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Barari F, Eydi Gabrabad M, Bonyadi Z. Recent progress on the toxic effects of microplastics on Chlorella sp. in aquatic environments. Heliyon 2024; 10:e32881. [PMID: 38975222 PMCID: PMC11226894 DOI: 10.1016/j.heliyon.2024.e32881] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 06/08/2024] [Accepted: 06/11/2024] [Indexed: 07/09/2024] Open
Abstract
Microplastics (MPs) are emerging contaminants that have harmful effects on ecosystems. Microalgae are important primary producers in aquatic environments, providing nutrients for various organisms. These microorganisms may be affected by MPs. Therefore, it is important to investigate the toxicity aspects of different MPs on Chlorella species. It can be seen that the BG-11 culture medium was the most commonly used medium in 40 % of the studies for the growth of Chlorella sp. Chlorella sp. grows optimally at a temperature of 25 °C and a pH of 7. Most studies show that Chlorella sp. can grow in the range of 3000-6000 lux. Moreover, various techniques have been used to analyze the morphological properties of MPs in different studies. These techniques included scanning electron microscopy (SEM), Fourier transform infrared (FTIR), and transmission electron microscopy (TEM), which were used in 65 %, 35 %, and 27 % of the studies, respectively. 53 % of the research has focused on the toxic effects of PS on Chlorella sp. Findings show that 41 % of the studies investigated MPs concentrations in the range of 10-100 mg/L, followed by 32 % of the studies in the range of 100-1000 mg/L. The studies found that MPs were used in a spherical shape in 45 % of the cases. The enzymes most affected by MPs were superoxide dismutase (SOD) and Malondialdehyde (MDA), accounting for 48 % of the studies each. Additionally, exposure to MPs increased the activity of enzymes such as SOD and MDA. In general, it can be concluded that MPs had a relatively high negative effect on the growth of Chlorella sp.
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Affiliation(s)
- Fateme Barari
- Student Research Committee, Department of Environmental Health Engineering, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohaddeseh Eydi Gabrabad
- Student Research Committee, Department of Environmental Health Engineering, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ziaeddin Bonyadi
- Department of Environmental Health Engineering, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
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Montoya‐Arroyo A, Muñoz‐González A, Lehnert K, Frick K, Schmid‐Staiger U, Vetter W, Frank J. Monodopsis subterranea is a source of α-tocomonoenol, and its concentration, in contrast to α-tocopherol, is not affected by nitrogen depletion. Food Sci Nutr 2024; 12:1869-1879. [PMID: 38455160 PMCID: PMC10916641 DOI: 10.1002/fsn3.3880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 03/09/2024] Open
Abstract
α-Tomonoenols (αT1) are tocochromanols structurally related to tocopherols (T) and tocotrienols (T3), the bioactive members of the vitamin E family. However, limited evidence exists regarding the sources and biosynthesis of tocomonoenols. Nitrogen depletion increases the content of α-tocopherol (αT), the main vitamin E congener, in microalgae, but little is known regarding its effect on other tocochromanols, such as tocomonoenols and tocotrienols. We therefore quantified the concentrations of T, T1, and T3, in freeze-dried biomass from nitrogen-sufficient, and nitrogen-depleted Monodopsis subterranea (Eustigmatophyceae). The identities of isomers of αT1 were confirmed by LC-MS and GC-MS. αT was the predominant tocochromanol (82% of total tocochromanols). αT1 was present in higher quantities than the sum of all T3 (6% vs. 1% of total tocochromanols). 11'-αT1 was the main αT1 isomer. Nitrogen depletion increased αT, but not αT1 or T3 in M. subterranea. In conclusion, nitrogen depletion increased the content of αT, the biologically most active form of vitamin E, in M. subterranea without affecting αT1 and T3 and could potentially be used as a strategy to enhance its nutritional value but not to increase αT1 content, indicating that αT1 accumulation is independent of that of αT in microalgae.
