Enhancement of Spirulina biomass production and cadmium biosorption using combined static magnetic field

Shao, Weilan; Ebaid, Reham; Abomohra, Abd El‐Fatah; Shahen, Mohamed

doi:10.1016/j.biortech.2018.06.009

Cited by 62 publications

(20 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results also confirmed that lipid-free residue can be used as feedstock for biogas production with an average methane yield of about 290 mL•g −1 VS. In addition, Shao et al, (2018) reported the efficiency of Cd 2+sorbed Arthrospira platensis for bioethanol production due to the accumulation of carbohydrates. Moreover, Chagas et al, (2016) studied the catalytic pyrolysis of Arthrospira platensis and Arthrospira maxima using pyrolysis/GC-MS.…”

Section: Environmental Impactsmentioning

confidence: 99%

“…On the other hand, the limited availability of fossil fuels and their environmental issues, especially participation in global warming, enhanced the extensive worldwide search for new renewable energy sources with combined CO 2 mitigation. Spirulina was discussed as one of microalgae capable of producing different kinds of bioenergy with high efficiency of CO 2 fixation (Sumprasit et al, 2017;Shao et al, 2018;Rempel et al, 2018), which provides the advantage of an eco-friendly utilization of Spirulina. The main aim of the present work was to provide a critical overview of the current status of the pharmaceutical applications of Spirulina, including antioxidant, anti-inflammatory, anti-cancer, antimicrobial, anti-diabetes & obesity and anti-toxicity activities.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pharmaceutical applications and consequent environmental impacts of <em>Spirulina (Arthrospira)</em>: An overview

et al. 2019

View full text Add to dashboard Cite

Recently, microalgae cultivation for different applications, including the production of nutritional and pharmaceutical active compounds has received increasing attention. Among the different genera, Spirulina (Arthrospira sp.) is one of the most promising blue-green microalgae (Cyanophyta) because it is rich in antioxidants, essential amino acids (EAAs), minerals, proteins, polyunsaturated fatty acids and vitamins. It has a high protein content (60-70% of the dry weight), which is a complete protein, i.e. containing all EAAs. Therefore, Spirulina is currently a commercial product with high nutritional value and also a significant source of complementary and alternative medicine. The objective of the present work was to review the pharmaceutical and therapeutic applications of Spirulina, especially its antioxidant, anti-inflammatory, anti-cancer, anti-microbial, anti-diabetic, anti-obesity and anti-toxicity properties. The results were obtained from experiments in the literature performed in vitro and in vivo using experimental animals. The main reported active ingredients in Spirulina include phycocyanin, tocopherol, β-carotene, caffeic acids and chlorogenic acid, which showed individual or synergetic effects. In addition, the present review discusses the future perspectives of genetically modified Spirulina as a source for industrial products while producing valuable biomass photoautotrophically. Furthermore, the consequent environmental impacts of large-scale cultivation of Spirulina are discussed.

show abstract

Section: Environmental Impactsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pharmaceutical applications and consequent environmental impacts of <em>Spirulina (Arthrospira)</em>: An overview

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Static permanent magnetic field (SMF) is a typical magnetic field which can influence or alter the metabolism of microorganisms, promoting or inhibiting cell growth. It always applied in promoting the seed germination rate, growth, and pigments contents in plant (Cakmak, Dumlupinar, & Erdal, 2010) because it is high effective, low‐cost, convenient to use, nontoxic to biomass, wide range of possible applications, and no secondary pollution (Shao, Ebaid, Abomohra, & Shahen, 2018). Most studies thought SMF regulate organism metabolism through influencing the electron transportation, protein and enzyme conformation and activity concentration, free radicals concentration or characteristics, membrane permeability, and water components.…”

Section: Introductionmentioning

confidence: 99%

Bioeffect of static magnetic field on photosynthetic bacteria: Evaluation of bioresources production and wastewater treatment efficiency

