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Zhang P, Reza A, Ng E, Nguyen K, Lin S, Liang Z, Chen Y, Cirillo N. Phenolic composition and antioxidant capacity of betel inflorescence extract in a simulated oral environment. Food Chem 2024; 434:137411. [PMID: 37703774 DOI: 10.1016/j.foodchem.2023.137411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/15/2023]
Abstract
The addition of betel inflorescence (BI) and slaked lime (calcium hydroxide) to betel quid (BQ) formulation may be detrimental to human health. Here, we assessed BI extracts prepared using artificial saliva or aqueous solution with or without adding slaked lime to mimic the release of phytochemicals from BI in the oral cavity. The extracts were also profiled by HPLC-DAD-ESI-QTOF-MS/MS to understand the quality and quantity of phytochemicals released. The results indicate that slaked lime facilitates the extraction of phenolics, likely due to a high pH. In a simulated oral environment with artificial saliva, the addition of slaked lime promotes the release of safrole, a well-known carcinogen. Dominant phytochemicals detected also include eugenol, acetyl eugenol and methyl eugenol, and only a fraction of these compounds is released in the simulated oral environment. This study reveals that environmental conditions can considerably affect the extraction of phytochemicals and triggers further investigation on how chewing practices may influence the release and activity of carcinogens.
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Affiliation(s)
- Pangzhen Zhang
- School of Agriculture and Food, Faculty of Science, University of Melbourne, Parkville, VIC 3010, Australia
| | - Ahmad Reza
- Melbourne Dental School, Faculty of Medicine, Dentistry & Health Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Emily Ng
- Melbourne Dental School, Faculty of Medicine, Dentistry & Health Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Kimtrang Nguyen
- Melbourne Dental School, Faculty of Medicine, Dentistry & Health Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Sheng Lin
- Melbourne Dental School, Faculty of Medicine, Dentistry & Health Sciences, University of Melbourne, Parkville, VIC 3010, Australia
| | - Zijian Liang
- School of Agriculture and Food, Faculty of Science, University of Melbourne, Parkville, VIC 3010, Australia
| | - Yipeng Chen
- School of Agriculture and Food, Faculty of Science, University of Melbourne, Parkville, VIC 3010, Australia
| | - Nicola Cirillo
- Melbourne Dental School, Faculty of Medicine, Dentistry & Health Sciences, University of Melbourne, Parkville, VIC 3010, Australia.
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2
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Nicolodi C, Slominski WH, Parabocz GC, Pericolo S, Da-Col JA, Martendal E. Headspace solid-phase microextraction - gas chromatography - mass spectrometry qualitative screening method for active compounds, adulterants and impurities in ecstasy tablets seized in Northern Santa Catarina State, Brazil. Forensic Sci Int 2024; 355:111932. [PMID: 38246066 DOI: 10.1016/j.forsciint.2024.111932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 12/09/2023] [Accepted: 01/14/2024] [Indexed: 01/23/2024]
Abstract
The present work describes the development of a headspace solid-phase microextraction (HS-SPME) followed by gas chromatography - mass spectrometry (GC-MS) method for the qualitative analysis of compounds in seized ecstasy tablets that can be easily implemented in regular laboratories. HS-SPME with a DVB/CAR/PDMS 50/30 µm fiber was used to extract the ecstasy pills' components, including major and minor ones, in a single extraction/chromatographic run. For HS-SPME, the incubation time (0 min to 30 min), the extraction time (10 min to 40 min) and temperature (40 °C to 80 ºC), the buffer volume (3 mL to 8 mL), the buffer pH (6 to 9) and the NaCl concentration (0 mol/L to 6 mol/L) were evaluated using fractional factorial design. Different split ratios and detector voltages were also evaluated. The optimal compromise between sensitivity and peak resolution was found to be incubation and extraction at 65 ºC for 10 min and 25 min, respectively, 3 mL of pH 9 buffer containing 3 mol/L NaCl, using 40.0 mg of the powdered samples in a 15-mL amber glass vial, and an injection with a split ratio of 1:10 at 260 ºC for 10 min. Under optimal conditions, 44 samples from different seizures were analyzed. Seventy-five compounds were tentatively identified by the proposed method, including active substances, medicines, caffeine, safrole derivatives, synthesis intermediates and solvent residues. The number of tentatively identified compounds per sample varied from 8 to 24, with a mean of 15. Important findings in ecstasy samples, such as norcinamolaurin, α-methyl-1,3-benzodioxole-5-propanamide, α-methyl-3,4-methylenedioxyphenylpropionitrile, acetylsalicylic acid, piperonylonitrile, methyl isobutyl ketone, mesitylene, and 4-[3-(dimethylamino)propyl]- 2,6-dimethylphenol, identified with a frequency higher than 10%, are not found in the literature so far. The method precision, based on relative standard deviation of peak areas, ranged from 5% to 15%, depending on the compound. The method was shown to be simple, relatively fast, precise and a powerful tool for the identification of major and minor components in ecstasy tablets in a single analytical cycle, being useful for screening or quantitative purposes, if authentic standards are available.
