1
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Park YH, Park J, Choi JS, Kim HS, Choi JS, Choi YE. Ultrasonic Treatment Enhanced Astaxanthin Production of Haematococcus pluvialis. J Microbiol 2023:10.1007/s12275-023-00053-5. [PMID: 37310559 DOI: 10.1007/s12275-023-00053-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 04/17/2023] [Accepted: 04/27/2023] [Indexed: 06/14/2023]
Abstract
In this study, effects of ultrasonic treatment on Haematococcus pluvialis (H. pluvialis) were investigated. It has been confirmed that the ultrasonic stimulation acted as stress resources in the red cyst stage H. pluvialis cells containing astaxanthin, resulting in additional astaxanthin production. With the increase in production of astaxanthin, the average diameter of H. pluvialis cells increased accordingly. In addition, to determine how ultrasonic stimulation had an effect on the further biosynthesis of astaxanthin, genes related to astaxanthin synthesis and cellular ROS level were measured. As a result, it was confirmed that astaxanthin biosynthesis related genes and cellular ROS levels were increased, and thus ultrasonic stimulation acts as an oxidative stimulus. These results support the notion on the effect of the ultrasonic treatment, and we believe our novel approach based on the ultrasonic treatment would help to enhance the astaxanthin production from H. pluvialis.
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Affiliation(s)
- Yun Hwan Park
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Jaewon Park
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
- OJeong Resilience Institute, Korea University, Seoul, 02841, Republic of Korea
| | - Jeong Sik Choi
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Hyun Soo Kim
- Department of Electronic Engineering, Kwangwoon University, Seoul, 01897, Republic of Korea
| | - Jong Soon Choi
- Division of Analytical Science, Korea Basic Science Institute, Daejeon, 34133, Republic of Korea.
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon, 34134, Republic of Korea.
| | - Yoon-E Choi
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea.
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2
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Pereira RN, Jaeschke DP, Marczak LDF, Rech R, Mercali GD. Effect of ultrasound on Pseudoneochloris marina and Chlorella zofingiensis growth. BIORESOURCE TECHNOLOGY 2023; 373:128741. [PMID: 36791976 DOI: 10.1016/j.biortech.2023.128741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
The present work evaluated the ultrasound (US) effects on the growth of Pseudoneochloris marina and Chlorella zofingiensis. For P. marina, US treatment did not increase cell proliferation and reduced cell density when used for 60 min (exponential phase, for 5 days), indicating a possible occurrence of cell damage. For C. zofingiensis, the application of discontinuous US for 10 min resulted in an increase of 65 % in biomass concentration compared to the control. These distinct behaviors indicate that microalgae species react differently to physical stimuli. After US treatment, a reduction of carotenoid, chlorophyll, lipid and protein concentrations was observed, which may be related to changes in the metabolic pathways to produce these compounds. Overall, the results of the present study show the potential of discontinuous US to enhance microalgae cell proliferation.
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Affiliation(s)
- Renata Nunes Pereira
- Department of Chemical Engineering, Federal University of Rio Grande do Sul (UFRGS), Engenheiro Luiz Englert Street, Porto Alegre, RS 90040-040, Brazil
| | - Débora Pez Jaeschke
- College of Chemistry and Food, Federal University of Rio Grande, Rio Grande, RS 96203-900, Brazil
| | - Ligia Damasceno Ferreira Marczak
- Department of Chemical Engineering, Federal University of Rio Grande do Sul (UFRGS), Engenheiro Luiz Englert Street, Porto Alegre, RS 90040-040, Brazil
| | - Rosane Rech
- Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, 9500, Porto Alegre, RS 91501-970, Brazil
| | - Giovana Domeneghini Mercali
- Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, 9500, Porto Alegre, RS 91501-970, Brazil.
