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Idris N, Abduh MY, Noordin NM, Abol-Munafi AB, Koh ICC. Development of sperm cryopreservation protocol for patin buah, Pangasius nasutus. Cryobiology 2024; 115:104878. [PMID: 38431183 DOI: 10.1016/j.cryobiol.2024.104878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/14/2024] [Accepted: 02/29/2024] [Indexed: 03/05/2024]
Abstract
The development of sperm cryopreservation for Pangasius nasutus is necessary in order to serve the growing demand of this species through artificial fertilization and the preservation of valuable strains of male broodstocks. In the present study, the basic protocol of sperm cryopreservation for P. nasutus was established by identifying the optimal conditions for optimum cryoprotectant, toxicity of cryoprotectants, extenders, freezing condition and dilution ratio. Methanol (MeOH) at 10% concentration had the best post-thaw motility (26.3 ± 0.9%) and curvilinear velocity (VCL) compared to dimethyl acetamide and dimethyl sulfoxide. MeOH was the least toxic cryoprotectant; sperm suspended in 5 and 10% MeOH maintained motility up to 50 min. No significant differences were detected between the three types of extenders tested (0.9% sodium chloride, Calcium-free Hanks' Balance salt solution and ringer solution). P. nasutus sperm had a narrow range of optimal cooling rate. Significantly higher post-thaw motility was identified when cooling at 9.23 °C min-1, obtained by freezing at height of 14 cm above liquid nitrogen vapor for 7 min, showing lower cooling rate is suitable for this species. However, when cooling below and above the optimal cooling rate, post-thaw motility dropped drastically. There were no significant differences among the dilution ratios investigated, indicating the volume of cryodiluent at all tested ratios (1:9, 1:19 and 1:49) was sufficient for the protection of cells during the cryopreservation process. The development of the protocol for cryopreserved P. nasutus sperm will assist artificial seed production and provide an important tool for genetic and breeding research.
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Affiliation(s)
- Nurizzati Idris
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21300, Kuala Nerus, Terengganu, Malaysia
| | - Muhammad Yazed Abduh
- Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Noordiyana Mat Noordin
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21300, Kuala Nerus, Terengganu, Malaysia; Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Ambok Bolong Abol-Munafi
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21300, Kuala Nerus, Terengganu, Malaysia
| | - Ivan Chong Chu Koh
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21300, Kuala Nerus, Terengganu, Malaysia; Faculty of Fisheries and Food Sciences, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia.
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Zhao J, Shi L, Shi J, Li H, Lang D, Wei Z, Li S, Pan B. Distribution of environmentally persistent free radicals in size-segregated PMs emitted from residential biomass fuel combustion. J Hazard Mater 2023; 449:130956. [PMID: 36812726 DOI: 10.1016/j.jhazmat.2023.130956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/22/2023] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
Environmentally persistent free radicals (EPFRs) are considered as an emerging pollutant due to their potential environmental risks, but the distribution characteristics of particulate matters (PMs)-EPFRs from residential combustion source are poorly understood. In this study, biomass (corn straw, rice straw, pine and jujube wood) combustion was studied in lab-controlled experiments. More than 80% of PM-EPFRs were distributed in PMs with aerodynamic diameter (dae) ≤ 2.1 µm, and their concentration in fine PMs was about 10 times that in coarse PM (2.1 µm ≤ dae ≤ 10 µm). The detected EPFRs were carbon-centered free radicals adjacent to oxygen atoms or a mixture of oxygen- and carbon-centered radicals. The concentrations of EPFRs in coarse and fine PMs were positively correlated with char-EC, but the EPFRs in fine PMs exhibited a negative correlation with soot-EC (p < 0.05). The increase of PM-EPFRs signals with the increased dilution ratio during pine wood combustion was more significant than that from rice straw, which may be resulted from the interactions between the condensable volatiles and the transition metals. Our study provides useful information for better understanding the formation of combustion-derived PM-EPFRs, and will be instructive for its purposeful emissions control.
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Affiliation(s)
- Jinfeng Zhao
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Lin Shi
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China; Shandong Provincial Key Laboratory of Water and Soil Conservation and Environmental Protection, College of Resources and Environment, Linyi University, Linyi 276005, China
| | - Jianwu Shi
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Hao Li
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Di Lang
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Zhuo Wei
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Shunling Li
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China
| | - Bo Pan
- Yunnan Provincial Key Laboratory of Soil Carbon Sequestration and Pollution Control, Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming 650500, Yunnan, China.
