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Zhao ZQ, Yang J, Chen HY, Wang WF, Lian XJ, Xie XJ, Wang M, Yu KF, Zheng HB. Construction and application of highly efficient waste cooking oil degrading bacteria consortium in oily wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:125677-125688. [PMID: 38001293 DOI: 10.1007/s11356-023-31107-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
The treatment of cooking oil wastewater is an urgent issue need to be solved. We aimed to screen for efficient oil-degrading bacteria and develop a new microbial agent for degrading waste cooking oil in oily wastewater. Three extremely effective oil-degrading bacteria, known as YZQ-1, YZQ-3, and YZQ-4, were found by the enrichment and acclimation of samples from various sources and separation using oil degradation plates. The 16S rRNA sequencing analysis and phylogenetic tree construction showed that the three strains were Bacillus tropicus, Pseudomonas multiresinivorans, and Raoultella terrigena. Under optimal degradation conditions, the maximal degradation rates were 67.30 ± 3.69%, 89.65 ± 1.08%, and 79.60 ± 5.30%, respectively, for YZQ-1, YZQ-3, and YZQ-4. Lipase activity was highest for YZQ-3, reaching 94.82 ± 12.89 U/L. The best bacterial alliance was obtained by adding equal numbers of microbial cells from the three strains. Moreover, when this bacterial alliance was applied to oily wastewater, the degradation rate of waste cooking oil was 61.13 ± 7.30% (3.67% ± 2.13% in the control group), and COD removal was 62.4% ± 5.65% (55.60% ± 0.71% in the control group) in 72 h. Microbial community analysis results showed YZQ-1 and YZQ-3 were adaptable to wastewater and could coexist with local bacteria, whereas YZQ-4 could not survive in wastewater. Therefore, the combination of YZQ-1 and YZQ-3 can efficiently degrade oil and shows great potential for oily wastewater treatment.
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Affiliation(s)
- Zhuo-Qun Zhao
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Jian Yang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Heng-Yuan Chen
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Wen-Fan Wang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xiao-Jian Lian
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xiao-Jie Xie
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Min Wang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Ke-Fei Yu
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China
| | - Hua-Bao Zheng
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, College of Environmental and Resources Sciences, Zhejiang A&F University, Hangzhou, 311300, China.
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Zhang X, Zhang D, Chu S, Khalid M, Wang R, Chi Y, Duan X, Yang X, Zhou P. Employing salt-tolerant bacteria Serratia marcescens subsp. SLS for biodegradation of oily kitchen waste. CHEMOSPHERE 2023; 329:138655. [PMID: 37059197 DOI: 10.1016/j.chemosphere.2023.138655] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 02/14/2023] [Accepted: 04/08/2023] [Indexed: 05/03/2023]
Abstract
The high oil and salt content of kitchen waste (KW) inhibit bioconversion and humus production. To efficiently degrade oily kitchen waste (OKW), a halotolerant bacterial strain, Serratia marcescens subsp. SLS which could transform various animal fats and vegetable oils, was isolated from KW compost. Its identification, phylogenetic analysis, lipase activity assays, and oil degradation in liquid medium were assessed, and then it was employed to carry out a simulated OKW composting experiment. In liquid medium, the 24 h degradation rate of mixed oils (soybean oil: peanut oil: olive oil: lard = 1:1:1:1, v/v/v/v) was up to 87.37% at 30 °C, pH 7.0, 280 rpm, 2% oil concentration and 3% NaCl concentration. The ultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS) method demonstrated that the mechanism of SLS strain metabolizing long-chain triglycerides (TAGs) (C53-C60), especially the biodegradation of TAG (C18:3/C18:3/C18:3) by the strain can reach more than 90%. Degradation of 5, 10, 15% concentrations of total mixed oil were also calculated to be 64.57, 71.25, 67.99% respectively after a simulated composting duration of 15 days. The results suggest that the isolated strain of S. marcescens subsp. SLS is suitable for OKW bioremediation in high NaCl concentration within a reasonably short period of time. The findings introduced a salt-tolerant and oil-degrading bacteria, providing insights into the mechanism of oil biodegradation and offering new avenues of study for OKW compost and oily wastewater treatment.