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3
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The Influence of Ultrasound on the Growth of Nannochloris sp. in Modified Growth Medium. Life (Basel) 2023; 13:life13020413. [PMID: 36836770 PMCID: PMC9967578 DOI: 10.3390/life13020413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/18/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
The influence of ultrasound irradiation on the algal biomass productivity as well as its oil content and fatty acids profile, grown in a modified Zarrouk medium, i.e., deproteinized whey waste solution, was investigated. The algal samples (Nannochloris sp. 424-1 microalgae) were grown for 7 days in a thermostated incubator at 28 °C, shaken under continuous light. During this period, the algal biomass was subjected to induced stress by ultrasonic irradiation at different powers and sonication time. The obtained results demonstrate that ultrasound stressing of algae biomass has a positive effect on both the quantity of biomass and the oil obtained, also causing a shift in fatty acid composition by increasing the proportion of C16 and C18 polyunsaturated fatty acids. A low dosage level of exposure to the ultrasound led to algal biomass increase as well as lipid accumulation. For both types of irradiation modes which were investigated, daily and only initial irradiation, the beneficial effect of the ultrasound decreases as the exposure time increases and the excessive sonication becomes detrimental to microalgae growth.
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4
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Yang Y, Ge S, Pan Y, Qian W, Wang S, Zhang J, Zhuang LL. Screening of microalgae species and evaluation of algal-lipid stimulation strategies for biodiesel production. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159281. [PMID: 36216060 DOI: 10.1016/j.scitotenv.2022.159281] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/20/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
Microalgae is considered an alternative source for biodiesel production producing renewable, sustainable and carbon-neutral energy. Microalgae property changes among species, which determines the efficiency of biodiesel production. Besides the lipid content evaluation, multi-principles (including high lipid productivity, high biomass yield, pollution resistance and desired fatty acid, etc.) for superior oil-producing species screening was proposed in this review and three microalgae species (Chlorella vulgaris, Scenedesmus obliquus and Mychonastes afer) with high bio-lipid producing prospect were screened out based on big data digging and analysis. The multilateral strategies for algal-lipid stimulating were also compared, among which, nutrient restriction, temperature control, heterotrophy and chemicals addition showed high potential in enhancing lipid accumulation; while electromagnetic field showed little effect. Interestingly, it was found that the lipid accumulation was more sensitive to nitrogen (N)-limitation other than phosphorus (P). Nutrient restriction, salinity stress etc. enhanced lipid accumulation by creating a stressed environment. Hence, optimum conditions (e.g. N:15-35 mg/L and P:4-16 mg/L) should be set to balance the lipid accumulation and biomass growth, and further guarantee the algal-lipid productivity. Otherwise, two-step cultivation could be applied during all the stressed stimulation. Different from lab study, effectiveness, operability and economy should be all considered for stimulation strategy selection. Nutrient restriction, temperature control and heterotrophy were highly feasible after the multidimensional evaluation.
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Affiliation(s)
- Yanan Yang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse and Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science & Engineering, Shandong University, Qingdao 266237, China
| | - Shuhan Ge
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse and Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science & Engineering, Shandong University, Qingdao 266237, China
| | - Yitong Pan
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse and Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science & Engineering, Shandong University, Qingdao 266237, China
| | - Weiyi Qian
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse and Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science & Engineering, Shandong University, Qingdao 266237, China
| | - Shengnan Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse and Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science & Engineering, Shandong University, Qingdao 266237, China
| | - Jian Zhang
- College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China; Shandong Key Laboratory of Water Pollution Control and Resource Reuse and Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science & Engineering, Shandong University, Qingdao 266237, China
| | - Lin-Lan Zhuang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse and Shandong Key Laboratory of Environmental Processes and Health, School of Environmental Science & Engineering, Shandong University, Qingdao 266237, China.
