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1. Algal consortia based metal detoxification of municipal wastewater: Implication on photosynthetic performance, lipid production, and defense responses

Author:
Dig Vijay Singh; Rana Pratap Singh
Source:
Science of the total environment 2022 v.814 pp. 151928
ISSN:
0048-9697
Subject:
Chlorococcum; Fourier transform infrared spectroscopy; Scenedesmus vacuolatus; Tetradesmus; antioxidant activity; ascorbic acid; biomass production; catalase; cysteine; decline; environment; glutathione-disulfide reductase; hydrogen peroxide; lipids; microalgae; municipal wastewater; oxidative stress; proline; remediation; superoxide dismutase; thiobarbituric acid-reactive substances; wastewater treatment
Abstract:
... The present investigation was carried out to assess the competence of artificially engineered microalgal consortia i.e. consortia 1 (Scenedesmus vacuolatus + Chlorococcum humicola), consortia 2 (Tetradesmus sp. + Scenedesmus vacuolatus), and consortia 3 (Chlorococcum humicola + Scenedesmus vacuolatus + Tetradesmus sp.) for municipal wastewater treatment and lipid production under laboratory condit ...
DOI:
10.1016/j.scitotenv.2021.151928

2. Biochemical and morphological characterization of freshwater microalga Tetradesmus obliquus (Chlorophyta: Chlorophyceae)

Author:
Cristiane do Carmo Cesário; Jimmy Soares; Jamile Fernanda Silva Cossolin; Allan Victor Martins Almeida; Jose Jovanny Bermudez Sierra; Mauricio de Oliveira Leite; Maria Clara Nunes; José Eduardo Serrão; Marcio Arêdes Martins; Jane Selia dos Reis Coimbra
Source:
Protoplasma 2022 v.259 no.4 pp. 937-948
ISSN:
0033-183X
Subject:
Tetradesmus; bioactive compounds; biomass production; cell walls; chlorophyll; chloroplasts; chromatin; freshwater; microalgae; mitochondria; physiology; rough endoplasmic reticulum
Abstract:
... Tetradesmus is a microalgal genus with biotechnological potential due to its rapid production of biomass, which is plenty in proteins, carbohydrates, lipids, and bioactives. However, its morphology and physiology need to be determined to guide better research to optimize the species cultivation and biocompounds processing. Thus, this study describes the biochemistry and morphology of the strain Te ...
DOI:
10.1007/s00709-021-01712-3

3. Bioresource potential of Tetradesmus obliquus UJEA_AD: critical evaluation of biosequestration rate, biochemical and fatty acid composition in BG11 media

Author:
Elvis K Ahiahonu; William W Anku; Ashira Roopnarain; Ezekiel Green; Penny P Govender; Mahloro H Serepa‐Dlamini
Source:
Journal of chemical technology and biotechnology 2022 v.97 no.3 pp. 689-697
ISSN:
0268-2575
Subject:
Tetradesmus; biodiesel; biomarkers; biomass production; biosequestration; biotechnology; carbohydrates; carbon dioxide; climate change; economic valuation; fatty acid composition; feedstocks; fossil fuels; freshwater; linolenic acid; microalgae; palmitic acid; specific growth rate; South Africa
Abstract:
... BACKGROUND: Microalgae biomass is regarded as one of the most promising renewable biomass energy resources with the potential as a sustainable biological climate change mitigation agent, raw material for commercially valuable products and fossil fuel replacement. In view of that, this study isolated, identified and evaluated the potential of an indigenous freshwater green microalga strain, Tetrade ...
DOI:
10.1002/jctb.6951

4. Biosorption of Heavy Metals From Tannery Effluents by Using Green Unicellular Microalga, Tetradesmus obliquus RDRL01

Author:
A.M. Rajalakshmi; T. Silambarasan; R. Dhandapani
Source:
Applied biological research 2022 v.24 no.1 pp. 28-37
ISSN:
0974-4517
Subject:
Fourier transform infrared spectroscopy; Tetradesmus; bioethanol; biological treatment; biomass; biosorption; cadmium; carbohydrates; chromium; cobalt; copper; heavy metals; lead; microalgae; nickel; research; tanneries; tannery effluents; toxicity; zinc; India
Abstract:
... In present study, ecofriendly biological treatment of tannery effluent was performed by using unicellular microalga Tetradesmus obliquus strain RDRL01, isolated from Sipcot, Vellore, Tamil Nadu (India). The microalga reduced heavy metals content viz., chromium, cobalt, nickel, cadmium, lead, zinc and copper by 99.1, 98.2, 97.4, 94.3, 98.3, 96.8 and 96.3%, respectively, after 15 days treatment of t ...
DOI:
10.5958/0974-4517.2022.00008.8

5. Carbon-induced effective lipid accumulation and self-flocculation for biofuel production of Tetradesmus obliquus FACHB-12

Author:
Yuwei Mi; Shangru Yang; Jiling Chen; Zhongtang Li; Lei Dong; Qun Wei; Yonghe Tang; Xiangmeng Ma
Source:
Journal of cleaner production 2022 v.355 pp. 131813
ISSN:
0959-6526
Subject:
Tetradesmus; biodiesel; biomass production; carbon; carbon dioxide fixation; dewatering; flocculation; fluorescence; fuel production; glucose; glycerol; lipids; microalgae; organic matter; starch; wastewater
Abstract:
... Utilizing rich organic matter in wastewater for microalgae cultivation is an attractive strategy to solve the high-cost issue in microalgae biodiesel production. In this study, common carbon sources in wastewater were used as nutrients to explore their effects on biomass accumulation and lipid production of Tetradesmus obliquus FACHB-12. The highest carbon fixation (1.2 g C·L⁻¹) and biomass accumu ...
DOI:
10.1016/j.jclepro.2022.131813

6. Co-culturing of microalgae and bacteria in real wastewaters alters indigenous bacterial communities enhancing effluent bioremediation

Author:
Isiri Adhiwarie Perera; Sudharsanam Abinandan; Logeshwaran Panneerselvan; Suresh R. Subashchandrabose; Kadiyala Venkateswarlu; Ravi Naidu; Mallavarapu Megharaj
Source:
Algal research 2022 v.64 pp. 102705
ISSN:
2211-9264
Subject:
Actinobacteria; Firmicutes; Tetradesmus; biodiesel; biomass production; bioremediation; coculture; dairy farming; microalgae; population dynamics; poultry; research; slaughterhouses; total nitrogen; wastewater
Abstract:
... Although microalgal–bacterial co-cultures have been largely investigated for nutrient removal, their application in treating real wastewaters is still debatable because effluent systems contain complex bacterial communities that might influence the overall bioremediation. We, therefore, verified the interaction effects of Tetradesmus obliquus IS2–Variovorax paradoxus IS1 co-culture and the native ...
DOI:
10.1016/j.algal.2022.102705

