Simultaneous production of astaxanthin and lipids from Chlorella sorokiniana in the presence of reactive oxygen species: a biorefinery approach

Yadavalli, Rajasri; Ratnapuram, Hariprasad; Peasari, John Reddy; Reddy, C. Nagendranatha; Ashokkumar, Veeramuthu; Chandrasekhar, K.

doi:10.1007/s13399-021-01276-5

Cited by 20 publications

(9 citation statements)

References 33 publications

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“…A mutant, C. sorokiniana MB‐1‐M12 showed higher lutein productivity under semi‐continuous cultivation with a medium replacement ratio of 75%, simulating outdoor cultivation conditions (at 35°C/25°C for a 12 h/12 h light/dark cycle) 246 . In a recent study, the coproduction of astaxanthin and lipids was estimated for C. sorokiniana under mixotrophic cultivation using an external loop airlift photobioreactor, and the results suggested that this method could be economically viable, environmentally sustainable and of greater commercial potential 93 . Previously, internal loop airlift photobioreactor was also successfully used to enhance lutein productivity and decrease the cultivation cost, using crude glycerol for mixotrophic cultivation of Scenedesmus sp.…”

Section: Mixotrophic Cultivation Of Microalgae For Carotenoid Productionmentioning

confidence: 97%

“…83 Due to increasingly recognised health benefits and growingly required market demand for natural astaxanthin, a significant amount of recent research has focused on better understanding the production processes of microalgae-based astaxanthin. To date, Chlorella zofingiensis, 84,85 Haematococcus pluvialis, [86][87][88] Chlorococcum sp., 89,90 Tetraselmis sp., 91,92 Chlorella sorokiniana, 91,93 Chlorella protothecoides 94 and Scenedesmus obliquus 95 have been delineated as species of microalgae that might be able to produce natural astaxanthin. Among these species, H. pluvialis has been best developed and eventually employed to produce astaxanthin at commercially scales.…”

Section: Current Production Processes Of Astaxanthinmentioning

confidence: 99%

“…246 In a recent study, the coproduction of astaxanthin and lipids was estimated for C. sorokiniana under mixotrophic cultivation using an external loop airlift photobioreactor, and the results suggested that this method could be economically viable, environmentally sustainable and of greater commercial potential. 93 Previously, internal loop airlift photobioreactor was also successfully used to enhance lutein productivity and decrease the cultivation cost, using crude glycerol for mixotrophic cultivation of Scenedesmus sp. In fed-batch mode, step-wise addition of crude glycerol was found to be able to enhance cell biomass and lutein productivity.…”

Section: Mixotrophic Cultivation Of Other Species For Carotenoid Prod...mentioning

confidence: 99%

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Mixotrophic cultivation of microalgae for carotenoid production

Liaqat

Khazi

Bahadar

et al. 2022

Reviews in Aquaculture

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The intrinsic ability of microalgae to accumulate high amounts of carotenoids has made them the preferred aquatic organisms of biotechnological exploration for carotenoid production. To continuously innovate and modify microalgal bioprocesses, aquaculture scientists have been working hard for the past decades in a forwardlooking way, and mixotrophic cultivation of microalgae is deemed as a promising strategy to decrease production cost. This review is intended to summarise the recent research advancement of carotenoids production from mixotrophically cultivated microalgae, starting from the structure, biosynthesis, physiological roles and applications of carotenoids and followed by the production processes both currently established and under development. Most importantly, the microalgal physiology of mixotrophic cultivation is reviewed in depth both in general and specifically for the most studied species, and the prospects of commercially viable mixotrophic microalgal processes for carotenoid production along with the insight of future research are of course discussed. Finally, we conclude that mixotrophy might be a promising strategy for large-scale cultivation of microalgae to produce carotenoids although some technical obstacles need to be overcome.