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5
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Impact of ultrasound and electric fields on microalgae growth: a comprehensive review. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1007/s43153-022-00281-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Han SI, Jeon MS, Ahn JW, Choi YE. Establishment of ultrasonic stimulation to enhance growth of Haematococcus lacustris. BIORESOURCE TECHNOLOGY 2022; 360:127525. [PMID: 35760247 DOI: 10.1016/j.biortech.2022.127525] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 06/15/2023]
Abstract
In this study, ultrasonication at a frequency of 40 kHz was used to shorten the sonication period and enhance the growth of Haematococcus lacustris. To confirm the optimal conditions, the effects of ultrasound output and treatment interval were examined. Under optimal conditions (20 W and 15-day cycle), the maximum cell density and chlorophyll content were 66.75 × 104 cells mL-1 and 36.54 mg g-1, respectively, which were increased by 50.00% and 39.01%, respectively, compared to the control. Transmission electron microscopy analysis showed that ultrasonication caused tiny cracks in the W4 and W6 strata but did not disrupt the inner W2 layer. Additionally, RT-qPCR analysis showed that ultrasonication upregulated both cell division and nitrogen uptake. No difference were detected in the composition or quantity of fatty acids. This study demonstrates a novel ultrasonic approach for enhancing the growth of H. lacustris.
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Affiliation(s)
- Sang-Il Han
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea
| | - Min Seo Jeon
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Joon-Woo Ahn
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongeup 56212, Republic of Korea
| | - Yoon-E Choi
- Division of Environmental Science & Ecological Engineering, Korea University, Seoul 02841, Republic of Korea.
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7
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Wei Q, Yao J, Chen R, Yang S, Tang Y, Ma X. Low-frequency ultrasound and nitrogen limitation induced enhancement in biomass production and lipid accumulation of Tetradesmus obliquus FACHB-12. BIORESOURCE TECHNOLOGY 2022; 358:127387. [PMID: 35636673 DOI: 10.1016/j.biortech.2022.127387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
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%, respectively, comparing to the control, and the lipid productivity reached 86.97 mg-1·L-1·d-1 at the end of the cultivation period. The protein and photosynthetic pigment contents of microalgae decreased by 22.4% and 14.0% under dual stress comparing to the control environment. In addition, dual stress cultivation of microalgae presented higher level of antioxidant capacity to balance to oxidation level in microalgal cells. This study provides a new insight for microalgae growth and lipid accumulation with dual stress stimulation.
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Affiliation(s)
- Qun Wei
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi 530004, PR China
| | - Jinjie Yao
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi 530004, PR China
| | - Ruge Chen
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi 530004, PR China
| | - Shangru Yang
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi 530004, PR China
| | - Yonghe Tang
- Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China; MOE Key Laboratory of New Processing Technology for Nonferrous Metals and Materials, Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, Guangxi University, Nanning 530004, PR China
| | - Xiangmeng Ma
- School of Resources, Environment and Materials, Guangxi University, Nanning, Guangxi 530004, PR China; Guangxi Key Laboratory of Electrochemical Energy Materials, Institute of Optical Materials and Chemical Biology, School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China.
