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Sobolewska E, Borowski S, Kręgiel D. Cultivation of yeasts on liquid digestate to remove organic pollutants and nutrients and for potential application as co-culture with microalgae. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 362:121351. [PMID: 38838535 DOI: 10.1016/j.jenvman.2024.121351] [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: 01/10/2024] [Revised: 04/08/2024] [Accepted: 05/30/2024] [Indexed: 06/07/2024]
Abstract
In this study, the growth of yeast and yeast-like fungi in the liquid digestate from vegetable wastes was investigated in order to remove nutrients and organic pollutants, and for their application as co-culture members with green microalgae. The studied yeast strains were characterized for their assimilative and enzymatic profiles as well as temperature requirements. In the first experimental stage, the growth dynamics of each strain were determined, allowing to select the best yeasts for further studies. In the subsequent stage, the ability of selectants to remove organic pollutants was assessed. Different cultivation media containing respectively 1:3, 1:1, 3:1 vol ratio of liquid digestate and the basal minimal medium were used. Among all tested yeast strains, Rhodotorula mucilaginosa DSM 70825 showed the most promising results, demonstrating the highest potential for removing organic substrates and nutrients. Depending on the medium, this strain achieved 50-80% sCOD, 45-60% tVFAs, 21-45% TN, 33-52% PO43- reduction rates. Similar results were obtained for the strain Candida sp. OR687571. The high nutrient and organics removal efficiency by these yeasts could likely be linked to their ability to assimilate xylose (being the main source of carbon in the liquid digestate). In culture media containing liquid digestate, both yeast strains achieved good viability and proliferation potential. In the liquid digestate medium, R. mucilaginosa and Candida sp. showed vitality at the level of 51.5% and 45.0%, respectively. These strains seem to be a good starting material for developing effective digestate treatment strategies involving monocultures and/or consortia with other yeasts or green microalgae.
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Affiliation(s)
- Ewelina Sobolewska
- Department of Environmental Biotechnology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Wólczańska 171/173, 90-530, Lodz, Poland; Interdisciplinary Doctoral School, Lodz University of Technology, Żeromskiego 116, 90-924, Lodz, Poland.
| | - Sebastian Borowski
- Department of Environmental Biotechnology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Wólczańska 171/173, 90-530, Lodz, Poland.
| | - Dorota Kręgiel
- Department of Environmental Biotechnology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Wólczańska 171/173, 90-530, Lodz, Poland.
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2
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Gao F, Liu H, Du Y, Fang X, Cheng B, Shi B. Dietary Resveratrol Ameliorates Hepatic Fatty Acid Metabolism and Jejunal Barrier in Offspring Induced by Maternal Oxidized Soybean Oil Challenge. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:3730-3740. [PMID: 38320975 DOI: 10.1021/acs.jafc.3c08553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Increasing evidence indicates that maternal exposure to oxidized soybean oil (OSO) causes damage to the mother and offspring. The antioxidant resveratrol (Res) has a variety of health benefits. However, the protective effect of Res on mitigating offspring damage after maternal exposure to OSO and its mechanism remains unclear. Therefore, this study aimed to investigate the effect of Res on hepatic fatty acid metabolism and the jejunal barrier in suckling piglets after maternal OSO exposure. A total of 18 sows in late gestation were randomly assigned to three treatments. The sows were fed with a fresh soybean oil (FSO) diet, an OSO diet, or the OSO diet supplemented with 300 mg/kg Res (OSO + Res), respectively. The results showed that maternal supplementation of Res restored the mRNA levels of genes related to fatty acid metabolism and increased the activities of catalase (CAT) and total superoxide dismutase (T-SOD) in suckling piglets' livers under the OSO challenge. Moreover, the OSO + Res group restored the mRNA levels of occludin and claudin 4 in suckling piglet jejunum compared with the results of the OSO challenges. In summary, supplementation with Res improves hepatic fatty acid metabolism and intestinal barrier function of suckling piglets after maternal OSO challenge during late gestation and lactation.