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Wang H, Wu B, Jiang N, Liu J, Zhao Y, Xu J, Wang H. The effects of influent chemical oxygen demand and strigolactone analog concentration on integral biogas upgrading and pollutants removal from piggery wastewater by different microalgae-based technologies. Bioresour Technol 2023; 370:128483. [PMID: 36513303 DOI: 10.1016/j.biortech.2022.128483] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 06/17/2023]
Abstract
Microalgae-based technologies are promising strategies for efficient wastewater treatment and biogas upgrading. In this study, three types of microalga-fungi/bacteria symbiotic systems stimulated with the strigolactone analog (GR24) were used to simultaneously remove nutrients from treated piggery wastewater and CO2 from biogas. The effects of initial concentrations of chemical oxygen demand (COD) and GR24 on nutrient removal and biogas upgrading were investigated. When the initial COD concentration was 1200 mg/L, the Chlorella vulgaris-Ganoderma lucidum-endophytic bacteria co-cultivation systems achieved the best photosynthetic performance and microalgae growth. Moreover, under the appropriate COD concentration (1200 mg/L), the highest nutrient/CO2 removal efficiencies were obtained. In addition, 10-9 M GR24 significantly accelerated nutrient/CO2 removal efficiencies. These findings provide a theoretical basis for scale-up experiments using microalgae-based technologies.
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Affiliation(s)
- Heyuan Wang
- Department of Endocrinology and Metabolism, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Bing Wu
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130000, China
| | - Nan Jiang
- Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changchun, Jilin Province 130000, China
| | - Jinhua Liu
- Changchun Customs Technology Center, Changchun 130062, China
| | - Yongjun Zhao
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Jie Xu
- College of Biological, Chemical Science and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Haotian Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China.
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Wang A, Guo X, Morimoto A, Maetani K, Tanoue R, Tong-U-Dom S, Buranapratheprat A. Transport and dilution of fluvial antibiotic in the Upper Gulf of Thailand. Environ Pollut 2021; 288:117779. [PMID: 34284203 DOI: 10.1016/j.envpol.2021.117779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 07/01/2021] [Accepted: 07/10/2021] [Indexed: 06/13/2023]
Abstract
A three-dimensional hydrodynamic-antibiotic model is developed to investigate the transport and dilution of sulfamethoxazole (SMX) in the Upper Gulf of Thailand (UGoT). The simulation produced a spatially averaged annual mean SMX concentration of 0.58 μgm-3, which varied slightly between seasons assuming a temporally constant river SMX loading observed in August. In contrast, the horizontal distribution of SMX concentrations strongly varied with season because of the changing residual currents. In addition, SMX is diluted to concentrations lower than 10% of those in river waters a short distance offshore of the estuaries. To better understand this behavior, we examined the relationship between salinity and SMX concentrations in the UGoT. The annual budget demonstrates that 98% of SMX in the UGoT is removed by natural decomposition. As the concentrations of fluvial pollutants in the UGoT depend on their river loading and decomposition rates, functions were derived to predict pollutant concentrations and flushing times based on the river input flux and half-life.
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Affiliation(s)
- Aobo Wang
- Graduate School of Science and Engineering, Ehime University, Matsuyama, Japan
| | - Xinyu Guo
- Center for Marine Environmental Studies (CMES), Ehime University, Japan.
| | - Akihiko Morimoto
- Center for Marine Environmental Studies (CMES), Ehime University, Japan
| | - Kana Maetani
- Graduate School of Science and Engineering, Ehime University, Matsuyama, Japan
| | - Rumi Tanoue
- Center for Marine Environmental Studies (CMES), Ehime University, Japan
| | - Siraporn Tong-U-Dom
- Department of Aquatic Science, Faculty of Science, Burapha University, Thailand
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Li Y, Zhang Z, Jiang D, Jing Y, Lu C, Zhang H, Zhang Q. Continuous dark and photo biohydrogen production in a baffled bioreactor and electrons distribution analysis. Bioresour Technol 2021; 337:125440. [PMID: 34166932 DOI: 10.1016/j.biortech.2021.125440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/15/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
This work studied the sequential hydrogen production by dark and photo-fermentation (HPDPF) in continuous baffled bioreactors. Taken enzymatic hydrolysate of corn stover as initial carbon source, the influence of hydraulic retention time (HRT) of dark fermentation (DF) and the dilution ratio (DR) of dark fermentation effluents (DFEs) on the hydrogen production performance of the combined fermentation system and electron distribution were investigated. For DF unit, the highest hydrogen production rate (HPR) of 5.24 L/(L·d) was detected at HRT of 18 h, however, the maximum HPR of 4.60 L/(L·d) was obtained from DFEs with HRT of 12 h and DR of 1:0.5 during photo fermentation unit, meanwhile, the electrons in substrate partitioning to H2 reached the maximum value of 35.69%. In terms of hydrogen yield, the optimum operating conditions of the combined system were HRT of 12 h (DF) and DR of 1:0.5(DFEs), in which the hydrogen yield reached 12.73 L/d.
