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Tiang MF, Hanipa MAF, Mahmod SS, Zainuddin MT, Lutfi AAI, Jahim JM, Takriff MS, Reungsang A, Wu SY, Abdul PM. Impact of light spectra on photo-fermentative biohydrogen production by Rhodobacter sphaeroides KKU-PS1. BIORESOURCE TECHNOLOGY 2024; 394:130222. [PMID: 38109981 DOI: 10.1016/j.biortech.2023.130222] [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: 10/03/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/20/2023]
Abstract
Purple non-sulphur bacteria can only capture up to 10 % light spectra and only 1-5 % of light is converted efficiently for biohydrogen production. To enhance light capture and conversion efficiencies, it is necessary to understand the impact of various light spectra on light harvesting pigments. During photo-fermentation, Rhodobacter sphaeroides KKU-PS1 cultivated at 30 °C and 150 rpm under different light spectra has been investigated. Results revealed that red light is more beneficial for biomass accumulation, whereas green light showed the greatest impact on photo-fermentative biohydrogen production. Light conversion efficiency by green light is 2-folds of that under control white light, hence photo-hydrogen productivity is ranked as green > red > orange > violet > blue > yellow. These experimental data demonstrated that green and red lights are essential for photo-hydrogen and biomass productions of R. sphaeroides and a clearer understanding that possibly pave the way for further photosynthetic enhancement research.
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Affiliation(s)
- Ming Foong Tiang
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia
| | - Muhammad Alif Fitri Hanipa
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia
| | - Safa Senan Mahmod
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia; Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis, UniMAP, 02600 Arau, Perlis, Malaysia; Centre of Excellence for Biomass Utilization, Universiti Malaysia Perlis, UniMAP, 02600 Arau, Perlis, Malaysia
| | - Muhammad Tarmidzi Zainuddin
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia
| | - Abdullah Amru Indera Lutfi
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia; Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia
| | - Jamaliah Md Jahim
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia; Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia
| | - Mohd Sobri Takriff
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia; Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia; Department of Mechanical and Nuclear Engineering, College of Engineering, University of Sharjah, United Arab Emirates
| | - Alissara Reungsang
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Shu-Yii Wu
- Department of Chemical Engineering, Feng Chia University, Taichung 40724, Taiwan; Green Energy Development Center, Feng Chia University, Taichung 40724, Taiwan
| | - Peer Mohamed Abdul
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia; Centre of Excellence for Biomass Utilization, Universiti Malaysia Perlis, UniMAP, 02600 Arau, Perlis, Malaysia; Research Centre for Sustainable Process Technology (CESPRO), Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia.
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Evaluation of Growth and Utilization Potential of Rhodobacter sphaeroides in Reused Medium. Mol Biotechnol 2023; 65:441-445. [PMID: 35982379 DOI: 10.1007/s12033-022-00553-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/09/2022] [Indexed: 10/15/2022]
Abstract
Rhodobacter sphaeroides is a metabolically versatile purple non-sulfur bacteria that can produce valuable substances. As the low-cost and high-efficiency production of valuable substances is attracting attention, the reuse of the medium is emerging as a promising strategy. Therefore, in this study, the growth of R. sphaeroides was evaluated by reusing the medium of Escherichia coli and Saccharomyces cerevisiae. As a result, in the reuse of the medium in which S. cerevisiae was cultured, sufficient growth of R. sphaeroides could be confirmed, and especially, the growth of R. sphaeroides was not inhibited under aerobic conditions. Therefore, it is considered that the strategy of reusing the medium of S. cerevisiae is sufficiently feasible. Of the organic compounds investigated, R. sphaeroides grew best in succinic acid, followed by malic acid, citric acid, acetic acid, and glucose. In addition, by comparing photopigment synthesis in the reused medium, we propose the hypothesis that succinic acid may play an important role in photopigment synthesis for the first time.
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Chen J, Wei J, Ma C, Yang Z, Li Z, Yang X, Wang M, Zhang H, Hu J, Zhang C. Photosynthetic bacteria-based technology is a potential alternative to meet sustainable wastewater treatment requirement? ENVIRONMENT INTERNATIONAL 2020; 137:105417. [PMID: 32120141 DOI: 10.1016/j.envint.2019.105417] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 11/22/2019] [Accepted: 12/11/2019] [Indexed: 05/23/2023]
Abstract
A paradigm shift is underway in wastewater treatment from pollution removal to resource or energy recovery. However, conventional activated sludge (CAS) as the core technology of wastewater treatment is confronted with severe challenges on high energy consumption, sludge disposal and inevitable greenhouse gas emission, which are posing a serious impact on the current wastewater industry. It is urgent to find new alternative methods to remedy these defects. Photosynthetic bacteria (PSB) have flexible metabolic modes and high tolerance, which enhance the removal of nutrients, heavy metals and organic contaminants efficiency in different wastewater. The unique phototrophic growth of PSB breaks the restriction of nutrient metabolism in the CAS system. Recent studies have shown that PSB-based technologies can not only achieve the recovery of nutrient and energy, but also improve the degradation efficiency of refractory substances. If the application parameters can be determined, there will be great prospects and economic effects. This review summarizes the research breakthroughs and application promotion of PSB-based wastewater treatment technology in recent years. Comparing discussed the superiority and inferiority from the perspective of application range, performance differences and recovery possibility. Pathways involved in the nutrient substance and the corresponding influencing parameters are also described in detail. The mode of PSB biodegradation processes presented a promising alternative for new wastewater treatment scheme. In the future, more mechanical and model studies, deterministic operating parameters, revolutionary process design is need for large-scale industrial promotion of PSB-based wastewater treatment.