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Section: Mixotrophic Cultivation Of Microalgae For Carotenoid Productionmentioning

confidence: 97%

Section: Current Production Processes Of Astaxanthinmentioning

confidence: 99%

Section: Mixotrophic Cultivation Of Other Species For Carotenoid Prod...mentioning

confidence: 99%

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Mixotrophic cultivation of microalgae for carotenoid production

Liaqat

Khazi

Bahadar

et al. 2022

Reviews in Aquaculture

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“…For example, there is significant research on scCO 2 extraction of microalgae for lipid extraction to afford extracts rich in fatty acids; palmitic, palmitoleic, linoleic, linolenic, and eicosapentaenoic acid (EPA), as well as carotenoids and α-tocopherols [ 3 ]. The composition of microalgal extractives can be selectively enriched by manipulating the growth and cultivation cycles of the microalgae [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Defibrillation of Microalgae

et al. 2021

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The first production of defibrillated celluloses from microalgal biomass using acid-free, TEMPO-free and bleach-free hydrothermal microwave processing is reported. Two routes were explored: i. direct microwave process of native microalgae (“standard”), and ii. scCO2 pre-treatment followed by microwave processing. ScCO2 was investigated as it is commonly used to extract lipids and generates considerable quantities of spent algal biomass. Defibrillation was evidenced in both cases to afford cellulosic strands, which progressively decreased in their width and length as the microwave processing temperature increased from 160 °C to 220 °C. Lower temperatures revealed aspect ratios similar to microfibrillated cellulose whilst at the highest temperature (220 °C), a mixture of microfibrillated cellulose and nanocrystals were evidenced. XRD studies showed similar patterns to cellulose I but also some unresolved peaks. The crystallinity index (CrI), determined by XRD, increased with increasing microwave processing temperature. The water holding capacity (WHC) of all materials was approximately 4.5 g H2O/g sample. The materials were able to form partially stable hydrogels, but only with those processed above 200 °C and at a concentration of 3 wt% in water. This unique work provides a new set of materials with potential applications in the packaging, food, pharmaceutical and cosmetic industries.

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“…Fossil fuel-based energy resources are the highest standard energy bases worldwide, which are accounted for 85.5%. However, the fossil-fuel-based energy economy leads to environmental issues, such as greenhouse gas emissions, raising the atmospheric temperature, and causing severe health-related issues to human beings [1][2][3][4]. Further, there were limited reserves of fossil fuel; hence, there is a serious search for other alternative fuel sources [5,6].…”

Section: Introductionmentioning

confidence: 99%

Bioelectrochemical system-mediated waste valorization

Chandrasekhar

Kumar

Raj

et al. 2021

Syst Microbiol and Biomanuf

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Bioelectrochemical systems (BESs) are a new and emerging technology in the field of fermentation technology. Electrical energy was provided externally to the microbial electrolysis cells (MECs) to generate hydrogen or value-added chemicals, including caustic, formic acid, acetic acid, and peroxide. Also, BES was designed to recover nutrients, metals or remove recalcitrant compounds. The variety of naturally existing microorganisms and enzymes act as a biocatalyst to induce potential differences amid the electrodes. BESs can be performed with non-catalyzed electrodes (both anode and cathode) under favorable circumstances, unlike conventional fuel cells. In recent years, value-added chemical producing microbial electrosynthesis (MES) technology has intensely broadened the prospect for BES. An additional strategy includes the introduction of innovative technologies that help with the manufacturing of alternative materials for electrode preparation, ion-exchange membranes, and pioneering designs. Because of this, BES is emerging as a promising technology. This article deliberates recent signs of progress in BESs so far, focusing on their diverse applications beyond electricity generation and resulting performance.

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Simultaneous production of astaxanthin and lipids from Chlorella sorokiniana in the presence of reactive oxygen species: a biorefinery approach

Cited by 20 publications

References 33 publications

Mixotrophic cultivation of microalgae for carotenoid production

Mixotrophic cultivation of microalgae for carotenoid production

Microwave-Assisted Defibrillation of Microalgae

Bioelectrochemical system-mediated waste valorization

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