Asia are the main producers of this industry, although Latin America and Africa have been growing considerably in recent years. With this growth, the negative environmental impacts towards different ecosystem resources as a result of the discharges of recalcitrated pollutants, have led to different investigations to generate alternative solutions.

Enhancement of Phycobiliprotein Accumulation in Thermotolerant sp. through Media Optimization.

Phycobiliproteins (PBPs) are a group of brilliant pigment proteins found in cyanobacteria and red algae; their synthesis and accumulation depend on several factors such as the type of strain employed, nutrient concentration, light intensity, light regimes, and others. This study evaluates the effect of macronutrients (citrate buffer, NaNO, KHPO, MgSO, CaCl, NaCO, and EDTA) and the concentration of trace metals in BG-11 media on the accumulation of PBPs in a thermotolerant strain of sp. The strain was grown in BG-11 media at 28 °C with a light:dark cycle of 12:12 h at 100 μmol m s for 15 days, and the effect of nutrients was evaluated using a Plackett-Burman Design followed by optimization using a response surface methodology.