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He G, Liu X, Xu Y, Liu Y, Masanja F, Deng Y, Zhao L. Metabolic dysfunctions in pearl oysters following recurrent marine heatwaves. MARINE ENVIRONMENTAL RESEARCH 2024; 200:106641. [PMID: 39018818 DOI: 10.1016/j.marenvres.2024.106641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/29/2024] [Accepted: 07/06/2024] [Indexed: 07/19/2024]
Abstract
Marine heatwaves (MHWs) have become more frequent, intense and extreme in oceanic systems in the past decade, resulting in mass mortality events of marine invertebrates and devastating coastal marine ecosystems. While metabolic homeostasis is a fundamental requirement in stress tolerance, little is known about its role under intensifying MHWs conditions. Here, we investigated impacts of MHWs on the metabolism in pearl oysters (Pinctada maxima) - an ecologically and economically significant bivalve species in tropical ecosystems. Activities of digestive enzymes (gastric proteases, lipases, and amylases) did not significantly respond to various scenario of recurrent MHWs varying from 24 °C to 28 °C (moderate) and 32 °C (severe). The metabolomics analysis revealed nine and five key metabolism pathways under both MHWs scenarios. Specifically, pathways associated with energy metabolism were impaired by moderate MHWs, manifesting in downregulation of differential metabolite (The nicotinic acid and N-acetyl-glutamic acid). The content of CDP-ethanolamine was significantly decrease, and the perturbations of oxidative stress caused by the decreased of content of D-glutamine. Metabolites related to a suite of body functions (e.g., the lipid metabolism, biomineralization, and antioxidant defenses) showed significantly negative responses by severe MHWs. These findings reveal the metabolic impairments of marine bivalves when subjected to MHWs varying in intensity and frequency, implying cascading consequences which deserve further investigation.
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Affiliation(s)
- Guixiang He
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Xiaolong Liu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yang Xu
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Yong Liu
- Pearl Oyster Research Institute, Guangdong Ocean University, Zhanjiang, China
| | | | - Yuewen Deng
- Fisheries College, Guangdong Ocean University, Zhanjiang, China
| | - Liqiang Zhao
- Fisheries College, Guangdong Ocean University, Zhanjiang, China; Guangdong Provincial Science and Technology Innovation Center of Marine Invertebrates, Guangdong Ocean University, Zhanjiang, China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Guangdong Ocean University, Zhanjiang, China.
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Peralta-Ruiz Y, Rossi C, Grande-Tovar CD, Chaves-López C. Green Management of Postharvest Anthracnose Caused by Colletotrichum gloeosporioides. J Fungi (Basel) 2023; 9:623. [PMID: 37367558 DOI: 10.3390/jof9060623] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 05/14/2023] [Accepted: 05/17/2023] [Indexed: 06/28/2023] Open
Abstract
Fruits and vegetables are constantly affected by postharvest diseases, of which anthracnose is one of the most severe and is caused by diverse Colletotrichum species, mainly C. gloeosporioides. In the last few decades, chemical fungicides have been the primary approach to anthracnose control. However, recent trends and regulations have sought to limit the use of these substances. Greener management includes a group of sustainable alternatives that use natural substances and microorganisms to control postharvest fungi. This comprehensive review of contemporary research presents various sustainable alternatives to C. gloeosporioides postharvest control in vitro and in situ, ranging from the use of biopolymers, essential oils, and antagonistic microorganisms to cultivar resistance. Strategies such as encapsulation, biofilms, coatings, compounds secreted, antibiotics, and lytic enzyme production by microorganisms are revised. Finally, the potential effects of climate change on C. gloeosporioides and anthracnose disease are explored. Greener management can provide a possible replacement for the conventional approach of using chemical fungicides for anthracnose postharvest control. It presents diverse methodologies that are not mutually exclusive and can be in tune with the needs and interests of new consumers and the environment. Overall, developing or using these alternatives has strong potential for improving sustainability and addressing the challenges generated by climate change.