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Affiliation(s)
- Feng Gao
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Haiyang Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Yongqing Du
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Xiuyu Fang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Baojing Cheng
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
| | - Baoming Shi
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150030, P. R. China
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Sharghi EA, Ghasemian P, Davarpanah L, Faridizad G. Investigation of a membrane bioreactor's performances in treating sunflower oil refinery wastewater containing high oleic acid at different SRTs. Bioprocess Biosyst Eng 2023; 46:1613-1625. [PMID: 37656256 DOI: 10.1007/s00449-023-02923-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Accepted: 08/22/2023] [Indexed: 09/02/2023]
Abstract
This study investigated the MBR performance, sludge morphology, and membrane fouling potential in treating sunflower oil refinery wastewater containing high oleic acid at three different SRTs of 10 days, 40 days, and infinite. The analysis of mixed liquor morphology including sludge volume index, PSD, EPS, and SMP showed that the sludge flocs compressibility and bioflocculation considerably improved at 40-days SRT. Additionally, at this SRT, the mixed liquor O&G, COD, and SMP accumulation were low, and the microbial activity and COD removal were enhanced. The gas chromatography/mass spectrometry analysis results confirmed the formation of three different new compounds related to non-readily biodegradable recalcitrant oily compounds and SMP at all SRTs. The analysis of mixed liquor EPS, PSD, SMP, and effluent COD at three different SRTs suggests that under the industrial conditions of MBR operation treating SORW with high oleic acid, the optimal operating conditions are predicted to be at 40-days SRT.
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Affiliation(s)
- E Abdollahzadeh Sharghi
- Environmental Group, Department of Energy, Materials and Energy Research Center, P.O. Box 31787-316, Karaj, Alborz, Iran.
| | - P Ghasemian
- Environmental Group, Department of Energy, Materials and Energy Research Center, P.O. Box 31787-316, Karaj, Alborz, Iran
| | - L Davarpanah
- Environmental Group, Department of Energy, Materials and Energy Research Center, P.O. Box 31787-316, Karaj, Alborz, Iran
| | - G Faridizad
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
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Amara NI, Chukwuemeka ES, Obiajulu NO, Chukwuma OJ. Yeast-driven valorization of agro-industrial wastewater: an overview. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1252. [PMID: 37768404 DOI: 10.1007/s10661-023-11863-w] [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: 06/12/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023]
Abstract
The intensive industrial and agricultural activities currently on-going worldwide to feed the growing human population have led to significant increase in the amount of wastewater produced. These effluents are high in phosphorus (P), nitrogen (N), chemical oxygen demand (COD), biochemical oxygen demand (BOD), and heavy metals. These compounds can provoke imbalance in the ecosystem with grievous consequences to both the environment and humans. Adequate treatment of these wastewaters is therefore of utmost importance to humanity. This can be achieved through valorization of these waste streams, which is based on biorefinery idea and concept of reduce, reuse, and recycle for sustainable circular economy. This concept uses innovative processes to produce value-added products from waste such as wastewater. Yeast-based wastewater treatment is currently on the rise given to the many characteristics of yeast cells. Yeasts are generally fast growing, and they are robust in terms of tolerance to stress and inhibitory compounds, in addition to their ability to metabolize a diverse range of substrates and create a diverse range of metabolites. Therefore, yeast cells possess the capacity to recover and transform agro-industrial wastewater nutrients into highly valuable metabolites. In addition to remediating the wastewater, numerous value-added products such as single cell oil (SCO), single cell proteins (SCPs), biofuels, organic acid, and aromatic compounds amongst others can be produced through fermentation of wastewater by yeast cells. This work thus brings to limelight the potential roles of yeast cells in reducing, reusing, and recycling of agro-industrial wastewaters while proffering solutions to some of the factors that limit yeast-mediated wastewater valorization.
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Saeed OF, Hameed KW, Abbar AH. Treatment vegetable oil refinery wastewater by sequential electrocoagulation-electrooxidation process. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118362. [PMID: 37311343 DOI: 10.1016/j.jenvman.2023.118362] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/20/2023] [Accepted: 06/07/2023] [Indexed: 06/15/2023]
Abstract
In the present study a sequential process composed of electrocoagulation (EC) followed by electrooxidation (EO) was utilized at the laboratory scale to remove the chemical oxygen demand (COD) from wastewater generated in Iraqi vegetable oil refinery plant.in the EC, impacts of operating variables such as current density (10-30 mA cm-2) and pH (4-10),and EC time (30-90 min) on the COD removal (RE%) were investigated using response surface methodology (RSM) based on Box- Behnken design(BBD). a mathematical correlation that relates the operating factors with RE% was developed and its regression coefficient was 99.02% confirming the significant of the model. Response surface plots showed that RE% increased with increasing current density and time while it decreased with increasing pH. The optimum removal with a lower cost for EC process were achieved at current density of 30mA/cm2, pH of 4, and electrolysis time of 90 min in which RE% of 69.19% was obtained with requirement of 0.513kWh/kg COD as specific energy consumption (SEC). The effluent exit from EC was treated by EO for a period of 240min at a current density of 30mA/cm2 and an initial pH value of 4 to obtain RE% of 96% at SEC of 1.554 kWh/kg COD. Combining EC with EO resulted in a total RE% of 98.72% and a total SEC of 2.067 kWh/kg COD. Based on the results of present study, the applicability of a sequential electrocoagulation-electrooxidation process for treatment vegetable oil wastewaters is feasible.
