Browsing by Author "Silva, Pedro Garcia Pereira"
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- Microalgae cultivated under magnetic field action: insights of aneEnvironmentally sustainable approachPublication . Deamici, Kricelle; Dziergowska, Katarzyna; Silva, Pedro Garcia Pereira; Michalak, Izabela; Santos, Lucielen Oliveira; Detyna, Jerzy; Kataria, Sunita; Brestic, Marian; Sarraf, Mohammad; Islam, MonirulMicroalgae and cyanobacteria include procaryotic and eucaryotic photosynthetic micro-organisms that produce biomass rich in biomolecules with a high value. Some examples of these biomolecules are proteins, lipids, carbohydrates, pigments, antioxidants, and vitamins. Currently, microalgae are also considered a good source of biofuel feedstock. The microalga-based biorefinery approach should be used to promote the sustainability of biomass generation since microalga biomass production can be performed and integrated into a circular bioeconomy structure. To include an environmentally sustainable approach with microalga cultures, it is necessary to develop alternative ways to produce biomass at a low cost, reducing pollution and improving biomass development. Different strategies are being used to achieve more productivity in cultivation, such as magnets in cultures. Magnetic forces can alter microalga metabolism, and this field of study is promising and innovative, yet remains an unexplored area. This review presents the current trends in the magnetic biostimulation of microalgae for the application of cultivated biomass in different areas of biotechnology, biofuel, and bioenergy production, as well as environmental protection.
- Update on the application of magnetic fields to microalgal culturesPublication . Santos, Lucielen Oliveira; Silva, Pedro Garcia Pereira; Machado, Bruno Roswag; Sala, Luisa; Deamici, Kricelle MosqueraSeveral studies have shown that any magnetic field (MF) applied to microalgae modifies its cultivation conditions and may favor biomolecule production since it interacts with the microorganisms and affect their growth. As a result, there are changes in concentrations and compositions of biomass and biomolecules. This review aims at updating MF applications to microalga cultures that were reported by studies conducted in the last 5 years. It shows the main studies that reached positive results of carbohydrate, lipid, protein and pigment production. Effects of MFs may be positive, negative or null, depending on some factors, such as intensity, exposure time, physiological state of cells and application devices. Therefore, this review details cultivation conditions used for reaching high concentration of biomolecules, explains the action of MFs on microalgae and describes their applicability to the biorefinery concept.