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Affiliation(s)
- Yeimmy Peralta-Ruiz
- Programa de Ingeniería Agroindustrial, Facultad de Ingeniería, Universidad del Atlántico, Puerto Colombia 081008, Colombia
| | - Chiara Rossi
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
| | - Carlos David Grande-Tovar
- Grupo de Investigación de Fotoquímica y Fotobiología, Universidad del Atlántico, Carrera 30 Número 8-49, Puerto Colombia 081008, Colombia
| | - Clemencia Chaves-López
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, 64100 Teramo, Italy
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3
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Saied M, Hasanin M, Abdelghany TM, Amin BH, Hashem AH. Anticandidal activity of nanocomposite based on nanochitosan, nanostarch and mycosynthesized copper oxide nanoparticles against multidrug-resistant Candida. Int J Biol Macromol 2023; 242:124709. [PMID: 37141971 DOI: 10.1016/j.ijbiomac.2023.124709] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/22/2023] [Accepted: 04/28/2023] [Indexed: 05/06/2023]
Abstract
Recently, antimicrobial resistance has increased globally particularly Candida infections. Most of antifungal drugs used for treating candidiasis became resistant to most of Candida species. In the current study, a nanocomposite based on mycosynthesized copper oxide nanoparticles (CuONPs), nanostarch, nanochitosan was prepared. Results illustrated that twenty-four Candida isolates were isolated from clinical samples. Furthermore, three Candida strains were selected as the most resistant among others toward commercial antifungal drugs; these selected strains were identified genetically as C. glabrata MTMA 19, C. glabrata MTMA 21 and C. tropicalis MTMA 24. Characterization of the prepared nanocomposite was carried out using physiochemical analysis included Ultraviolet-visible spectroscopy (Uv-Vis), Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray spectroscopy (EDX) and Transmission Electron Microscopy (TEM). Moreover, the nanocomposite exhibited promising anticandidal activity against C. glabrata MTMA 19, C. glabrata MTMA 21 and C. tropicalis MTMA 24, where the inhibition zones were 15.3, 27 and 28 mm, respectively. Ultrastructure changes observed in nanocomposite-treated C. tropicalis demonstrated disruption of the cell wall which led to cell death. In conclusion, our results confirmed that the novel biosynthesized nanocomposite based on mycosynthesized CuONPs, nanostarch and nanochitosan is a promising anticandidal agent to fight multidrug-resistant Candida.
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Affiliation(s)
- Mohamed Saied
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | - Mohamed Hasanin
- Cellulose and Paper Department, National Research Centre, Dokki, Cairo 12622, Egypt.
| | - Tarek M Abdelghany
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt
| | - Basma H Amin
- Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo, Egypt
| | - Amr H Hashem
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Nasr City, Cairo 11884, Egypt.
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Yao J, Zhu J, Zhao M, Zhou L, Marchioni E. Untargeted Lipidomics Method for the Discrimination of Five Crab Species by Ultra-High-Performance Liquid Chromatography High-Resolution Mass Spectrometry Combined with Chemometrics. Molecules 2023; 28:molecules28093653. [PMID: 37175063 PMCID: PMC10179896 DOI: 10.3390/molecules28093653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 04/14/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
In this study, ultra-high-performance liquid chromatography high-resolution accurate mass-mass spectrometry (UHPLC-HRAM/MS) was applied to characterize the lipid profiles of five crab species. A total of 203 lipid molecular species in muscle tissue and 176 in edible viscera were quantified. The results indicate that Cancer pagurus contained high levels of lipids with a docosahexaenoic acid (DHA) and eicosapntemacnioc acid (EPA) structure in the muscle tissue and edible viscera. A partial least squares discriminant analysis (PLS-DA) showed that PE 16:0/22:6, PE P-18:0/20:5, PA 16:0/22:6 and PC 16:0/16:1 could be used as potential biomarkers to discriminate the five kinds of crabs. In addition, some lipids, such as PE 18:0/20:5, PC 16:0/16:1, PE P-18:0/22:6 and SM 12:1;2O/20:0, could be used as characteristic molecules to distinguish between Cancer magister and Cancer pagurus, which are similar in appearance. This study provides a new perspective on discriminating crab species from MS-based lipidomics.