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Affiliation(s)
| | - Alejandra Muñoz‐González
- Institute of Nutritional Sciences (140b)University of HohenheimStuttgartGermany
- School of Food TechnologyUniversity of Costa RicaSan PedroCosta Rica
| | - Katja Lehnert
- Institute of Food Chemistry (170b)University of HohenheimStuttgartGermany
| | - Konstantin Frick
- Institute of Interfacial Process Engineering and Plasma TechnologyUniversity of StuttgartStuttgartGermany
| | - Ulrike Schmid‐Staiger
- Innovation Field Functional IngredientsFraunhofer Institute for Interfacial Engineering and Biotechnology IGBStuttgartGermany
| | - Walter Vetter
- Institute of Food Chemistry (170b)University of HohenheimStuttgartGermany
| | - Jan Frank
- Institute of Nutritional Sciences (140b)University of HohenheimStuttgartGermany
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Frick K, Ebbing T, Yeh Y, Schmid‐Staiger U, Tovar GEM. Influence of light conditions on the production of chrysolaminarin using Phaeodactylum tricornutum in artificially illuminated photobioreactors. Microbiologyopen 2023; 12:e1378. [PMID: 37877659 PMCID: PMC10505944 DOI: 10.1002/mbo3.1378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/15/2023] [Accepted: 08/31/2023] [Indexed: 10/26/2023] Open
Abstract
The light conditions are of utmost importance in any microalgae production process especially involving artificial illumination. This also applies to a chrysolaminarin (soluble 1,3-β-glucan) production process using the diatom Phaeodactylum tricornutum. Here we examine the influence of the amount of light per gram biomass (specific light availability) and the influence of two different biomass densities (at the same amount of light per gram biomass) on the accumulation of the storage product chrysolaminarin during nitrogen depletion in artificially illuminated flat-panel airlift photobioreactors. Besides chrysolaminarin, other compounds (fucoxanthin, fatty acids used for energy storage [C16 fatty acids], and eicosapentaenoic acid) are regarded as well. Our results show that the time course of C-allocation between chrysolaminarin and fatty acids, serving as storage compounds, is influenced by specific light availability and cell concentration. Furthermore, our findings demonstrate that with increasing specific light availability, the maximal chrysolaminarin content increases. However, this effect is limited. Beyond a certain specific light availability (here: 5 µmolphotons gDW -1 s-1 ) the maximal chrysolaminarin content no longer increases, but the rate of increase becomes faster. Furthermore, the conversion of light to chrysolaminarin is best at the beginning of nitrogen depletion. Additionally, our results show that a high biomass concentration has a negative effect on the maximal chrysolaminarin content, most likely due to the occurring self-shading effects.
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Affiliation(s)
- Konstantin Frick
- Institute of Interfacial Process Engineering and Plasma Technology, Bioprocess EngineeringUniversity of StuttgartStuttgartGermany
- Industrial BiotechnologyFraunhofer Institute for Interfacial Engineering and Biotechnology IGBStuttgartGermany
| | - Tobias Ebbing
- Institute of Interfacial Process Engineering and Plasma Technology, Bioprocess EngineeringUniversity of StuttgartStuttgartGermany
- Industrial BiotechnologyFraunhofer Institute for Interfacial Engineering and Biotechnology IGBStuttgartGermany
| | - Yen‐Cheng Yeh
- Industrial BiotechnologyFraunhofer Institute for Interfacial Engineering and Biotechnology IGBStuttgartGermany
| | - Ulrike Schmid‐Staiger
- Industrial BiotechnologyFraunhofer Institute for Interfacial Engineering and Biotechnology IGBStuttgartGermany
| | - Günter E. M. Tovar
- Institute of Interfacial Process Engineering and Plasma Technology, Bioprocess EngineeringUniversity of StuttgartStuttgartGermany
- Industrial BiotechnologyFraunhofer Institute for Interfacial Engineering and Biotechnology IGBStuttgartGermany
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Tao Y, Liu Z, Zheng J, Zhou J, He D, Ma J. Microalgae production in human urine: Fundamentals, opportunities, and perspectives. Front Microbiol 2022; 13:1067782. [DOI: 10.3389/fmicb.2022.1067782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 11/01/2022] [Indexed: 11/21/2022] Open
Abstract
The biological treatment of source-separated human urine to produce biofuel, nutraceutical, and high-value chemicals is getting increasing attention. Especially, photoautotrophic microalgae can use human urine as media to achieve environmentally and economically viable large-scale cultivation. This review presents a comprehensive overview of the up-to-date advancements in microalgae cultivation employing urine in photobioreactors (PBRs). The standard matrices describing algal growth and nutrient removal/recovery have been summarized to provide a platform for fair comparison among different studies. Specific consideration has been given to the critical operating factors to understand how the PBRs should be maintained to achieve high efficiencies. Finally, we discuss the perspectives that emphasize the impacts of co-existing bacteria, contamination by human metabolites, and genetic engineering on the practical microalgal biomass production in urine.
