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Sheikh T, Hamid B, Baba Z, Iqbal S, Yatoo A, Fatima S, Nabi A, Kanth R, Dar K, Hussain N, Alturki AI, Sunita K, Sayyed R. Extracellular polymeric substances in psychrophilic cyanobacteria: A potential bioflocculant and carbon sink to mitigate cold stress. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102375] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Ye S, Gao L, Zhao J, An M, Wu H, Li M. Simultaneous wastewater treatment and lipid production by Scenedesmus sp. HXY2. BIORESOURCE TECHNOLOGY 2020; 302:122903. [PMID: 32018084 DOI: 10.1016/j.biortech.2020.122903] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/23/2020] [Accepted: 01/24/2020] [Indexed: 06/10/2023]
Abstract
Screening for highly efficient microalgae is an important technique for improving treatment efficiency. In this study, eight species of microalgae (five Scenedesmus and three Desmodesmus) were isolated from water and soil in the Hexi Corridor region, China, and identified by 18S rRNA gene sequence analysis. Scenedesmus sp. HXY2 grew well under high total organic carbon and ammonia conditions and had the highest nutrient removal efficiency (>95%). On day 12, the biomass of Scenedesmus sp. HXY2 was 7.2 × 106 cells mL-1. The lipid content and productivity of this species were 15.56% and 5.67 mg L-1 day-1, respectively. The proportion of unsaturated fatty acids (60.07%) indicated that the lipids of Scenedesmus sp. HXY2 were suitable for biodiesel production. Scenedesmus sp. HXY2 showed great potential for growth in wastewater with high ammonia and organic contents to simultaneously purify wastewater and produce lipids.
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Affiliation(s)
- Sisi Ye
- College of Resources and Environment, Northwest A & F University, Yangling 712100, PR China
| | - Li Gao
- SouthEast Water, 101 Wells Street, Frankston, VIC 3199, Australia
| | - Jing Zhao
- College of Resources and Environment, Northwest A & F University, Yangling 712100, PR China
| | - Mei An
- College of Resources and Environment, Northwest A & F University, Yangling 712100, PR China
| | - Haiming Wu
- College of Resources and Environment, Northwest A & F University, Yangling 712100, PR China
| | - Ming Li
- College of Resources and Environment, Northwest A & F University, Yangling 712100, PR China; Scientific Laboratory of Heyang Agricultural Environment and Farmland Cultivation, Ministry of Agriculture and Rural Affairs, Heyang 715300, PR China.
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Martins TP, Ramos V, Hentschke GS, Castelo-Branco R, Rego A, Monteiro M, Brito Â, Tamagnini P, Cary SC, Vasconcelos V, Krienitz L, Magalhães C, Leão PN. The Extremophile Endolithella mcmurdoensis gen. et sp. nov. (Trebouxiophyceae, Chlorellaceae), A New Chlorella-like Endolithic Alga From Antarctica. JOURNAL OF PHYCOLOGY 2020; 56:208-216. [PMID: 31643075 DOI: 10.1111/jpy.12940] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 09/20/2019] [Indexed: 06/10/2023]
Abstract
The McMurdo Dry Valleys constitute the largest ice-free region of Antarctica and one of the most extreme deserts on Earth. Despite the low temperatures, dry and poor soils and katabatic winds, some microbes are able to take advantage of endolithic microenvironments, inhabiting the pore spaces of soil and constituting photosynthesis-based communities. We isolated a green microalga, Endolithella mcmurdoensis gen. et sp. nov, from an endolithic sandstone sample collected in the McMurdo Dry Valleys (Victoria Land, East Antarctica) during the K020 expedition, in January 2013. The single non-axenic isolate (E. mcmurdoensis LEGE Z-009) exhibits cup-shaped chloroplasts, electron-dense bodies, and polyphosphate granules but our analysis did not reveal any diagnostic morphological characters. On the basis of phylogenetic analysis of the 18S rRNA (SSU) gene, the isolate was found to represent a new genus within the family Chlorellaceae.
