Kinetic model of Chlorella vulgaris growth with and without extremely low frequency-electromagnetic fields (EM-ELF)

Beruto, D.; Lagazzo, Alberto; Frumento, Davide; Converti, Attílio

doi:10.1016/j.jbiotec.2013.10.035

Cited by 15 publications

(11 citation statements)

References 25 publications

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“…Small et al [ 90 ] cited that MF alters the concentrations of free radicals due to increased oxidative stress, with this being the most likely mechanism for the effect of MF on microalgae. Beruto et al [ 91 ] concluded that the low frequency electromagnetic fields (EM-ELF) did not act on the mitotic division, but played a significant role in promoting cell clusterization in the liquid phase. Wang et al [ 92 ] observed that MF increases the microalgae growth and regulates its antioxidant defense system to protect cells efficiently.…”

Section: The Effects Of Mfs On Microalgaementioning

confidence: 99%

Magnetic Field (MF) Applications in Plants: An Overview

Sarraf

Kataria

Taimourya

et al. 2020

Plants

131

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Crop yield can be raised by establishment of adequate plant stand using seeds with high germination ratio and vigor. Various pre-sowing treatments are adopted to achieve this objective. One of these approaches is the exposure of seeds to a low-to-medium level magnetic field (MF), in pulsed and continuous modes, as they have shown positive results in a number of crop seeds. On the basis of the sensitivity of plants to MF, different types of MF have been used for magnetopriming studies, such as weak static homogeneous magnetic fields (0–100 μT, including GMF), strong homogeneous magnetic fields (milliTesla to Tesla), and extremely low frequency (ELF) magnetic fields of low-to-moderate (several hundred μT) magnetic flux densities. The agronomic application of MFs in plants has shown potential in altering conventional plant production systems; increasing mean germination rates, and root and shoot growth; having high productivity; increasing photosynthetic pigment content; and intensifying cell division, as well as water and nutrient uptake. Furthermore, different studies suggest that MFs prevent the large injuries produced/inflicted by diseases and pests on agricultural crops and other economically important plants and assist in reducing the oxidative damage in plants caused by stress situations. An improved understanding of the interactions between the MF and the plant responses could revolutionize crop production through increased resistance to disease and stress conditions, as well as the superiority of nutrient and water utilization, resulting in the improvement of crop yield. In this review, we summarize the potential applications of MF and the key processes involved in agronomic applications. Furthermore, in order to ensure both the safe usage and acceptance of this new opportunity, the adverse effects are also discussed.

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Section: The Effects Of Mfs On Microalgaementioning

confidence: 99%

Magnetic Field (MF) Applications in Plants: An Overview

Sarraf

Kataria

Taimourya

et al. 2020

Plants

131

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“…the maximum concentration obtainable [M L -3 ]. Since we will use the Beruto kinetic model [33] for estimating the global kinetics of Chlorella v. growth, we hereinafter will denote this second constant as…”

Section: Scale-up By 𝛑-Theoremmentioning

confidence: 99%

Scale-up of photo-bioreactors for microalgae cultivation by π-theorem

Paladino

Neviani

2020

Biochemical Engineering Journal

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“…In the second process, a light source is needed to perform the light-phase of the photosynthesis and obtaining the biochemical reducing agent NADPH 2 and the high energy compound ATP, both required in the dark-phase to reduce the CO 2 to new biomass. It has been recently reported (Beruto et al, 2014) an aggregation of Chlorella vulgaris triggered by the presence of a magnetic field, which could be influenced by the presence of light. That aggregation could improve the nutrient abatement from wastewater, however this phenomenon of clustered cells was not observed in the microscope in our experiments.…”

Section: Nutrient Removalmentioning

confidence: 99%

Influence of light presence and biomass concentration on nutrient kinetic removal from urban wastewater by Scenedesmus obliquus

Ruiz

Arbib

Álvarez-Díaz

et al. 2014

Journal of Biotechnology

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This work was aimed at studying the effect of light-darkness and high-low biomass concentrations in the feasibility of removing nitrogen and phosphorus from urban treated wastewater by the microalga Scenedesmus obliquus. Laboratory experiments were conducted in batch, where microalgae were cultured under different initial biomass concentrations (150 and 1500mgSSl(-1)) and light conditions (dark or illuminated). Nutrient uptake was more dependent on internal nutrient content of the biomass than on light presence or biomass concentration. When a maximum nitrogen or phosphorus content in the biomass was reached (around 8% and 2%, respectively), the removal of that nutrient was almost stopped. Biomass concentration affected more than light presence on the nutrient removal rate, increasing significantly with its increase. Light was only required to remove nutrients when the maximum nutrient storage capacity of the cells was reached and further growth was therefore needed. Residence times to maintain a stable biomass concentration, avoiding the washout of the reactor, were much higher than those needed to remove the nutrients from the wastewater. This ability to remove nutrients in the absence of light could lead to new configurations of reactors aimed to wastewater treatment.

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Kinetic model of Chlorella vulgaris growth with and without extremely low frequency-electromagnetic fields (EM-ELF)

Cited by 15 publications

References 25 publications

Magnetic Field (MF) Applications in Plants: An Overview

Magnetic Field (MF) Applications in Plants: An Overview

Scale-up of photo-bioreactors for microalgae cultivation by π-theorem

Influence of light presence and biomass concentration on nutrient kinetic removal from urban wastewater by Scenedesmus obliquus

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