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Affiliation(s)
- Osama F Saeed
- Department of Biochemical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, Iraq
| | - Khalid W Hameed
- Department of Biochemical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, Iraq
| | - Ali H Abbar
- Department of Biochemical Engineering, Al-Khwarizmi College of Engineering, University of Baghdad, Baghdad, Iraq.
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Qiao N, Yue S, Cheng J, Wang C, Wang X, Shi Y, Guo J, Yu D. A gas distributor capable of multiple injection directions to improve the gas–liquid dispersion performance in the airlift loop reactor. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2022.108770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Wang C, Jin M, Yue S, Wang X, Liu B, Shi Y, Qiao N, Yu D. Computational fluid dynamics analysis of Trichosporon fermentans flocculation in refined soybean oil wastewater and flocculation rate prediction method. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 835:155415. [PMID: 35469876 DOI: 10.1016/j.scitotenv.2022.155415] [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: 02/13/2022] [Revised: 04/12/2022] [Accepted: 04/17/2022] [Indexed: 06/14/2023]
Abstract
Trichosporon fermentans can be used to treat refined soybean oil wastewater (RSOW) and produce microbial lipids. Bioflocculation is an effective method to recover Trichosporon fermentans which accumulates intracellular oils from wastewater. During the flocculation, the hydrodynamic distribution and parameters in the reactor are important limiting factors of yeast flocculation performance. In a 0.25 L flocculation device, it was found that the appropriate range of turbulence kinetic energy was within 0.00065-0.00073 m2/s2, the dissipation rate was within 0.119-0.317 m2/s3, and the shear force was less than 0.433 Pa by computational fluid dynamics. In this case, the flocculation rate (Fr) of Trichosporon fermentans could reach more than 90%. The empirical formula associated Fr of Trichosporon fermentans with hydrodynamic parameters was obtained by Matlab, and improved in the enlargement of flocculation device, displaying an error of less than 3.03%. A conical draft tube airlift circulating reactor for flocculation was designed based on the empirical formula, and the Fr reached 91.3%. The study shows that it is feasible to predict Fr of Trichosporon fermentans according to hydrodynamic parameters by numerical simulation, and design the industrial reactor for flocculation harvesting yeasts. It is also helpful for large-scale treatment of RSOW in a safe environment.
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Affiliation(s)
- Chuandong Wang
- Jilin Provincial Science and Technology Innovation Center of Clean Conversion and High-valued Utilization of Biomass, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Meitong Jin
- Jilin Provincial Science and Technology Innovation Center of Clean Conversion and High-valued Utilization of Biomass, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Shang Yue
- Jilin Provincial Science and Technology Innovation Center of Clean Conversion and High-valued Utilization of Biomass, Northeast Electric Power University, Jilin 132012, China; School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China
| | - Xuefeng Wang
- Hebei Key Laboratory of Water Quality Engineering and Comprehensive Utilization of Water Resources, Hebei University of Architecture, Zhangjiakou 075000, China
| | - Baixin Liu
- Yuanlin Safety Technology Co, Ltd, Changchun 130022, China
| | - Yunfen Shi
- Jilin Provincial Science and Technology Innovation Center of Clean Conversion and High-valued Utilization of Biomass, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Nan Qiao
- Jilin Provincial Science and Technology Innovation Center of Clean Conversion and High-valued Utilization of Biomass, Northeast Electric Power University, Jilin 132012, China; School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, China.