7. Combined inorganic nitrogen sources influence the release of extracellular compounds that drive mutualistic interactions in microalgal‒bacterial co-cultures

Author:
Isiri Adhiwarie Perera; Sudharsanam Abinandan; Suresh R. Subashchandrabose; Kadiyala Venkateswarlu; Ravi Naidu; Mallavarapu Megharaj
Source:
Journal of applied phycology 2022 v.34 no.3 pp. 1311-1322
ISSN:
0921-8971
Subject:
Tetradesmus; Variovorax paradoxus; algology; ammonium; bacteria; bioremediation; coculture; culture media; metabolites; microalgae; nitrates; nitrogen; wastewater
Abstract:
... We investigated the role of extracellular metabolites released during mutualistic interactions in co-cultures of a microalga, Tetradesmus obliquus IS2 or Coelastrella sp. IS3, and a bacterium, Variovorax paradoxus IS1, grown with varying levels of NO₃–N and NH₄–N. Both NO₃–N and NH₄–N were added to modified Bold’s basal medium at 16:0, 12:4, 8:8; 4:12 and 0:16 molar ratios by keeping a final N:P r ...
DOI:
10.1007/s10811-022-02711-4

8. Development of a low-cost cultivation medium for simultaneous production of biodiesel and bio-crude from the chlorophycean microalga Tetradesmus obliquus: A renewable energy prospective

Author:
Shankha Koley; Sashi Sonkar; Sourav Kumar Bagchi; Reeza Patnaik; Nirupama Mallick
Source:
Journal of cleaner production 2022 v.364 pp. 132658
ISSN:
0959-6526
Subject:
Tetradesmus; biodiesel; biomass production; diammonium phosphate; magnesium sulfate; microalgae; oils; production costs; summer; superphosphate; transesterification; urea; wet season; winter
Abstract:
... Microalgal biodiesel production experiences hurdles in every step, beginning from cultivation of microalgal strains for biomass generation followed by harvesting, drying, oil extraction, and transesterification, leading to higher cost of production. In this study, an approach was adopted to minimize the cost of biomass production by utilizing the locally available agricultural fertilizers, viz. ur ...
DOI:
10.1016/j.jclepro.2022.132658

9. Effect of brewery effluent inhibitors on Rhodotorula toruloides NCYC 921 cells grown in pure and mixed cultures at pH 4 and 6

Author:
Carla Dias; José A. L. Santos; Alberto Reis; Teresa Lopes da Silva
Source:
Archives of microbiology 2022 v.204 no.9 pp. 549
ISSN:
0302-8933
Subject:
Rhodosporidium toruloides; Rhodotorula; Tetradesmus; culture media; metabolism; microalgae; pH; toxicity; wastewater; yeasts
Abstract:
... The presence of inhibitor compounds in the culture medium can cause severe effects on the microorganisms cells. Brewery wastewaters present organic acids (acetic, propionic and butyric acids) which can severely affect yeast cells metabolism, when grown in pure cultures, although in mixed cultures they are able to develop. To understand the physiological changes on Rhodotorula toruloides (formerly ...
DOI:
10.1007/s00203-022-03153-9

10. Establishment of an efficient tray-drying process for qualitative biodiesel production from a locally isolated microalga Tetradesmus obliquus cultivated in polyhouse raceway ponds

Author:
Sourav Kumar Bagchi; Reeza Patnaik; P. Srinivasa Rao; Sashi Sonkar; Shankha Koley; Nirupama Mallick
Source:
Algal research 2022 v.64 pp. 102674
ISSN:
2211-9264
Subject:
Tetradesmus; biodiesel; biomass; energy; fatty acid methyl esters; microalgae; nitrogen; research; slurries; temperature; water content
Abstract:
... In this present investigation, a locally isolated green alga, Tetradesmus obliquus (Turp.) Kütz., grown in 16,000 L optimized culture volume in raceway ponds, was explored for the development of a rapid algal drying protocol using a self-designed tray-dryer. The biphasic nitrogen starved cultures were subjected to drying with 5, 7.5, and 10 mm algal slurry thickness at three different temperatures ...
DOI:
10.1016/j.algal.2022.102674

11. Evolution of a primary consumer in response to low and high food availability shapes life history traits and population demography

Author:
Quan Wan; Zhi-Yu Huang; Kun Zhang; Yi-Long Xi
Source:
Hydrobiologia 2022 v.849 no.4 pp. 929-943
ISSN:
0018-8158
Subject:
Brachionus angularis; Tetradesmus; demography; eutrophication; evolution; food availability; life history; population dynamics
Abstract:
... To test the hypotheses that individuals of rotifers adapted to high food levels are smaller at maturity than those adapted to low food levels, and that selection history has different effects on different life history traits and demographic variables of rotifers, we expose replicate populations of Brachionus angularis in low (LF) and high (HF) densities of Tetradesmus obliquus. Over 100 days (28 a ...
DOI:
10.1007/s10750-021-04749-w

12. Exploring Different Pretreatment Methodologies for Allowing Microalgae Growth in Undiluted Piggery Wastewater

Author:
Alice Ferreira; Daniel Figueiredo; Rodrigo Cardeiras; Rui Nabais; Francisca Ferreira; Belina Ribeiro; Cláudia M. d. S. Cordovil; F. Gabriel Acién; Luisa Gouveia
Source:
Agronomy 2022 v.12 no.3 pp. -
ISSN:
2073-4395
Subject:
Tetradesmus; agronomy; ammonia; aquatic environment; biomass production; chemical oxygen demand; color; electrocoagulation; eutrophication; freshwater; microalgae; nitrogen; organic matter; pH; phosphorus; toxicity; wastewater; water quality
Abstract:
... The overapplication of manure on agricultural soils leads to nitrogen and phosphorus discharge into the aquatic environment, resulting in serious eutrophication problems and decreased water quality. Piggery wastewater (PWW) can be treated by microalgae to recycle nutrients, but the toxic levels of ammonia and organic matter hinder their growth. Fresh water is usually used to dilute PWW, but it is ...
DOI:
10.3390/agronomy12030580