Wang

et al. 2020

Water Environment Research

View full text Add to dashboard Cite

Photosynthetic bacteria (PSB) technology is a promising method for biomass, protein, pigments, and other value‐added substances generation from wastewater. However, the above bioresources production efficiency is relatively low. In this work, a static magnetic field (SMF) was used to promote bioresources production. Results showed that SMF had positive effects on value‐added substances production. With 0.35 Tesla (T) SMF, the PSB biomass, protein, carotenoids, and bacteriochlorophyll concentration were promoted by 31.1%, 22.6%, 56.7%, and 73.1% compared with the control group, respectively. Biomass yield finally reached 0.58 g biomass/g COD removal, which was promoted by 37.1%. The doubling time was shortened by 37.9% in 0.35 T group, showing that SMF can promote cell growth. With 0.35 T SMF, the intracellular NADH dehydrogenase and ATP synthase activities concentration increased by 23.4% and 29.1%, respectively, thus increased the ATP content by 38.0%. Succinic dehydrogenase activity concentration greatly increased by 609.0% at 48 hr, which potentially accelerated the tricarboxylic acid cycle and COD degradation as well as enhanced biomass production. Practitioner points SMF promoted PSB bioresource production during wastewater treatment processing. Biomass, protein, carotenoids, and Bchl concentration were promoted by 31.1%, 22.6%, 56.7%, and 73.1%, respectively. PSB yield of 0.35 T group was promoted by 37.1% compared with the control group. SDH concentration of 0.35 T was promoted by 609.0% compared with the control group. Increased NADH and ATP synthase activity concentration by SMF enhanced energy metabolism.

show abstract

“…Microalgae are abundant in macromolecules and other biologically active substances including amino acids, carotenoids of polysaccharides and fatty acids. Microalgae have therefore been used extensively in food, aquaculture, pharmaceuticals and biofuels (Shao et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Assessment of phytochemical components, proximate composition and antioxidant properties of Scenedesmus obliquus, Chlorella vulgaris and Spirulina platensis algae extracts

El-Chaghaby¹,

Rashad²,

Abdel-Kader³

et al. 2019

Egypt. J. of Aquatic Biolo. and Fish.

View full text Add to dashboard Cite

In recent decades, natural antioxidant alternatives have become a trending topic for replacing artificial antioxidants. Microalgae have been reported to display interesting bioactive properties and their antioxidant activity is one of them. This study aims to evaluate the antioxidant capacity, phytochemical constituents and proximate composition of three microalgae Scenedesmus obliquus, Chlorella vulgaris and Spirulina platensis. The performed preliminary phytochemical analysis of the algae extracts revealed that they contain good amounts of bioactive compounds. The results showed that the highest total antioxidant activity found was (3720.67 mgAAE/100g) in Spirulina platensis, followed by Chlorella vulgaris (2794.80 mgAAE/100g). The lowest activity was noticed for Scenedesmus obliquus (1718.53 mgAAE/100g). As for total phenolic content, Spirulina recorded the highest phenolic content (2238.46 mgGAE/Kg.), followed by Chlorella (710.33mg GAE/Kg.), and then Scenedesmus (511.20 mgGAE/Kg). The total flavonoids content of algal extracts expressed as mgQE/Kg varied from (548.66) for Chlorella vulgaris, (142.23) for Spirulina platensis to (66.56) for Scenedesmus obliquus. The proximate analysis results indicated high values of protein for Spirulina platensis (53.30 % dry wt.) whereas the highest fat, ash and moisture percentages were recorded by Scenedesmus obliquus (15.13, 15.07 and 2.57, respectively).

show abstract

Enhancement of Spirulina biomass production and cadmium biosorption using combined static magnetic field

Cited by 62 publications

References 40 publications

Pharmaceutical applications and consequent environmental impacts of <em>Spirulina (Arthrospira)</em>: An overview

Pharmaceutical applications and consequent environmental impacts of <em>Spirulina (Arthrospira)</em>: An overview

Bioeffect of static magnetic field on photosynthetic bacteria: Evaluation of bioresources production and wastewater treatment efficiency

Assessment of phytochemical components, proximate composition and antioxidant properties of Scenedesmus obliquus, Chlorella vulgaris and Spirulina platensis algae extracts

Contact Info

Product

Resources

About