| | - Dayu Yu
- Jilin Provincial Science and Technology Innovation Center of Clean Conversion and High-valued Utilization of Biomass, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
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Gufrana T, Islam H, Khare S, Pandey A, P R. In-situ transesterification of single-cell oil for biodiesel production: a review. Prep Biochem Biotechnol 2022; 53:120-135. [PMID: 35499507 DOI: 10.1080/10826068.2022.2065684] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
In recent years, biodiesel synthesis and production demands have increased because of its high degradability, cleaner emissions, non-toxicity, and an alternative to petroleum diesel. In this context, Single Cell Oil (SCO) has been identified as an alternative feedstock, having the advantage of accumulating high intracellular lipid. SCO/microbial lipids are potential alternatives for sustainable biodiesel production. The traditional technique for biodiesel production from the oils obtained from microbes generally requires two steps: lipid extraction and transesterification. In-situ transesterification is an innovative and renewable process for biodiesel production. It rules out the need to isolate and refine the feedstock lipid, as it directly uses biomass in a single step, i.e., the pretreated biomass will be subjected to in-situ transesterification in the presence of catalysts. Hence, the production cost can be reduced by eliminating the lipid extraction procedure. The current review focuses on the basic features and advantages of in-situ transesterification of SCO for biodiesel production with the aid of short-chain alcohols along with different acid, base, and enzyme catalysts. In addition, a comparative study was carried out to highlight the merits of in-situ transesterification over conventional transesterification.
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Affiliation(s)
- Tasneem Gufrana
- Bioprocess and Bioseparation Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Hasibul Islam
- Bioprocess and Bioseparation Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Shivani Khare
- Bioprocess and Bioseparation Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Ankita Pandey
- Bioprocess and Bioseparation Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - Radha P
- Bioprocess and Bioseparation Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
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Chaiyarat A, Saejung C. Photosynthetic bacteria with iron oxide nanoparticles as catalyst for cooking oil removal and valuable products recovery with heavy metal co-contamination. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 140:81-89. [PMID: 35074534 DOI: 10.1016/j.wasman.2022.01.005] [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: 08/04/2021] [Revised: 10/18/2021] [Accepted: 01/08/2022] [Indexed: 06/14/2023]
Abstract
Waste cooking oil discharge causes environmental pollution in receiving waters, particularly when associated with heavy metals that can lead to formation of hazardous organometallic compounds. This study combined iron oxide nanomaterial and the anoxygenic photosynthetic bacterium Rhodopseudomonas faecalis PA2 for removal of cooking oil in the presence of heavy metals. R. faecalis PA2, with known capability to generate beneficial substances from several wastes, was capable of cooking oil removal with production of valuable products. Oil removal, biomass, protein, and carotenoid production were 82.38%, 1.48 g/L, 1,600.19 mg/L, and 1,046.33 mg/L, respectively, under optimal conditions (cooking oil as carbon source and 30% inoculum density). Iron (Fe) stimulates growth of R. faecalis; in this study, Fe3O4 nanoparticles were synthesized and used as a catalyst to facilitate interaction and high reactivity between Fe and R. faecalis PA2. Size measurement by transmission electron microscopy (17.44 nm), X-ray diffraction peaks, and magnetic susceptibility confirmed that the synthesized nanoparticles were magnetite Fe3O4. Biomass, protein, and carotenoid production of the Fe3O4 supplemented experiment increased by 61.56%, 70.78%, and 57.2%, respectively, when compared with the control. When different concentrations of heavy metals (Pb, Ni, Co, and Zn) were supplemented in the media containing cooking oil, Fe3O4 addition increased heavy metal tolerance, improved bacterial growth, and enhanced valuable products when compared with the non-supplemented group. This study reports the positive impact of nanoparticle application as a catalyst for valorization of cooking oil waste with heavy metal co-contamination by the photosynthetic bacterium R. faecalis PA2.
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Affiliation(s)
- Anuwat Chaiyarat
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chewapat Saejung
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand; Research Center for Environmental and Hazardous Substance Management (EHSM), Khon Kaen University, Khon Kaen 40002, Thailand.