13. Extracellular Polymeric Substances Drive Symbiotic Interactions in Bacterial‒Microalgal Consortia

Author:
Isiri Adhiwarie Perera; Sudharsanam Abinandan; Suresh R. Subashchandrabose; Kadiyala Venkateswarlu; Nicole Cole; Ravi Naidu; Mallavarapu Megharaj
Source:
Microbial ecology 2022 v.83 no.3 pp. 596-607
ISSN:
0095-3628
Subject:
Tetradesmus; Variovorax paradoxus; bacteria; bacterial growth; commensalism; culture media; microalgae; microbial ecology; mutualism; nitrates; phosphates; plant hormones; polymers; polysaccharides; poultry; slaughterhouses; wastewater
Abstract:
... The importance of several factors that drive the symbiotic interactions between bacteria and microalgae in consortia has been well realised. However, the implication of extracellular polymeric substances (EPS) released by the partners remains unclear. Therefore, the present study focused on the influence of EPS in developing consortia of a bacterium, Variovorax paradoxus IS1, with a microalga, Tet ...
DOI:
10.1007/s00248-021-01772-1

14. Impact of Nitrate and Ammonium Concentrations on Co-Culturing of Tetradesmus obliquus IS2 with Variovorax paradoxus IS1 as Revealed by Phenotypic Responses

Author:
Isiri Adhiwarie Perera; Sudharsanam Abinandan; Suresh R. Subashchandrabose; Kadiyala Venkateswarlu; Ravi Naidu; Mallavarapu Megharaj
Source:
Microbial ecology 2022 v.83 no.4 pp. 951-959
ISSN:
0095-3628
Subject:
Tetradesmus; Variovorax paradoxus; ammonium; bacteria; carbon; chlorophyll; coculture; culture media; energy; microalgae; microbial ecology; nitrates; nitrogen; nutrient uptake; phenotype; wastewater
Abstract:
... Mutual interactions in co-cultures of microalgae and bacteria are well known for establishing consortia and nutrient uptake in aquatic habitats, but the phenotypic changes in terms of morphological, physiological, and biochemical attributes that drive these interactions have not been clearly understood. In this novel study, we demonstrated the phenotypic response in a co-culture involving a microa ...
DOI:
10.1007/s00248-021-01832-6

15. Impact of brewery wastewater inhibitors in pure and mixed cultures of the yeast Rhodosporidium toruloides NCYC 921 and the microalga Tetradesmus obliquus ACOI 204/07

Author:
Carla Dias; José A.L. Santos; Alberto Reis; Teresa Lopes da Silva
Source:
Biochemical engineering journal 2022 v.185 pp. 108518
ISSN:
1369-703X
Subject:
Rhodosporidium toruloides; Tetradesmus; cell viability; flow cytometry; metabolism; microalgae; wastewater; yeasts
Abstract:
... Brewery wastewater (BWW) is an appealing low-cost substrate for the production of single cell oils by oleaginous microorganisms. However, it may contain inhibitor compounds that may affect the microbial metabolism. This work investigated, for the first time, the presence of potential inhibitor compounds in primary brewery wastewater (PBWW) and secondary brewery wastewater (SBWW) for the pure and m ...
DOI:
10.1016/j.bej.2022.108518

16. Low-frequency ultrasound and nitrogen limitation induced enhancement in biomass production and lipid accumulation of Tetradesmus obliquus FACHB-12

Author:
Qun Wei; Jinjie Yao; Ruge Chen; Shangru Yang; Yonghe Tang; Xiangmeng Ma
Source:
Bioresource technology 2022 v.358 pp. 127387
ISSN:
0960-8524
Subject:
Tetradesmus; antioxidant activity; biomass production; lipid content; lipids; microalgae; nitrogen; nitrogen content; oxidation; photosynthesis; technology; ultrasonics
Abstract:
... The two-stage cultivation strategy was optimized in this study to simultaneously promote the growth and lipid accumulation of Tetradesmus obliquus. Results showed that the optimal dual-stress conditions were nitrogen concentration at 25 mg N·L⁻¹ and low-frequency ultrasound at 200 Watt, 1 min, and 8 h interval. The biomass and lipid content of Tetradesmus obliquus were increased by 32.1% and 44.5% ...
DOI:
10.1016/j.biortech.2022.127387

17. Media optimization design towards maximizing biomass production of Tetradesmus obliquus under mixotrophic conditions

Author:
Jihed Bentahar; Jean-Sébastien Deschênes
Source:
Bioresource technology reports 2022 v.17 pp. 100885
ISSN:
2589-014X
Subject:
Taguchi method; Tetradesmus; biomass production; calcium; experimental design; glucose; iron; magnesium; manganese; microalgae; nitrates; phosphates; sulfates; technology
Abstract:
... Maximizing biomass production is a key factor in developing large-scale microalgae cultivation. One major aspect to address is the cultivation medium composition in regards to the process objective. In this study, the effect of eight important nutrients/factors (glucose, nitrate, phosphate, sulfate, magnesium, iron, manganese, and calcium) and their interactions were investigated on the biomass pr ...
DOI:
10.1016/j.biteb.2021.100885

18. Nutritive capability of anaerobically digested black water increases productivity of Tetradesmus obliquus: Domestic wastewater as an alternative nutrient resource

Author:
Rahmania Admirasari; Stefan Hindersin; Klaus von Schwartzenberg; Dieter Hanelt
Source:
Bioresource technology reports 2022 v.17 pp. 100905
ISSN:
2589-014X
Subject:
Tetradesmus; algae; chlorophyll; energy; lipids; municipal wastewater; spores
Abstract:
... Domestic wastewater represents a potential source of nutrients, water and energy. In this study, Tetradesmus obliquus was grown in anaerobically digested black water (BW) to observe growth limitation factors and physiological performances of the algal cells. Supplementing BW with Fe²⁺, Mg²⁺, and Mn²⁺ allowed maximal growth and a significantly higher productivity (0.357 g DW L⁻¹ d⁻¹, compared to th ...
DOI:
10.1016/j.biteb.2021.100905

19. Phycoremediation potential of Tetradesmus sp. SVMIICT4 in treating dairy wastewater using Flat-Panel photobioreactor

Author:
Boda Ravi Kiran; S. Venkata Mohan
Source:
Bioresource technology 2022 v.345 pp. 126446
ISSN:
0960-8524
Subject:
Tetradesmus; absorption; biomass production; carbohydrates; carbon dioxide fixation; chlorophyll; electron transfer; fatty acid composition; fluorescence; photobioreactors; photosynthesis; wastewater; wastewater treatment
Abstract:
... Tetradesmus sp. SVMIICT4 was isolated and cultivated mixotrophically in a flat-panel photobioreactor (FP-PBR) for concurrent dairy wastewater treatment, carbon fixation, and biomass production. Integrated wastewater treatment showed good COD and nutrients removal efficiency accounting for biomass with an accumulation of carbohydrate (21.48 mg g⁻¹) and protein (19.52 mg g⁻¹). Chlorophyll a fluoresc ...
DOI:
10.1016/j.biortech.2021.126446

