Adriatic cyanobacteria potential for cogeneration biofuel production with oil refinery wastewater remediation

Haberle, Ines; Hrustić, Enis; Petrić, Ines; Pritišanac, Ena; Šilović, Tina; Magić, Lana; Geček, Sunčana; Budiša, Andrea; Blažina, Maria

doi:10.1016/j.algal.2020.101978

Cited by 8 publications

(4 citation statements)

References 74 publications

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“…As a result, the presence of UFA in a mixture of SFAs improves fuel efficiency at low temperatures. Nevertheless, high UFA is considered unfavorable for biodiesel production because of higher polymerizing tendency of unsaturated components [66]. Of note, high SFA and PUFA and low MUFA in the N-NO 3 −1 (−50%) condition would be a favorable feature for biodiesel quality [61].…”

Section: Fatty Acid Profiles Propertiesmentioning

confidence: 99%

Influence of Nutrient Manipulation on Growth and Biochemical Constituent in Anabaena variabilis and Nostoc muscorum to Enhance Biodiesel Production

et al. 2021

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The present study aims to improve biomass and biochemical constituents, especially lipid production of Anabaena variabilis and Nostoc muscorum by formulating an optimal growth condition using various concentrations of nutrients (NO3−, PO43− and CO32−) for biodiesel production. The supplementation of the three nutrients by +50% showed the maximum dry weight and biomass productivity, while the macromolecule contents were varied. The depletion of N-NO3− by 50% N-NO3− showed the maximum lipid yield (146.67 mg L−1) in A. variabilis and the maximum carbohydrate contents (285.33 mg L−1) in N. muscorum with an increase of 35% and 30% over control of the synthetic medium, respectively. However, variation in P-PO43− and C-CO32− showed insignificant improving results for all biochemical compositions in both cyanobacteria. A. variabilis was the superior species for lipid and protein accumulation; however, N. muscorum showed the maximum carbohydrate content. Accordingly, A. variabilis was selected for biodiesel production. In A. variabilis, −50% N-NO3− resulted in 35% higher lipid productivity compared to the control. Furthermore, the fatty acid profile and biodiesel quality-related parameters have improved under this condition. This study has revealed the strategies to improve A. variabilis lipid productivity for biodiesel production for small-scale in vitro application in terms of fuel quality under low nitrate levels.

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Section: Fatty Acid Profiles Propertiesmentioning

confidence: 99%

Influence of Nutrient Manipulation on Growth and Biochemical Constituent in Anabaena variabilis and Nostoc muscorum to Enhance Biodiesel Production

et al. 2021

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“…The most pronounced changes in FA composition are shortening of the C-chain length and reduction in the number of double bonds (increase in saturation). These characteristics are important indicators of FAME quality, responsible for suitability of the biomass for biodiesel production (Budisǎ et al, 2019;Haberle et al, 2020). The main criteria used for biodiesel quality assessment is the average degree of unsaturation (ADU), developed by Islam et al (2013).…”

Section: Resultsmentioning

confidence: 99%

“…The extraction procedure was repeated for three 30 min cycles in an ultrasonic water bath at 35°C (Aquasonic 750D). Extract was saponified, methylated and analyzed as described by Haberle et al (2020). FAME were analyzed by gasliquid chromatography (GLC) on a 6890N Network GC System equipped with a 5973 Network Mass Selective Detector with a capillary column (30m/0.25 mm/0.25 mm; cross linked 5% phenylmethylsiloxane) and ultra-high purity helium as the carrier gas.…”

Section: Lipid Content and Gc-ms Analysismentioning

confidence: 99%

Characterization of Pseudochloris wilhelmii potential for oil refinery wastewater remediation and valuable biomass cogeneration

Blažina

Fafanđel²,

Geček³

et al. 2022

Front. Mar. Sci.

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The microalgae of the genus Pseudochloris/Picochlorum are characterized by fast growth, and wide nutrient (type and concentration) and salinity tolerance, all contributing towards exploration of their use in high-density biomass production and wastewater bioremediation. In this study, removal of nitrogen and phosphorus nutrients from oil refinery wastewater was monitored during growth of the marine eukaryotic microalgae Pseudochloris wilhelmii, with emphasis on biochemical analyses of its biomass quality to evaluate suitability for biodiesel production. A series of growth experiments under various nutrient and light regimes were performed in a temperature range of 20-30°C to evaluate nutrient removal and biomass growth dependence on temperature. The highest removal rate of dissolved inorganic nitrogen reached under the given experimental conditions was 0.823 mmol/(gday) accompanied by the corresponding biomass productivity of 115.2 mg/(Lday). Depending on light and temperature, the final lipid concentration ranged 181.5 – 319.8 mg/L. Furthermore, increase in nutrient load decreased the maximum specific growth rate by 25%, and the maximum specific removal rate of the dissolved inorganic nitrogen by 19%, whereas the duration of bioremediation process was nearly doubled. In contrast, constant light exposure expedited the nitrogen removal, i.e. bioremediation process, by almost 40%, while supporting over three times higher biomass productivity and the highest maximum specific growth rate of 0.528 g/(gday). The conditions favoring the highest nitrogen removal and highest toxicity reduction in oil refinery wastewater are met at 24°C and 130 µmol phot/(m2s). The highest proportion of carbon-binding to the P. wilhelmii biomass was noticed under the same conditions, thus indicating them as the most favorable conditions for hydrocarbon removal as well as for CO2 sequestration. Pseudochloris wilhelmii therefore represents a promising candidate for oil refinery wastewater remediation and valuable biomass cogeneration on a large-scale.

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“…Marine cyanobacteria such as Cylindrospermum sp., Phormidium sp., Pseudanabaena sp., and Spirulina sp. were shown to be effective in the bioremediation of wastewater [ 4 , 5 ]. Marine cyanobacteria have their potential in the production of animal feed.…”

Section: Introductionmentioning

confidence: 99%

Recent Reports on Bioactive Compounds from Marine Cyanobacteria in Relation to Human Health Applications

Perera

Herath

Sanjeewa

et al. 2023

Life

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The ocean is a valuable natural resource that contains numerous biologically active compounds with various bioactivities. The marine environment comprises unexplored sources that can be utilized to isolate novel compounds with bioactive properties. Marine cyanobacteria are an excellent source of bioactive compounds that have applications in human health, biofuel, cosmetics, and bioremediation. These cyanobacteria exhibit bioactive properties such as anti-inflammatory, anti-cancer, anti-bacterial, anti-parasitic, anti-diabetic, anti-viral, antioxidant, anti-aging, and anti-obesity effects, making them promising candidates for drug development. In recent decades, researchers have focused on isolating novel bioactive compounds from different marine cyanobacteria species for the development of therapeutics for various diseases that affect human health. This review provides an update on recent studies that explore the bioactive properties of marine cyanobacteria, with a particular focus on their potential use in human health applications.

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Adriatic cyanobacteria potential for cogeneration biofuel production with oil refinery wastewater remediation

Cited by 8 publications

References 74 publications

Influence of Nutrient Manipulation on Growth and Biochemical Constituent in Anabaena variabilis and Nostoc muscorum to Enhance Biodiesel Production

Influence of Nutrient Manipulation on Growth and Biochemical Constituent in Anabaena variabilis and Nostoc muscorum to Enhance Biodiesel Production

Characterization of Pseudochloris wilhelmii potential for oil refinery wastewater remediation and valuable biomass cogeneration

Recent Reports on Bioactive Compounds from Marine Cyanobacteria in Relation to Human Health Applications

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