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Shi Y, Liu X, Jin M, Chen H, Yi F, Wang L, Qiao N, Yu D. Incorporating corn oil refining wastewater improves lipid accumulation and self-settling property of Trichosporon fermentans in corn starch wastewater. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Watsuntorn W, Chuengcharoenphanich N, Niltaya P, Butkumchote C, Theerachat M, Glinwong C, Qi W, Wang Z, Chulalaksananukul W. A novel oleaginous yeast Saccharomyces cerevisiae CU-TPD4 for lipid and biodiesel production. CHEMOSPHERE 2021; 280:130782. [PMID: 34162092 DOI: 10.1016/j.chemosphere.2021.130782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 04/22/2021] [Accepted: 04/28/2021] [Indexed: 06/08/2023]
Abstract
This study reports on the novel Saccharomyces cerevisiae CU-TPD4 that was isolated from coconut waste residues obtained from a coconut factory in Thailand. The CU-TPD4 isolate was confirmed to be a S. cerevisiae by molecular analysis and to be an oleaginous yeast with more than 20% (w/w) of the cell dry weight (CDW) present in the form of lipids. The lipid content and lipid yield of CU-TPD4 (52.96 ± 1.15% of CDW and 1.78 ± 0.06 g/L, respectively) under optimized growth conditions were much higher than those under normal growth conditions (22.65 ± 1.32% of CDW and 1.24 ± 0.12 g/L, respectively). The major fatty acids produced by CU-TPD4 were oleic (C18:1), palmitoleic (C16:1), stearic (C18:0), and palmitic (C16:0) acids. Mathematical estimation of the physical properties of the biodiesel obtained by transesterification of the extracted lipid suggested it was suitable as biodiesel with respect to the ASTM D6751 and EN 14214 international standards. Consequently, S. cerevisiae CU-TPD4 is expected to emerge as a promising alternative for biodiesel production.
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Affiliation(s)
- Wannapawn Watsuntorn
- Biofuels by Biocatalysts Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Nuttha Chuengcharoenphanich
- Biofuels by Biocatalysts Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Poompat Niltaya
- Biofuels by Biocatalysts Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Cheryanus Butkumchote
- Biofuels by Biocatalysts Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Program in Biotechnology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Monnat Theerachat
- Biofuels by Biocatalysts Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chompunuch Glinwong
- Biofuels by Biocatalysts Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Wei Qi
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Zhongming Wang
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Warawut Chulalaksananukul
- Biofuels by Biocatalysts Research Unit, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand; Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
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Cao X, Pan Y, Wei W, Yuan T, Wang S, Xiang L, Yuan Y. Single cell oil production by Trichosporon sp.: Effects of fermentation conditions on fatty acid composition and applications in synthesis of structured triacylglycerols. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111691] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Asgharnejad H, Khorshidi Nazloo E, Madani Larijani M, Hajinajaf N, Rashidi H. Comprehensive review of water management and wastewater treatment in food processing industries in the framework of water-food-environment nexus. Compr Rev Food Sci Food Saf 2021; 20:4779-4815. [PMID: 34190421 DOI: 10.1111/1541-4337.12782] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 01/25/2023]
Abstract
Food processing is among the greatest water-consuming industries with a significant role in the implementation of sustainable development goals. Water-consuming industries such as food processing have become a threat to limited freshwater resources, and numerous attempts are being carried out in order to develop and apply novel approaches for water management in these industries. Studies have shown the positive impact of the new methods of process integration (e.g., water pinch, mathematical optimization, etc.) in maximizing water reuse and recycle. Applying these methods in food processing industries not only significantly supported water consumption minimization but also contributed to environmental protection by reducing wastewater generation. The methods can also increase the productivity of these industries and direct them to sustainable production. This interconnection led to a new subcategory in nexus studies known as water-food-environment nexus. The nexus assures sustainable food production with minimum freshwater consumption and minimizes the environmental destructions caused by untreated wastewater discharge. The aim of this study was to provide a thorough review of water-food-environment nexus application in food processing industries and explore the nexus from different aspects. The current study explored the process of food industries in different sectors regarding water consumption and wastewater generation, both qualitatively and quantitatively. The most recent wastewater treatment methods carried out in different food processing sectors were also reviewed. This review provided a comprehensive literature for choosing the optimum scenario of water and wastewater management in food processing industries.