20. Primary brewery wastewater as feedstock for the yeast Rhodosporidium toruloides and the microalga Tetradesmus obliquus mixed cultures with lipid production

Author:
Carla Dias; Alberto Reis; José A.L. Santos; Luisa Gouveia; Teresa Lopes da Silva
Source:
Process biochemistry 2022 v.113 pp. 71-86
ISSN:
1359-5113
Subject:
Rhodosporidium toruloides; Tetradesmus; biomass production; culture media; feedstocks; lipid content; lipids; microalgae; mixed culture; molasses; sugarcane; urea; wastewater; yeasts
Abstract:
... Rhodosporidium toruloides and Tetradesmus obliquus pure and mixed cultures were grown on primary brewery wastewater (PBWW), with and without supplementation of sugarcane molasses (SCM) and urea. R. toruloides developed in pure cultures was not able to grow on PBWW, with or without supplementation, but grew in mixed cultures with the microalga T. obliquus in all media. In contrast, all T. obliquus ...
DOI:
10.1016/j.procbio.2021.12.019

21. Process engineering strategy for large scale outdoor cultivation of Tetradesmus obliquus CT02 coupled with pH guided CO2 feeding

Author:
Ankan Sinha; Ratan Kumar; Gargi Goswami; Debasish Das
Source:
Journal of environmental management 2022 v.318 pp. 115539
ISSN:
0301-4797
Subject:
Tetradesmus; biodiesel; biofertilizers; biomass; carbon dioxide; diurnal variation; environmental factors; environmental management; growth performance; lighting; microalgae; pH; photobioreactors
Abstract:
... A novel CO₂ tolerant microalga Tetradesmus obliquus CT02, was previously evaluated to be a suitable bio refinery platform for synthesis of bioactive molecules, biodiesel, and biofertilizer. In the present study, a process engineering strategy was developed targeting improved growth performance of the strain at large scale under fluctuating outdoor environmental conditions. The strategy relies on m ...
DOI:
10.1016/j.jenvman.2022.115539

22. Production of microalgae using pilot-scale thin-layer cascade photobioreactors: Effect of water type on biomass composition

Author:
Silvia Villaró; Ana Sánchez-Zurano; Martina Ciardi; Francisco Javier Alarcón; Elisa Clagnan; Fabrizio Adani; Ainoa Morillas-España; Carlos Álvarez; Tomás Lafarga
Source:
Biomass and bioenergy 2022 v.163 pp. 106534
ISSN:
0961-9534
Subject:
Adineta; Tetradesmus; algae culture; bioenergy; biomass production; freshwater; lipids; microalgae; nutrient content; photobioreactors; pig manure; wastewater
Abstract:
... The microalga Tetradesmus almeriensis was produced in a 63 m² thin-layer cascade photobioreactor using either freshwater supplemented with fertilisers, primary urban wastewater, secondary urban wastewater, or diluted fresh pig slurry. The reactors were operated in semi-continuous mode at dilution rate of 0.3 day⁻¹ for over a month. Overall, the biomass productivity was highly influenced by the typ ...
DOI:
10.1016/j.biombioe.2022.106534

23. Pyrolysis of Spirulina platensis, Tetradesmus obliquus and Chlorella vulgaris by TG-FTIR and Py-GC/MS: Kinetic analysis and pyrolysis behaviour

Author:
Wenwen Kong; Boxiong Shen; Jiao Ma; Jia Kong; Shuo Feng; Zhuozhi Wang; Lifu Xiong
Source:
Energy 2022 v.244 pp. 123165
ISSN:
0360-5442
Subject:
Arthrospira platensis; Chlorella vulgaris; Tetradesmus; amides; carbon dioxide; carbonization; energy; kinetics; lipids; microalgae; pyrolysis; pyrolysis gas chromatography
Abstract:
... The pyrolysis characteristics of Spirulina platensis (S. platensis), Tetradesmus obliquus (T. obliquus) and Chlorella vulgaris (C. vulgaris) were investigated by thermogravimetric-infrared spectrometry (TG-FTIR), pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), and kinetic models. The elemental and biochemical composition of different microalgae obviously influenced their pyrolysis behav ...
DOI:
10.1016/j.energy.2022.123165

24. Removal of heavy metals and hydrocarbons by microalgae from wastewater in the steel industry

Author:
M. Blanco-Vieites; D. Suárez-Montes; F. Delgado; M. Álvarez-Gil; A. Hernández Battez; E. Rodríguez
Source:
Algal research 2022 v.64 pp. 102700
ISSN:
2211-9264
Subject:
Arthrospira platensis; Chlorella sorokiniana; Chlorella vulgaris; Tetradesmus; bioremediation; industry; iron; microalgae; research; steel; wastewater
Abstract:
... Steel-industry effluents contain hazardous compounds such as heavy metals and hydrocarbons, which can damage the environment. Traditional remediation technologies generate secondary impacts and, therefore, developing more sustainable methods is imperative. In this work, the tolerance capacity of Tetradesmus obliquus, Chlorella sorokiniana, Chlorella vulgaris, Arthrospira platensis and Arthrospira ...
DOI:
10.1016/j.algal.2022.102700

25. Revealing the influencing mechanisms of polystyrene microplastics (MPs) on the performance and stability of the algal-bacterial granular sludge

Author:
Shuchang Huang; Bing Zhang; Yi Liu; Xueli Feng; Wenxin Shi
Source:
Bioresource technology 2022 v.354 pp. 127202
ISSN:
0960-8524
Subject:
Rhodobacter; Tetradesmus; algae; biomass; energy conservation; microbial communities; microplastics; oxidative stress; particle size; polystyrenes; protein secondary structure; sludge; total phosphorus; tryptophan; tyrosine; wastewater treatment
Abstract:
... Algal-bacterial granular sludge (ABGS) is an energy-saving and environment-friendly wastewater treatment technology; however, the effects of microplastics (MPs) on the performance and stability of the ABGS system remain unknown. Herein, the influencing mechanisms of polystyrene MPs (50 μm) on the ABGS were systematically investigated. The ABGS exhibited a high removal efficiency of MPs (over 96%) ...
DOI:
10.1016/j.biortech.2022.127202

26. Rhodosporidium toruloides and Tetradesmus obliquus Populations Dynamics in Symbiotic Cultures, Developed in Brewery Wastewater, for Lipid Production

