1
|
Kamińska A, Sreńscek-Nazzal J, Serafin J, Miądlicki P, Kiełbasa K, Wróblewska A. Biomass-based activated carbons produced by chemical activation with H 3PO 4 as catalysts for the transformation of α-pinene to high-added chemicals. Environ Sci Pollut Res Int 2023:10.1007/s11356-023-28232-2. [PMID: 37329374 DOI: 10.1007/s11356-023-28232-2] [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: 03/27/2023] [Accepted: 06/08/2023] [Indexed: 06/19/2023]
Abstract
In the era of ecology and careful care for the environment, it becomes important to use renewable raw materials of plant origin, which are often more easily available and cheaper. One of the important and rapidly developing directions of research are works related to the use of waste plant biomass; an example of this trend is the production of activated carbons from food industry waste. One of the examples of the application of derived from biomass activated carbons can be using them as catalysts for the isomerization of terpene compounds. Carbons based on waste biomass are characterized by the minimal amount of waste formation during their manufacture, and their use in the isomerization reaction allows to obtain high conversion of organic raw material and high selectivities of transformation to the desired products, making these carbons environmentally friendly substitutes for the catalysts used usually in this process. In this work, obtained carbonaceous catalysts were tested in the process of isomerization of α-pinene to high value chemicals (mainly camphene and limonene). Under the most favorable conditions (activated carbon from sunflower husks content in reaction mixture 5 wt%, temperature 180 °C, and reaction time 100 min), α-pinene was completely converted (conversion 100 mol%) with high selectivity towards camphene (54 mol%). To prepare activated carbons, biomass precursors (orange peels, sunflower husks, spent coffee grounds) were activated with 85% H3PO4 through the chemical activation. The obtained materials were characterized by such methods as sorption N2 at - 196 °C, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and X-ray fluorescence (XRF) to determine the relationship between their textural-chemical properties and catalysts activity in isomerization process. The synthesized materials were characterized by a specific surface area in the range of 930-1764 m2, total pore volume in the range of 0.551-1.02 cm3/g, and total acid-site concentrations in the range of 1.47-2.33 mmol/g. These results showed that textural parameters of the obtained activated carbons have the important role in the isomerization of α-pinene.
Collapse
Affiliation(s)
- Adrianna Kamińska
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065, Szczecin, Poland
| | - Joanna Sreńscek-Nazzal
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065, Szczecin, Poland
| | - Jarosław Serafin
- Department of Inorganic and Organic Chemistry, University of Barcelona, Martí I Franquès, 1-11, 08028, Barcelona, Spain.
| | - Piotr Miądlicki
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065, Szczecin, Poland
| | - Karolina Kiełbasa
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065, Szczecin, Poland
| | - Agnieszka Wróblewska
- Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065, Szczecin, Poland
| |
Collapse
|
2
|
Nagarajan V, Bhuvaneswari R, Chandiramouli R. Adsorption studies of camphene and eucalyptol molecules on orthorhombic germanane nanosheet - A first-principles investigation. J Mol Graph Model 2023; 119:108395. [PMID: 36549225 DOI: 10.1016/j.jmgm.2022.108395] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 11/01/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
In the present work, we deployed a novel orthorhombic germanane nanosheet (ortho-GeNS) as a sensing material to detect camphene and eucalyptol molecules, the indoor air pollutants in the ambient environment. In the beginning, the structural and dynamical permanency of ortho-GeNS is confirmed with cohesive energy (-4.164eV/atom) and phonon-band maps. Successively, the electronic features of ortho-GeNS are conferred using band structure along with the projected density of states maps. The energy gap of ortho-GeNS at the hybrid GGA/B3LYP level of theory is computed to be 3.948 eV. Mainly, the adsorption properties of terpinene molecules, namely camphene and eucalyptol on ortho-GeNS are investigated via ascertaining adsorption energy, Mulliken population analysis, and relative band gap variations. Besides, the scope of adsorption energy values (-0.405eVto-0.669eV) exemplifies that the target molecules are physisorbed on ortho-GeNS. Overall results suggested that the ortho-GeNS can be deployed as a worthy chemiresistive sensor to sense indoor air pollutants for monitoring indoor air quality.