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Affiliation(s)
- Hashem Asgharnejad
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Ehsan Khorshidi Nazloo
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Maryam Madani Larijani
- Department of Community Health and Epidemiology, College of Medicine, University of Saskatchewan, Saskatoon, Canada
| | - Nima Hajinajaf
- Chemical Engineering Program, School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, Arizona, USA
| | - Hamidreza Rashidi
- School of Environment and Sustainability, University of Saskatchewan, Saskatoon, Canada
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Melo MM, Dos Reis KC, Pires JF, das Neves TT, Schwan RF, Silva CF. Bio-hydrolysis of used soybean oil: environmental-friendly technology using microbial consortium. Biodegradation 2021; 32:551-562. [PMID: 34046776 DOI: 10.1007/s10532-021-09951-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 05/15/2021] [Indexed: 11/29/2022]
Abstract
In this work, strains of Bacillus subtilis were inoculated in consortium with Rhodotorula mucilaginosa into spent soy oil as aiming to biological treatment and low-cost reuse. The microorganisms were previously isolated and selected for the lipolytic capacity of the alperujo residue generated during the processing of olive oil. For fermentation, bioassays containing Rhodotorula mucilaginosa isolated from alperujo and Candida rugosa CCMA 00371, both co-inoculated with Bacillus subtilis CCMA 0085 in medium containing (% w/v) 0.075 glucose and 0.375 (NH4)3 PO4 in 75 mL of water and 75 mL of spent soy oil. Despite the low biomass productivity, it has favorable characteristics to be used in animal feed supplementation. Spent soy oil was used as a carbon source proven by Bartha respirometer. The strains of R. mucilaginosa UFLA RAS 144 and B. subtilis CCMA 0085 are promising inoculants for oil degradation and can be applied in a waste treatment system.
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Affiliation(s)
- Marcela Magalhães Melo
- Department of Biology, Federal University of Lavras (UFLA), Lavras, MG, 37200-000, Brazil
| | - Kelly Cristina Dos Reis
- Department of Hydraulic and Environmental Engineering, Federal University of Ceará, Fortaleza, CE, 60455-900, Brazil
| | - Josiane Ferreira Pires
- Department of Biology, Federal University of Lavras (UFLA), Lavras, MG, 37200-000, Brazil
| | | | - Rosane Freitas Schwan
- Department of Biology, Federal University of Lavras (UFLA), Lavras, MG, 37200-000, Brazil
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Qiao N, Fan X, Hu S, Zhang X, Wang L, Du Y, Wang L, Zhang X, Yu D. Bacterial cellulose as an oleaginous yeast cell carrier for soybean oil refinery effluent treatment and pyrolysis oil production. Bioprocess Biosyst Eng 2021; 44:661-671. [PMID: 33211199 DOI: 10.1007/s00449-020-02476-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 11/03/2020] [Indexed: 11/25/2022]
Abstract
Bacterial cellulose produced from soybean oil refinery effluent is a good immobilization carrier because of the large pores in its fiber network, its high water-holding capacity, and its good biocompatibility. In this study, it was applied to immobilization of oleaginous yeasts for treating soybean oil refinery effluent. The immobilization percentage reached 50%, and the removal of chemical oxygen demand and oil content reached 92.1% and 93.1%, respectively, during dynamic immobilization using a mass percentage of bacterial cellulose of 30% and an immobilization time of 24 h, which were significantly higher than those of free oleaginous yeasts or yeasts immobilized by bacterial cellulose from rich medium. The immobilized oleaginous yeasts facilitated the recovery of the yeasts and effectively treated three batches of soybean oil refinery effluent. The immobilized oleaginous yeasts recovered after soybean oil refinery effluent treatment were pyrolyzed to produce bio-oil, which contributed to more alkanes and a higher calorific value of bio-oil in the pyrolysis products as compared to those of free oleaginous yeasts. As bacterial cellulose used as an oleaginous yeast cell carrier is produced from soybean oil refinery effluent, no waste of immobilization materials is involved and an efficient waste-into-oil bioprocess is developed.
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Affiliation(s)
- Nan Qiao
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
| | - Xue Fan
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
- School of Resources and Environmental Engineering, Jilin Institute of Chemical Technology, Jilin, 132022, China
| | - Shuang Hu
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Xiuzhen Zhang
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Ling Wang
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Yundi Du
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
| | - Lei Wang
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China
| | - Xiaojun Zhang
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China.
| | - Dayu Yu
- Sci-Tech Center for Clean Conversion and High-Valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, Jilin, China.