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Affiliation(s)
- Jiaqi Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Jingjing Wei
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chi Ma
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zhongzhu Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Zihao Li
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Xu Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Mingsheng Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Huaqing Zhang
- Qinglin Environmental Protection Co. Ltd., Ningbo 315000, China
| | - Jiawei Hu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China
| | - Chang Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
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Qi X, Ren Y, Liang P, Wang X. New insights in photosynthetic microbial fuel cell using anoxygenic phototrophic bacteria. BIORESOURCE TECHNOLOGY 2018; 258:310-317. [PMID: 29571891 DOI: 10.1016/j.biortech.2018.03.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/05/2018] [Accepted: 03/11/2018] [Indexed: 06/08/2023]
Abstract
Anoxygenic phototrophic bacteria (APB) pay a key role in biogeochemical cycles, and it can convert light energy to chemical energy by photosynthesis process. Photosynthetic microbial fuel cell (photo-MFC) is regarded as a promising energy-harvesting technology, which is also applied to environment treatment in recent years. The previous studies show that photo-MFC with APB have higher power putout than other bioelectrochemical systems. However, photo-MFC with APB is not reviewed due to some limited factors in the development process. In this review, photo-MFC with APB is treated according to its electron transfer pathways, the current understanding, APB strains, application, influence of substrates, and economic assessment. Meanwhile, knowledge of photosynthesis components and electron transfer pathways of APB is crucial for developing new energy and easing the serious energy crisis. Moreover, some new insights (the optimization of light source and self-sustaining bioelectricity generation) are proposed for the future explorations.
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Affiliation(s)
- Xiang Qi
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment, Tsinghua University, Beijing 100084, PR China; University of Chinese Academy of Sciences, Beijing 101407, PR China
| | - Yiwei Ren
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; University of Chinese Academy of Sciences, Beijing 101407, PR China
| | - Peng Liang
- State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Xingzu Wang
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, PR China; University of Chinese Academy of Sciences, Beijing 101407, PR China.
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Qi X, Ren Y, Tian E, Wang X. The exploration of monochromatic near-infrared LED improved anoxygenic photosynthetic bacteria Rhodopseudomonas sp. for wastewater treatment. BIORESOURCE TECHNOLOGY 2017; 241:620-626. [PMID: 28605726 DOI: 10.1016/j.biortech.2017.05.202] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 05/27/2017] [Accepted: 05/30/2017] [Indexed: 06/07/2023]
Abstract
The future wastewater treatment requires high-efficiency and energy-saving technology. Anoxygenic photosynthetic bacteria (APB) is deemed as an eco-friendly microorganism, which could be employed in wastewater treatment. Here, monochromatic near-infrared (MNIR) light emitting diode (LED) was used, and three key factors (light quality, light intensity and photoperiod) of it were analyzed by a response surface methodology (RSM) in APB wastewater treatment. The results showed that light quality was the biggest impact factor in APB wastewater treatment, and nearly 58.07% of NH4+-N and 70.62% of chemical oxygen demand (COD) could be removed based on 46.4% of that theoretically possible. The light quality's study revealed that APB had the highest NH4+-N and COD removal, biomass production, and bacteriochlorophyll a production with 850nm IR LED. Moreover, the application of optimal MNIR LED could not only save energy, but also avoid algae bloom of photo-bioreactors (PBR).
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Affiliation(s)
- Xiang Qi
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; College of Resource and Environment, University of Chinese Academy of Sciences, Beijing 101407, China
| | - Yiwei Ren
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China; Chongqing Industrial Technology Innovation Institute of Environmental Protection Membrane Materials and Equipment Technology, Chongqing 408400, China
| | - Enling Tian
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Xingzu Wang
- Key Laboratory of Reservoir Aquatic Environment, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China.