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Affiliation(s)
- Teresa P Martins
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Vitor Ramos
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Guilherme S Hentschke
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Raquel Castelo-Branco
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Adriana Rego
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Maria Monteiro
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
- School of Science, University of Waikato, Hamilton, New Zealand
| | - Ângela Brito
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal
| | - Paula Tamagnini
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal
- Instituto de Biologia Molecular e Celular, Universidade do Porto, Rua Alfredo Allen 208, 4200-135, Porto, Portugal
- Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - S Craig Cary
- School of Science, University of Waikato, Hamilton, New Zealand
- International Centre for Terrestrial Antarctic Research, University of Waikato, Hamilton, New Zealand
| | - Vitor Vasconcelos
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
- Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Lothar Krienitz
- Department of Experimental Limnology, Leibniz-Institute of Freshwater Ecology and Inland Fisheries, D-16775, Stechlin, Germany
| | - Catarina Magalhães
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
- Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Pedro N Leão
- Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
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Oleaginous Microalgae from Dairy Farm Wastewater for Biodiesel Production: Isolation, Characterization and Mass Cultivation. Appl Biochem Biotechnol 2017; 184:524-537. [DOI: 10.1007/s12010-017-2564-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 07/20/2017] [Indexed: 11/25/2022]
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Yee W. Microalgae from the Selenastraceae as emerging candidates for biodiesel production: a mini review. World J Microbiol Biotechnol 2016; 32:64. [PMID: 26931604 DOI: 10.1007/s11274-016-2023-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Accepted: 02/01/2016] [Indexed: 11/30/2022]
Abstract
Over the years, microalgae have been identified to be a potential source of commercially important products such as pigments, polysaccharides, polyunsaturated fatty acids and in particular, biofuels. Current demands for sustainable fuel sources and bioproducts has led to an extensive search for promising strains of microalgae for large scale cultivation. Prospective strains identified for these purposes were among others, mainly from the genera Hematococcus, Dunaliella, Botryococcus, Chlorella, Scenedesmus and Nannochloropsis. Recently, microalgae from the Selenastraceae emerged as potential candidates for biodiesel production. Strains from the Selenastraceae such as Monoraphidium sp. FXY-10, M. contortum SAG 47.80, Ankistrodesmus sp. SP2-15 and M. minutum were high biomass and lipid producers when cultivated under optimal conditions. A number of Selenastraceae strains were also reported to be suitable for cultivation in wastewater. This review highlights recent reports on potential strains from the Selenastraceae for biodiesel production and contrasts their biomass productivity, lipid productivity as well as fatty acid profile. Cultivation strategies employed to enhance their biomass and lipid productivity as well as to reduce feedstock cost are also discussed in this paper.
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Affiliation(s)
- Willy Yee
- Department of Applied Sciences, Faculty of Science and Technology, Nilai University, No. 1, Persiaran Universiti, 71800, Nilai, Negeri Sembilan, Malaysia.
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Cabanelas ITD, Zwart MVD, Kleinegris DMM, Barbosa MJ, Wijffels RH. Rapid method to screen and sort lipid accumulating microalgae. BIORESOURCE TECHNOLOGY 2015; 184:47-52. [PMID: 25453436 DOI: 10.1016/j.biortech.2014.10.057] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 10/09/2014] [Accepted: 10/10/2014] [Indexed: 05/21/2023]
Abstract
The present work established an efficient staining method for fluorescence activated cell sorting (FACS) with Chlorococcum littorale maintaining cellular viability. The method was designed to detect high-lipid cells and to guarantee cellular viability. BODIPY505/515 (BP) was more suitable to FACS when compared to Nile red. The optimum concentrations were 0.4 μg ml(-1) of BP, 0.1% DMSO or 0.35% ethanol. Both ethanol and DMSO were equally efficient and assured cellular viability after the staining and sorting. Here a method is presented to rapidly screen and sort lipid rich cells of C. littorale with FACS, which can be used to produce new inoculum with increased cellular lipid content.
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Affiliation(s)
- Iago Teles Dominguez Cabanelas
- Wageningen University, Bioprocess Engineering, AlgaePARC, P.O. Box 8128, 6700 EV Wageningen, Netherlands; Wageningen University and Research Center, Food and Biobased Research, AlgaePARC, Bornsesteeg 10, Building 112, 6721NG Bennekom, Netherlands.