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16
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Utilization of wastewater from edible oil industry, turning waste into valuable products: A review. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.02.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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17
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Shi Y, Wu S, Ren H, Jin M, Wang L, Qiao N, Yu D. Computational fluid dynamics and factor analysis of a novel swirling demulsified airlift loop reactor for the treatment of refined soybean oil wastewater. BIORESOURCE TECHNOLOGY 2020; 296:122316. [PMID: 31677403 DOI: 10.1016/j.biortech.2019.122316] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/18/2019] [Accepted: 10/19/2019] [Indexed: 06/10/2023]
Abstract
A swirling demulsified airlift loop reactor (SD-ALR) was developed for the treatment of oily wastewater with yeasts. Computational fluid dynamics simulations showed that the gas holdup and liquid velocity gradient in the SD-ALR were 2.9% and 0.37 m/s higher than those in the traditional airlift loop reactor. The optimization results of the swirling demulsifier showed that the optimal number and elevation angle of the blades were 8 and 45°, and the optimal installation position was 150 mm from the bottom of the draft tube. The results of treating refined soybean oil wastewater in the SD-ALR showed that the wastewater treatment time was decreased by 8 h, and the removals of chemical oxygen demand and oil content increased by 5.10% ± 0.02% and 9.55% ± 0.40%, respectively, compared with those in the traditional airlift loop reactor. A volumetric mass transfer coefficient model was established for SD-ALR and oily wastewater.
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Affiliation(s)
- Yunfen Shi
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Song Wu
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Huimin Ren
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Meitong Jin
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Lei Wang
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China
| | - Nan Qiao
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, China
| | - Dayu Yu
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin 132012, China; School of Chemical Engineering, Northeast Electric Power University, Jilin 132012, China.
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18
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Qiao N, Fan X, Zhang X, Shi Y, Wang L, Yu D. Soybean oil refinery effluent treatment and its utilization for bacterial cellulose production by Gluconacetobacter xylinus. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.105185] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Welz PJ. Edible seed oil waste: status quo and future perspectives. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2019; 80:2107-2116. [PMID: 32198328 DOI: 10.2166/wst.2020.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Large volumes of process water and steam are required for extraction and refining of edible seed oils. Water usage in most industries has decreased over the years as increasing emphasis is being placed on water re-use in modern facilities. However, given the size of the edible seed oil industry globally, there is a lack of current quantitative data about water use and wastewater generation. As the world moves towards a circular economy and water becomes more scarce, it is imperative that the industry players provide meaningful input/output data in order to benchmark and identify areas for waste valorization. This review provides data currently available in the public domain on the specific wastewater intake and wastewater generation by the edible seed oil industry, highlighting the need for further data collection. In addition, wastewater quality and current and future wastewater treatment technologies are discussed, as well as the potential for valorization of solid waste and effluent from the industry, and potential avenues for future research.
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Affiliation(s)
- P J Welz
- Cape Peninsula University of Technology, Bellville Campus, P.O. Box 7535, Cape Town 7530, South Africa E-mail:
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Bessadok B, Santulli A, Breuck T, Sadok S. Species disparity response to mutagenesis of marine yeasts for the potential production of biodiesel. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:129. [PMID: 31139259 PMCID: PMC6530083 DOI: 10.1186/s13068-019-1459-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 05/02/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Among the third-generation biodiesel feed stock, oleaginous marine yeasts are the least studied microorganisms for such purpose. RESULTS Wild strains yeasts were isolated from various Tunisian marine sources including fish waste (Candida tenuis CtTun15, Debaryomyces hansenii DhTun2015, Trichosporon asahii TaTun15 and Yarrowia lipolytica YlTun15) and seawater (Rhodotorula mucilaginosa RmTun15). Following incubation with ethyl methanesulfonate (EMS: 75 mM) for various periods of time (T15, T30, T45, T60 min), the cell viability of these strains responded differentially according to yeast species. For instance, mutated CtTun15 did not survive after 30 min of EMS treatment; higher resistances were observed in DhTun2015 (45 min), in YlTun15, RmTun15 and in TaTun15 (60 min) but with significant decreased cell viabilities (survival rate: 6.02, 3.16, 11.22, 11.58, 7.70%, respectively). For all surviving mutated strains, the optima of biomass and lipid yields were detected after 96 h in YPD culture; but derived from strains submitted to different period of EMS incubation. In most mutated strains, the maximum biomass (BP) and lipid (LP) productivities coincided and were observed after 30 min of EMS incubation. Only CtTun15 showed different optima of BP and LP (after 30 min and 15 min, respectively). The fatty acids (FA) compositions considered essential in the prediction of biodiesel criteria; were highly affected by EMS mutagenesis. Essentially, 30- and 45-min EMS incubation induced the highest levels of PUFA and MUFA in YlTun15, RmTun15 and TaTun15 with non-significant differences in the different times. However, CtTun15 and DhTun2015 mutant strains responded differently, with the highest levels of MUFA observed following 15 and 45 min; and that of PUFA after 30 and 45 min, respectively. CONCLUSION The methyl-esterification of FA from the three mutated yeast strains (30 min-YlTun15, RmTun15 and TaTun15) yielded biodiesel with physical proprieties consistent with the International Standard System. However, investigations are needed for up-scaling biodiesel production.