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Affiliation(s)
- Caroline Nicolodi
- Laboratório de Pesquisa em Química Analítica e Nanomateriais Inorgânicos [Analytical Chemistry and Inorganic Nanomaterials Research Lab], Departamento de Química [Chemistry Department], Universidade do Estado de Santa Catarina [Santa Catarina State University], Joinville, SC, Brazil
| | - William Henrique Slominski
- Laboratório de Pesquisa em Química Analítica e Nanomateriais Inorgânicos [Analytical Chemistry and Inorganic Nanomaterials Research Lab], Departamento de Química [Chemistry Department], Universidade do Estado de Santa Catarina [Santa Catarina State University], Joinville, SC, Brazil
| | - Gisele Chibinski Parabocz
- Polícia Científica - Superintendência Regional de Joinville [Scientific Police - Joinville Regional Superintendency], Joinville, SC, Brazil
| | - Suellen Pericolo
- Polícia Científica - Superintendência Regional de Joinville [Scientific Police - Joinville Regional Superintendency], Joinville, SC, Brazil
| | - José Augusto Da-Col
- Laboratório de Pesquisa em Química Analítica e Nanomateriais Inorgânicos [Analytical Chemistry and Inorganic Nanomaterials Research Lab], Departamento de Química [Chemistry Department], Universidade do Estado de Santa Catarina [Santa Catarina State University], Joinville, SC, Brazil
| | - Edmar Martendal
- Laboratório de Pesquisa em Química Analítica e Nanomateriais Inorgânicos [Analytical Chemistry and Inorganic Nanomaterials Research Lab], Departamento de Química [Chemistry Department], Universidade do Estado de Santa Catarina [Santa Catarina State University], Joinville, SC, Brazil.
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3
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Liu Y, Wang F, Guo H, Zhang D, Zhang X, Wu Z, Li H, Xian Y, Yue P, Yang M. Effect of molecular distillation on the anti-inflammatory activity and neurotoxicity of Asarum essential oil. Front Pharmacol 2023; 14:1196137. [PMID: 37284321 PMCID: PMC10239799 DOI: 10.3389/fphar.2023.1196137] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/12/2023] [Indexed: 06/08/2023] Open
Abstract
Asarum essential oil (AEO) has been shown to have good pharmacological activities for the anti-inflammatory and analgesic effects, but increasing the dose may cause toxicity. Therefore, we studied the toxic and pharmacodynamic components of AEO by molecular distillation (MD). Anti-inflammatory activity was assessed using RAW264.7 cells. Neurotoxicity was assessed in PC12 cells and the overall toxicity of AEO was evaluated in the mouse acute toxicity assay. The results showed that AEO is primarily composed of safrole, methyl eugenol, and 3,5-dimethoxytoluene. After MD, three fractions were obtained and contained different proportions of volatile compounds relative to the original oil. The heavy fraction had high concentrations of safrole and methyl eugenol, while the light fraction contained high concentrations of α-pinene and β- pinene. The original oil and all three fractions exhibited anti-inflammatory effects, but the light fraction demonstrated more excellent anti-inflammatory activity than the other fractions. Asarum virgin oil and MD products are all neurotoxic. The exposure of PC12 cells to high concentrations of AEO resulted in abnormal nuclei, an increased number of apoptotic cells, increased ROS formation, and decreased SOD levels. Moreover, the results of acute toxicity tests in mice revealed that the light fractions were less toxic than virgin oils and other fractions. In summary, the data suggest that the MD technology enables the enrichment and separation of essential oil components and contributes to the selection of safe concentrations of AEO.
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Affiliation(s)
- Yang Liu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Fang Wang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, China
| | - HuiWen Guo
- College of Chinese Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Dingkun Zhang
- Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | | | - Zhenfeng Wu
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Huiting Li
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Yang Xian
- College of Continuing Education, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Pengfei Yue
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Ming Yang
- Key Laboratory of Modern Preparation of TCM, Ministry of Education, Jiangxi University of Chinese Medicine, Nanchang, China
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4
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Soares NR, Correa CTR, da Silva JC, da Silva Negreiros JR, Techio VH, Torres GA. Comparative cytogenetics of three economically important Piper L. species from the Brazilian Amazon. PROTOPLASMA 2022; 259:1099-1108. [PMID: 34762169 DOI: 10.1007/s00709-021-01721-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
The species Piper hispidinervum, Piper aduncum, and Piper affinis hispidinervum have essential oils with high levels of safrole, dillapiole, and sarisan, respectively. Safrole is important for pharmaceutical and chemical industries, while dillapiole and sarisan are promising compounds to control insects and fungi. These species are very similar morphologically and their taxonomy is controversial. Divergent hypotheses consider P. aduncum and P. hispidinervum either as a single species or as distinct taxa, while P. affinis hispidinervum is inferred to be a natural hybrid or a chemotype of P. hispidinervum. Delimiting the taxonomic boundaries would be helpful for germplasm conservation and breeding programs. This study aimed to undertake a detailed analysis of P. aduncum, P. hispidinervum, and P. affinis hispidinervum karyotype and rDNA sites. Genomic in situ hybridization (GISH) was used to establish genomic homology among species and to test the natural hybridization hypothesis for origin of P. affinis hispidinervum. Karyotype traits were similar for all three species: 2n = 26 small chromosomes, predominantly metacentric. All three species exhibited CMA+ bands on the secondary constriction of chromosome pair 4. A size-heteromorphic 35S rDNA site was co-localized with the CMA+ band. A 5S rDNA site was located in the proximal region of chromosome pair 7. The patterns of genomic hybridization revealed that the repetitive DNA fraction of the species is highly similar in terms of proportion of genome, sequence type, and distribution. Our findings did not allow us to differentiate the three species and point to the importance of deeper genomic studies to elucidate the taxonomic controversy.