| | - Mathijs van der Zwart
- Wageningen University, Bioprocess Engineering, AlgaePARC, P.O. Box 8128, 6700 EV Wageningen, Netherlands
| | - Dorinde M M Kleinegris
- Wageningen University and Research Center, Food and Biobased Research, AlgaePARC, Bornsesteeg 10, Building 112, 6721NG Bennekom, Netherlands
| | - Maria J Barbosa
- Wageningen University and Research Center, Food and Biobased Research, AlgaePARC, Bornsesteeg 10, Building 112, 6721NG Bennekom, Netherlands
| | - René H Wijffels
- Wageningen University, Bioprocess Engineering, AlgaePARC, P.O. Box 8128, 6700 EV Wageningen, Netherlands
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Álvarez-Díaz PD, Ruiz J, Arbib Z, Barragán J, Garrido-Pérez MC, Perales JA. Wastewater treatment and biodiesel production by Scenedesmus obliquus in a two-stage cultivation process. BIORESOURCE TECHNOLOGY 2015; 181:90-96. [PMID: 25643954 DOI: 10.1016/j.biortech.2015.01.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 01/05/2015] [Accepted: 01/06/2015] [Indexed: 06/04/2023]
Abstract
The microalga Scenedesmus obliquus was cultured in two cultivation stages: (1) in batch with real wastewater; (2) maintaining the stationary phase with different conditions of CO2, light and salinity according to a factorial design in order to improve the lipid content. The presence of the three factors increased lipid content from 35.8% to 49% at the end of the second stage; CO2 presence presented the highest direct effect increasing lipid content followed by light presence and salt presence. The ω-3 fatty acids content increased with CO2 and light presence acting in isolation, nevertheless, when both factors acted together the interaction effect was negative. The ω-3 eicosapentaenoic acid content of the oil from S. obliquus slightly exceeded the 1% maximum to be used as biodiesel source (EU normative). Therefore, it is suggested the blend with other oils or the selective extraction of the ω-3 fatty acids from S. obliquus oil.
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Affiliation(s)
- P D Álvarez-Díaz
- Department of Environmental Technologies, Andalusian Center of Science and Marine Technology (CACYTMAR), International Campus of Excellence of the Sea (CEIMAR), Universidad de Cádiz, Campus of Puerto Real, 11510 Puerto Real, Cádiz, Spain.
| | - J Ruiz
- Department of Environmental Technologies, Andalusian Center of Science and Marine Technology (CACYTMAR), International Campus of Excellence of the Sea (CEIMAR), Universidad de Cádiz, Campus of Puerto Real, 11510 Puerto Real, Cádiz, Spain
| | - Z Arbib
- Department of Environmental Technologies, Andalusian Center of Science and Marine Technology (CACYTMAR), International Campus of Excellence of the Sea (CEIMAR), Universidad de Cádiz, Campus of Puerto Real, 11510 Puerto Real, Cádiz, Spain; FCC Aqualia, Avenida Camino de Santiago 40, 28050 Madrid, Spain
| | - J Barragán
- Department of Environmental Technologies, Andalusian Center of Science and Marine Technology (CACYTMAR), International Campus of Excellence of the Sea (CEIMAR), Universidad de Cádiz, Campus of Puerto Real, 11510 Puerto Real, Cádiz, Spain; Chiclana Natural S.A.M., Pza. de España S.N., 11130 Chiclana, Cádiz, Spain
| | - M C Garrido-Pérez
- Department of Environmental Technologies, Andalusian Center of Science and Marine Technology (CACYTMAR), International Campus of Excellence of the Sea (CEIMAR), Universidad de Cádiz, Campus of Puerto Real, 11510 Puerto Real, Cádiz, Spain
| | - J A Perales
- Department of Environmental Technologies, Andalusian Center of Science and Marine Technology (CACYTMAR), International Campus of Excellence of the Sea (CEIMAR), Universidad de Cádiz, Campus of Puerto Real, 11510 Puerto Real, Cádiz, Spain
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Rumin J, Bonnefond H, Saint-Jean B, Rouxel C, Sciandra A, Bernard O, Cadoret JP, Bougaran G. The use of fluorescent Nile red and BODIPY for lipid measurement in microalgae. BIOTECHNOLOGY FOR BIOFUELS 2015; 8:42. [PMID: 25788982 PMCID: PMC4364489 DOI: 10.1186/s13068-015-0220-4] [Citation(s) in RCA: 225] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 02/04/2015] [Indexed: 05/02/2023]
Abstract
Microalgae are currently emerging as one of the most promising alternative sources for the next generation of food, feed, cosmetics and renewable energy in the form of biofuel. Microalgae constitute a diverse group of microorganisms with advantages like fast and efficient growth. In addition, they do not compete for arable land and offer very high lipid yield potential. Major challenges for the development of this resource are to select lipid-rich strains using high-throughput staining for neutral lipid content in microalgae species. For this purpose, the fluorescent dyes most commonly used to quantify lipids are Nile red and BODIPY 505/515. Their fluorescent staining for lipids offers a rapid and inexpensive analysis tool to measure neutral lipid content, avoiding time-consuming and costly gravimetric analysis. This review collates and presents recent advances in algal lipid staining and focuses on Nile red and BODIPY 505/515 staining characteristics. The available literature addresses the limitations of fluorescent dyes under certain conditions, such as spectral properties, dye concentrations, cell concentrations, temperature and incubation duration. Moreover, the overall conclusion of the present review study gives limitations on the use of fluorochrome for screening of lipid-rich microalgae species and suggests improved protocols for staining recalcitrant microalgae and recommendations for the staining quantification.