Collapse
Affiliation(s)
- V Nagarajan
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Bhuvaneswari
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India
| | - R Chandiramouli
- School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, 613 401, India.
| |
Collapse
|
3
|
Gadotti VM, Huang S, Zamponi GW. The terpenes camphene and alpha-bisabolol inhibit inflammatory and neuropathic pain via Cav3.2 T-type calcium channels. Mol Brain 2021; 14:166. [PMID: 34775970 PMCID: PMC8591808 DOI: 10.1186/s13041-021-00876-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 09/06/2021] [Accepted: 11/03/2021] [Indexed: 11/10/2022] Open
Abstract
T-type calcium channels are known molecular targets of certain phytocannabinoids and endocannabinoids. Here we explored the modulation of Cav3.2 T-type calcium channels by terpenes derived from cannabis plants. A screen of eight commercially available terpenes revealed that camphene and alpha-bisabolol mediated partial, but significant inhibition of Cav3.2 channels expressed in tsA-201 cells, as well as native T-type channels in mouse dorsal root ganglion neurons. Both compounds inhibited peak current amplitude with IC50s in the low micromolar range, and mediated an additional small hyperpolarizing shift in half-inactivation voltage. When delivered intrathecally, both terpenes inhibited nocifensive responses in mice that had received an intraplantar injection of formalin, with alpha-bisabolol showing greater efficacy. Both terpenes reduced thermal hyperalgesia in mice injected with Complete Freund's adjuvant. This effect was independent of sex, and absent in Cav3.2 null mice, indicating that these compounds mediate their analgesic properties by acting on Cav3.2 channels. Both compounds also inhibited mechanical hypersensitivity in a mouse model of neuropathic pain. Hence, camphene and alpha-bisabolol have a wide spectrum of analgesic action by virtue of inhibiting Cav3.2 T-type calcium channels.
Collapse
Affiliation(s)
- Vinicius M Gadotti
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, AB, T2N 4N1, Calgary, Canada
| | - Sun Huang
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, AB, T2N 4N1, Calgary, Canada
| | - Gerald W Zamponi
- Department of Physiology and Pharmacology, Hotchkiss Brain Institute, Alberta Children's Hospital Research Institute, University of Calgary, AB, T2N 4N1, Calgary, Canada.
| |
Collapse
|
4
|
Subramani M, Saravanan V, Theerthagiri J, Subramaniam V, Pazhanivel T, Ramasamy S, Manickam S. Kinetics and degradation of camphene with OH radicals and its subsequent fate under the atmospheric O 2 and NO radicals - A theoretical study. Chemosphere 2021; 267:129250. [PMID: 33338722 DOI: 10.1016/j.chemosphere.2020.129250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 11/04/2020] [Revised: 11/28/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
Camphene (C10H16) is an abundant bicyclic monoterpene in the atmosphere which can be easily oxidized by the atmospheric OH radicals. In this study, the oxidation of camphene with OH radicals and its subsequent reactions are studied using quantum chemical method. Thermochemical parameters show that the addition of OH radicals to the terminal C10 atom of camphene is thermodynamically more stable than the addition of OH radicals to the internal C7 atom of camphene. The reaction force profile demonstrates that the formation of two hydroxyalkoxy radical intermediates (I1a and I2a) are mainly dominated by the structural rearrangement with 94.28% and 99.43% of the total energy, respectively. The overall reaction rate coefficient for camphene + OH radical is 2.1⨯10-12 cm3 molecule-1 sec-1 at 298 K and 1 atm which agree well with the experimental reaction rate coefficient (5.58⨯10-11 cm3 molecule-1 sec-1) for the reaction of camphene with OH radical. The branching ratio for the addition of OH radical to the C10 position of camphene is 68.32%, and the C7 position of camphene is 31.68% at 298 K. The calculated lifetime reveals that camphene degrades quickly in the atmosphere owing to its short lifetime of 5.3 h. The obtained mechanistic and kinetic results reveal that the addition of OH radical to the C10 position is more dominant than the C7 position, and it is more stable and spontaneous in the atmosphere.