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Affiliation(s)
- Nina Reis Soares
- Departamento de Biologia, Instituto de Ciências Naturais, Universidade Federal de Lavas, Lavras, Minas Gerais, Brazil
| | - Caio Túlio Rodrigues Correa
- Departamento de Biologia, Instituto de Ciências Naturais, Universidade Federal de Lavas, Lavras, Minas Gerais, Brazil
| | - Jhonata Costa da Silva
- Departamento de Biologia, Instituto de Ciências Naturais, Universidade Federal de Lavas, Lavras, Minas Gerais, Brazil
| | | | - Vânia Helena Techio
- Departamento de Biologia, Instituto de Ciências Naturais, Universidade Federal de Lavas, Lavras, Minas Gerais, Brazil
| | - Giovana Augusta Torres
- Departamento de Biologia, Instituto de Ciências Naturais, Universidade Federal de Lavas, Lavras, Minas Gerais, Brazil.
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5
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McCartney AM, McGovern HT, De Foe A. Psychedelic assisted therapy for major depressive disorder: Recent work and clinical directions. JOURNAL OF PSYCHEDELIC STUDIES 2022. [DOI: 10.1556/2054.2022.00211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
Psychedelic substances such as psilocybin and ketamine may represent the future of antidepressant treatment, due to their rapid and prolonged effects on mood and cognition. The current body of psychedelic research has focused on administration and treatment within a psychiatric context. Here, instead, we put to the test the contention that it is necessary to evaluate the current state of this literature from a broader biopsychosocial perspective. Examining these arguably neglected social and psychological aspects of psychedelic treatment can provide a more holistic understanding of the interplay between the interconnected domains. This review of six major clinical trials applies a biopsychosocial model to evaluate the antidepressant effects of psilocybin and ketamine assisted therapy. We conclude that combination psychedelic treatment and psychotherapy facilitate more enduring and profound antidepressant effects than produced by ketamine or psilocybin alone. Emphasising the advantages of therapeutic intervention will encourage those who may attempt to self-medicate with psychedelics to instead seek a framework of psychological support, minimising associated risks of unregulated use.
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Affiliation(s)
| | | | - Alexander De Foe
- The Royal Melbourne Institute of Technology, Melbourne, Australia
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6
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Niquini FM, Machado PH, Valadares Rodrigues JH, Pontes-Silva AV, Figueiredo RC, Silveira RG, Corrêa RS. On the experimental and theoretical calculations of rotameric conformations of a new Schiff base derived from amantadine. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132489] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Salinas M, Calva J, Cartuche L, Valarezo E, Armijos C. Chemical Composition, Enantiomeric Distribution and Anticholinesterase and Antioxidant Activity of the Essential Oil of Diplosthephium juniperinum. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11091188. [PMID: 35567189 PMCID: PMC9105165 DOI: 10.3390/plants11091188] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 04/19/2022] [Accepted: 04/21/2022] [Indexed: 05/27/2023]
Abstract
The aim of this study was to extract and identify the chemical compounds of Diplosthephium juniperinum essential oil (EO) from Ecuador and to assess its anticholinesterase and antioxidant properties. The EO chemical composition was determined by GC−MS. A total of 74 constituents of EO were identified, representing 97.27% in DB-5ms and 96.06% in HP-INNOWax of the total EO. The major constituents (>4.50%) identified were: α-pinene (21.52, 22.04%), geranyl acetate (10.54, 7.78%), silphiper-fol-5-ene (8.67, 7.38%), α-copaene (8.26, 8.18%), 7-epi-silphiperfol-5-ene (4.93, 5.95%), and germacrene D (4.91, 6.00%). Enantioselective analysis of the volatile fraction of D. juniperinum showed: (+)-α-pinene as a pure enantiomer and 5 pairs of enantiomeric compounds. Among them, (−)-β-Pinene and (−)-Germacrene D presented a high enantiomeric excess of 93.23 and 84.62%, respectively, while (−)-α-Thujene, (−)-Sabinene and (S)-4-Terpineol with a lower enantiomeric excess of 56.34, 47.84 and 43.11%, respectively. A moderate inhibitory effect was observed for Acetylcholinesterase (AChE) and Butyrylcholinesterase (BuChE) enzymes with IC50 values of 67.20 ± 7.10 and 89.00 ± 9.90 µg/mL, respectively. A lower antioxidant potential was observed for the EO measured through DPPH and ABTS radical scavenging assays with SC50 values of 127.03 and >1000 µg/mL, respectively. To the best of our knowledge, this is the first report of the chemical composition, enantiomeric distribution and, anticholinesterase and antioxidant potential of the EO of D. juniperinum. As future perspective, further in-vivo studies could be conducted to confirm the anticholinesterase potential of the EO.