Author:
Carla Dias; Luísa Gouveia; José A. L. Santos; Alberto Reis; Teresa Lopes da Silva
Source:
Current microbiology 2022 v.79 no.2 pp. 40
ISSN:
0343-8651
Subject:
Rhodosporidium toruloides; Tetradesmus; biomass; culture media; flow cytometry; lipid content; lipids; microalgae; mixed culture; molasses; sugarcane; wastewater; wastewater treatment; yeasts
Abstract:
... In this work, primary brewery wastewater (PBWW) and secondary brewery wastewater (SBWW) separately, or mixed at the ratios of 1:1 (PBWW:SBWW) and 1:7 (PBWW:SBWW), with or without supplementation with sugarcane molasses (SCM), were used as culture media for lipid production by a mixed culture of the oleaginous yeast Rhodosporidium toruloides NCYC 921 and the microalgae Tetradesmus obliquus (ACOI 20 ...
DOI:
10.1007/s00284-021-02683-7

27. Selection and characterization of plant-derived alkaloids with strong antialgal inhibition: growth inhibition selectivity and inhibitory mechanism

Author:
Guangpu Zhao; Yu Hong; Lihua Li; Hongkai Zhang; Rong Xu; Yuan Hao
Source:
Harmful algae 2022 v.117 pp. 102272
ISSN:
1568-9883
Subject:
Chlorella; Microcystis aeruginosa; Tetradesmus; ascorbic acid; capsaicin; catalase; chlorophyll; electron transfer; fluorescence; glutathione; growth retardation; hordenine; hydrogen peroxide; malondialdehyde; microalgae; photosystem II; phytoplankton; superoxide dismutase; surface water
Abstract:
... In recent years, researches on microalgae inhibition with plant-derived active substances have attracted much attention. In this study, the inhibition of six plant-derived alkaloids (neferine, isoliensinine, linensinine, nuciferine, capsaicin, and hordenine) on bloom-forming cyanobacteria Microcystis aeruginosa were investigated. The results showed that neferine and nuciferine had stronger inhibit ...
DOI:
10.1016/j.hal.2022.102272

28. Slip slidin’ away: Bristle‐driven gliding by Tetradesmus deserticola (Chlorophyta) in microfluidic chambers

Author:
Zoe G. Cardon; Elena L. Peredo; Cassidy M. Enloe; John S. Oakey; Shu‐Zon Wu; Magdalena Bezanilla
Source:
Journal of phycology 2022 v.58 no.4 pp. 626-630
ISSN:
0022-3646
Subject:
Tetradesmus; algology; ancestry; biofuels; carbohydrates; culture media; fluorescence; geometry; glass; liquids; microalgae; peptidase K; polydimethylsiloxane; silicates; soil
Abstract:
... Microalgae within the Scenedesmaceae are often distinguished by spines, bristles, and other wall characteristics. We examined the dynamic production and chemical nature of bristles extruded from the poles of Tetradesmus deserticola previously isolated from microbiotic crust. Rapidly growing cells in a liquid growth medium were established in polydimethylsiloxane microfluidic chambers specially des ...
DOI:
10.1111/jpy.13271

29. Study on the Interaction of Algal Peptides on Virulence Factors of Helicobacter pylori: In Silico Approach

Author:
Davoodbasha MubarakAli; Thirusangu Akshaya; Raghunathan Sathya; Navabshan Irfan
Source:
Applied biochemistry and biotechnology 2022 v.194 no.1 pp. 37-53
ISSN:
0273-2289
Subject:
Helicobacter pylori; Tetradesmus; algae; algorithms; biotechnology; computer simulation; drugs; energy; hydrogen; peptic ulcers; peptides; risk factors; stomach neoplasms; virulence
Abstract:
... In the Asian region, Helicobacter pylori infects about 80% populations, which is most leading cause of peptic ulcers, and it is an asymptomatic infection. Studies reported that the particular bacteria carry specific virulence factors that leads to severe complications. These virulence factors can be used as a drug targets to inhibit their growth and pathogenicity. Chronic infection with H. pylori ...
DOI:
10.1007/s12010-021-03716-4

30. The combined toxicity and mechanism of multi-walled carbon nanotubes and nano copper oxide toward freshwater algae: Tetradesmus obliquus

Author:
Rong Fang; Jilai Gong; Weicheng Cao; Zengping Chen; Danlian Huang; Jun Ye; Zhe Cai
Source:
Journal of environmental sciences (China) 2022 v.112 pp. 376-387
ISSN:
1001-0742
Subject:
Tetradesmus; carbon nanotubes; cell membranes; cupric oxide; freshwater; median effective concentration; oxidative stress; reactive oxygen species; toxicity; transmission electron microscopes; China
Abstract:
... Nanoparticles (NPs) are widely used for their special physical properties and released into the natural environment. When two types of NPs exist in the same environment, the presence of one type of NP may affect the properties of the other type of NP. This study investigated the toxic effects of multi-walled carbon nanotubes (MWCNTs) and copper oxide nanoparticles (CuO NPs) on Tetradesmus obliquus ...
DOI:
10.1016/j.jes.2021.05.020

31. The structure and diversity of microalgae-microbial consortia isolated from various local organic wastes

Author:
Min Su; Marta Dell'Orto; Giuliana D'Imporzano; Alessia Bani; Alex J. Dumbrell; Fabrizio Adani
Source:
Bioresource technology 2022 v.347 pp. 126416
ISSN:
0960-8524
Subject:
Chlorella; Tetradesmus; carbon; cows; microalgae; microbial contamination; risk; slurries; technology
Abstract:
... Pure microalgae cultivation in organic wastes may be hampered by their low adaptation to extreme growth conditions and by the risk of microbial contamination. This work aimed to isolate self-adapted microalgae-microbial consortia able to survive in organic wastes characterized by extreme conditions, to be then proposed for technological application in removing carbon and nutrients from wastes’ str ...
DOI:
10.1016/j.biortech.2021.126416

32. Bicarbonate for microalgae cultivation: a case study in a chlorophyte, Tetradesmus wisconsinensis isolated from a Norwegian lake

