Extraction of hydrocarbons from freshwater green microalgae (<i>Botryococcus</i> sp.) biomass after phycoremediation of domestic wastewater

Gani, Paran; Sunar, Norshuhaila Mohamed; Matias-Peralta, Hazel Monica; Mohamed, Radin Maya Saphira Radin; Latiff, Ab Aziz Abdul; Parjo, Umi Kalthsom

doi:10.1080/15226514.2017.1284743

Cited by 41 publications

(11 citation statements)

References 44 publications

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“…The results from OLA display a different scenario. In particular, with the control group, f/2 medium, there was a drastic reduction from 49.0 to 33.1 μg mL −1 for the concentration of OLA after 12 h. All the groups were aerated, and it has previously been reported that this could affect the removal of some pollutants in the growth medium [ 33 ]. The same trend occurred in all the groups, a drastic reduction in the first 12 h, with a more pronounced reduction in the group of immobilised cells, from 49.0 to 29.9 μg mL −1 , and in the free cells group, from 49.0 to 19.8 μg mL −1 .…”

Section: Resultsmentioning

confidence: 99%

Removal of Pharmaceuticals from Water by Free and Imobilised Microalgae

et al. 2020

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Pharmaceuticals and their metabolites are released into the environment by domestic, hospital, and pharmaceutical industry wastewaters. Conventional wastewater treatment technology does not guarantee effluents of high quality, and apparently clean water may be loaded with pollutants. In this study, we assess the performance and efficiency of free and immobilised cells of microalgae Nannochloropsis sp. in removing four pharmaceuticals, chosen for their occurrence or persistence in the environment. These are paracetamol, ibuprofen, olanzapine and simvastatin. The results showed that free microalgae cells remain alive for a longer time than the immobilised ones, suggesting the inhibition of cell proliferation by the polymeric matrix polyvinyl alcohol. Both cells, free and immobilised, respond differently to each pharmaceutical. The removal of paracetamol and ibuprofen by Nannochloropsis sp., after 24 h of culture, was significantly higher in immobilised cells. Free cells removed a significantly higher concentration of olanzapine than immobilised ones, suggesting a higher affinity to this molecule than to paracetamol and ibuprofen. The results demonstrate the effectiveness of Nannochloropsis sp. free cells for removing olanzapine and Nannochloropsis sp. immobilised cells for removing paracetamol and ibuprofen.

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Section: Resultsmentioning

confidence: 99%

Removal of Pharmaceuticals from Water by Free and Imobilised Microalgae

et al. 2020

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“…The growth of Botryococcus sp reached a half of the log phase at 8 or 9 days. Gani et al, (2017) reported that the middle of exponential phase of Botryococcus sp was 12 days. On the basis of these data, Botryococcus sp with a 9 day age was chosen for use in the operation of a simple ICAF system with a variety of electric currents and operating times.…”

Section: Population Reduction Of Isochrysis Galbanamentioning

confidence: 99%

Reduction of Microalgae by Cupper Ion In Impressed Current Anti Fouling System for Biofouling Prevention in Saline Environment

Pratikno¹,

Titah²,

Handayanu³

2020

J. Ecol. Eng.

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The biofouling causes corrosion in marine environment, also known as the biological corrosion. The biological corrosion occurs in the metal material on coastal buildings, offshore buildings, port buildings and shipboard. One method to prevent the biological corrosion is ICAF (Impressed Current Anti-Fouling). The study on the microalgae that cause biofouling was conducted in laboratory scale using a simple ICAF system. The variables were the operating time of the simple ICAF system, the strength of the electric current and the species of microalgae. The determination of cell number of microalgae was conducted using a Neubauer improved Hemocytomete method, while determination of the concentration of Cu ion was conducted using Atomic Absorption Spectrophotometry (AAS). The aim of the research was to determine of microalgae, Isochrysis galbana and Botryococcus sp, population reduction using ICAF system. On the basis of the results, the highest population reduction occurred in Isochrysis galbana and Botryococcus sp reaching 77.5% and 50%, respectively. The highest concentration of Cu that was produced during the operation of the simple ICAF system reached 4.08 ± mg/L. In conclusion, ion Cu that was produced during the operation of the simple ICAF system can reduce the cell number of Isochrysis galbana and Botryococcus sp.

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“…Methanolic extracts of exopolysaccharides Antioxidant [40] Botryococcus braunii Linear alkadienes (C25, C27, C29, and C31), triene (C29) Phycoremediation [41] Chlorella sp.…”

Section: Arthrospira Platensismentioning

confidence: 99%

The Usefulness of Microalgae Compounds for Preventing Biofilm Infections

López

Soto

2019

Antibiotics

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Biofilms play an important role in infectious diseases. It has been estimated that most medical infections are due to bacterial biofilms, and about 60–70% of nosocomial infections are also caused by the formation of a biofilm. Historically, microalgae are an important source of bioactive compounds, having novel structures and potential biological functions that make them attractive for different industries such as food, animal feed, aquaculture, cosmetics, and pharmaceutical. Several studies have described compounds produced by microalgae and cyanobacteria species with antimicrobial activity. However, studies on the antibiofilm activity of extracts and/or molecules produced by these microorganisms are scarce. Quorum-sensing inhibitor and anti-adherent agents have, among others, been isolated from microalgae and cyanobacteria species. The use of tools such as nanotechnology increase their power of action and can be used for preventing and treating biofilm-related infections.

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Extraction of hydrocarbons from freshwater green microalgae (Botryococcus sp.) biomass after phycoremediation of domestic wastewater

Cited by 41 publications

References 44 publications

Removal of Pharmaceuticals from Water by Free and Imobilised Microalgae

Removal of Pharmaceuticals from Water by Free and Imobilised Microalgae

Reduction of Microalgae by Cupper Ion In Impressed Current Anti Fouling System for Biofouling Prevention in Saline Environment

The Usefulness of Microalgae Compounds for Preventing Biofilm Infections

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