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Affiliation(s)
- Melissa Salinas
- Maestría en Química Aplicada, Universidad Técnica Particular de Loja, San Cayetano s/n, Loja 1101608, Ecuador;
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador; (J.C.); (L.C.); (E.V.)
| | - James Calva
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador; (J.C.); (L.C.); (E.V.)
| | - Luis Cartuche
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador; (J.C.); (L.C.); (E.V.)
| | - Eduardo Valarezo
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador; (J.C.); (L.C.); (E.V.)
| | - Chabaco Armijos
- Departamento de Química y Ciencias Exactas, Universidad Técnica Particular de Loja, Loja 1101608, Ecuador; (J.C.); (L.C.); (E.V.)
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8
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Zheng Y, Chen Y, Wu Y, Liu X, Wang Y. The chloroplast genome of aromatic plants Cinnamomum pauciflorum (Lauraceae). Mitochondrial DNA B Resour 2022; 7:585-586. [PMID: 35386635 PMCID: PMC8979523 DOI: 10.1080/23802359.2022.2057245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Cinnamomum pauciflorum is a valuable aromatic tree of the genus Cinnamomum Trew in the family Lauraceae. To better determine its phylogenetic location with other Cinnamomum species, the complete chloroplast (cp) genome of C. pauciflorum was sequenced. The total cp genome size is 152,766 bp, consisting of a pair of inverted repeats (IRa/b) with a length of 20,074 bp separated by a large single-copy region (LSC) and a small single-copy region (SSC) which are 93,693 and 18,925 bp, respectively. The overall GC content of the cp genome is 39.14%. Maximum-likelihood analysis showed that C. pauciflorum has phylogenetic affinities with Cinnamomum osmophloeum, Cinnamomum aromaticum, Cinnamomum mollifolium, and Cinnamomum tenuipile, providing new insight into the evolution of Lauraceae.
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Affiliation(s)
- Yongjie Zheng
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
- Forestry Faculty, Nanjing Forestry University, Nanjing, China
- Jiangxi Academy of Forestry, Nanchang, China
| | - Yicun Chen
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
| | - YanFang Wu
- Jiangxi Academy of Forestry, Nanchang, China
| | | | - YangDong Wang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, China
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Devan AR, Nair B, Kumar AR, Gorantla JN, T S A, Nath LR. Unravelling the Immune Modulatory Effect of Indian Spices to Impede the Transmission of COVID-19: A Promising Approach. Curr Pharm Biotechnol 2022; 23:201-220. [PMID: 33593256 DOI: 10.2174/1389201022666210216144917] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 12/24/2020] [Accepted: 12/28/2020] [Indexed: 02/08/2023]
Abstract
Months after WHO declared COVID-19 as a Global Public Health Emergency of International Concern, it does not seem to be flattening the curve as we are still devoid of an effective treatment modality and vaccination is in the first phase in many countries. Amid such uncertainty, being immune is the best strategy to defend against corona attacks. As the whole world is referring back to immune-boosting traditional remedies, interest is rekindled in the Indian system of Medicine, which is gifted with an abundance of herbal medicines as well as remedies. Among them, spices (root, rhizome, seed, fruit, leaf, bud, and flower of various plants used to add taste and flavors to food) are bestowed with immense medicinal potential. A plethora of clinical as well as preclinical studies reported the effectiveness of various spices for various ailments. The potential immune-boosting properties together with their excellent safety profiles are making spices the current choice of phytoresearch as well as the immune-boosting home remedies during these sceptical times. The present review critically evaluates the immune impact of various Indian spices and their potential to tackle the novel coronavirus, with comments on the safety and toxicity aspects of spices.
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Affiliation(s)
- Aswathy R Devan
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, India
| | - Bhagyalakshmi Nair
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, India
| | - Ayana R Kumar
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, India
| | - Jaggaiah N Gorantla
- Department of Chemistry, Wayne State University, Detroit, 48201, Michigan, USA
| | - Aishwarya T S
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, India
| | - Lekshmi R Nath
- Department of Pharmacognosy, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Science Campus, Ponekkara P. O., Kochi, Kerala, 682041, India
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10
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Ojo O, Bugarin A. One-Pot Synthesis of α-Alkyl Styrene Derivatives. ACS OMEGA 2021; 6:20619-20628. [PMID: 34396007 PMCID: PMC8359136 DOI: 10.1021/acsomega.1c02801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
There is a significant need to develop more rapid and efficient routes to styrene derivatives, since they are extensively used in polymer sciences. This manuscript reports a one-pot synthesis of an array of α-alkyl styrene derivatives from readily available natural products (i.e., estragole and safrole). This method is regioselective, producing a rearranged adduct, under transition metal-free conditions. This methodology has broad nucleophile scope, even tolerating sterically hindered nucleophiles; it is general for carbon, nitrogen, oxygen, and sulfur nucleophiles.