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Two Stages of N-Deficient Cultivation Enhance the Lipid Content of Microalga Scenedesmus sp. J AM OIL CHEM SOC 2015. [DOI: 10.1007/s11746-015-2613-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zhu B, Sun F, Yang M, Lu L, Yang G, Pan K. Large-scale biodiesel production using flue gas from coal-fired power plants with Nannochloropsis microalgal biomass in open raceway ponds. BIORESOURCE TECHNOLOGY 2014; 174:53-9. [PMID: 25463781 DOI: 10.1016/j.biortech.2014.09.116] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/22/2014] [Accepted: 09/23/2014] [Indexed: 05/09/2023]
Abstract
The potential use of microalgal biomass as a biofuel source has raised broad interest. Highly effective and economically feasible biomass generating techniques are essential to realize such potential. Flue gas from coal-fired power plants may serve as an inexpensive carbon source for microalgal culture, and it may also facilitate improvement of the environment once the gas is fixed in biomass. In this study, three strains of the genus Nannochloropsis (4-38, KA2 and 75B1) survived this type of culture and bloomed using flue gas from coal-fired power plants in 8000-L open raceway ponds. Lower temperatures and solar irradiation reduced the biomass yield and lipid productivities of these strains. Strain 4-38 performed better than the other two as it contained higher amounts of triacylglycerols and fatty acids, which are used for biodiesel production. Further optimization of the application of flue gas to microalgal culture should be undertaken.
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Affiliation(s)
- Baohua Zhu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Faqiang Sun
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Miao Yang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Lin Lu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China
| | - Guanpin Yang
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Kehou Pan
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266003, China.
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Development of genetic transformation methodologies for an industrially-promising microalga: Scenedesmus almeriensis. Biotechnol Lett 2014; 36:2551-8. [PMID: 25214215 DOI: 10.1007/s10529-014-1641-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 08/11/2014] [Indexed: 10/24/2022]
Abstract
The development of the microalgal industry requires advances in every aspect of microalgal biotechnology. In this regard, the availability of genetic engineering tools for industrially-promising species is key. As Scenedesmus almeriensis has promise for industrial use, we describe here an Agrobacterium-based methodology that allows stable genetic transformation of it for the first time, thus opening the way to its genetic manipulation. Transformation was accomplished using two different antibiotic resistance genes [hygromicine phophotransferase (hpt) and Shble] and it is credited by PCR amplification of both hpt/Shble and GUS genes and by the β-glucuronidase activity of transformed cells. Nevertheless, the single 35S promoter seems unable to direct gene expression to a convenient level in S. almeriensis as suggested by the low GUS enzymatic activity. Temperature was critical for the transformation efficiency.
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Yang F, Long L, Sun X, Wu H, Li T, Xiang W. Optimization of medium using response surface methodology for lipid production by Scenedesmus sp. Mar Drugs 2014; 12:1245-57. [PMID: 24663113 PMCID: PMC3967207 DOI: 10.3390/md12031245] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 01/26/2014] [Accepted: 01/27/2014] [Indexed: 11/21/2022] Open
Abstract
Lipid production is an important indicator for assessing microalgal species for biodiesel production. In this work, the effects of medium composition on lipid production by Scenedesmus sp. were investigated using the response surface methodology. The results of a Plackett–Burman design experiment revealed that NaHCO3, NaH2PO4·2H2O and NaNO3 were three factors significantly influencing lipid production, which were further optimized by a Box–Behnken design. The optimal medium was found to contain 3.07 g L−1 NaHCO3, 15.49 mg L−1 NaH2PO4·2H2O and 803.21 mg L−1 NaNO3. Using the optimal conditions previously determined, the lipid production (304.02 mg·L−1) increased 54.64% more than that using the initial medium, which agreed well with the predicted value 309.50 mg L−1. Additionally, lipid analysis found that palmitic acid (C16:0) and oleic acid (C18:1) dominantly constituted the algal fatty acids (about 60% of the total fatty acids) and a much higher content of neutral lipid accounted for 82.32% of total lipids, which strongly proved that Scenedesmus sp. is a very promising feedstock for biodiesel production.
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Affiliation(s)
- Fangfang Yang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Lijuan Long
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Xiumei Sun
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Hualian Wu
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Tao Li
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
| | - Wenzhou Xiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.
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