The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation
The widespread use of biogas slurry could potentially raise the environmental risk of antibiotics. Dissolved organic matter (DOM), as the most active part of biogas slurry, was able to interact with antibiotics and play a crucial role in the structure and function of soil and aquatic ecosystems. The...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Ecotoxicology and Environmental Safety |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651324000289 |
| _version_ | 1797328842463903744 |
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| author | Jinluo Fan Chengjun Ge Ailing Li Guoliang Ren Hui Deng Dongming Wu Jiwei Luo Yanhu He Yuanyuan Zhao Jiatong Li Dan Feng Huamei Yu |
| author_facet | Jinluo Fan Chengjun Ge Ailing Li Guoliang Ren Hui Deng Dongming Wu Jiwei Luo Yanhu He Yuanyuan Zhao Jiatong Li Dan Feng Huamei Yu |
| author_sort | Jinluo Fan |
| collection | DOAJ |
| description | The widespread use of biogas slurry could potentially raise the environmental risk of antibiotics. Dissolved organic matter (DOM), as the most active part of biogas slurry, was able to interact with antibiotics and play a crucial role in the structure and function of soil and aquatic ecosystems. The recent shifts in global climate patterns have garnered significant attention due to their substantial impact on temperature, thereby exerting a direct influence on the characteristics of DOM and subsequently on the environmental behavior of antibiotics. However, there is limited research concerning the impact of temperature on the binding of DOM and antibiotics. Thus, this study aimed to explore the temperature-dependent structural transformation and driving factors of biogas slurry-derived DOM (BSDOM). Additionally, the binding characteristics between BSDOM and the commonly used antibiotic norfloxacin (NOR) at different temperatures were studied by using multi spectroscopic methods and two-dimensional correlation spectroscopy (2D-COS) analysis. The results suggested that the temperature-dependent structural transformation of BSDOM was reversible, with a slight lag in the transition temperature under cooling (13 °C for heating and 17 °C for cooling). Heating promoted the conversion of protein-like to humic-like substances while cooling favored the decomposition of humic-like substances. BSDOM and NOR were static quenching, with oxygen-containing functional groups such as C-O and -OH playing an important role. Temperature influenced the order of binding, the activity of the protein fraction, and its associated functional groups. At temperatures of 25 °C and 40 °C, the fluorescent components were observed to exhibit consistent binding preferences, whereby the humic-like component demonstrated a greater affinity for NOR compared to the protein-like component. However, the functional group binding order exhibited an opposite trend. At 10 °C, a new protein-like component appeared and bound preferentially to NOR, when no C-O stretch corresponding to the amide was observed. The finding will contribute to a comprehensive understanding of the interaction mechanisms between DOM and antibiotics under climate change, as well as providing a theoretical basis to reduce the environmental risks of biogas slurry and antibiotics. |
| first_indexed | 2024-03-08T06:56:46Z |
| format | Article |
| id | doaj.art-4a86d71076114b88b1333495acb5df67 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-03-08T06:56:46Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-4a86d71076114b88b1333495acb5df672024-02-03T06:34:25ZengElsevierEcotoxicology and Environmental Safety0147-65132024-02-01271115953The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuationJinluo Fan0Chengjun Ge1Ailing Li2Guoliang Ren3Hui Deng4Dongming Wu5Jiwei Luo6Yanhu He7Yuanyuan Zhao8Jiatong Li9Dan Feng10Huamei Yu11Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaKey Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaKey Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaKey Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaKey Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaHainan Key Laboratory of Tropical Eco-circuling Agriculture, Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; Ministry Key Laboratory of Low-carbon Green Agriculture in Tropical region of China, Institute of Environment and Plant Protection, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, ChinaKey Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaInstitute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Guangzhou 510006, ChinaKey Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaKey Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaKey Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, China; Corresponding author at: Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China.Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; Center for Eco-Environment Restoration Engineering of Hainan Province, Hainan University, Haikou 570228, China; Key Laboratory of Environmental Toxicology, Hainan University, Ministry of Education, Haikou 570228, ChinaThe widespread use of biogas slurry could potentially raise the environmental risk of antibiotics. Dissolved organic matter (DOM), as the most active part of biogas slurry, was able to interact with antibiotics and play a crucial role in the structure and function of soil and aquatic ecosystems. The recent shifts in global climate patterns have garnered significant attention due to their substantial impact on temperature, thereby exerting a direct influence on the characteristics of DOM and subsequently on the environmental behavior of antibiotics. However, there is limited research concerning the impact of temperature on the binding of DOM and antibiotics. Thus, this study aimed to explore the temperature-dependent structural transformation and driving factors of biogas slurry-derived DOM (BSDOM). Additionally, the binding characteristics between BSDOM and the commonly used antibiotic norfloxacin (NOR) at different temperatures were studied by using multi spectroscopic methods and two-dimensional correlation spectroscopy (2D-COS) analysis. The results suggested that the temperature-dependent structural transformation of BSDOM was reversible, with a slight lag in the transition temperature under cooling (13 °C for heating and 17 °C for cooling). Heating promoted the conversion of protein-like to humic-like substances while cooling favored the decomposition of humic-like substances. BSDOM and NOR were static quenching, with oxygen-containing functional groups such as C-O and -OH playing an important role. Temperature influenced the order of binding, the activity of the protein fraction, and its associated functional groups. At temperatures of 25 °C and 40 °C, the fluorescent components were observed to exhibit consistent binding preferences, whereby the humic-like component demonstrated a greater affinity for NOR compared to the protein-like component. However, the functional group binding order exhibited an opposite trend. At 10 °C, a new protein-like component appeared and bound preferentially to NOR, when no C-O stretch corresponding to the amide was observed. The finding will contribute to a comprehensive understanding of the interaction mechanisms between DOM and antibiotics under climate change, as well as providing a theoretical basis to reduce the environmental risks of biogas slurry and antibiotics.http://www.sciencedirect.com/science/article/pii/S0147651324000289DOMAntibioticStructural transformationTemperatureSpectral analysis2D-COS |
| spellingShingle | Jinluo Fan Chengjun Ge Ailing Li Guoliang Ren Hui Deng Dongming Wu Jiwei Luo Yanhu He Yuanyuan Zhao Jiatong Li Dan Feng Huamei Yu The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation Ecotoxicology and Environmental Safety DOM Antibiotic Structural transformation Temperature Spectral analysis 2D-COS |
| title | The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation |
| title_full | The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation |
| title_fullStr | The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation |
| title_full_unstemmed | The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation |
| title_short | The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation |
| title_sort | structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation |
| topic | DOM Antibiotic Structural transformation Temperature Spectral analysis 2D-COS |
| url | http://www.sciencedirect.com/science/article/pii/S0147651324000289 |
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