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Affiliation(s)
- Xia Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, 200240, China
| | - Dan Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, 200240, China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai, 200240, China; Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shaohua Chu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, 200240, China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai, 200240, China; Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Muhammad Khalid
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Renyuan Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, 200240, China
| | - Yaowei Chi
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, 200240, China
| | - Xiangyu Duan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, 200240, China
| | - Xijia Yang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, 200240, China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai, 200240, China; Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Pei Zhou
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, Shanghai, 200240, China; Shanghai Yangtze River Delta Eco-Environmental Change and Management Observation and Research Station, Ministry of Science and Technology, Ministry of Education, Shanghai, 200240, China; Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai, 200240, China.
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Naghizadeh M, Karajibani M, Fanaei H, Montazerifar F, Dashipour A. Effect of synbiotic supplementation on asprosin level in high fat diet-induced metabolic disorder in pregnant rats. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2021. [DOI: 10.3233/mnm-210595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Synbiotic supplementation can improve metabolic disorders. The aim of this study was to assess the impact of synbiotic supplementation on the levels of asprosin, lipid profile, glucose, and insulin resistance in pregnant rats fed a high-fat diet (HFD). Rats were divided into three groups: control group (fed base chow), HFD group, and HFD + synbiotic group. Levels of blood glucose, total cholesterol, triglyceride (TG), low-density lipoprotein (LDL), high-density lipoprotein (HDL), insulin, and asprosin levels were measured. Birth weight of offspring in the HFD + synbiotic group was significantly lower than in the HFD group. Similarly, serum asprosin, insulin, insulin resistance, TG and total cholesterol levels in the HFD + symbiotic group were significantly lower than in the HFD group. Asprosin levels had a significant and positive correlation between food intake in the first ten days of the experiment and gestation period, fasting blood sugar (FBS), TG, and homeostatic model assessment (HOMA) index. Moreover, asprosin levels had a significant and negative correlation with HDL and insulin levels. Results showed, synbiotic supplementation has beneficial effects on obese animals and improves weight gain during pregnancy, pup birth weight, FBS, insulin resistance and lipid profile. These advantages of synbiotic supplementation could be mediated by reducing serum asprosin levels.
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Affiliation(s)
- Mehrdad Naghizadeh
- Department of Nutrition, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mansour Karajibani
- Department of Nutrition, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Health Promotion Research Center, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamed Fanaei
- Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
- Department of Physiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Farzaneh Montazerifar
- Health Promotion Research Center, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Alireza Dashipour
- Department of Food Science, School of medicine, Zahedan University of Medical Sciences, Zahedan, Iran
- Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
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Ke X, Hua X, Sun JC, Zheng RC, Zheng YG. Synergetic degradation of waste oil by constructed bacterial consortium for rapid in-situ reduction of kitchen waste. J Biosci Bioeng 2021; 131:412-419. [PMID: 33478805 DOI: 10.1016/j.jbiosc.2020.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 12/10/2020] [Accepted: 12/10/2020] [Indexed: 12/11/2022]
Abstract
Traditional composting of kitchen waste (KW) is cost- and time-intensive, requiring procedures of collection, transport and composing. Consequently, the direct in-situ reduction of KW via treatment at the point of collection is gaining increasing attention. However, high oil content of KW causes separation and degradation issues due to its low bioavailability and the hydrophobicity, and therefore greatly limiting the direct application of in-situ methods for mass reduction. To overcome this, a bacterial consortium of Pseudomonas putida and Bacillus amyloliquefaciens was constructed, which exhibited a synergistically improved oil degrading ability for lipase-catalyzed hydrolysis, fatty acids β-oxidation, biosurfactant production and surface tension reduction, and the degradation ratio reached 58.96% within 48 h when the initial KW oil concentration was 8.0%. The in-situ aerobic digestion of KW was further performed in a 20-L stirred-tank reactor, the content of KW oil (34.72 ± 2.05% of total solids, w/w) was rapidly decreased with a simultaneous increase in both lipase activity and in microbial cell numbers, and the degradation ratio reached 57.38%. The synergetic effect of the two strains including B. amyloliquefaciens and P. putida promoted the decomposition process of KW oil, which also paved the way for an efficient degradation strategy to support the application potential of in-situ microbial reduction of KW.
