1
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Tang M, Xu X, Liu Y, Li J, Du G, Lv X, Liu L. Combinatorial Metabolic Engineering for Improving Betulinic Acid Biosynthesis in Saccharomyces cerevisiae. ACS Synth Biol 2024; 13:1798-1808. [PMID: 38748665 DOI: 10.1021/acssynbio.4c00104] [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] [Indexed: 06/22/2024]
Abstract
Betulinic acid (BA) is a lupane-type triterpenoid with potent anticancer and anti-HIV activities. Its great potential in clinical applications necessitates the development of an efficient strategy for BA synthesis. This study attempted to achieve efficient BA biosynthesis in Saccharomyces cerevisiae using systematic metabolic engineering strategies. First, a de novo BA biosynthesis pathway in S. cerevisiae was constructed, which yielded a titer of 14.01 ± 0.21 mg/L. Then, by enhancing the BA synthesis pathway and dynamic inhibition of the competitive pathway, a greater proportion of the metabolic flow was directed toward BA synthesis, achieving a titer of 88.07 ± 5.83 mg/L. Next, acetyl-CoA and NADPH supply was enhanced, which increased the BA titer to 166.43 ± 1.83 mg/L. Finally, another BA synthesis pathway in the peroxisome was constructed. Dual regulation of the peroxisome and cytoplasmic metabolism increased the BA titer to 210.88 ± 4.76 mg/L. Following fed-batch fermentation process modification, the BA titer reached 682.29 ± 8.16 mg/L. Overall, this work offers a guide for building microbial cell factories that are capable of producing terpenoids with efficiency.
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Affiliation(s)
- Mei Tang
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Xianhao Xu
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Yanfeng Liu
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Jianghua Li
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Guocheng Du
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Xueqin Lv
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Long Liu
- Science Center for Future Foods, Jiangnan University, Wuxi 214122, China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
- Institute of Future Food and Technology, JITRI, Yixing 214200, China
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2
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Dickey RM, Gopal MR, Nain P, Kunjapur AM. Recent developments in enzymatic and microbial biosynthesis of flavor and fragrance molecules. J Biotechnol 2024; 389:43-60. [PMID: 38616038 DOI: 10.1016/j.jbiotec.2024.04.004] [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: 02/16/2024] [Revised: 04/08/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
Flavors and fragrances are an important class of specialty chemicals for which interest in biomanufacturing has risen during recent years. These naturally occurring compounds are often amenable to biosynthesis using purified enzyme catalysts or metabolically engineered microbial cells in fermentation processes. In this review, we provide a brief overview of the categories of molecules that have received the greatest interest, both academically and industrially, by examining scholarly publications as well as patent literature. Overall, we seek to highlight innovations in the key reaction steps and microbial hosts used in flavor and fragrance manufacturing.
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Affiliation(s)
- Roman M Dickey
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19711, USA
| | - Madan R Gopal
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19711, USA
| | - Priyanka Nain
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19711, USA
| | - Aditya M Kunjapur
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19711, USA.
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3
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Pizzone DM, Angellotti G, Carabetta S, Di Sanzo R, Russo M, Mauriello F, Ciriminna R, Pagliaro M. The LimoFish Circular Economy Process for the Marine Bioeconomy. CHEMSUSCHEM 2024:e202301826. [PMID: 38804683 DOI: 10.1002/cssc.202301826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 05/22/2024] [Accepted: 05/28/2024] [Indexed: 05/29/2024]
Abstract
The outcomes of applying the zero-waste extraction "LimoFish" process based on defatting fish processing waste with limonene to leftovers of European sardine (Sardina pilchardus) and European anchovy (Engraulis encrasicolus), compared to conventional extraction with oil-derived solvents such as n-hexane and with petroleum ether, show that the process has general applicability. Meeting the principles of green extraction and those of the marine biorefinery requiring high process efficiency, the process establishes an "innovation through integration" circular economy production route enabling the marine bioeconomy.