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Affiliation(s)
- Jiaxu Yao
- National Demonstration Center for Experimental Ethnopharmacology Education, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Jinrui Zhu
- National Demonstration Center for Experimental Ethnopharmacology Education, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Minjie Zhao
- Equipe de Chimie Analytique des Molécules Bioactives et Pharmacognoise, Institut Pluridisciplinaire Hubert Curien (UMR 7178, CNRS/UDS), 74 Route du Rhin, 67400 Illkirch, France
| | - Li Zhou
- National Demonstration Center for Experimental Ethnopharmacology Education, School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan 430074, China
| | - Eric Marchioni
- Equipe de Chimie Analytique des Molécules Bioactives et Pharmacognoise, Institut Pluridisciplinaire Hubert Curien (UMR 7178, CNRS/UDS), 74 Route du Rhin, 67400 Illkirch, France
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Mareeswaran S, Gangatharan K, Kumar PR, Shajan XS. Thermal, Mechanical and Flame Retardant Properties of Antimony Trioxide-Titania Aerogel Composite (ATAC) Reinforced Epoxy Matrix. J Inorg Organomet Polym Mater 2023. [DOI: 10.1007/s10904-023-02615-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Vuong TX, Stephen J, Nguyen TTT, Cao V, Pham DTN. Insight into the Speciation of Heavy Metals in the Contaminated Soil Incubated with Corn Cob-Derived Biochar and Apatite. Molecules 2023; 28:molecules28052225. [PMID: 36903469 PMCID: PMC10005082 DOI: 10.3390/molecules28052225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/10/2023] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
Soil heavy metal contamination is a severe issue. The detrimental impact of contaminated heavy metals on the ecosystem depends on the chemical form of heavy metals. Biochar produced at 400 °C (CB400) and 600 °C (CB600) from corn cob was applied to remediate Pb and Zn in contaminated soil. After a one month amendment with biochar (CB400 and CB600) and apatite (AP) with the ratio of 3%, 5%, 10%, and 3:3% and 5:5% of the weight of biochar and apatite, the untreated and treated soil were extracted using Tessier's sequence extraction procedure. The five chemical fractions of the Tessier procedure were the exchangeable fraction (F1), carbonate fraction (F2), Fe/Mn oxide fraction (F3), organic matter (F4), and residual fraction (F5). The concentration of heavy metals in the five chemical fractions was analyzed using inductively coupled plasma mass spectroscopy (ICP-MS). The results showed that the total concentration of Pb and Zn in the soil was 3023.70 ± 98.60 mg kg-1 and 2034.33 ± 35.41 mg kg-1, respectively. These figures were 15.12 and 6.78 times higher than the limit standard set by the United States Environmental Protection Agency (U.S. EPA 2010), indicating the high level of contamination of Pb and Zn in the studied soil. The treated soil's pH, OC, and EC increased significantly compared to the untreated soil (p > 0.05). The chemical fraction of Pb and Zn was in the descending sequence of F2 (67%) > F5 (13%) > F1 (10%) > F3 (9%) > F4 (1%) and F2~F3 (28%) > F5 (27%) > F1 (16%) > F4 (0.4%), respectively. The amendment of BC400, BC600, and apatite significantly reduced the exchangeable fraction of Pb and Zn and increased the other stable fractions including F3, F4, and F5, especially at the rate of 10% of biochar and a combination of 5:5% of biochar and apatite. The effects of CB400 and CB600 on the reduction in the exchangeable fraction of Pb and Zn were almost the same (p > 0.05). The results showed that CB400, CB600, and the mixture of these biochars with apatite applied at 5% or 10% (w/w) could immobilize lead and zinc in soil and reduce the threat to the surrounding environment. Therefore, biochar derived from corn cob and apatite could be promising materials for immobilizing heavy metals in multiple-contaminated soil.
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Affiliation(s)
- Truong Xuan Vuong
- Faculty of Chemistry, TNU-University of Science, Thai Nguyen City 24000, Vietnam
- Correspondence: (T.X.V.); (D.T.N.P.)
| | - Joseph Stephen
- School of Materials Science and Engineering, University of NSW, Kensington, NSW 2052, Australia
- Institute of Resources, Ecosystem and Environment of Agriculture, Center of Biochar and Green Agriculture, Nanjing Agricultural University, Nanjing 210095, China
- School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
- ISEM and School of Physics, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Thi Thu Thuy Nguyen
- Faculty of Chemistry, TNU-University of Science, Thai Nguyen City 24000, Vietnam
| | - Viet Cao
- Faculty of Natural Sciences, Hung Vuong University, Viet Tri City 35120, Vietnam
| | - Dung Thuy Nguyen Pham
- NTT Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Vietnam
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 70000, Vietnam
- Correspondence: (T.X.V.); (D.T.N.P.)