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Affiliation(s)
- Xia Ke
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Xia Hua
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Jia-Cheng Sun
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Ren-Chao Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China.
| | - Yu-Guo Zheng
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China; Engineering Research Center of Bioconversion and Biopurification of Ministry of Education, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
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Gao LL, Lu YC, Zhang JL, Li J, Zhang JD. Biotreatment of restaurant wastewater with an oily high concentration by newly isolated bacteria from oily sludge. World J Microbiol Biotechnol 2019; 35:179. [DOI: 10.1007/s11274-019-2760-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 11/05/2019] [Indexed: 11/24/2022]
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The Effects of Synbiotic Supplementation on Metabolic Status in Women With Polycystic Ovary Syndrome: a Randomized Double-Blind Clinical Trial. Probiotics Antimicrob Proteins 2018. [DOI: 10.1007/s12602-018-9405-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Nzila A, Thukair A, Sankara S, Abdur Razzak S. Characterization of aerobic oil and grease-degrading bacteria in wastewater. ENVIRONMENTAL TECHNOLOGY 2017; 38:661-670. [PMID: 27426954 DOI: 10.1080/09593330.2016.1207712] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A bacterial consortium that degrades cooking oil (CO) has been isolated in wastewater (WW) samples, by enrichment in olive CO. This consortium could degrade 90% of CO within 7-9 days (from an initial 1% [w/v]), and it is more active at alkaline conditions. The 16S ribonucleic acid (RNA) gene analysis showed that it contains five bacterium species: Stenotrophomonas rhizophila, Sphingobacterium sp., Pseudomonas libanensis, Pseudomonas poae and Pseudomonas aeruginosa. This consortium can degrade the free fatty acids (FFA): palmitic, stearic, oleic, linoleic and linolenic acids; glycerol, glucose and amylose; and albumin, but could not efficiently degrade carboxymethyl-cellulose. Each strain could also degrade CO and FFAs. The level of bacterial crude-activity of extracellular lipases was found to be between 0.2 and 4U/ml. Using synthetic WW, the consortium could reduce 80% of the chemical oxygen demand [from 10550 ± 2828 mg/l], 80% of nitrogen (from 410 ± 78 mgl/l) and 57% of phosphorus (from 93 ± 25 mg/l). Thus, this consortium can be utilized in the removal of CO from WW.
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Affiliation(s)
- Alexis Nzila
- a Departments of Life Sciences , King Fahd University of Petroleum and Minerals , Dhahran , Saudi Arabia
| | - Assad Thukair
- a Departments of Life Sciences , King Fahd University of Petroleum and Minerals , Dhahran , Saudi Arabia
| | - Saravanan Sankara
- a Departments of Life Sciences , King Fahd University of Petroleum and Minerals , Dhahran , Saudi Arabia
| | - Shaikh Abdur Razzak
- b Department of Chemical Engineering, King Fahd University of Petroleum and Minerals , Dhahran , Saudi Arabia
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The effects of synbiotic supplementation on markers of insulin metabolism and lipid profiles in gestational diabetes: a randomised, double-blind, placebo-controlled trial. Br J Nutr 2016; 116:1394-1401. [PMID: 27681077 DOI: 10.1017/s0007114516003457] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
To the best of our knowledge, data on the effects of synbiotic supplementation on markers of insulin metabolism and lipid concentrations in patients with gestational diabetes mellitus (GDM) are scarce. The aim of the current study was to determine the effects of synbiotic supplementation on markers of insulin metabolism and lipid profiles in GDM patients. In total, seventy patients with GDM aged 18-40 years were assigned to two groups - the synbiotic group (n 35) and the placebo group (n 35) - in this randomised, double-blind, placebo-controlled trial. Patients in the synbiotic group received a daily capsule that contained three viable and freeze-dried strains: Lactobacillus acidophilus, Lactobacillus casei and Bifidobacterium bifidum (2×109 colony-forming units/g each) plus 800 mg inulin for 6 weeks. Fasting blood samples were collected at the beginning and week 6 to quantify related markers. After 6 weeks of intervention, compared with the placebo, synbiotic supplementation led to a significant decrease in serum insulin levels (-1·5 (sd 5·9) v. +4·8 (sd 11·5) µIU/ml, P=0·005), homoeostatic model assessment for insulin resistance (-0·4 (sd 1·3) v. +1·1 (sd 2·7), P=0·003) and homoeostatic model assessment for β cell function (-5·1 (sd 24·2) v. +18·9 (sd 45·6), P=0·008) and a significant increase in quantitative insulin sensitivity check index (+0·01 (sd 0·01) v. -0·007 (sd 0·02), P=0·02). In addition, synbiotic intake significantly decreased serum TAG (-14·8 (sd 56·5) v. +30·4 (sd 37·8) mg/dl, P<0·001) and VLDL-cholesterol concentrations (-3·0 (sd 11·3) v. +6·1 (sd 7·6) mg/dl, P<0·001) compared with the placebo. Overall, the results of this study demonstrate that taking synbiotic supplements for 6 weeks among patients with GDM had beneficial effects on markers of insulin metabolism, TAG and VLDL-cholesterol concentrations.
