A5054078992- Algal biology and biofuel production
- Photosynthetic Processes and Mechanisms
- Aquatic Ecosystems and Phytoplankton Dynamics
- Biocrusts and Microbial Ecology
- Marine and coastal ecosystems
- Biodiesel Production and Applications
- Light effects on plants
- Microbial Fuel Cells and Bioremediation
- Enzyme Catalysis and Immobilization
- Solar-Powered Water Purification Methods
- Metalloenzymes and iron-sulfur proteins
- Biofuel production and bioconversion
- Water Quality Monitoring and Analysis
- Electrohydrodynamics and Fluid Dynamics
- Advanced Thermodynamics and Statistical Mechanics
- Photoreceptor and optogenetics research
- Microbial Community Ecology and Physiology
- Polar Research and Ecology
- Food composition and properties
- Plant Water Relations and Carbon Dynamics
- Spectroscopy and Quantum Chemical Studies
- Wastewater Treatment and Nitrogen Removal
- Antioxidant Activity and Oxidative Stress
- Microbial Metabolic Engineering and Bioproduction
- Diatoms and Algae Research
Universidad de Costa Rica
2020-2025
Universidad de Málaga
2024
Czech Academy of Sciences, Institute of Microbiology
2024
Institute of Bioorganic Chemistry
2024
Istituto di Biometeorologia
2023
National Research Council
2009-2022
Instituto di Biofisica
2021-2022
Trees and Timber Institute
2019
Institute of Ecosystem Study
2009-2018
Institute of Sciences of Food Production
2017
Culturing cyanobacteria in a highly alkaline environment is possible strategy for controlling contamination by other organisms. Synechocystis PCC 6803 cells were grown continuous cultures to assess their growth performance at different pH values. Light conversion efficiency linearly decreased with the increase and ranged between 12.5 % (PAR) 7.5 (optimal) 8.9 11.0. Photosynthetic activity, assessed measuring both chlorophyll fluorescence photosynthesis rate, was not much affected going from...
Since the 1950s, microalgae have been grown commercially in man-made cultivation units and used for biomass production as a source of food feed supplements, pharmaceuticals, cosmetics lately biofuels, well means wastewater treatment mitigation atmospheric CO2 build-up. In this work, photosynthesis growth affecting variables—light intensity, pH, CO2/O2 exchange, nutrient supply, culture turbulence, light/dark cell cycling, density depth (light path)—are reviewed concerns mass cultures....
Abstract The biotechnological potential of Nostoc linckia as a biofertilizer and source bioactive compounds makes it important to study its growth physiology productivity. Since nitrogen is fundamental component N. biomass, we compared the biochemical composition cultures grown in BG11 (i.e., presence nitrate) 0 (in absence nitrate). Cultures accumulated more cell biomass reaching dry weight 1.65 ± 0.06 g L –1 , 0.92 0.01 after 240 h culture. Biomass productivity was higher culture medium...
A photobioreactor in the form of a 245-m-long loop made plexiglass tubes having an inner diameter 2.6 cm was designed and constructed for outdoor culture Spirulina. The arranged two planes, with 15 8-m-long each plane. In upper plane, were placed vacant space between ones lower recycle performed either airlifts, one per or peristaltic pumps. power required water tubular photobioreactor, Reynolds number 4000, 3.93 x 10(-2) W m(-2). contained 145 L covered overall area 7.8 m(2). operation...
The saturating pulse fluorescence technique was applied to study photoinhibition of photosynthesis in outdoor cultures the cyanobacterium Spirulina platensis (Nordstedt) Geitler strain M2 grown under high oxygen and low temperature stress. Diurnal changes maximum photochemical yield (F v /F m ), photon PSII (ΔF/F ′m), nonphotochemical quenching (qN) were measured using a portable, pulse‐amplitude–modulated fluorometer. When solar irradiance reached value, F ΔF/F ′m ratios stress decreased by...
It is well known that over the last 60 years trend of long-lived greenhouse gas emissions have shown a strong acceleration. There an increasing concern and mounting opposition by public opinion to continue with use fossil energy. Western countries are presently involved in so-called energy transition objective abandoning for renewable sources. In this connection, hydrogen can play central role. One sustainable ways produce microalgae which possess two important natural catalysts: photosystem...
Microalgae cultures were used for a WW treatment to remediate nutrients while producing biomass and recycling water. In these trials, raceway ponds (RWPs; 1 0.5 ha) located next municipal (WW) plant in Mérida, Spain. The continuous, all-year-round microalgae production using as source of nutrients. Neither CO2 nor air was supplied cultures. objective validate photosynthesis monitoring techniques large-scale bioreactors. Various in-situ/ex-situ methods based on chlorophyll fluorescence oxygen...
Abstract Relationships between light intensity and chlorophyll concentration on hydrogen production were investigated in a sulfur‐deprived Chlamydomonas reinhardtii culture laboratory scale photobioreactor (PBR) equipped with two different stirring devices. In the first case, was mixed using conventional magnetic stir bar, while second it an impeller five turbines. Experiments carried out at 70 140 µmol photons m −2 s −1 combination concentrations of 12 24 mg L . A high (140 , supplied both...