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Affiliation(s)
- Olatunji
S. Ojo
- Department
of Chemistry and Biochemistry, University
of Texas at Arlington, Arlington, Texas 76019, United States
| | - Alejandro Bugarin
- Department
of Chemistry and Physics, Florida Gulf Coast
University, Fort Myers, Florida 33965, United States
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11
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Mahanta BP, Bora PK, Kemprai P, Borah G, Lal M, Haldar S. Thermolabile essential oils, aromas and flavours: Degradation pathways, effect of thermal processing and alteration of sensory quality. Food Res Int 2021; 145:110404. [PMID: 34112407 DOI: 10.1016/j.foodres.2021.110404] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/05/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022]
Abstract
Plant-based aroma chemicals, constituting the essential oils play a great role as the natural flavours and preservatives in the food industries. Many of these metabolites are susceptible to degradation under heat (i.e. thermolabile aroma chemicals) which may influence the organoleptic properties of the end-products e.g. essential oil, oleoresin, dry herb, tea and packaged juice. The current review identified in total 42 thermolabile aroma and/or flavour molecules belonging to monoterpenoids, sesquiterpenoids and phenolics. The probable pathway of their degradation and its promoting conditions were also described. Degradation pathways were categorized into five major classes including oxidation, C-C bond cleavage, elimination, hydrolysis and rearrangement. Numerous evidences were cited in support of the thermosensitivity of these phytochemicals under pyrolytic, thermal heating or gas chromatographic conditions. Various post-harvest processes involved in the manufacturing such as drying and distillation of the crops or thermal treatment of the food-products for storage were highlighted as the root cause of degradation. The influence of thermolabile aroma chemicals to maintain the sensory quality of the end-products such as citrus juices, floral oils and thermally cooked foods was discussed in detail. In the present article, detailed insight into the chemical and sensory aspects of thermosensitive aromas and flavours was provided, covering the period from 1990 up to 2020.
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Affiliation(s)
- Bhaskar Protim Mahanta
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, Assam 785006, India; AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Pranjit Kumar Bora
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, Assam 785006, India; AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Phirose Kemprai
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, Assam 785006, India; AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Gitasree Borah
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, Assam 785006, India; AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Mohan Lal
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, Assam 785006, India; AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India
| | - Saikat Haldar
- Agrotechnology and Rural Development Division, CSIR-North East Institute of Science and Technology (NEIST), Jorhat, Assam 785006, India; AcSIR-Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh 201002, India.
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12
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Eid AM, Hawash M. Biological evaluation of Safrole oil and Safrole oil Nanoemulgel as antioxidant, antidiabetic, antibacterial, antifungal and anticancer. BMC Complement Med Ther 2021; 21:159. [PMID: 34051782 PMCID: PMC8164802 DOI: 10.1186/s12906-021-03324-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 05/13/2021] [Indexed: 11/26/2022] Open
Abstract
Background Safrole is a natural compound extracted from various plants, and has shown various biological activities. The current study aimed to investigate the antioxidant, antidiabetic, antimicrobial, and anticancer activity of safrole oil and to study the influence of safrole nanoemulgel on these activities. Methods The antioxidant and antidiabetic in-vitro assays were conducted using standard biomedical methods. The safrole oil nanoemulgel was developed using a self-emulsifying technique. Then the antimicrobial activity of the safrole oil and safrole nanoemulgel were performed on different microbial species, and cytotoxicity was determined against Hep3B cancer cell lines using the MTS assay. Results Safrole oil showed moderate antioxidant activity compared with standard Trolox, with IC50 value 50.28 ± 0.44 and 1.55 ± 0.32 μg/ml, respectively. Moreover, it had potent α-amylase inhibitory activity (IC50 11.36 ± 0.67 μg/ml) compared with Acarbose (IC50 value 5.88 ± 0.63). The safrole nanoemulgel had pseudo-plastic behaviour, droplet sizes below 200 nm, a polydispersity index (PDI) below 0.3, and a zeta potential of less than − 30 mV. Safrole oil has potential antimicrobial and anticancer activities, and these activities were improved with safrole nanoemulgel. Conclusion The safrole oil may be applied for the prevention and treatment of oxidative stress, diabetes, different microbial species and cancer, and these activities could be improved by nano-carriers.
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Affiliation(s)
- Ahmad M Eid
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, P.O. Box 7, Palestine, Nablus.
| | - Mohammed Hawash
- Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, P.O. Box 7, Palestine, Nablus.