Author:
Ikumi Umetani; Eshetu Janka; Michal Sposób; Chris J. Hulatt; Synne Kleiven; Rune Bakke
Source:
Journal of applied phycology 2021 v.33 no.3 pp. 1341-1352
ISSN:
0921-8971
Subject:
Tetradesmus; aeration; algology; biodiesel; biomass; carbon dioxide; case studies; chlorophyll; fatty acid composition; fluorescence; inorganic carbon; lakes; microalgae; photosystem II; Norway
Abstract:
... Bicarbonate was evaluated as an alternative carbon source for a green microalga, Tetradesmus wisconsinensis, isolated from Lake Norsjø in Norway. Photosynthesis, growth, and lipid production were studied using four inorganic carbon regimes: (1) aeration only, (2) 20 mM NaHCO₃, (3) 5% (v/v) CO₂ gas, and (4) combination of 20 mM NaHCO₃ and 5% CO₂. Variable chlorophyll a fluorescence analysis reveale ...
DOI:
10.1007/s10811-021-02420-4

33. Biomass, lipid accumulation kinetics, and the transcriptome of heterotrophic oleaginous microalga Tetradesmus bernardii under different carbon and nitrogen sources

Author:
Baoyan Gao; Feifei Wang; Luodong Huang; Hui Liu; Yuming Zhong; Chengwu Zhang
Source:
Biotechnology for biofuels 2021 v.14 no.1 pp. 4
ISSN:
1754-6834
Subject:
Tetradesmus; absorption; biofuels; biomass; biotechnology; cells; chloroplasts; density; fatty acids; fuel production; genes; glucose; kinetics; lipid content; lipid metabolism; microalgae; nitrogen; nitrogen content; organic carbon; production technology; sequence analysis; starch; storage; synthesis; transcriptome; transcriptomics; urea; weight
Abstract:
... BACKGROUND: Heterotrophic cultivation of microalgae has been proposed as a viable alternative method for novel high-value biomolecules, enriched biomass, and biofuel production because of their allowance of high cell density levels, as well as simple production technology. Tetradesmus bernardii, a newly isolated high-yielding oleaginous microalga under photoautotrophic conditions, is able to grow ...
DOI:
10.1186/s13068-020-01868-9

34. Bioremediation of cattle manure using microalgae after pre-treatment with biomass ash

Author:
Catarina Viegas; Luísa Gouveia; Margarida Gonçalves
Source:
Bioresource technology reports 2021 v.14 pp. 100681
ISSN:
2589-014X
Subject:
Chlorella; Tetradesmus; bioremediation; cattle manure; circular economy; feeds; germination; liquids; microalgae; nutrient content; technology; watercress; wheat
Abstract:
... In this work, cattle manure was diluted and pre-treated with biomass ash to yield a liquid fraction and a solid precipitate. Microalgae grown in the liquid fraction, in batch and semi-continuous mode, achieved maximum biomass productivities of 522.9 and 554.3 mg L⁻¹ day⁻¹ (12 days) for Chlorella protothecoides and Tetradesmus obliquus, respectively. Nutrient removal efficiency was highest for the ...
DOI:
10.1016/j.biteb.2021.100681

35. A Comparative Study of the Growth and Nutrient Removal Effects of Five Green Microalgae in Simulated Domestic Sewage

Author:
Li Ji; Qili Ge; Yuan Li; Yifan Gao; Shulian Xie
Source:
Water 2021 v.13 no.24 pp. -
ISSN:
2073-4441
Subject:
Chlorella vulgaris; Hydrodictyon; Parachlorella kessleri; Scenedesmus quadricauda; Tetradesmus; ammonium nitrogen; biomass; chemical oxygen demand; comparative study; microalgae; municipal wastewater; nitrogen; sewage; specific growth rate; total nitrogen; total phosphorus; wastewater treatment; water
Abstract:
... Microalgae have shown great potential in wastewater treatment. This study evaluates the growth and nutrient removal characteristics of five different microalgae strains, namely Chlorella vulgaris, Tetradesmus obliquus, Parachlorella kessleri, Hydrodictyon sp., and Scenedesmus quadricauda, in simulated domestic wastewater. The five microalgae could adapt to wastewater, but the growth potential and ...
DOI:
10.3390/w13243613

36. Diversity of algal species present in waste stabilisation ponds and different factors affecting its enrichment and phototaxis

Author:
Swati Dahiya; Aparajita Shilpie; Gowtham Balasundaram; Raja Chowdhury; Pradeep Kumar; Arun Kumar Mishra
Source:
Chemistry and ecology 2021 v.37 no.6 pp. 515-529
ISSN:
1029-0370
Subject:
Actinastrum; Bacillariophyceae; Chlamydomonas reinhardtii; Chlorella sorokiniana; Chlorococcum; Cyanobacteria; Euglena; Scenedesmus; Selenastrum; Tetradesmus; Volvox; acetates; algae; chemistry; culture media; dominant species; green light; metagenomics; municipal wastewater; phototaxis; red light; species diversity; wastewater treatment; white light; winter; India
Abstract:
... Several algal species were found in the samples collected from a wastewater treatment plant located in Uttarakhand, India. Several media and their modifications were employed to understand the role of these elements and compounds in the species composition and proliferation. Euglena, Chlamydomonas-reinhardtii, Chlorella-sorokiniana, Chlorococcum, several diatoms and cyanobacteria were found in the ...
DOI:
10.1080/02757540.2021.1910242

37. Enhanced production of microalgal biomass and lipid as an environmentally friendly biodiesel feedstock through actinomycete co-culture in biogas digestate effluent

Author:
Bancha Kumsiri; Jeeraporn Pekkoh; Wasu Pathom-aree; Saisamorn Lumyong; Kittiya Phinyo; Chayakorn Pumas; Sirasit Srinuanpan
Source:
Bioresource technology 2021 v.337 pp. 125446
ISSN:
0960-8524
Subject:
Tetradesmus; biodiesel; biogas; biomass production; chlorophyll; coculture; cost effectiveness; feedstocks; indole acetic acid; microalgae; siderophores; technology
Abstract:
... In this study, an innovative approach to enhance the production of microalgal biomass and lipid as a promising sustainable feedstock for biodiesel was proposed using an actinomycetes co-culture with microalgae in the biogas digestate effluent (BDE) that can be employed as an environmentally friendly and cost-effective strategy. Among tested actinomycete isolates, Piscicocus intestinalis WA3 produc ...
DOI:
10.1016/j.biortech.2021.125446

38. Enhancement of microalgal biomass, lipid production and biodiesel characteristics by mixotrophic cultivation using enzymatically hydrolyzed chitin waste