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8
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Chen J, Zhai W, Li Y, Guo Y, Zhu Y, Lei G, Li J. Enhancing the biomass and riboflavin production of Ashbya gossypii by using low-intensity ultrasound stimulation: A mechanistic investigation. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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Magoni C, Bertacchi S, Giustra CM, Guzzetti L, Cozza R, Ferrari M, Torelli A, Marieschi M, Porro D, Branduardi P, Labra M. Could microalgae be a strategic choice for responding to the demand for omega-3 fatty acids? A European perspective. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.01.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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10
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Palacios OA, López BR, de-Bashan LE. Microalga Growth-Promoting Bacteria (MGPB): A formal term proposed for beneficial bacteria involved in microalgal–bacterial interactions. ALGAL RES 2022. [DOI: 10.1016/j.algal.2021.102585] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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11
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Yamada R, Ando Y, Mitsui R, Mizobata A, Yoshihara S, Tokumoto H, Matsumoto T, Ogino H. Improving carotenoid production in recombinant yeast, Saccharomyces cerevisiae, using ultrasound-irradiated two-phase extractive fermentation. Eng Life Sci 2022; 22:4-12. [PMID: 35024023 PMCID: PMC8727735 DOI: 10.1002/elsc.202100051] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 08/11/2021] [Accepted: 10/10/2021] [Indexed: 12/28/2022] Open
Abstract
Carotenoids are hydrophobic compounds that exhibit excellent bioactivity and can be produced by recombinant S. cerevisiae. Irradiating microorganisms with ultrasonic waves increase the productivity of various useful chemicals. Ultrasonic waves are also used to extract useful chemicals that accumulate in microbial cells. In this study, we aimed to improve the carotenoid production efficiency of a recombinant S. cerevisiae using an ultrasonic-irradiation based two-phase extractive fermentation process. When isopropyl myristate was used as the extraction solvent, a total of 264 mg/L of carotenoid was produced when batches were subjected to ultrasonic-irradiation at 10 W, which was a 1.3-fold increase when compared to the control. Transcriptome analysis suggested that one of the reasons for this improvement was an increase in the number of living cells. In fact, after 96 h of fermentation, the number of living cells increased by 1.4-fold upon irradiation with ultrasonic waves. Consequently, we succeeded in improving the carotenoid production in a recombinant S. cerevisiae strain using a ultrasonic-irradiated two-phase extractive fermentation and isopropyl myristate as the solvent. This fermentation strategy has the potential to be widely applied during the production of hydrophobic chemicals in recombinant yeast, and future research is expected to further develop this process.
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Affiliation(s)
- Ryosuke Yamada
- Department of Chemical EngineeringOsaka Prefecture UniversitySakaiOsakaJapan
| | - Yorichika Ando
- Department of Chemical EngineeringOsaka Prefecture UniversitySakaiOsakaJapan
| | - Ryosuke Mitsui
- Department of Chemical EngineeringOsaka Prefecture UniversitySakaiOsakaJapan
| | - Asuka Mizobata
- Department of Chemical EngineeringOsaka Prefecture UniversitySakaiOsakaJapan
| | - Shizue Yoshihara
- Department of Biological ScienceOsaka Prefecture UniversitySakaiOsakaJapan
| | - Hayato Tokumoto
- Department of Biological ScienceOsaka Prefecture UniversitySakaiOsakaJapan
| | - Takuya Matsumoto
- Department of Chemical EngineeringOsaka Prefecture UniversitySakaiOsakaJapan
| | - Hiroyasu Ogino
- Department of Chemical EngineeringOsaka Prefecture UniversitySakaiOsakaJapan
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12
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Zhang Y, Chen Z, Sun P, Xu Q, Chen N. Effect of low-level ultrasound treatment on the production of L-leucine by Corynebacterium glutamicum in fed-batch culture. Bioengineered 2021; 12:1078-1090. [PMID: 33775210 PMCID: PMC8806274 DOI: 10.1080/21655979.2021.1906028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/09/2021] [Accepted: 03/09/2021] [Indexed: 11/29/2022] Open
Abstract
Various process intensification methods were proposed to improve the yield, quality, and safety of fermented products. Here, we report the enhancement of L-leucine production by Corynebacterium glutamicum CP using ultrasound-assisted fed-batch fermentation. Response surface methodology was employed to optimize the sonication conditions. At an ultrasonic power density of 94 W/L, frequency of 25 kHz, interval of 31 min, and duration of 37 s, C. glutamicum CP produced 52.89 g/L of L-leucine in 44 h, representing a 21.6% increase compared with the control. The production performance of L-leucine was also improved under ultrasonic treatment. Moreover, the effects of ultrasound treatment on the fermentation performance of L-leucine were studied in terms of cell morphology, cell membrane permeability, and enzyme activity. The results indicate that ultrasonication is an efficient method for the intensification of L-leucine production by C. glutamicum CP.