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13
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Lunz K, Stappen I. Back to the Roots-An Overview of the Chemical Composition and Bioactivity of Selected Root-Essential Oils. Molecules 2021; 26:3155. [PMID: 34070487 PMCID: PMC8197530 DOI: 10.3390/molecules26113155] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/18/2021] [Accepted: 05/20/2021] [Indexed: 11/30/2022] Open
Abstract
Since ancient times, plant roots have been widely used in traditional medicine for treating various ailments and diseases due to their beneficial effects. A large number of studies have demonstrated that-besides their aromatic properties-their biological activity can often be attributed to volatile constituents. This review provides a comprehensive overview of investigations into the chemical composition of essential oils and volatile components obtained from selected aromatic roots, including Angelica archangelica, Armoracia rusticana, Carlina sp., Chrysopogon zizanioides, Coleus forskohlii, Inula helenium, Sassafras albidum, Saussurea costus, and Valeriana officinalis. Additionally, their most important associated biological impacts are reported, such as anticarcinogenic, antimicrobial, antioxidant, pesticidal, and other miscellaneous properties. Various literature and electronic databases-including PubMed, ScienceDirect, Springer, Scopus, Google Scholar, and Wiley-were screened and data was obtained accordingly. The results indicate the promising properties of root-essential oils and their potential as a source for natural biologically active products for flavor, pharmaceutical, agricultural, and fragrance industries. However, more research is required to further establish the mechanism of action mediating these bioactivities as well as essential oil standardization because the chemical composition often strongly varies depending on external factors.
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Affiliation(s)
| | - Iris Stappen
- Department of Pharmaceutical Sciences, University of Vienna, 1090 Vienna, Austria;
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14
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Comparative metabolome classification of desert truffles Terfezia claveryi and Terfezia boudieri via its aroma and nutrients profile. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111046] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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15
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Subaharan K, Senthoorraja R, Manjunath S, Thimmegowda GG, Pragadheesh VS, Bakthavatsalam N, Mohan MG, Senthil-Nathan S, David KJ, Basavarajappa S, Ballal C. Toxicity, behavioural and biochemical effect of Piper betle L. essential oil and its constituents against housefly, Musca domestica L. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 174:104804. [PMID: 33838705 DOI: 10.1016/j.pestbp.2021.104804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/15/2021] [Accepted: 02/20/2021] [Indexed: 05/06/2023]
Abstract
Housefly, Musca domestica L. is a pest of public health importance and is responsible for spreading diseases like typhoid, diarrhoea, plague etc. Indiscriminate reliance on synthetic insecticides has led to development of insecticide resistance and ill effect to humans and nontarget animals. This demands an alternative and safer pest control option. This study evaluates the biological effect of Piper betle L essential oil and its constituent eugenol, eugenol acetate, and β - caryophyllene on the housefly. The major components present in P. betel EO were safrole (44.25%), eugenol (5.16%), β -caryophyllene (5.98%), β -selinene (5.93%), α-selinene (5.27%) and eugenol acetate (9.77%). Eugenol caused 4.5fold higher ovicidal activity (EC50 86.99 μg/ml) than P. betle EO (EC50 390.37 μg/ml). Eugenol caused fumigant toxicity to adults (LC50 88.38 mg/dm3). On contact toxicity by topical application, eugenol acetate, eugenol and β-caryophyllene caused higher mortality to larval and adult stages than EO. FESEM (Field Emission Scanning Electron Microscope) images reveal that exposure to P. betle EO causes the shrinkage of the larval cuticle. Both EO and eugenol induced the detoxifying enzymes Carboxyl esterase (Car E) and Glutathione S - transferases (GST) in larvae and adults. EO and eugenol at 0.2% caused effective repellence and oviposition deterrence to M. domestica adults and this merits their use as alternative strategy to manage M. domestica.
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Affiliation(s)
- Kesavan Subaharan
- Division of Germplasm Conservation and Utilization, ICAR - National Bureau of Agricultural Insect Resources, Bengaluru 560024, India.