Author:
Mohamed Gomaa; Maysa M.A. Ali
Source:
Biomass and bioenergy 2021 v.154 pp. 106251
ISSN:
0961-9534
Subject:
Aphanocapsa; N-acetylglucosamine; Tetradesmus; Trichoderma asperellum; biodiesel; biomass production; carbon; chitin; chitinase; culture media; experimental design; fuel production; kinetics; lipid content; microalgae; nitrates; nitrogen; saccharification; shrimp; temperature
Abstract:
... There is a growing interest for the mixotrophic cultivation of microalgae using sustainable natural carbon sources. Chitin from shrimp waste was hydrolyzed using chitinase from Trichoderma asperellum and was exploited for the mixotrophic cultivation of microalgae. Chitin saccharification was optimized using Box-Behnken design to produce 50.41% (w/w) of reducing sugars using chitin, 0.83% (w/v), ch ...
DOI:
10.1016/j.biombioe.2021.106251

39. Environmental impact of molecularly imprinted polymers used as analyte sorbents in mass spectrometry

Author:
Maria Guć; Beata Messyasz; Grzegorz Schroeder
Source:
Science of the total environment 2021 v.772 pp. 145074
ISSN:
0048-9697
Subject:
2,4-D; Daphnia magna; Tetradesmus; acetic acid; acrylamides; atmospheric pressure; chemical species; cross-linking reagents; detection limit; environment; environmental impact; ethylene glycol; mass spectrometry; methanol; molecular imprinting; polymerization; polymers; quercetin; rutin; solvents; sorbents; toxicity
Abstract:
... The molecularly imprinted polymers (MIPs) with the following herbicides used as templates 2,4-dichlorophenoxyacetic acid (2,4-D) or 4-chloro-2-methylphenoxy- acetic acid (MCPA) were synthesized by precipitation polymerization technique using 4-vinylpyridine (4-VP) as a functional monomer, ethylene glycol dimethacrylate (EGDMA) as a cross-linking agent, and 2,2′-azobisisobutyronitrile (AIBN) as an ...
DOI:
10.1016/j.scitotenv.2021.145074

40. Evaluation of microalgae as bioremediation agent for poultry effluent and biostimulant for germination

Author:
Catarina Viegas; Luísa Gouveia; Margarida Gonçalves
Source:
Environmental technology & innovation 2021 v.24 pp. 102048
ISSN:
2352-1864
Subject:
Chlorella vulgaris; Tetradesmus; biomass production; bioremediation; chemical oxygen demand; culture media; environmental technology; fertilizers; germination; lipids; microalgae; phosphorus; poultry; sugars; total nitrogen; total phosphorus; wheat
Abstract:
... This work addresses how a pre-treatment involving biomass ash influences the poultry effluent’s bioremediation using three microalga strains, such as Chlorella vulgaris, Chlorella protothecoides and Tetradesmus obliquus. The undiluted effluent served as the culture medium for the growth, both in batch and semi continuous modes, and the remediation efficiency and biomass production yield were quant ...
DOI:
10.1016/j.eti.2021.102048

41. Extracellular and intracellular phenol production by microalgae during photoautotrophic batch cultivation

Author:
Fabrizio Di Caprio; Luca Maria Pipitone; Pietro Altimari; Francesca Pagnanelli
Source:
New biotechnology 2021 v.62 pp. 1-9
ISSN:
1871-6784
Subject:
Chlorella; Tetradesmus; biomass production; biorefining; biotechnology; culture media; environmental sustainability; microalgae; nutrient availability; phenol
Abstract:
... Understanding the mechanisms of phenol production by microalgae can contribute to the development of microalgal biorefinery processes with higher economic and environmental sustainability. However, little is known about how phenols are produced and accumulate during microalgal cultivation. In this study, both extracellular and intracellular phenol production by two microalgal strains (Tetradesmus ...
DOI:
10.1016/j.nbt.2020.12.003

42. Flocculation properties of eight microalgae induced by aluminum chloride, chitosan, amphoteric polyacrylamide, and alkaline: Life-cycle assessment for screening species and harvesting methods

Author:
Quan Wang; Kazuyuki Oshita; Masaki Takaoka
Source:
Algal research 2021 v.54 pp. 102226
ISSN:
2211-9264
Subject:
Chlorella vulgaris; Coccomyxa; Tetradesmus; aluminum chloride; biodiesel; centrifugation; chitosan; composite polymers; dewatering; environmental impact; flocculation; freshwater; life cycle assessment; lipids; microalgae; models; polyacrylamide; research; slurries
Abstract:
... The flocculation performances of AlCl₃, chitosan, amphoteric polyacrylamide (acrylamide-methacrylic acid ester-acrylic acid copolymer [ACPAM]), and NaOH for eight microalga species were investigated. AlCl₃ had wide application for both freshwater and marine microalgae while NaOH could only flocculate marine microalgae. By contrast, chitosan was very effective to freshwater species with low dosage ...
DOI:
10.1016/j.algal.2021.102226

43. Green approach for the valorization of microalgae Tetradesmus obliquus

Author:
Luisa Gouveia; Jelena Molnar Jazić; Alice Ferreira; Snežana Maletić; Dragoljub Cvetković; Senka Vidović; Jelena Vladić
Source:
Sustainable chemistry and pharmacy 2021 v.24 pp. 100556
ISSN:
2352-5541
Subject:
Tetradesmus; antioxidants; biomass; carbon dioxide; feeds; green chemistry; microalgae; microwave treatment; solid wastes; ultrasonic treatment; zero wastes
Abstract:
... The main goal of this study was to develop an efficient, green approach for the valorization of Tetradesmus obliquus biomass, with zero waste. This microalga was selected because it is widespread, resistant, easy for cultivation, and fast-growing. In the first step, supercritical carbon dioxide (ScCO₂) extraction followed by rapid gas decompression was used for the extraction of biomass. The follo ...
DOI:
10.1016/j.scp.2021.100556

44. Identification and effect of ozone and ultrasound pretreatments on Desmodesmussp. and Tetradesmus obliquus proteins

Author:
R.M. González-Balderas; S.B. Velasquez-Orta; M. Felix; C. Bengoechea; I. Yañez Noguez; M.T. Orta Ledesma
Source:
Algal research 2021 v.60 pp. 102514
ISSN:
2211-9264
Subject:
Tetradesmus; biomass; crosslinking; disulfide bonds; glass transition temperature; histidine; methionine; microalgae; ozone; phenylalanine; polyacrylamide gel electrophoresis; protein concentrates; protein solubility; protein structure; research; tryptophan; tyrosine; ultrasonics; wastewater
Abstract:
... Either ozone or ultrasound pretreatment was applied to identify and evaluate their effect over the protein fraction of Desmodesmussp. and Tetradesmus obliquus biomass cultivated in wastewater. Studies of SDS-PAGE, protein solubility, sulfhydryl and disulphide bond contents, and DSC were performed to evaluate the effect of each pretreatment on abundance, structure, and thermal properties of the pro ...
DOI:
10.1016/j.algal.2021.102514