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Affiliation(s)
- Yufu Zhang
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science & Technology, Tianjin, PR China
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, PR China
| | - Zhichao Chen
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science & Technology, Tianjin, PR China
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, PR China
| | - Pengjie Sun
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science & Technology, Tianjin, PR China
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, PR China
| | - Qingyang Xu
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science & Technology, Tianjin, PR China
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, PR China
| | - Ning Chen
- National and Local United Engineering Lab of Metabolic Control Fermentation Technology, Tianjin University of Science & Technology, Tianjin, PR China
- College of Biotechnology, Tianjin University of Science & Technology, Tianjin, PR China
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13
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Gao Y, Guo L, Liao Q, Zhang Z, Zhao Y, Gao M, Jin C, She Z, Wang G. Mariculture wastewater treatment with Bacterial-Algal Coupling System (BACS): Effect of light intensity on microalgal biomass production and nutrient removal. ENVIRONMENTAL RESEARCH 2021; 201:111578. [PMID: 34228951 DOI: 10.1016/j.envres.2021.111578] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/03/2021] [Accepted: 06/20/2021] [Indexed: 06/13/2023]
Abstract
Mariculture wastewater generated from the mariculture industry has increased public concern due to its impact on the sustainability of aquatic environments and aquaculture practices. Herein, the Bacterial-Algal Coupling System was applied for mariculture wastewater treatment. Microalgae growth in heterotrophy and mixotrophy (2000-8000 lux) was first compared. The best microalgal growth and nutrient removal were obtained at 5000 lux, where biomass productivity of microalgae was 0.465 g L-1 d-1, and 98.1% of chemical oxygen demand, 70.7% of ammonia-nitrogen, and 90.0% of total phosphorus were removed. To further understand the nutrient removal through microalgae cultivation, the enzyme activities involved in the Calvin cycle and the Tricarboxylic Acid cycle at different light intensities were determined. Under mixotrophic cultivation, there was a coordination between photosynthesis and heterotrophic metabolism in the agal cell, which resulted in a high algal biomass production and removal efficiency of nutrients. This study provided a novel insight into the bioremediation of mariculture wastewater and microalgae cultivation.
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Affiliation(s)
- Yedong Gao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Liang Guo
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Laboratory of Marine Environmental and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Qianru Liao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Zengshuai Zhang
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Yangguo Zhao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Mengchun Gao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Chunji Jin
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Zonglian She
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Guangce Wang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
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14
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Sustainable production of food grade omega-3 oil using aquatic protists: Reliability and future horizons. N Biotechnol 2021; 62:32-39. [PMID: 33486117 DOI: 10.1016/j.nbt.2021.01.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 01/15/2021] [Accepted: 01/16/2021] [Indexed: 02/07/2023]
Abstract
Biotechnological production of omega-3 polyunsaturated fatty acids (PUFAs) has become a commercial alternative to fish oil in the past twenty years. Compared to PUFA production by fatty fishes, that from microorganisms has increased due to its promising sustainability and high product safety and to increasing awareness in the expanding vegan market. Although autotrophic production by microalgae seems to be more sustainable in the long term, to date most of the microbial production of omega-3 is carried out under heterotrophic conditions using conventional fermentation technologies. The present review critically analyzes the main reasons for this discrepancy and reports on the recent advances and the most promising approaches for its future development in the context of sustainability and circular economy.
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15
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Patel AK, Singhania RR, Sim SJ, Dong CD. Recent advancements in mixotrophic bioprocessing for production of high value microalgal products. BIORESOURCE TECHNOLOGY 2021; 320:124421. [PMID: 33246239 DOI: 10.1016/j.biortech.2020.124421] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 06/11/2023]
Abstract
Recently, microalgal biomass has become an attractive and sustainable feedstock for renewable production of various biochemicals and biofuels. However, attaining required productivity remains a key challenge to develop industrial applications. Fortunately, mixotrophic cultivation strategy (MCS) is leading to higher productivity due to the metabolic ability of some microalgal strain to utilise both photosynthesis and organic carbon compared to phototrophic or heterotrophic processes. The potential of MCS is being explored by researchers for maximized biochemicals and biofuels production however it requires further development yet to reach commercialization stage. In this review, recent developments in the MCS bioprocess for selective value-added (carotenoids) products have been reviewed; synergistic mechanism of carbon and energy was conferred. Moreover, the metabolic regulation of microalgae under MCS for utilized carbon forms and carbon recycling was demonstrated; Additionally, the opportunities and challenges of large-scale MCS have been discussed.
