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

Vergel Suarez, Ariadna Hazel; García-Martinez, Janet; López Barrera, German Luciano; Barajas Solano, andres F; ZUORRO, Antonio (BioTech, 2023-04-23)

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

Vergel-Suarez, Ariadna H.; García-Martinez, Janet; López Barrera, German Luciano; Urbina-Suarez, Nestor Andres; Barajas Solano, andres F (BioTechSuiza, 2024-06-24)

This work aimed to identify the influence of pH, molarity, w/v fraction, extraction time, agitation, and either a sodium (Na2HPO4 ·7H2O-NaH2PO4 ·H2O) or potassium buffer (K2HPO4 -KH2PO4 ) used in the extraction of ...
Natural Antimicrobial Agents from Algae: Current Advances and Future Directions

ZUORRO, Antonio; LAVECCHIA, Roberto; Contreras Ropero, Jefferson Eduardo; García-Martinez, Janet; Barajas Ferreira, Crisóstomo; Barajas Solano, andres F (International journal of molecular sciencesSuiza, 2024-11-04)

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 ...
A Phytochemical Approach to the Removal of Contaminants from Industrial Dyeing Wastewater

Urbina-Suarez, Nestor Andres; Salcedo Pabón, Cristian Jesús; Contreras Ropero, Jefferson Eduardo; López Barrera, German Luciano; García-Martinez, Janet; Barajas Solano, andres F; Machuca-Martínez, Fiderman (ChemEngineering, 2023-09-28)

This study investigates the influence of photoperiod and wastewater concentration on the growth of microalgae and cyanobacteria for the removal of environmentally significant parameters (COD, BOD, Cr, Fe, color, chlorides, ...

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Impact of Biomass Drying Process on the Extraction Efficiency of C-Phycoerythrin
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Vergel Suarez, Ariadna Hazel | 2023-04-23

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 Potamosiphon sp. on the extraction efficiency of a phycoerythrin-rich protein extract. To achieve the above, the effect of time (12–24 h), temperature (40–70 ◦C), and drying method (convection oven and dehydrator) were determined using an I-best design with a response surface. According to the statistical results, the factors that most influence the extraction and purity of phycoerythrin are temperature and moisture removal by dehydration. The latter demonstrates that gentle drying of the biomass allows removing the most significant amount of moisture from the biomass without affecting the concentration or quality of temperature-sensitive proteins.

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Influence of Critical Parameters on the Extraction of Concentrated C-PE from Thermotolerant Cyanobacteria
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Vergel-Suarez, Ariadna H. | 2024-06-24

This work aimed to identify the influence of pH, molarity, w/v fraction, extraction time, agitation, and either a sodium (Na2HPO4 ·7H2O-NaH2PO4 ·H2O) or potassium buffer (K2HPO4 -KH2PO4 ) used in the extraction of C-phycoerythrin (C-PE) from a thermotolerant strain of Potamosiphon 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-PO4 buffer, pH, molarity, and w/v fraction are vital factors that enhance the extractability of C-PE. The construction of a CCD design of the experiments suggests that the potassium phosphate buffer at pH 5.8, longer extraction times (50 min), and minimal extraction speed (1000 rpm) are ideal for maximizing C-PE concentration, while purity is unaffected by the design conditions. This optimization improves extraction yields and maintains the desired bright purple color of the phycobiliprotein

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Natural Antimicrobial Agents from Algae: Current Advances and Future Directions
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ZUORRO, Antonio | 2024-11-04

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. Algae, particularly microalgae and cyanobacteria, have emerged as promising sources of bioactive antimicrobial compounds. This review provides a comprehensive analysis of the antimicrobial properties of algal-derived compounds, including polysaccharides, fatty acids, and phenols, which have shown effectiveness against multi-drug-resistant bacteria. A co-occurrence bibliometric analysis using VOSviewer highlighted five key research clusters: antibiotic resistance, algal extracts, biosynthesis, water treatment, and novel pharmacological compounds. Furthermore, the primary mechanisms of action of these bioactive compounds, such as the inhibition of protein synthesis and cell membrane disruption, were identified, demonstrating their potential against both common and multi-resistant pathogens. Future research should prioritize optimizing algal biomass production, utilizing genetic and metabolic engineering, and creating innovative delivery systems to enhance the efficient production of bioactive compounds.

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A Phytochemical Approach to the Removal of Contaminants from Industrial Dyeing Wastewater
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Urbina-Suarez, Nestor Andres | 2023-09-28

This study investigates the influence of photoperiod and wastewater concentration on the growth of microalgae and cyanobacteria for the removal of environmentally significant parameters (COD, BOD, Cr, Fe, color, chlorides, nitrogen compounds, and phosphates) from dyeing wastewater. A two-factor central composite design with surface response was employed, involving two algae species (Chlorella and Scenedesmus sp.) and two cyanobacteria species (Hapalosiphon and Oscillatoriasp.). The findings indicated that extended photoperiods (>13 h) and higher wastewater concentrations (70–80% v/v) enhanced biomass production across all strains. However, Hapalosiphon and Chlorellasp. (1.6 and 0.45 g/L) exhibited better tolerance to the wastewater’s high toxicity, resulting in higher biomass concentrations and improved COD and BOD removal by Hapalosiphon sp. (75% and 80%,respectively). Further analysis of the obtained biomass revealed their potential applications. Among the cyanobacteria, Hapalosiphon sp. synthesized the highest concentrations of total proteins and lipids (38% and 28% w/w, respectively), while Oscillatoria sp. displayed a high protein content (42% w/w). In contrast, the algae demonstrated a strong propensity for storing substantial quantities of total carbohydrates (65% and 57% w/w for Scenedesmus and Chlorella sp., respectively). These results signify the feasibility of cultivating photosynthetic microorganisms in industrial dyeing wastewateras a sustainable source of nutrients for targeted metabolite production.

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Browsing by Subject "cyanobacteria"

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

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

Natural Antimicrobial Agents from Algae: Current Advances and Future Directions

A Phytochemical Approach to the Removal of Contaminants from Industrial Dyeing Wastewater

Envíos recientes

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

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

Natural Antimicrobial Agents from Algae: Current Advances and Future Directions

A Phytochemical Approach to the Removal of Contaminants from Industrial Dyeing Wastewater

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Browsing by Subject "cyanobacteria"

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

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

Natural Antimicrobial Agents from Algae: Current Advances and Future Directions ﻿

A Phytochemical Approach to the Removal of Contaminants from Industrial Dyeing Wastewater ﻿

Envíos recientes

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

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

Natural Antimicrobial Agents from Algae: Current Advances and Future Directions

A Phytochemical Approach to the Removal of Contaminants from Industrial Dyeing Wastewater

Portales Institucionales

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

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

Natural Antimicrobial Agents from Algae: Current Advances and Future Directions

A Phytochemical Approach to the Removal of Contaminants from Industrial Dyeing Wastewater