Collapse
Affiliation(s)
| | - Vinnarasi Saravanan
- Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Jayaraman Theerthagiri
- Department of Chemistry and Research Institute of Natural Sciences, Gyeongsang National University, Jinju, 52828, South Korea
| | | | - Thangavelu Pazhanivel
- Smart Materials Interface Laboratory, Department of Physics, Periyar University, Salem, Tamilnadu, 636011, India
| | - Shankar Ramasamy
- Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, BE1410, Brunei Darussalam
| |
Collapse
|
5
|
Baruah SD, Gour NK, Sarma PJ, Deka RC. OH-initiated mechanistic pathways and kinetics of camphene and fate of product radical: a DFT approach. Environ Sci Pollut Res Int 2018; 25:2147-2156. [PMID: 29116529 DOI: 10.1007/s11356-017-0646-2] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 10/30/2017] [Indexed: 06/07/2023]
Abstract
Present manuscript represents the DFT studies on the oxidation reaction of camphene initiated by OH radical and fate of product radicals using M06-2X functional along with 6-31+G(d,p) basis set. Intrinsic reaction calculation is done for transition states involving OH-addition reactions which proceed via reaction complexes proceeding to the formation of transition states. The rate constant calculated by using canonical transition state theory at 298 K and 1 atm is found to be 5.67 × 10-11 cm3 molecule-1 s-1 which is in good agreement with the experimental rate constant. The atmospheric lifetime of the titled molecule has also been reported in our work.
Collapse
Affiliation(s)
- Satyajit Dey Baruah
- Department of Chemical Sciences, Tezpur University Tezpur, Napaam, Assam, 784028, India
| | - Nand Kishor Gour
- Department of Chemical Sciences, Tezpur University Tezpur, Napaam, Assam, 784028, India.
| | - Plaban Jyoti Sarma
- Department of Chemical Sciences, Tezpur University Tezpur, Napaam, Assam, 784028, India
| | - Ramesh Chandra Deka
- Department of Chemical Sciences, Tezpur University Tezpur, Napaam, Assam, 784028, India.
| |
Collapse
|
6
|
Girola N, Figueiredo CR, Farias CF, Azevedo RA, Ferreira AK, Teixeira SF, Capello TM, Martins EGA, Matsuo AL, Travassos LR, Lago JHG. Camphene isolated from essential oil of Piper cernuum (Piperaceae) induces intrinsic apoptosis in melanoma cells and displays antitumor activity in vivo. Biochem Biophys Res Commun 2015; 467:928-34. [PMID: 26471302 DOI: 10.1016/j.bbrc.2015.10.041] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [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: 10/03/2015] [Accepted: 10/08/2015] [Indexed: 02/08/2023]
Abstract
Natural monoterpenes were isolated from the essential oil of Piper cernuum Vell. (Piperaceae) leaves. The crude oil and the individual monoterpenes were tested for cytotoxicity in human tumor cell lineages and B16F10-Nex2 murine melanoma cells. In the present work we demonstrate the activity of camphene against different cancer cells, with its mechanism of action being investigated in vitro and in vivo in murine melanoma. Camphene induced apoptosis by the intrinsic pathway in melanoma cells mainly by causing endoplasmic reticulum (ER) stress, with release of Ca(2+) together with HmgB1 and calreticulin, loss of mitochondrial membrane potential and up regulation of caspase-3 activity. Importantly, camphene exerted antitumor activity in vivo by inhibiting subcutaneous tumor growth of highly aggressive melanoma cells in a syngeneic model, suggesting a promising role of this compound in cancer therapy.
Collapse
Affiliation(s)
- Natalia Girola
- Experimental Oncology Unit (UNONEX), Federal University of São Paulo, SP, Brazil.
| | - Carlos R Figueiredo
- Experimental Oncology Unit (UNONEX), Federal University of São Paulo, SP, Brazil
| | - Camyla F Farias
- Experimental Oncology Unit (UNONEX), Federal University of São Paulo, SP, Brazil
| | - Ricardo A Azevedo
- Laboratory of Tumor Immunology, Institute of Biomedical Sciences, University of São Paulo, SP, Brazil
| | - Adilson K Ferreira
- Laboratory of Tumor Immunology, Institute of Biomedical Sciences, University of São Paulo, SP, Brazil
| | - Sarah F Teixeira
- Laboratory of Tumor Immunology, Institute of Biomedical Sciences, University of São Paulo, SP, Brazil
| | - Tabata M Capello
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, SP, Brazil
| | | | - Alisson L Matsuo
- Interdepartmental Group of Health Economics (Grides), Federal University of São Paulo, SP, Brazil
| | - Luiz R Travassos
- Experimental Oncology Unit (UNONEX), Federal University of São Paulo, SP, Brazil
| | - João H G Lago
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, SP, Brazil
| |
Collapse
|