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Affiliation(s)
- Anil Kumar Patel
- Centre for Energy and Environmental Sustainability, Lucknow 226 029, India.
| | | | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seoungbuk-gu, Seoul 02841, Republic of Korea
| | - Cheng Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
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16
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Sivaramakrishnan R, Suresh S, Pugazhendhi A, Mercy Nisha Pauline J, Incharoensakdi A. Response of Scenedesmus sp. to microwave treatment: Enhancement of lipid, exopolysaccharide and biomass production. BIORESOURCE TECHNOLOGY 2020; 312:123562. [PMID: 32504948 DOI: 10.1016/j.biortech.2020.123562] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/17/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
The present study focuses on the use of microwave irradiation to improve the production of lipid, exopolysaccharide and biomass in the microalgae Scenedesmus sp. Microwave treatment conditions such as microwave power, duty cycle % and time was optimized to increase the biomass and lipid content of Scenedesmus sp. Microwave power 100 W, duty cycle 40 %, and 2 min treatment time led to a substantial improvement in the biomass and lipid content. Due to the simultaneous improvement in both the biomass and lipid content, the total lipid production was improved from 0.76 (microwave untreated) to 1.42 g/L (microwave treated) (12 days grown cells). In addition, with biomass and lipid content, microwave treatment also enhanced the production of Exopolysaccharides (EPS) up to 2.3-folds. Furthermore, biodiesel properties were improved to some extent after the microwave treatment. Microwave irradiation is a promising physical treatment method for microalgae to improve total lipid production.
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Affiliation(s)
- Ramachandran Sivaramakrishnan
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Subramaniyam Suresh
- Department of Chemistry, SRM Institute of Science and Technology, Ramapuram Campus, Chennai 600 089, Tamil Nadu, India
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam
| | - J Mercy Nisha Pauline
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore 641 013, Tamil Nadu, India
| | - Aran Incharoensakdi
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Academy of Science, Royal Society of Thailand, Bangkok 10300, Thailand.
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17
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Cao X, Che Z, Zhou B, Guan B, Chen G, Zeng W, Liang Z. Investigations in ultrasound-assisted anticoagulant production by marine Bacillus subtilis ZHX. ULTRASONICS SONOCHEMISTRY 2020; 64:104994. [PMID: 32044681 DOI: 10.1016/j.ultsonch.2020.104994] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 01/29/2020] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
Anticoagulants are the main drugs for the prevention and treatment of thromboembolism. However, most of the present anticoagulants have shortcomings and novel anticoagulants are in great demand. Marine microorganisms are an important source of new drugs. Therefore, in this study, ultrasound was applied to enhance anticoagulant accumulation by marine Bacillus subtilis ZHX. Ultrasound parameters were optimized by single-factor experiments exploring the effects of ultrasound power, duration, duty cycle and the cell growth phases. The optimum conditions were exponential prophase (5 h) with 25 kHz frequency, 140 W power, and a 40% duty cycle for 5 min. The maximum anticoagulant activity (55.36 U/mL) was 1.73 times that of the control group, and the fermentation time was shortened by 3 h. Under optimal conditions, ultrasound increased the carbon utilization by Bacillus subtilis ZHX without significant changes in morphology, favoring cell growth and anticoagulant production. However, excessive ultrasound caused intracellular damage, which inhibited biomass accumulation, decreasing anticoagulant activity and even leading to cell rupture. This is the first report on the use of ultrasound to enhance anticoagulant production by Bacillus, and it provides useful information for scaling-up the process.