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Ghobadi N, Ogino C, Yamabe K, Ohmura N. Characterizations of the submerged fermentation of Aspergillus oryzae using a Fullzone impeller in a stirred tank bioreactor. J Biosci Bioeng 2016; 123:101-108. [PMID: 27475924 DOI: 10.1016/j.jbiosc.2016.07.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 06/07/2016] [Accepted: 07/01/2016] [Indexed: 11/29/2022]
Abstract
A Fullzone (FZ) impeller was used in the first study of the characteristics involved in the fermentation of Aspergillus oryzae. Both the experimental and simulation results of this study revealed novel findings into the positive relationship between the global-axial mixing patterns of a FZ impeller and fermentation efficiency. The mixing results when using the FZ impeller compared with a double Rushton turbine (DRT) impeller indicated that the culture mixed by the FZ resulted in a more homogeneous medium with higher values for oxygen mass transfer, cell growth rate, and alpha amylase activity. The simulation of fluid flow was done in a laminar regime using a two-fluid model. According to the simulation results, the maximum shear stress when using the DRT was higher than that with the FZ at the same power input (Pin). A high degree of local shear stress and the shear rate near the turbine blade of the DRT resulted in cell damage and a reduction in the enzyme activity, biomass, pellet diameter, and dissolved oxygen concentration. Calculations using the Brown equation showed that the maximum and average shear rates during mixing with the FZ impeller were lower than that when using the DRT. Therefore, the use of an FZ impeller, particularly at low Pin, enhanced the cultivation of A. oryzae.
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Affiliation(s)
- Narges Ghobadi
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe 657-8501, Japan
| | - Chiaki Ogino
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe 657-8501, Japan
| | - Kaoru Yamabe
- Division of Process Equipment, Kobelco Eco-Solutions, Co., Ltd., 19 Nijima, Harimacho, Kakogun, Hyogo 675-0155, Japan
| | - Naoto Ohmura
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe 657-8501, Japan.
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Ghobadi N, Ogino C, Ogawa T, Ohmura N. Using a flexible shaft agitator to enhance the rheology of a complex fungal fermentation culture. Bioprocess Biosyst Eng 2016; 39:1793-801. [PMID: 27438373 DOI: 10.1007/s00449-016-1653-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 07/12/2016] [Indexed: 10/21/2022]
Abstract
The rheology behavior of biological fluids particularly when the viscosity is high and rheology is complex, is an important issue to understand, particularly for studies in mass-transfer and for solving technical problems with mixing in stirred bioreactors. In this paper, the use of a Swingstir(®) impeller during the fermentation of Aspergillus oryzae resulted in decreases from the parameters of a power-law model, in viscosity and in the thixotropic behavior of a cultivation broth. The results showed that both the K L a and the alpha amylase activity were improved when using the Swingstir(®) in comparison with Fullzone(®) impeller (FZ) at the same level of energy consumption. Increasing the pellet porosity during mixing via the Swingstir(®) resulted in increases in oxygen mass transfer and the average shear stress.