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Affiliation(s)
- Daniela Maria Pizzone
- Dipartimento di Ingegneria Civile, dell'Energia, dell'Ambiente e dei Materiali, Università degli Studi Mediterranea di Reggio Calabria, 89122, Reggio Calabria, Italy
| | - Giuseppe Angellotti
- Istituto per lo Studio dei Materiali Nanostrutturati, CNR, via U. La Malfa 153, 90146, Palermo, Italy
| | - Sonia Carabetta
- Dipartimento di Agraria, Università degli Studi Mediterranea di Reggio Calabria, 89122, Reggio Calabria, Italy
| | - Rosa Di Sanzo
- Dipartimento di Agraria, Università degli Studi Mediterranea di Reggio Calabria, 89122, Reggio Calabria, Italy
| | - Mariateresa Russo
- Dipartimento di Agraria, Università degli Studi Mediterranea di Reggio Calabria, 89122, Reggio Calabria, Italy
| | - Francesco Mauriello
- Dipartimento di Ingegneria Civile, dell'Energia, dell'Ambiente e dei Materiali, Università degli Studi Mediterranea di Reggio Calabria, 89122, Reggio Calabria, Italy
| | - Rosaria Ciriminna
- Istituto per lo Studio dei Materiali Nanostrutturati, CNR, via U. La Malfa 153, 90146, Palermo, Italy
| | - Mario Pagliaro
- Istituto per lo Studio dei Materiali Nanostrutturati, CNR, via U. La Malfa 153, 90146, Palermo, Italy
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4
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de Sousa DP, de Assis Oliveira F, Arcanjo DDR, da Fonsêca DV, Duarte ABS, de Oliveira Barbosa C, Ong TP, Brocksom TJ. Essential Oils: Chemistry and Pharmacological Activities-Part II. Biomedicines 2024; 12:1185. [PMID: 38927394 PMCID: PMC11200837 DOI: 10.3390/biomedicines12061185] [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: 04/24/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024] Open
Abstract
The importance of essential oils and their components in the industrial sector is attributed to their chemical characteristics and their application in the development of products in the areas of cosmetology, food, and pharmaceuticals. However, the pharmacological properties of this class of natural products have been extensively investigated and indicate their applicability for obtaining new drugs. Therefore, this review discusses the use of these oils as starting materials to synthesize more complex molecules and products with greater commercial value and clinic potential. Furthermore, the antiulcer, cardiovascular, and antidiabetic mechanisms of action are discussed. The main mechanistic aspects of the chemopreventive properties of oils against cancer are also presented. The data highlight essential oils and their derivatives as a strategic chemical group in the search for effective therapeutic agents against various diseases.
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Affiliation(s)
| | | | - Daniel Dias Rufino Arcanjo
- LAFMOL—Laboratory of Functional and Molecular Studies in Physiopharmacology, Department of Biophysics and Physiology, Federal University of Piaui, Teresina 64049-550, Brazil; (D.D.R.A.); (C.d.O.B.)
| | - Diogo Vilar da Fonsêca
- Collegiate of Medicine, Federal University of São Francisco Valley, Bahia 48607-190, Brazil;
| | - Allana Brunna S. Duarte
- Laboratory of Pharmaceutical Chemistry, Federal University of Paraíba, João Pessoa 58051-900, Brazil;
| | - Celma de Oliveira Barbosa
- LAFMOL—Laboratory of Functional and Molecular Studies in Physiopharmacology, Department of Biophysics and Physiology, Federal University of Piaui, Teresina 64049-550, Brazil; (D.D.R.A.); (C.d.O.B.)
| | - Thomas Prates Ong
- Department of Food Science and Nutrition, School of Pharmaceutical Sciences, University of São Paulo (USP), São Paulo 05508-000, Brazil;
- Food Research Center (FoRC), University of São Paulo, São Paulo 05508-000, Brazil
| | - Timothy John Brocksom
- Department of Chemistry, Federal University of São Carlos, São Carlos 13565-905, Brazil;
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5
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Bernard A, Cha S, Shin H, Lee D, Hahn JS. Efficient production of (S)-limonene and geraniol in Saccharomyces cerevisiae through the utilization of an Erg20 mutant with enhanced GPP accumulation capability. Metab Eng 2024; 83:183-192. [PMID: 38631459 DOI: 10.1016/j.ymben.2024.04.003] [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: 11/01/2023] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 04/19/2024]
Abstract
Monoterpenes and monoterpenoids such as (S)-limonene and geraniol are valuable chemicals with a wide range of applications, including cosmetics, pharmaceuticals, and biofuels. Saccharomyces cerevisiae has proven to be an effective host to produce various terpenes and terpenoids. (S)-limonene and geraniol are produced from geranyl pyrophosphate (GPP) through the enzymatic actions of limonene synthase (LS) and geraniol synthase (GES), respectively. However, a major hurdle in their production arises from the dual functionality of the Erg20, a farnesyl pyrophosphate (FPP) synthase, responsible for generating GPP. Erg20 not only synthesizes GPP by condensing isopentenyl pyrophosphate (IPP) with dimethylallyl pyrophosphate but also catalyzes further condensation of IPP with GPP to produce FPP. In this study, we have tackled this issue by harnessing previously developed Erg20 mutants, Erg20K197G (Erg20G) and Erg20F96W, N127W (Erg20WW), which enhance GPP accumulation. Through a combination of these mutants, we generated a novel Erg20WWG mutant with over four times higher GPP accumulating capability than Erg20WW, as observed through geraniol production levels. The Erg20WWG mutant was fused to the LS from Mentha spicata or the GES from Catharanthus roseus for efficient conversion of GPP to (S)-limonene and geraniol, respectively. Further improvements were achieved by localizing the entire mevalonate pathway and the Erg20WWG-fused enzymes in peroxisomes, while simultaneously downregulating the essential ERG20 gene using the glucose-sensing HXT1 promoter. In the case of (S)-limonene production, additional Erg20WWG-LS was expressed in the cytosol. As a result, the final strains produced 1063 mg/L of (S)-limonene and 1234 mg/L of geraniol by fed-batch biphasic fermentations with ethanol feeding. The newly identified Erg20WWG mutant opens doors for the efficient production of various other GPP-derived chemicals including monoterpene derivatives and cannabinoids.