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Affiliation(s)
- Xiaoyan Cao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Zhiqun Che
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Bo Zhou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Baohu Guan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Guiguang Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Wei Zeng
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Zhiqun Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Microorganism and Enzyme Research Center of Engineering Technology, College of Life Science and Technology, Guangxi University, Nanning, China.
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18
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Pereira MIB, Chagas BME, Sassi R, Medeiros GF, Aguiar EM, Borba LHF, Silva EPE, Neto JCA, Rangel AHN. Mixotrophic cultivation of Spirulina platensis in dairy wastewater: Effects on the production of biomass, biochemical composition and antioxidant capacity. PLoS One 2019; 14:e0224294. [PMID: 31648264 PMCID: PMC6812818 DOI: 10.1371/journal.pone.0224294] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/09/2019] [Indexed: 11/30/2022] Open
Abstract
Mixotrophic cultivation of microalgae provides a very promising alternative for producing carbohydrate-rich biomass to convert into bioethanol and value-added biocompounds, such as vitamins, pigments, proteins, lipids and antioxidant compounds. Spirulina platensis may present high yields of biomass and carbohydrates when it is grown under mixotrophic conditions using cheese whey. However, there are no previous studies evaluating the influence of this culture system on the profile of fatty acids or antioxidant compounds of this species, which are extremely important for food and pharmaceutical applications and would add value to the cultivation process. S. platensis presented higher specific growth rates, biomass productivity and carbohydrate content under mixotrophic conditions; however, the antioxidant capacity and the protein and lipid content were lower than that of the autotrophic culture. The maximum biomass yield was 2.98 ±0.07 g/L in growth medium with 5.0% whey. The phenolic compound concentration was the same for the biomass obtained under autotrophic and mixotrophic conditions with 2.5% and 5.0% whey. The phenolic compound concentrations showed no significant differences except for that in the growth medium with 10.0% whey, which presented an average value of 22.37±0.14 mg gallic acid/g. Mixotrophic cultivation of S. platensis using whey can be considered a viable alternative to reduce the costs of producing S. platensis biomass and carbohydrates, shorten cultivation time and produce carbohydrates, as it does not require adding expensive chemical nutrients to the growth medium and also takes advantage of cheese whey, an adverse dairy industry byproduct.
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Affiliation(s)
- Maria I. B. Pereira
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Bruna M. E. Chagas
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Roberto Sassi
- Department of Systematic Ecology, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - Guilherme F. Medeiros
- Department of Oceanography and Limnology, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Emerson M. Aguiar
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Luiz H. F. Borba
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Emanuelle P. E. Silva
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Júlio C. Andrade Neto
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Adriano H. N. Rangel
- Agricultural School of Jundiaí, Federal University of Rio Grande do Norte, Natal, RN, Brazil
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19
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Ma C, Ren H, Xing D, Xie G, Ren N, Liu B. Enhanced lipid productivity of an oleaginous microalgal mutant strain Scenedesmus sp. Z-4 and the underlying differences responsible for its superior lipid accumulation over wild strain Scenedesmus sp. MC-1. ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101618] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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20
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Ren HY, Kong F, Cui Z, Zhao L, Ma J, Ren NQ, Liu BF. Cogeneration of hydrogen and lipid from stimulated food waste in an integrated dark fermentative and microalgal bioreactor. BIORESOURCE TECHNOLOGY 2019; 287:121468. [PMID: 31113708 DOI: 10.1016/j.biortech.2019.121468] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 05/08/2019] [Accepted: 05/10/2019] [Indexed: 05/11/2023]
Abstract
In this study, a novel integrated dark fermentative and microalgal bioreactor (IDFMB) was developed to simultaneously produce H2 and lipid from food waste. Under the optimized working volume ratio of 1:4, starch concentration of 7 g L-1 and initial pH of 7.0, the highest H2 production of 1643.5 mL L-1 and lipid yield of 515.6 mg L-1 were achieved. Microalgae can effectively utilize the main end products in dark fermentative effluent (acetic acid and butyric acid) for cell growth and lipid accumulation. Compared with single dark fermentation, the energy conversion efficiency from stimulated food waste was significantly enhanced by the IDFMB, which increased from 14.8% to 35%. Microbial community analysis revealed that Clostridium was the dominant bacteria for H2 generation, and the IDFMB can improve the survival environment of microorganisms. This study provides a novel strategy for efficient energy recovery from food waste.
