Thermophile mats of microalgae growing on the woody structure of a cooling tower of a thermoelectric power plant in Central Mexico

Covarrubias, Yadiralia; Cantoral-Uriza, Enrique A.; Casas-Flores, Sergio; García‐Meza, J. Viridiana

doi:10.1016/j.rmb.2016.04.001

Cited by 21 publications

(4 citation statements)

References 40 publications

(58 reference statements)

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“…Increasing temperature to the optimum range exponentially increases algal growth, but an increase or decrease in the temperature beyond the optimal point retards or even stops algae growth and activity [ 75 ]. The optimum temperature range for most algal species is 20–30 °C [ 76 ] although thermophile algae such as Anacystis nidulans and Chaetoceros can endure temperatures up to 40 °C and algae growing in hot spring near temperature 80 °C [ 77 ]. Growing microalgae cultures at non-optimal temperatures will result in high biomass losses, particularly in outdoor culture systems [ 63 , 78 , 79 ].…”

Section: Introductionmentioning

confidence: 99%

The promising future of microalgae: current status, challenges, and optimization of a sustainable and renewable industry for biofuels, feed, and other products

2018

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Microalgae have recently attracted considerable interest worldwide, due to their extensive application potential in the renewable energy, biopharmaceutical, and nutraceutical industries. Microalgae are renewable, sustainable, and economical sources of biofuels, bioactive medicinal products, and food ingredients. Several microalgae species have been investigated for their potential as value-added products with remarkable pharmacological and biological qualities. As biofuels, they are a perfect substitute to liquid fossil fuels with respect to cost, renewability, and environmental concerns. Microalgae have a significant ability to convert atmospheric CO2 to useful products such as carbohydrates, lipids, and other bioactive metabolites. Although microalgae are feasible sources for bioenergy and biopharmaceuticals in general, some limitations and challenges remain, which must be overcome to upgrade the technology from pilot-phase to industrial level. The most challenging and crucial issues are enhancing microalgae growth rate and product synthesis, dewatering algae culture for biomass production, pretreating biomass, and optimizing the fermentation process in case of algal bioethanol production. The present review describes the advantages of microalgae for the production of biofuels and various bioactive compounds and discusses culturing parameters.

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Section: Introductionmentioning

confidence: 99%

The promising future of microalgae: current status, challenges, and optimization of a sustainable and renewable industry for biofuels, feed, and other products

2018

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“…Similar trends have been reported for other thermophilic microalgae investigated in laboratory cultures such as Graesiella sp. (Mezhoud et al ., 2014) and diatom species of the genus Nitzschia , Pinnularia , Amphora and Stephanocyclus (Covarrubias et al ., 2016) and might be attributed to the complex interrelation between different species in the mat community that could provide stratification with cooler microhabitat temperature niches, which facilitate the survival of moderately thermophilic species (Covarrubias et al ., 2016).…”

Section: Discussionmentioning

confidence: 99%

“…While it is well documented that diatoms commonly acclimate better to low temperatures, as they are frequently described as cold-water flora (Anderson, 2000), some benthic ones, such as some species belonging to the genera Pinnularia , Nitzschia and Amphora , have shown be able to withstand extreme environments (Mannino, 2007; Covarrubias et al ., 2016). Diatoms are highly regarded for their versatile potential (Lebeau & Robert, 2003) in producing valuable and sustainable lipids with particularly valuable polyunsaturated fatty acids (PUFA), such as arachidonic acid (AA, 20:4n-6), eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3).…”

Section: Introductionmentioning

confidence: 99%

Impact of temperature and growth phases on lipid composition and fatty acid profile of a thermophilic Bacillariophyta strain related to the genus Halamphora from north-eastern Tunisia

et al. 2020

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A thermo-tolerant diatom species has been isolated from Tunisian hot spring water (40°C). The isolated diatom has been molecularly identified and classified into the genus Halamphora. The growth kinetics, lipid content and distribution of fatty acids were assessed at 20 and 30°C temperature levels and constant irradiance in controlled batch cultures (11 days). Halamphora sp. showed better growth (μ = 0.53 day−1) and a higher lipid yield (25% of the dry weight) at a higher temperature (30°C). Under the two temperatures tested, the highest lipid and fatty acid contents were mainly reached during the stationary growth phase. The fatty acid profile showed a significant content of two essential fatty acids, eicosapentaenoic acid (EPA, 20:5n-3) and arachidonic acid (AA, 20:4n-6), reaching ~15% and ~21% of the total fatty acids, respectively, at 20°C and 30°C. The distribution of the different components of the fatty acids showed that EPA and AA were mainly located in the neutral lipid fraction in the stationary phase.

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“…The optimum temperature range for most algal species is from 20 °C to 30 °C (Singh et al, 2015). Thermophilic algae, including Anacystis nidulans and Chaetoceros sp, could endure temperatures of up to 40 °C (Covarrubias et al, 2016). Non-optimal temperature could result in high biomass loss in microalgae, particularly in outdoor culture systems (Alabi et al, 2009;Hu et al, 2006).…”

Section: Temperaturementioning

confidence: 99%

Microalgae and the Factors Involved in Successful Propagation for Mass Production

Ramlee¹,

Rasdi²,

Wahid³

et al. 2021

JSSM

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Recently, microalgae have been regarded as useful organisms worldwide due to their potential for extensive application in renewable energy, aquaculture, biofuel and pharmaceuticals. Different species of microalgae have drawn significant interest because of their biological and chemical composition, which could potentially be useful in developing new applications in the aquaculture, biofuel and pharmaceutical industries. Furthermore, various culture techniques have been developed based on the species and environmental condition to ensure its mass production. Although microalgae are feasible sources for a successful biological product, limitations and challenges remain, which need to be solved with the innovation of new alternative technology in culturing and producing successful mass cultures. In this review, several current microalgae species production methods will be discussed based on their applications, and biological and chemical compositions, which are influenced by their growth parameters.

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Thermophile mats of microalgae growing on the woody structure of a cooling tower of a thermoelectric power plant in Central Mexico

Abstract: Revista Mexicana de Biodiversidad www.ib.unam.mx/revista/ Revista Mexicana de Biodiversidad 87 (2016) 277-287 Taxonomy and systematics Thermophile mats of microalgae growing on the woody structure of a cooling tower of a thermoelectric power plant in Central Mexico

Cited by 21 publications

References 40 publications

The promising future of microalgae: current status, challenges, and optimization of a sustainable and renewable industry for biofuels, feed, and other products

The promising future of microalgae: current status, challenges, and optimization of a sustainable and renewable industry for biofuels, feed, and other products

Impact of temperature and growth phases on lipid composition and fatty acid profile of a thermophilic Bacillariophyta strain related to the genus Halamphora from north-eastern Tunisia

Microalgae and the Factors Involved in Successful Propagation for Mass Production

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