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Tee GT, Gok XY, Yong WF. Adsorption of pollutants in wastewater via biosorbents, nanoparticles and magnetic biosorbents: A review. ENVIRONMENTAL RESEARCH 2022; 212:113248. [PMID: 35405129 DOI: 10.1016/j.envres.2022.113248] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/08/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Adsorption has gained much attention as one of the efficient approaches to remediate the contaminants in wastewater. Herein, this critical review focuses on the preparation, modification, application and regeneration of the biosorbents, nanoparticles and magnetic biosorbents for the wastewater treatment in recent 5 years (2017-2021). Among these materials, the development of magnetic biosorbents is attractive owing to their variable active sites, high specific surface area, easy separation and low cost. To improve the adsorption performance of biosorbents, the chemical activations such as acid, alkali and salt activations of biosorbents are discussed. In general, the oxidation reaction in acid, alkali and salt activations increases the porosity of biosorbents. The surface characteristics, surface chemistry of the biosorbents and magnetic biosorbents such as electrostatic interaction, π-π interaction and hydrogen bonding are highlighted. Ionic compounds are separated through ion exchange, surface charge and electrostatic interactions while the organic pollutants are removed via hydrophobicity, π-π interactions and hydrogen bonding. The effect of solution pH, adsorbent dosage, initial concentration of pollutants, adsorption duration and temperature on the adsorption capacity, and removal efficiency are discussed. Generally, an increase in adsorbent dosage resulted in a decrease in adsorption capacity due to the excessive active sites. On the other hand, a higher initial concentration or an increase in contact time of adsorbent increased the driving force, subsequently enhancing the adsorption capacity. Finally, this review will be concluded with a summary, challenges and future outlook of magnetic biosorbents. It is anticipated that this review will provide insights into engineering advanced and suitable materials to achieve cost-effective and scalable adsorbents for practical and sustainable environmental remediation.
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Affiliation(s)
- Guat Teng Tee
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia
| | - Xie Yuen Gok
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia
| | - Wai Fen Yong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan, 43900, Malaysia; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.
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8
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Synthesis of novel nanoporous zinc phosphate/hydroxyapatite nano-rods (ZPh/HPANRs) core/shell for enhanced adsorption of Ni2+ and Co2+ ions: Characterization and application. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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9
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Surface modification of nanoparticles to improve oil recovery Mechanisms: A critical review of the methods, influencing Parameters, advances and prospects. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Galal-Khallaf A, Al-Awthan YS, Al-Duais MA, Mohammed-Geba K. Nile crab Potamonautes niloticus shell extract: Chromatographic and molecular elucidation of potent antioxidant and anti-inflammatory capabilities. Bioorg Chem 2022; 127:106023. [PMID: 35853295 DOI: 10.1016/j.bioorg.2022.106023] [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] [Received: 12/02/2021] [Revised: 07/08/2022] [Accepted: 07/09/2022] [Indexed: 11/02/2022]
Abstract
Diseases emerging from oxidative stress and inflammatory imbalance are deeply threatening the modern world. Fisheries by-products are rich in bioactive metabolites. However, they are usually discarded, posing a real environmental burden. Herein we aimed to explore the bioactive compounds, anti-oxidant, and anti-inflammatory capabilities of the shell of the freshwater Nile crab Potamonautes niloticus. Methanolic extract of crab shell was subjected to GC/MS and HPLC analyses of total lipids, flavonoids, and phenolic acids. Also, zebrafish Danio rerio was subjected to inflammatory status using CuSO4, then treated with different doses of shell extract. Total antioxidant capacity and QPCR analyses for gene expression of different antioxidant enzymes, i.e. superoxide dismutase(sod), catalase (cat), and glutathione peroxidase (gpx) and pro-inflammatory cytokines, i.e. tumor necrosis factor alpha (tnf-α), nuclear factor kappa B (nf-κb), interleukin 1-Beta (il-1b) were assessed. The results showed the richness of crab shell extract with ω - 9 (32.78 %), ω - 7 (6.37 %), and ω - 6 (4 %) unsaturated fatty acids. Diverse phenolic acids and flavonoids were found, dominaed by Benzoic acid (11.24 µg mL-1), Syringic acid (11.4 µg mL-1), Ferulic acid (10.55 µg mL-1), Kampferol (9.47 µg mL-1), Quercetin (6.33 µg mL-1), and Naringin (4.16 µg mL-1). Crab extract also increased the total antioxidant capacity and oxidative stress enzymeś mRNA levels by 1.3-2.15 folds. It down-regulated pro-inflammatory cytokineś mRNA levels by 1.3-2 folds in comparison to positive control (CuSO4-induced) zebrafishes. The net results indicated that Nile crab shell extract is a rich source of anti-oxidant and anti-inflammatory compounds. Therefore, we recommend to continuously explore the bioactive capabilities of exoskeletons of different shellfish species. This can provide additive values for these products and reduce the environmental burden of their irresponsible discarding.