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Booth M, Spicer A, Kiparissides A. Shedding light on phototrophic biomass production of Chlorella variabilis: The importance of dissolved CO2, light intensity and duty cycle. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2021.108315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Tocochromanol Profiles in Chlorella sorokiniana, Nannochloropsis limnetica and Tetraselmis suecica Confirm the Presence of 11′-α-Tocomonoenol in Cultured Microalgae Independently of Species and Origin. Foods 2022; 11:foods11030396. [PMID: 35159546 PMCID: PMC8834470 DOI: 10.3390/foods11030396] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 02/01/2023] Open
Abstract
11′-α-Tocomonoenol (11′-αT1) is structurally related to vitamin E and has been quantified in the microalgae Tetraselmis sp. and Nannochloropsis oceanica. However, it is not known whether 11′-αT1 is present in other microalgae independent of species and origin. The aim of this study was to analyze the tocochromanol profiles of Chlorella sorokiniana, Nannochloropsis limnetica, and Tetraselmis suecica and to determine if 11′-αT1 is present in these microalgae. Cultured microalgae were freeze-dried and the presence and identity of α-tocomonoenols were confirmed by LC-MSn (liquid chromatography coupled to mass spectroscopy) and GC-MS (gas chromatography coupled to mass spectroscopy). Tocochromanol profiles were determined by HPLC-FLD (liquid chromatography with fluorescence detection) and fatty acid profiles (as fatty acid methyl esters; FAME) by GC-MS. As confirmed by LC-MSn and GC-MS, 11′-αT1 was the dominant αT1 isomer in cultured microalgae instead of 12′-αT1, the isomer also known as marine-derived tocopherol. αT1 represented less than 1% of total tocochromanols in all analyzed samples and tended to be more abundant in microalgae with higher proportions of polyunsaturated fatty acids. In conclusion, our findings confirm that αT1 is not restricted to terrestrial photosynthetic organisms, but can also accumulate in microalgae of different species, with 11′-αT1—and not the marine-derived tocopherol (12′-αT1)—as the predominant αT1 isomer.
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Xi Y, Zhang J, Kong F, Che J, Chi Z. Kinetic modeling and process analysis for photo-production of β-carotene in Dunaliella salina. BIORESOUR BIOPROCESS 2022; 9:4. [PMID: 38647742 PMCID: PMC10991233 DOI: 10.1186/s40643-022-00495-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/08/2022] [Indexed: 12/31/2022] Open
Abstract
Dunaliella salina is a green microalga with the great potential to generate natural β-carotene. However, the corresponding mathematical models to guide optimized production of β-carotene in Dunaliella salina (D. salina) are not yet available. In this study, dynamic models were proposed to simulate effects of environmental factors on cell growth and β-carotene production in D. salina using online monitoring system. Moreover, the identification model of the parameter variables was established, and an adaptive particle swarm optimization algorithm based on parameter sensitivity analysis was constructed to solve the premature problem of particle swarm algorithm. The proposed kinetic model is characterized by high accuracy and predictability through experimental verification, which indicates its competence for future process design, control, and optimization. Based on the model established in this study, the optimal environmental factors for both β-carotene production and microalgae growth were identified. The approaches created are potentially useful for microalga Dunaliella salina cultivation and high-value β-carotene production.
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Affiliation(s)
- Yimei Xi
- Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education, China), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
| | - Jiali Zhang
- School of Mathematical Sciences, Dalian University of Technology, Dalian, 116024, China
| | - Fantao Kong
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China.
| | - Jian Che
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China.
- Dalian Xinyulong Marine Biological Seed Technology Co. Ltd, Dalian, 116200, China.