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Park JY, Kim YH, Min J. CO2 reduction and organic compounds production by photosynthetic bacteria with surface displayed carbonic anhydrase and inducible expression of phosphoenolpyruvate carboxylase. Enzyme Microb Technol 2017; 96:103-110. [DOI: 10.1016/j.enzmictec.2016.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 10/05/2016] [Accepted: 10/11/2016] [Indexed: 11/30/2022]
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Zhou Q, Zhang P, Zhang G. Biomass and pigments production in photosynthetic bacteria wastewater treatment: effects of light sources. BIORESOURCE TECHNOLOGY 2015; 179:505-509. [PMID: 25575211 DOI: 10.1016/j.biortech.2014.12.077] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 12/20/2014] [Accepted: 12/22/2014] [Indexed: 06/04/2023]
Abstract
This study is aimed at enhancing biomass and pigments production together with pollution removal in photosynthetic bacteria (PSB) wastewater treatment via different light sources. Red, yellow, blue, white LED and incandescent lamp were used. Results showed different light sources had great effects on the PSB. PSB had the highest biomass production, COD removal and biomass yield with red LED. The corresponding biomass, COD removal and biomass yield reached 2580 mg/L, 88.6% and 0.49 mg-biomass/mg-COD-removal, respectively. The hydraulic retention time of wastewater treatment could be shortened to 72 h with red LED. Mechanism analysis showed higher ATP was produced with red LED than others. Light sources could significantly affect the pigments production. The pigments productions were greatly higher with LED than incandescent lamp. Yellow LED had the highest pigments production while red LED produced the highest carotenoid/bacteriochlorophyll ratio. Considering both efficiency and energy cost, red LED was the optimal light source.
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Affiliation(s)
- Qin Zhou
- School of Environment & Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China.
| | - Panyue Zhang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
| | - Guangming Zhang
- School of Environment & Natural Resource, Renmin University of China, 59 Zhongguancun Street, Beijing 100872, China.
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Characterization of mixed organic compounds extracted from Rhodobacter sphaeroides and applications to enhance the physiological responses of fermenting microorganisms. Mol Cell Toxicol 2014. [DOI: 10.1007/s13273-014-0034-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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9
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Xu J, Feng Y, Wang Y, Lin X. Characteristics of purple nonsulfur bacteria grown under Stevia residue extractions. Lett Appl Microbiol 2013; 57:420-6. [PMID: 23837648 DOI: 10.1111/lam.12129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 06/29/2013] [Accepted: 06/30/2013] [Indexed: 11/29/2022]
Abstract
As a consequence of the large-scale cultivation of Stevia plants, releases of plant residues, the byproduct after sweetener extraction, to the environment are inevitable. Stevia residue and its effluent after batching up contain large amounts of organic matters with small molecular weight, which therefore are a potential pollution source. Meanwhile, they are favourite substrates for micro-organism growths. This investigation was aimed to utilize the simulated effluent of Stevia residue to enrich the representative purple nonsulfur bacterium (PNSB), Rhodopseudomonas palustris (Rps. palustris), which has important economic values. The growth profile and quality of Rps. palustris were characterized by spectrophotometry, compared to those grown in common PNSB mineral synthetic medium. Our results revealed that the simulated effluent of Stevia residue not only stimulated Rps. palustris growth to a greater extent, but also increased its physiologically active cytochrome concentrations and excreted indole-3-acetic acid (IAA) content. This variation in phenotype of Rps. palustris could result from the shift in its genotype, further revealed by the repetitive sequence-based PCR (rep-PCR) fingerprinting analysis. Our results showed that the effluent of Stevia residue was a promising substrate for microbial growth.
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Affiliation(s)
- J Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
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Kuo FS, Chien YH, Chen CJ. Effects of light sources on growth and carotenoid content of photosynthetic bacteria Rhodopseudomonas palustris. BIORESOURCE TECHNOLOGY 2012; 113:315-318. [PMID: 22330604 DOI: 10.1016/j.biortech.2012.01.087] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Revised: 01/15/2012] [Accepted: 01/17/2012] [Indexed: 05/31/2023]
Abstract
This study investigated the effects of eight light sources on photosynthetic bacteria (Rhodopseudomonas palustris) growth and carotenoid content (CD), cultured for 144 h. Light sources were incandescent lamp (IL), halogen lamp (HL), fluorescence lamp (FL), and light-emitting diodes (LEDs) of white (LW), yellow (LY), red (LR), blue (LB), and green (LG). Dark condition served as the control. Under around 2000 lux, light sources ranked greatest to least bacterial growth effect were (LB=IL) > FL > LW ≥ HL ≥ LR ≥ (LG=LY=DK). Ranking effect on CD content was LB > IL ≥ LY ≥ (HL=LR=LG) ≥ LW ≥ DK ≥ FL. Energy efficiency for bacterial growth was LB > LW > LY > IL > LG > HL > FL > LR. CD productivity ranking was LB > LY > LW > LG > IL > HL > LR > FL. Results revealed that LB saved 75% energy and increased CD productivity by 348% compared with IL.
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Affiliation(s)
- Fu-Shiu Kuo
- Department of Aquaculture, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202, Taiwan
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Lee HJ, Park JY, Le TH, Kim YH, Min J. Effect of mixed organic compounds extracted from Rhodobacter sphaeroides on Daphnia magna (water flea). World J Microbiol Biotechnol 2011. [DOI: 10.1007/s11274-011-0763-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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