| | - Rajendran Senthoorraja
- Division of Germplasm Conservation and Utilization, ICAR - National Bureau of Agricultural Insect Resources, Bengaluru 560024, India; DOS in Zoology, University of Mysore, Mysore 570006, India
| | - Sowmya Manjunath
- Division of Germplasm Conservation and Utilization, ICAR - National Bureau of Agricultural Insect Resources, Bengaluru 560024, India
| | | | - Vppalayam Shanmugam Pragadheesh
- National Centre for Biological Sciences - TIFR, Bengaluru 560065, India; CSIR- Central Institute of Medicinal and Aromatic Plants, Regional Centre, Bengaluru 560065, India
| | - Nandagopal Bakthavatsalam
- Division of Germplasm Conservation and Utilization, ICAR - National Bureau of Agricultural Insect Resources, Bengaluru 560024, India
| | - Muthu Gounder Mohan
- Division of Germplasm Conservation and Utilization, ICAR - National Bureau of Agricultural Insect Resources, Bengaluru 560024, India
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli 627412, Tamil Nadu, India
| | - Karamankodu Jacob David
- Division of Germplasm Conservation and Utilization, ICAR - National Bureau of Agricultural Insect Resources, Bengaluru 560024, India
| | | | - Chandish Ballal
- Division of Germplasm Conservation and Utilization, ICAR - National Bureau of Agricultural Insect Resources, Bengaluru 560024, India
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16
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Kliszcz A, Danel A, Puła J, Barabasz-Krasny B, Możdżeń K. Fleeting Beauty-The World of Plant Fragrances and Their Application. Molecules 2021; 26:molecules26092473. [PMID: 33922689 PMCID: PMC8122868 DOI: 10.3390/molecules26092473] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/14/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022] Open
Abstract
This article is devoted to some aspects of the fragrant substances of plant origin applied in the food industry and perfumery as well. Since antiquity many extractive techniques have been developed to obtain essential oils. Some of them are still applied, but new ones, like microwave or ultrasound-assisted extractions, are more and more popular and they save time and cost. Independently of the procedure, the resulting essential oils are the source of many so-called isolates. These can be applied as food additives, medicines, or can be used as starting materials for organic synthesis. Some substances exist in very small amounts in plant material so the extraction is not economically profitable but, after their chemical structures were established and synthetic procedures were developed, in some cases they are prepared on an industrial scale. The substances described below are only a small fraction of the 2000–3000 fragrant molecules used to make our life more enjoyable, either in food or perfumes. Additionally, a few examples of allelopathic fragrant compounds, present in their natural state, will be denoted and some of their biocidal features will be mentioned as an arising “green” knowledge in agriculture.
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Affiliation(s)
- Angelika Kliszcz
- Department of Agroecology and Crop Production, Faculty of Agriculture and Economics, University of Agriculture, Mickiewicza 21 Ave, 31-120 Krakow, Poland;
- Correspondence:
| | - Andrzej Danel
- Faculty of Materials Engineering and Physics, Krakow University of Technology, Podchorążych St. 1, 30-084 Krakow, Poland;
| | - Joanna Puła
- Department of Agroecology and Crop Production, Faculty of Agriculture and Economics, University of Agriculture, Mickiewicza 21 Ave, 31-120 Krakow, Poland;
| | - Beata Barabasz-Krasny
- Institute of Biology, Pedagogical University of Krakow, Podchorążych 2 St., 30-084 Kraków, Poland; (B.B.-K.); (K.M.)
| | - Katarzyna Możdżeń
- Institute of Biology, Pedagogical University of Krakow, Podchorążych 2 St., 30-084 Kraków, Poland; (B.B.-K.); (K.M.)
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17
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Tetrahydropiperic acid (THPA) conjugated cationic hybrid dipeptides as antimicrobial agents. J Antibiot (Tokyo) 2021; 74:480-483. [PMID: 33767455 DOI: 10.1038/s41429-021-00419-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 02/22/2021] [Accepted: 03/07/2021] [Indexed: 11/08/2022]
Abstract
The present work describes the synthesis of hybrid dipeptides H-Lys-Gpn-PEA, C1; H-Lys-β3,3AC6C-PEA, C2, and THPA conjugated dipeptides, THPA-Lys-Gpn-PEA, C3, and THPA-Lys-β3,3AC6C-PEA, C4. All the peptides were evaluated against both Gram-negative and Gram-positive bacterial strains. Among all, peptide C4 exhibited the most potent activity with MIC 1.56 μM against P. aeruginosa (MTCC 424) and S. aureus (MTCC 737). Further, time-kill kinetics, fluorescence assays, and scanning electron microscopy (SEM) studies were performed in order to understand the mechanism of action and efficacy of peptide C4, The fluorescence assays and SEM images demonstrated the bacterial killing through membrane disruption. The peptide C4 exhibited very low hemolytic activity with negligible cytotoxicity against normal human breast cell line FR2.
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18
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Williams MT, Reed S, George J. Culture and psychedelic psychotherapy: Ethnic and racial themes from three Black women therapists. JOURNAL OF PSYCHEDELIC STUDIES 2021. [DOI: 10.1556/2054.2020.00137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractPsychedelic medicine is an emerging field of research and practice that examines the psychotherapeutic effects of substances classified as hallucinogens on the human mind, body, and spirit. Current research explores the safety and efficacy of these substances for mental health disorders including anxiety, depression, and posttraumatic stress disorder (PTSD). Although current studies explore psychotherapeutic effects from a biomedical perspective, gaps in awareness around cultural issues in the therapeutic process are prominent. African Americans have been absent from psychedelic research as both participants and researchers, and little attention has been paid to the potential of psychedelics to address traumas caused by racialization. This paper examines cultural themes and clinical applications from the one-time use of 3,4-methylenedioxymethamphetamine (MDMA) as part of an US Food and Drug Administration (FDA)-approved clinical trial and training exercise for three African American female therapists. The primary themes that emerged across the varied experiences centered on strength, safety, connection, and managing oppression/racialization. The participants' experiences were found to be personally meaningful and instructive for how Western models of psychedelic-assisted psychotherapy could be more effective and accessible to the Black community. Included is a discussion of the importance of facilitator training to make best use of emerging material when it includes cultural, racial, and spiritual themes. A lack of knowledge and epistemic humility can create barriers to treatment for underserved populations. Implications for future research and practice for marginalized cultural groups are also discussed, including consideration of Functional Analytic Psychotherapy (FAP) as an adjunct to the psychedelic-therapy approaches currently advanced. As women of color are among the most stigmatized groups of people, it is essential to incorporate their perspectives into the literature to expand conversations about health equity.