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Affiliation(s)
- Hong-Yu Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Fanying Kong
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Zhigang Cui
- Department of Building Engineering Technology, Heilongjiang Institute of Construction Technology, Harbin 150025, China
| | - Lei Zhao
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Nan-Qi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Bing-Feng Liu
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
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21
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Yin Y, Wang J. Enhanced biohydrogen production from macroalgae by zero-valent iron nanoparticles: Insights into microbial and metabolites distribution. BIORESOURCE TECHNOLOGY 2019; 282:110-117. [PMID: 30852330 DOI: 10.1016/j.biortech.2019.02.128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 02/26/2019] [Accepted: 02/28/2019] [Indexed: 06/09/2023]
Abstract
In this work, effect of Fe0 nanoparticles (Fe0 NPs) on macroalgae fermentation was explored. Hydrogen production was significantly enhanced by 6.5 times comparing with control test, achieving 20.25 mL H2/g VSadded with addition of 200 mg/L Fe0 NPs. In-depth analysis of substrate conversion showed that both hydrogen generation and acids accumulation were promoted with Fe0 NPs supplementation. Microbial analysis demonstrated that both hydrogen-producing strains belonging to genus Clostridium and Terrisporobacter sp. favorable for acids formation were enriched with Fe0 NPs supplementation, while species Acinetobacter lwoffii beneficial to organics mineralization was eliminated. Complex substrate compositions resulted in more prevalent cooperative relationships among species in the system. This study suggested that Fe0 NPs plays a crucial role in macroalgae fermentation by affecting the microbial distribution, subsequently influencing the products distribution and energy conversion.
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Affiliation(s)
- Yanan Yin
- Tsinghua University - Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing 100084, PR China; Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China
| | - Jianlong Wang
- Tsinghua University - Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, INET, Tsinghua University, Beijing 100084, PR China; Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, INET, Tsinghua University, Beijing 100084, PR China.
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22
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Cheng J, Xu J, Ye Q, Lai X, Zhang X, Zhou J. Strengthening mass transfer of carbon dioxide microbubbles dissolver in a horizontal tubular photo-bioreactor for improving microalgae growth. BIORESOURCE TECHNOLOGY 2019; 277:11-17. [PMID: 30654103 DOI: 10.1016/j.biortech.2019.01.019] [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: 10/29/2018] [Revised: 01/04/2019] [Accepted: 01/05/2019] [Indexed: 06/09/2023]
Abstract
A CO2 microbubbles dissolver (CMD) was developed to facilitate dissolving inorganic carbon and strengthening mass transfer in a horizontal tubular photo-bioreactor system (HTPBRS), which enhanced microalgae biomass productivity with flue gas containing 15% CO2. The influence of pump power on the bubble formation and mixing effect was found to be more obvious than that of gas flow rate. Ceramic shell aerator was more favorable for reducing bubble diameter and enhancing mass transfer than traditional rubber strip aerator. Bubble formation time decreased by 53.4% and mixing time decreased by 68.9% in response to the increased pump power. When the base area ratio of ceramic shell aerator to dissolver in the HTPBRS increased, bubble formation time decreased by 19.6% and mass transfer coefficient increased by 80.9%. The biomass yield of microalgae Chlorella PY-ZU1 with ceramic shell aerator was 30% higher than that with rubber strip aerator in the HTPBRS.
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Affiliation(s)
- Jun Cheng
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China.
| | - Junchen Xu
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Qing Ye
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Xin Lai
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Xiangdong Zhang
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Junhu Zhou
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
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