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Affiliation(s)
- Asmaa Galal-Khallaf
- Molecular Biology and Biotechnology Laboratory, Department of Zoology, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
| | - Yahya S Al-Awthan
- Department of Biology, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia; Department of Biology, Faculty of Science, Ibb University, Ibb, Yemen
| | - Mohammed A Al-Duais
- Department of Biochemistry, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia; Biochemistry Unit, Chemistry Department, Faculty of Science, Ibb University, Ibb, Yemen
| | - Khaled Mohammed-Geba
- Molecular Biology and Biotechnology Laboratory, Department of Zoology, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt; Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Cambridge, MD, United States.
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11
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Wang K, Wu K, Qu Z, Wu Y, Jiao E, Zheng X, Shi J. Flame-Retardant and Alarm-Sensitive composite films by covalent modification of MWCNT with dopamine. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110986] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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12
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Sengodan S, Matheswaran B, Shanmugam S, Thangadurai Thangaian D. Investigation on crystal facet-dependent antibacterial activity of Cu2O crystals – A structural, morphological, and spectroscopy studies. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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13
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Zhu H, Zou H. Characterization of algae residue biochar and its application in methyl orange wastewater treatment. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:3716-3725. [PMID: 34928838 DOI: 10.2166/wst.2021.473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this work, Spirulina residue was used as the raw material to prepare different biochars by changing the pyrolysis time. Moreover, the obtained products were characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, Fourier transform infrared spectroscopy, and X-ray diffraction energy spectra. This experiment used the batch adsorption method to study the adsorption effect of pH, dosage, and pyrolysis time on methyl orange. The adsorption of methyl orange onto Spirulina residue biochar (SRBC) were fitted with the Langmuir isotherm model and pseudo-second-order kinetics. The results showed that the surface functional groups of SRBC obtained by dry pyrolysis were abundant, and could effectively adsorb methyl orange dye in an aqueous solution. The sample prepared at 500 °C for 5 h had the best adsorption effect on methyl orange. The change of pyrolysis time will affect the physicochemical properties of biochar from Spirulina residue, thereby affecting its adsorption effect on methyl orange dye. The analysis showed that the chemical adsorption of SRBC on methyl orange might be the primary way of dye removal. The results can provide a reference for preparing biochar from algae residue and biochar application in the removal of dye wastewater.
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Affiliation(s)
- Hao Zhu
- Department of Resource and Environment, Anhui Science and Technology University, Fengyang 233100, China E-mail:
| | - Haiming Zou
- Department of Resource and Environment, Anhui Science and Technology University, Fengyang 233100, China E-mail:
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14
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Machado IV, Dos Santos JRN, Januario MAP, Corrêa AG. Greener organic synthetic methods: Sonochemistry and heterogeneous catalysis promoted multicomponent reactions. ULTRASONICS SONOCHEMISTRY 2021; 78:105704. [PMID: 34454180 PMCID: PMC8406036 DOI: 10.1016/j.ultsonch.2021.105704] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/24/2021] [Accepted: 07/29/2021] [Indexed: 06/06/2023]
Abstract
Ultrasound is an essential technique to improve organic synthesis from the point of view of green chemistry, as it can promote better yields and selectivities, in addition to shorter reaction times when compared to the conventional methods. Heterogeneous catalysis is another pillar of sustainable chemistry being the recycling and reuse of the catalysts one of its great advantage. In the other hand, multicomponent reactions provide the synthesis of structurally diverse compounds, in a one-pot fashion, without isolation and purification of intermediates. Thus, the combination of these protocols has proved to be a powerful tool to obtain biologically active organic compounds with lower costs, time and energy consumption. Herein, we provide a comprehensive overview of advances on methods of organic synthesis that have been reported over the past ten years with focus on ultrasound-assisted multicomponent reactions under heterogeneous catalysis. In particular, we present pharmacologically important N- and O-heterocyclic compounds, considering their synthetic methods using green solvents, and catalyst recycling.