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Affiliation(s)
- Yameng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
| | - Zhiping Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Danping Jiang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China
| | - Yanyan Jing
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Chaoyang Lu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Huan Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Zhengzhou 450002, China
| | - Quanguo Zhang
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy, MOA of China, Henan Agricultural University, Zhengzhou 450002, China; Institute of Agricultural Engineering, Huanghe S & T University, Zhengzhou 450006, China.
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Li C, Ning Y, Yan T, Zheng W. Studies on nucleation and crystal growth kinetics of ferrous oxalate. Heliyon 2019; 5:e02758. [PMID: 31768433 PMCID: PMC6872798 DOI: 10.1016/j.heliyon.2019.e02758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 05/22/2019] [Accepted: 10/28/2019] [Indexed: 10/26/2022] Open
Abstract
An improved apparatus is used for nucleation measurements according to Nielsen's method. A new method is proposed to calculate the dilution ratio N of the reaction solution during nucleation rate determination. With the rule, when the initial apparent supersaturation ratio S'=f(N) in the dilution tank is controlled from 1.3 to 3.0, crystal nucleus dissolving and secondary nucleation can be avoided satisfactorily. Experiments are realized by varying the supersaturation ratio from 15.6 to 93.3 and temperature from 15 °C to 50 °C. Ferrous oxalate is precipitated by mixing equal volumes of ferrous sulfate and oxalic acid solution. The experimental results showed that the nucleation rate of ferrous oxalate in the supersaturation range above is characterized by the primary homogeneous mechanism and can be expressed by the equation R N = A N exp(-E a /RT)exp[-B/(ln S) 2 ], where A N = 3.9×10 13 m -3 s -1 , E a = 33.9 kJ mol-1, and B =13.7. The crystal growth rate can be expressed by equation G(t)=k g exp(-E' a /RT) (c-c eq ) g , where k g = 3.6 × 10 13 m/s, E' a = 58.0 kJ mol-1 , and g = 2.4.
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Affiliation(s)
- Chuanbo Li
- China Institute of Atomic Energy, P.O.Box 275-26, Beijing, 102413, China
| | - Yongzhi Ning
- China Institute of Atomic Energy, P.O.Box 275-26, Beijing, 102413, China
| | - Taihong Yan
- China Institute of Atomic Energy, P.O.Box 275-26, Beijing, 102413, China
| | - Weifang Zheng
- China Institute of Atomic Energy, P.O.Box 275-26, Beijing, 102413, China
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Wu M, Shu G, Chen R, Tian H, Wang X, Wang Y. A new model based on adiabatic flame temperature for evaluation of the upper flammable limit of alkane-air-CO 2 mixtures. J Hazard Mater 2018; 344:450-457. [PMID: 29128824 DOI: 10.1016/j.jhazmat.2017.10.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 10/02/2017] [Accepted: 10/16/2017] [Indexed: 06/07/2023]
Abstract
For security issue of alkane used in Organic Rankine Cycle, a new model to evaluate the upper flammability limits for mixtures of alkanes, carbon dioxide and air has been proposed in present study. The linear relationship was found at upper flammability limits between molar fraction of diluent in alkane-CO2 mixture and calculated adiabatic flame temperature. The prediction ability of the variable calculated adiabatic flame temperature model that incorporated the linear relationship above is greatly better than the models that adopted the fixed calculated adiabatic flame temperature at upper flammability limit. The average relative differences between results predicted by the new model and observed values are less than 3.51% for upper flammability limit evaluation. In order to enhance persuasion of the new model, the observed values of n-butane-CO2 and isopentane-CO2 mixtures measured in this study were used to confirm the validity of the new model. The predicted results indicated that the new model possesses the capacity of practical application and can adequately provide safe non-flammable ranges for alkanes diluted with carbon dioxide.
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Affiliation(s)
- Mingqiang Wu
- State Key Laboratory of Engines, Tianjin University, People's Republic of China
| | - Gequn Shu
- State Key Laboratory of Engines, Tianjin University, People's Republic of China
| | - Rui Chen
- State Key Laboratory of Engines, Tianjin University, People's Republic of China
| | - Hua Tian
- State Key Laboratory of Engines, Tianjin University, People's Republic of China.
| | - Xueying Wang
- State Key Laboratory of Engines, Tianjin University, People's Republic of China
| | - Yue Wang
- State Key Laboratory of Engines, Tianjin University, People's Republic of China
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