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Affiliation(s)
- Boutheina Bessadok
- Blue Biotechnology and Aquatics Bioproducts Laboratory (B3Aqua), Institut National des Sciences et Technologies de la Mer – INSTM-Annexe La Goulette, 60 Port de Pêche, 2060 La Goulette, Tunisia
- Institut National Agronomique de Tunisie (INAT), 43 Avenue Charles Nicolle, 1082 Tunis, Tunisia
| | - Andrea Santulli
- Consorzio Universitario della Provincia di Trapani (CUPT), Lungomare Dante Alighieri, 91016 Casa Santa, TP Italy
| | - Thomas Breuck
- Fachgebiet Industrielle Biokatalyse, IBK Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Saloua Sadok
- Blue Biotechnology and Aquatics Bioproducts Laboratory (B3Aqua), Institut National des Sciences et Technologies de la Mer – INSTM-Annexe La Goulette, 60 Port de Pêche, 2060 La Goulette, Tunisia
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Qiao N, Gao M, Zhang X, Du Y, Fan X, Wang L, Liu N, Yu D. Trichosporon fermentans biomass flocculation from soybean oil refinery wastewater using bioflocculant produced from Paecilomyces sp. M2-1. Appl Microbiol Biotechnol 2019; 103:2821-2831. [PMID: 30680435 DOI: 10.1007/s00253-019-09643-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 01/01/2019] [Accepted: 01/06/2019] [Indexed: 12/20/2022]
Abstract
The soybean oil refinery (SOR) wastewater contains a high concentration of chemical oxygen demand (COD) and lipid, so the direct emissions of SOR wastewater will result in environmental pollution and waste of resources. Oleaginous yeast Trichosporon fermentans can consume organic materials in SOR wastewater to synthesize microbial oil, which achieves the purpose of SOR wastewater resource utilization. The effective harvesting technology of oleaginous yeasts can improve the utilization efficiency. In this study, Paecilomyces sp. M2-1 with high flocculating activity was isolated. The flocculants produced by M2-1 (MBF2-1) include 75% (w/w) polysaccharides, rely on cations, and display the flocculation percentage of above 77% in the range of pH 2-11. Especially under alkaline conditions, the flocculation percentage can be kept above 97%. The results of scanning electron microscope observation and zeta potential measurements suggested that the bridging, net trapping, and sweeping were the main flocculation mechanism of MBF2-1. MBF2-1 could flocculate T. fermentans that was used to reduce the organic matter in SOR wastewater and to produce microbial oil. Under the optimum conditions, the flocculation percentage of MBF2-1 against T. fermentans from SOR wastewater can reach 95%. Fatty acid content percent in microbial oil from T. fermentans was not almost affected by flocculation of MBF2-1. Moreover, MBF2-1 can further remove 55% and 53% of COD and oil content in the fermented SOR wastewater, respectively. The properties and high flocculating percentage displayed by MBF2-1 indicated its potential application prospect in oleaginous yeast harvest and food industry wastewater treatment.
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Affiliation(s)
- Nan Qiao
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China.,School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
| | - Mingxing Gao
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
| | - Xiuzhen Zhang
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, China
| | - Yundi Du
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
| | - Xue Fan
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin, 132012, China
| | - Lei Wang
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, China
| | - Na Liu
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China.
| | - Dayu Yu
- Sci-Tech Center for Clean Conversion and High-valued Utilization of Biomass, Jilin Province, Northeast Electric Power University, Jilin, 132012, China.
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