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Affiliation(s)
- Ingrid V Machado
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Jhonathan R N Dos Santos
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Marcelo A P Januario
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Arlene G Corrêa
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil.
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15
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Chen YQ, Wang J, Liao ML, Li XX, Dong YW. Temperature adaptations of the thermophilic snail Echinolittorina malaccana: insights from metabolomic analysis. J Exp Biol 2021; 224:jeb.238659. [PMID: 33536302 DOI: 10.1242/jeb.238659] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 01/27/2021] [Indexed: 12/26/2022]
Abstract
The periwinkle snail Echinolittorina malaccana, for which the upper lethal temperature is near 55°C, is one of the most heat-tolerant eukaryotes known. We conducted a multi-level investigation - including cardiac physiology, enzyme activity, and targeted and untargeted metabolomic analyses - that elucidated a spectrum of adaptations to extreme heat in this organism. All systems examined showed heat intensity-dependent responses. Under moderate heat stress (37-45°C), the snail depressed cardiac activity and entered a state of metabolic depression. The global metabolomic and enzymatic analyses revealed production of metabolites characteristic of oxygen-independent pathways of ATP generation (lactate and succinate) in the depressed metabolic state, which suggests that anaerobic metabolism was the main energy supply pathway under heat stress (37-52°C). The metabolomic analyses also revealed alterations in glycerophospholipid metabolism under extreme heat stress (52°C), which likely reflected adaptive changes to maintain membrane structure. Small-molecular-mass organic osmolytes (glycine betaine, choline and carnitine) showed complex changes in concentration that were consistent with a role of these protein-stabilizing solutes in protection of the proteome under heat stress. This thermophilic species can thus deploy a wide array of adaptive strategies to acclimatize to extremely high temperatures.
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Affiliation(s)
- Ya-Qi Chen
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China
| | - Jie Wang
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao 266003, China
| | - Ming-Ling Liao
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao 266003, China
| | - Xiao-Xu Li
- State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Science, Xiamen University, Xiamen 361102, China
| | - Yun-Wei Dong
- The Key Laboratory of Mariculture, Ministry of Education, Fisheries College, Ocean University of China, Qingdao 266003, China .,Function Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266235, China
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Xiao L, Ye F, Zhou Y, Zhao G. Utilization of pomelo peels to manufacture value-added products: A review. Food Chem 2021; 351:129247. [PMID: 33640768 DOI: 10.1016/j.foodchem.2021.129247] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 01/24/2021] [Accepted: 01/28/2021] [Indexed: 12/13/2022]
Abstract
Pomelo peel as a by-product from pomelo consumption is rich in various nutrients and functional compounds, while most of the by-product is disposed as wastes. The utilization of pomelo peels could not only result in valued-added products/ingredients, but also reduce the environmental threats. By mainly reviewing the recent articles, pomelo peels could be directly used to produce candied pomelo peel, tea, jams, etc. Additionally, functional components (essential oils, pectin, polyphenols, etc.) could be extracted from pomelo peels and applied in food, pharmaceutical and chemical fields. The extraction methods exerted important influences on the composition, physicochemical properties, bioactivities and structures of the resultant fractions. Furthermore, pomelo peel was exploited to make adsorbents, bioethanol, etc. For the future investigations, the functionality- or bioactivity-oriented regimes to recovery valuable components from pomelo peel should be developed in an economic, effective and eco-friendly way and their applicability in large-scale production should be addressed.
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Affiliation(s)
- Li Xiao
- College of Food Science, Southwest University, Chongqing 400715, People's Republic of China
| | - Fayin Ye
- College of Food Science, Southwest University, Chongqing 400715, People's Republic of China
| | - Yun Zhou
- College of Food Science, Southwest University, Chongqing 400715, People's Republic of China
| | - Guohua Zhao
- College of Food Science, Southwest University, Chongqing 400715, People's Republic of China; Chongqing Engineering Research Centre for Regional Foods, Chongqing 400715, People's Republic of China.
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