| | - Zhanyou Chi
- School of Bioengineering, Dalian University of Technology, Dalian, 116024, China
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Baidya A, Akter T, Islam MR, Shah AKMA, Hossain MA, Salam MA, Paul SI. Effect of different wavelengths of LED light on the growth, chlorophyll, β-carotene content and proximate composition of Chlorella ellipsoidea. Heliyon 2021; 7:e08525. [PMID: 34934841 DOI: 10.1016/j.heliyon.2021.e08525] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/30/2021] [Accepted: 11/29/2021] [Indexed: 11/17/2022] Open
Abstract
Chlorella ellipsoidea is a freshwater green microalga that has great prospect for the sustainable development of aquaculture industry. Microalgae require optimal lighting conditions for efficient photosynthesis. The key to cost-effective algal biomass production is to optimize algae growth conditions. This study aimed to investigate the effects of various wavelengths viz. white (380-750 nm), green (510 nm), blue (475 nm), and red (650 nm) light-emitting diodes (LEDs) on the growth, pigment content (chlorophyll-a, chlorophyll-b, and β-carotene), and proximate composition of C. ellipsoidea with a photoperiod of 12 h:12 h light: dark cycle under indoor environmental conditions. C. ellipsoidea was cultured in Bold's Basal Medium for 18 days. The cell density (125.36×105 cells ml-1), cell dry weight (58.9 ± 4.57 mg L-1), optical density (1.66 ± 0.08 g L-1), chlorophyll-a (7.31 ± 0.04 μg ml-1), chlorophyll-b (2.73 ± 0.13 μg ml-1), and β-carotene (0.39 ± 0.04 μg ml-1) content of C. ellipsoidea were significantly (P < 0.05) higher at 15th-day when cultured under blue LED light exposure. Significantly lower growth and nutritional values were obtained under red LED light exposure compared to the control and other LEDs spectra. In Pearson correlation analysis, the cell density and cell dry weight values showed a strong positive correlation with the values of pigment contents of C. ellipsoidea in all the treatments. The LEDs light spectra showed significant effects on proximate composition of C. ellipsoidea. Protein and lipid contents of C. ellipsoidea were significantly higher in blue LED growth conditions compared to white, green, and red LEDs. C. ellipsoidea cells were 3-7.04 μm in size and the maximum area of the cell was 38.94 μm2 in blue LED treatment. Results of this study demonstrated that blue LED light spectra was the most suitable condition to induce nutritionally rich biomass production of C. ellipsoidea, which can be used as a potential source of fish feed towards sustainable aquaculture.
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Affiliation(s)
- Arpan Baidya
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Taslima Akter
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Md Rabiul Islam
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - A K M Azad Shah
- Department of Fisheries Technology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Md Amzad Hossain
- Department of Aquaculture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Mohammad Abdus Salam
- Department of Genetics and Fish Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Sulav Indra Paul
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
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Sarkar S, Manna MS, Bhowmick TK, Gayen K. Effect of different illumination patterns on the growth and biomolecular synthesis of isolated Chlorella Thermophila in a 50 L pilot-scale photobioreactor. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.07.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Derwenskus F, Weickert S, Lewandowski I, Schmid-Staiger U, Hirth T. Economic evaluation of up- and downstream scenarios for the co-production of fucoxanthin and eicosapentaenoic acid with P. tricornutum using flat-panel airlift photobioreactors with artificial light. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102078] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Influence of light regime on the performance of an immobilised microalgae reactor for wastewater nutrient removal. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101648] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tuantet K, Temmink H, Zeeman G, Wijffels RH, Buisman CJ, Janssen M. Optimization of algae production on urine. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101667] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Holdmann C, Schmid-Staiger U, Hirth T. Outdoor microalgae cultivation at different biomass concentrations — Assessment of different daily and seasonal light scenarios by modeling. ALGAL RES 2019. [DOI: 10.1016/j.algal.2018.101405] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Deng X, Chen B, Xue C, Li D, Hu X, Gao K. Biomass production and biochemical profiles of a freshwater microalga Chlorella kessleri in mixotrophic culture: Effects of light intensity and photoperiodicity. BIORESOURCE TECHNOLOGY 2019; 273:358-367. [PMID: 30453250 DOI: 10.1016/j.biortech.2018.11.032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/05/2018] [Accepted: 11/08/2018] [Indexed: 05/09/2023]
Abstract
In this work, different light conditions (light intensity and photoperiodicity) were set up to investigate the impact of light on growth, chemical compositions and fatty acid profiles of Chlorella kessleri in mixotrophic cultures. Results indicated that C. kessleri could absorb and utilize glucose rapidly when light intensity was ≤ 90 µE m-2 s-1, and a maximum algal biomass of 1.17 g L-1 was obtained in the cultures with 2 g L-1 glucose at a light intensity and light/dark (L/D) cycle of 90 µE m-2 s-1 and 20L:4D, respectively. Additionally, this alga would accumulate a large amount of chlorophyll a (about 30 mg g-1) in the mixotrophic cultures under a low light intensity (≤90 µE m-2 s-1), and the algal chemical compositions changed with light intensity and photoperiodicity. Results of fatty acid profiles suggested that the algal biomass could be used as animal feeds or a good-quality biodiesel feedstock.
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Affiliation(s)
- Xiangyuan Deng
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, People's Republic of China.
| | - Biao Chen
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, People's Republic of China
| | - Chunye Xue
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, People's Republic of China
| | - Da Li
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, People's Republic of China
| | - Xiaoli Hu
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, People's Republic of China
| | - Kun Gao
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, College of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212003, People's Republic of China
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García-Cubero R, Moreno-Fernández J, Acién-Fernández F, García-González M. How to combine CO2 abatement and starch production in Chlorella vulgaris. ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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