45. Increasing Phosphorus Uptake Efficiency by Phosphorus-Starved Microalgae for Municipal Wastewater Post-Treatment

Author:
Aigars Lavrinovičs; Fredrika Murby; Elīna Zīverte; Linda Mežule; Tālis Juhna
Source:
Microorganisms 2021 v.9 no.8 pp. -
ISSN:
2076-2607
Subject:
Ankistrodesmus falcatus; Botryococcus braunii; Chlorella vulgaris; Tetradesmus; alkaline phosphatase; biomass; microalgae; municipal wastewater; phosphorus; starvation
Abstract:
... Four microalgal species, Chlorella vulgaris, Botryococcus braunii, Ankistrodesmus falcatus, and Tetradesmus obliquus were studied for enhanced phosphorus removal from municipal wastewater after their exposure to phosphorus starvation. Microalgae were exposed to phosphorus starvation conditions for three and five days and then used in a batch experiment to purify an effluent from a small WWTP. Afte ...
DOI:
10.3390/microorganisms9081598

46. Integrating municipal wastewater treatment with CO2 fixation and fatty acid production by cultivating Tetradesmus obliquus

Author:
Wenwen Kong; Jia Kong; Honghong Lyu; Jiao Ma; Peng Yuan; Zhuozhi Wang; Boxiong Shen; Shuo Feng
Source:
Journal of cleaner production 2021 v.320 pp. 128916
ISSN:
0959-6526
Subject:
Tetradesmus; biofuels; biomass; carbon dioxide; carbon dioxide fixation; energy; fatty acids; feedstocks; kinetics; microalgae; municipal wastewater; nitrogen; phosphorus; specific growth rate; wastewater treatment
Abstract:
... This study aimed to reveal the potential of microalgae for purifying wastewater, reducing carbon dioxide (CO₂) emissions, and simultaneously providing potential biofuel feedstock for energy security. Tetradesmus obliquus (T. obliquus) was cultured in municipal wastewater supplemented with different NH₄Cl (0, 50, 100 mg L⁻¹ NH₄Cl) and CO₂ concentrations (5%, 10% and 15% v/v). The results showed tha ...
DOI:
10.1016/j.jclepro.2021.128916

47. Lumped intracellular dynamics: Mathematical modeling of the microalgae Tetradesmus obliquus cultivation under mixotrophic conditions with glycerol

Author:
Priscila P. Dario; Wellington Balmant; Fabiana R. Lírio; Luiz P. Ramos; Johana G. Blanco; Daniela Y. Sugai; José V.C. Vargas; Beatriz Santos; André B. Mariano
Source:
Algal research 2021 v.57 pp. 102344
ISSN:
2211-9264
Subject:
Tetradesmus; biodiesel; biomass; glycerol; industrial wastes; mathematical models; metabolism; metabolites; microalgae; prediction; research
Abstract:
... Microalgae can be grown mixotrophically with compounds from industrial waste, such as glycerol, obtained from biodiesel production. Therefore, considering the concerns regarding the showed, this work developed the mathematical modeling of the microalgae Tetradesmus obliquus in the photoautotrophic and mixotrophic cultivation using glycerol. The logistic factor hypothesis is based on the main route ...
DOI:
10.1016/j.algal.2021.102344

48. Microalgae derived biomass and bioenergy production enhancement through biogas purification and wastewater treatment

Author:
B. Miyawaki; A.B. Mariano; J.V.C. Vargas; W. Balmant; A.C. Defrancheschi; D.O. Corrêa; B. Santos; N.F.H. Selesu; J.C. Ordonez; V.M. Kava
Source:
Renewable energy 2021 v.163 pp. 1153-1165
ISSN:
0960-1481
Subject:
Tetradesmus; air; ammonia; biogas; biomass production; bioremediation; carbon dioxide; cattle manure; hydrogen production; lipid content; microalgae; phosphorus; photobioreactors; pig manure; sewage; wastewater; wastewater treatment
Abstract:
... Microalgae were grown in 12-L airlift photobioreactors (PBR) containing biodigested swine manure (BSM), cattle manure (BCM) and domestic sewage (BDS), with 5% v/v, 25% v/v and 30% v/v respectively and compared with synthetic medium CHU. BSM with biogas/air mixture (10% CO₂) injection on the 8th day led to of 13,257 ± 430 × 10⁴ cell mL⁻¹, and 2.0 ± 0.16 g L⁻¹ dry biomass with a 26% lipid content, w ...
DOI:
10.1016/j.renene.2020.09.045

49. Nutrient starvation-induced oxidative stress-mediated lipid accumulation in Tetradesmus obliquus KMC24

Author:
Madonna Roy; Sounak Bera; Kaustubha Mohanty
Source:
Journal of applied phycology 2021 v.33 no.6 pp. 3617-3635
ISSN:
0921-8971
Subject:
Tetradesmus; algology; biodiesel; biomass production; biosynthesis; carbon sinks; fatty acid composition; fatty acids; fluorescence; iodine value; nitrogen; phosphorus; photosynthesis; reactive oxygen species; saponification number; starvation
Abstract:
... A two-stage cultivation approach was employed to investigate the effect of nitrogen and/or phosphorus starvation on the morphology, biomass yield, photosynthetic activity, biochemical, and fatty acid composition of Tetradesmus obliquus KMC24. A two-day nitrogen-starved cells (-N2) were able to accumulate the maximum amount of lipid (39.93 ± 0.44%) without affecting the biomass yield (2.15 ± 0.04 g ...
DOI:
10.1007/s10811-021-02614-w

50. Optimisation of carbohydrate, lipid and biomass productivity in Tetradesmus obliquus using response surface methodology

Author:
Syafiqah Md Nadzir; Norjan Yusof; Norazela Nordin; Hanisom Abdullah; Azlan Kamari
Source:
Biofuels 2021 v.12 no.7 pp. 807-816
ISSN:
1759-7277
Subject:
Tetradesmus; biofuels; biomass production; carbohydrates; computer software; fatty acid methyl esters; feedstocks; fuel production; light intensity; microalgae; nitrogen content; pH; polyunsaturated fatty acids; response surface methodology; temperature
Abstract:
... Microalgae are known as an alternative source of biomass energy to replace fossil fuels. The aim of the present study is to optimise the growth conditions and increase the lipid, carbohydrate and biomass productivity of Tetradesmus obliquus UPSI-JRM02 using response surface methodology with Design Expert software. Four variables (nitrogen concentration, temperature, pH, and light intensity) were o ...
DOI:
10.1080/17597269.2018.1542568