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Affiliation(s)
- Narges Ghobadi
- Department of Chemical Science and Engineering, Graduate School of Engineering, 1-1 Rokkodaicho, Nada-ku, Kobe, 657-8501, Japan.
| | - Chiaki Ogino
- Department of Chemical Science and Engineering, Graduate School of Engineering, 1-1 Rokkodaicho, Nada-ku, Kobe, 657-8501, Japan
| | - Tomohiro Ogawa
- Division of Process Equipment, Kobelco Eco-Solutions, Co., LTD, 19, Nijima, Harimacho, Kakogun, Hyogo, 675-0155, Japan
| | - Naoto Ohmura
- Department of Chemical Science and Engineering, Graduate School of Engineering, 1-1 Rokkodaicho, Nada-ku, Kobe, 657-8501, Japan
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Tanyol M, Uslu G, Yönten V. Optimization of lipase production on agro-industrial residue medium by Pseudomonas fluorescens (NRLL B-2641) using response surface methodology. BIOTECHNOL BIOTEC EQ 2015; 29:64-71. [PMID: 26740789 PMCID: PMC4684071 DOI: 10.1080/13102818.2014.991635] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 10/11/2014] [Indexed: 11/03/2022] Open
Abstract
The aim of our research was to explore the most cost-efficient and optimal medium composition for the production of lipase from Pseudomonas fluorescens (NRLL B-2641) culture grown on sunflower oil cake (SuOC) by applying response surface methodology (RSM). The oil cake was used instead of carbon sources. Peptone, ammonium sulphate and the carbon source (SuOC) were the most important factors as it is obligatory for microbial growth. Subsequently, the optimum values for the carbon source, peptone and ammonium sulphate were found to be 11.10% (w/v), 1.18% (w/v) and 0.83% (w/v), respectively. Experiments carried out under optimum conditions revealed a maximum lipase activity of 10.8 U mL-1, which was achieved after 48 h of fermentation. The obtained results were finally verified with batch experiments carried out under the optimum conditions evaluated and it was demonstrated that the SuOC from agro-industrial residue as substrates can be used as an inexpensive base (carbon source) for the production of lipase by P. fluorescens (NRLL B-2641).
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Affiliation(s)
- Mehtap Tanyol
- Department of Environmental Engineering, Tunceli University, Tunceli, Turkey
| | - Gülşad Uslu
- Department of Environmental Engineering, Firat University, Elazig, Turkey
| | - Vahap Yönten
- The Technology of Chemistry, Vocational School, Tunceli University, Tunceli, Turkey
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Rhodococcus UKMP-5M, an endogenous lipase producing actinomycete from Peninsular Malaysia. Biologia (Bratisl) 2013. [DOI: 10.2478/s11756-013-0308-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Sugimori D, Watanabe M, Utsue T. Isolation and lipid degradation profile of Raoultella planticola strain 232-2 capable of efficiently catabolizing edible oils under acidic conditions. Appl Microbiol Biotechnol 2012; 97:871-80. [DOI: 10.1007/s00253-012-3982-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 02/16/2012] [Accepted: 02/16/2012] [Indexed: 11/30/2022]
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14
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A study of the efficiency of edible oils degraded in alkaline conditions by Pseudomonas aeruginosa SS-219 and Acinetobacter sp. SS-192 bacteria isolated from Japanese soil. World J Microbiol Biotechnol 2011; 28:841-8. [DOI: 10.1007/s11274-011-0880-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2011] [Accepted: 09/05/2011] [Indexed: 10/17/2022]
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15
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Construction of a whole-cell catalyst displaying a fungal lipase for effective treatment of oily wastewaters. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.04.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Current awareness on yeast. Yeast 2009. [DOI: 10.1002/yea.1625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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17
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Cloning, characterization, and expression of a novel secretory lipase-like gene from Clonorchis sinensis. Parasitol Res 2009; 105:1661-6. [DOI: 10.1007/s00436-009-1607-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2009] [Accepted: 08/21/2009] [Indexed: 11/26/2022]
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