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Affiliation(s)
- Monnica T. Williams
- 1Department of Psychological Sciences, University of Connecticut, Storrs, CT, USA
- 2Behavioral Wellness Clinic, LLC, Tolland, CT, USA
- 3School of Psychology, University of Ottawa, Ottawa, ON, Canada
| | - Sara Reed
- 1Department of Psychological Sciences, University of Connecticut, Storrs, CT, USA
- 2Behavioral Wellness Clinic, LLC, Tolland, CT, USA
| | - Jamilah George
- 1Department of Psychological Sciences, University of Connecticut, Storrs, CT, USA
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19
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Azhar MAM, Salleh WMNHW, Khamis S. Essential oil composition of three Cryptocarya species from Malaysia. Z NATURFORSCH C 2020; 75:297-301. [PMID: 32452825 DOI: 10.1515/znc-2020-0079] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 04/30/2020] [Indexed: 11/15/2022]
Abstract
Cryptocarya species are mainly distributed in Africa, Asia, Australia and South America, widely used in traditional medicines for the treatment of skin infections and diarrhea. The present investigation reports on the extraction by hydrodistillation and the chemical composition of three Cryptocarya species (Cryptocarya impressa, Cryptocarya infectoria, and Cryptocarya rugulosa) essential oils from Malaysia. The chemical composition of these essential oils was fully characterized by gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS). A total of 51 components were identified in C. impressa, C. infectoria, and C. rugulosa essential oils representing 91.6, 91.4, and 83.0% of the total oil, respectively. The high percentages of α-cadinol (40.7%) and 1,10-di-epi-cubenol (13.4%) were found in C. impressa oil. β-Caryophyllene (25.4%) and bicyclogermacrene (15.2%) were predominate in C. infectoria oil. While in C. rugulosa oil, bicyclogermacrene (15.6%), δ-cadinene (13.8%), and α-copaene (12.3%) were predominate. To the best of our knowledge, there is no report on the essential oil composition of these three species.
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Affiliation(s)
- Muhammad Ammar Mohd Azhar
- Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris (UPSI), Tanjung Malim, 35900, Perak, Malaysia
| | - Wan Mohd Nuzul Hakimi Wan Salleh
- Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris (UPSI), Tanjung Malim, 35900, Perak, Malaysia
| | - Shamsul Khamis
- School of Environmental and Natural Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, 43600, Selangor, Malaysia
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20
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Armanino N, Charpentier J, Flachsmann F, Goeke A, Liniger M, Kraft P. Heiße Luft oder cooler Duft? Die Trends der letzten 20 Jahre in der Riechstoffchemie. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Nicolas Armanino
- Givaudan Schweiz AGFragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Schweiz
| | - Julie Charpentier
- Givaudan Schweiz AGFragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Schweiz
| | - Felix Flachsmann
- Givaudan Schweiz AGFragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Schweiz
| | - Andreas Goeke
- Givaudan Schweiz AGFragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Schweiz
| | - Marc Liniger
- Givaudan Schweiz AGFragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Schweiz
| | - Philip Kraft
- Givaudan Schweiz AGFragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Schweiz
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21
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Armanino N, Charpentier J, Flachsmann F, Goeke A, Liniger M, Kraft P. What's Hot, What's Not: The Trends of the Past 20 Years in the Chemistry of Odorants. Angew Chem Int Ed Engl 2020; 59:16310-16344. [DOI: 10.1002/anie.202005719] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Indexed: 01/05/2023]
Affiliation(s)
- Nicolas Armanino
- Givaudan Schweiz AG Fragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Switzerland
| | - Julie Charpentier
- Givaudan Schweiz AG Fragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Switzerland
| | - Felix Flachsmann
- Givaudan Schweiz AG Fragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Switzerland
| | - Andreas Goeke
- Givaudan Schweiz AG Fragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Switzerland
| | - Marc Liniger
- Givaudan Schweiz AG Fragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Switzerland
| | - Philip Kraft
- Givaudan Schweiz AG Fragrances S&T, Ingredients Research Kemptpark 50 8310 Kemptthal Switzerland
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22
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Shetgaonkar SE, Singh FV. Base-mediated alternate route for multi-functionalized allylbenzenes using ring transformation strategy. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1782430] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Samata E. Shetgaonkar
- Chemistry Division, School of Advanced Sciences, VIT University, Chennai, Tamil Nadu, India
| | - Fateh V. Singh
- Chemistry Division, School of Advanced Sciences, VIT University, Chennai, Tamil Nadu, India
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