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Affiliation(s)
- Armand Bernard
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seungwoo Cha
- Bio-MAX/N-Bio, Institute of BioEngineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Hyesoo Shin
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Daeyeol Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Ji-Sook Hahn
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.
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6
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Clerget M, Gagnon E, Claverie JP. Photopolymerization of Limonene Dioxide and Vegetable Oils as Biobased 3D-Printing Stereolithographic Formulation. Polymers (Basel) 2024; 16:965. [PMID: 38611223 PMCID: PMC11013986 DOI: 10.3390/polym16070965] [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: 02/19/2024] [Revised: 03/19/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
Epoxidized vegetable oils and limonene dioxide, a bis-epoxide derived from the terpene limonene, are photo-copolymerized to yield highly crosslinked networks with high conversion of all epoxide groups at ambient temperature. However, the slow polymerization of such biobased formulation polymerizes is not compatible for a use in a commercial SLA 3D printer. Adding an acrylated epoxidized vegetable oil to the bis-epoxide leads to a decrease of curing time and an increase in LDO conversion to polymer. For example, in a 60:40 wt:wt mixture of LDO and epoxidized soybean oil, the conversions of both exocyclic and endocyclic epoxide groups of LDO are ≥95%. These formulations were successfully used in SLA 3D printers, leading to generation of hard and dry complex objects using biobased formulations.
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Affiliation(s)
- Mégane Clerget
- Chemistry Department, Université de Sherbrooke, 2500 Boulevard de l’Université, Sherbrooke, QC J1K 2R1, Canada
- Soprema Canada, 1688 rue Jean Berchmans Michaud, Drummondville, QC J2C 8E9, Canada
| | - Eric Gagnon
- Soprema Canada, 1688 rue Jean Berchmans Michaud, Drummondville, QC J2C 8E9, Canada
| | - Jerome P. Claverie
- Chemistry Department, Université de Sherbrooke, 2500 Boulevard de l’Université, Sherbrooke, QC J1K 2R1, Canada
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7
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Faherty T, Badri H, Hu D, Voliotis A, Pope FD, Mudway I, Smith J, McFiggans G. HIPTox-Hazard Identification Platform to Assess the Health Impacts from Indoor and Outdoor Air Pollutant Exposures, through Mechanistic Toxicology: A Single-Centre Double-Blind Human Exposure Trial Protocol. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2024; 21:284. [PMID: 38541284 PMCID: PMC11154498 DOI: 10.3390/ijerph21030284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/14/2024] [Accepted: 02/24/2024] [Indexed: 06/09/2024]
Abstract
Over the past decade, our understanding of the impact of air pollution on short- and long-term population health has advanced considerably, focusing on adverse effects on cardiovascular and respiratory systems. There is, however, increasing evidence that air pollution exposures affect cognitive function, particularly in susceptible groups. Our study seeks to assess and hazard rank the cognitive effects of prevalent indoor and outdoor pollutants through a single-centre investigation on the cognitive functioning of healthy human volunteers aged 50 and above with a familial predisposition to dementia. Participants will all undertake five sequential controlled exposures. The sources of the air pollution exposures are wood smoke, diesel exhaust, cleaning products, and cooking emissions, with clean air serving as the control. Pre- and post-exposure spirometry, nasal lavage, blood sampling, and cognitive assessments will be performed. Repeated testing pre and post exposure to controlled levels of pollutants will allow for the identification of acute changes in functioning as well as the detection of peripheral markers of neuroinflammation and neuronal toxicity. This comprehensive approach enables the identification of the most hazardous components in indoor and outdoor air pollutants and further understanding of the pathways contributing to neurodegenerative diseases. The results of this project have the potential to facilitate greater refinement in policy, emphasizing health-relevant pollutants and providing details to aid mitigation against pollutant-associated health risks.
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Affiliation(s)
- Thomas Faherty
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Huda Badri
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, 2nd Floor Education and Research Centre, Wythenshawe Hospital, Southmoor Rd., Manchester M23 9LT, UK; (H.B.); (J.S.)
- Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
| | - Dawei Hu
- Centre for Atmospheric Sciences, Department of Earth and Environmental Science, School of Natural Sciences, University of Manchester, Manchester M13 9PL, UK; (D.H.); (A.V.); (G.M.)
| | - Aristeidis Voliotis
- Centre for Atmospheric Sciences, Department of Earth and Environmental Science, School of Natural Sciences, University of Manchester, Manchester M13 9PL, UK; (D.H.); (A.V.); (G.M.)
- National Centre for Atmospheric Science, Department of Earth and Environmental Science, University of Manchester, Manchester M13 9PL, UK
| | - Francis D. Pope
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
| | - Ian Mudway
- MRC Centre for Environment and Health, Imperial College London, London W12 0BZ, UK;
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London W12 0BZ, UK
- NIHR Health Protection Research Unit in Chemical and Radiation Threats and Hazards, Imperial College London, London W12 0BZ, UK
| | - Jacky Smith
- Division of Infection, Immunity and Respiratory Medicine, University of Manchester, 2nd Floor Education and Research Centre, Wythenshawe Hospital, Southmoor Rd., Manchester M23 9LT, UK; (H.B.); (J.S.)
- Manchester University NHS Foundation Trust, Manchester M13 9WL, UK
| | - Gordon McFiggans
- Centre for Atmospheric Sciences, Department of Earth and Environmental Science, School of Natural Sciences, University of Manchester, Manchester M13 9PL, UK; (D.H.); (A.V.); (G.M.)
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8
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Gu S, Luo W, Charmchi A, McWhirter KJ, Rosenstiel T, Pankow J, Faiola CL. Limonene Enantiomeric Ratios from Anthropogenic and Biogenic Emission Sources. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 2024; 11:130-135. [PMID: 38371653 PMCID: PMC10867824 DOI: 10.1021/acs.estlett.3c00794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 01/26/2024] [Accepted: 01/31/2024] [Indexed: 02/20/2024]
Abstract
Emissions from volatile chemical products (VCPs) have been identified as contributors to air quality degradation in urban areas. Limonene can be a tracer compound for VCPs containing fragrances in densely populated regions, but limonene is also emitted from conifers that are planted in urban areas. This creates challenges for using limonene to estimate VCP emissions. In this study, the -/+ enantiomeric ratios of limonene from VCP and conifer emission sources were quantified to evaluate if this measurement could be used to aid in source apportionment and emission inventory development. Samples were analyzed using a gas chromatograph equipped with a chiral column and mass spectrometry. The results demonstrate that limonene exhibits distinct enantiomeric ratios when sourced from VCPs versus conifers. (+)-Limonene was dominant in VCP sources (>97%), which was not universally true for conifer sources. The results were compared to those of air samples collected outside at two locations and indoors. The levels of (-)-limonene in outdoor air in Irvine and Portland and in indoor air were 50%, 22%, and 4%, respectively. This suggests outdoor limonene had both VCP and plant emission sources while indoor air was dominated by VCP sources. This study demonstrates the potential utility of enantiomeric analysis for improving VCP emission estimates in urban areas.
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Affiliation(s)
- Shan Gu
- Ecology
and Evolutionary Biology, University of
California Irvine, Irvine, California 92697, United States
| | - Wentai Luo
- Civil
and Environmental Engineering, Portland
State University, Portland, Oregon 97201, United States
| | - Avisa Charmchi
- Ecology
and Evolutionary Biology, University of
California Irvine, Irvine, California 92697, United States
- Chemistry, University
of California Irvine, Irvine, California 92697, United States
| | - Kevin J. McWhirter
- Civil
and Environmental Engineering, Portland
State University, Portland, Oregon 97201, United States
| | - Todd Rosenstiel
- Biology, Portland State University, Portland, Oregon 97201, United States
| | - James Pankow
- Civil
and Environmental Engineering, Portland
State University, Portland, Oregon 97201, United States
| | - Celia L. Faiola
- Ecology
and Evolutionary Biology, University of
California Irvine, Irvine, California 92697, United States
- Chemistry, University
of California Irvine, Irvine, California 92697, United States
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9
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Yolsal U, Shaw PJ, Lowy PA, Chambenahalli R, Garden JA. Exploiting Multimetallic Cooperativity in the Ring-Opening Polymerization of Cyclic Esters and Ethers. ACS Catal 2024; 14:1050-1074. [PMID: 38269042 PMCID: PMC10804381 DOI: 10.1021/acscatal.3c05103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/17/2023] [Accepted: 12/19/2023] [Indexed: 01/26/2024]
Abstract
The use of multimetallic complexes is a rapidly advancing route to enhance catalyst performance in the ring-opening polymerization of cyclic esters and ethers. Multimetallic catalysts often outperform their monometallic analogues in terms of reactivity and/or polymerization control, and these improvements are typically attributed to "multimetallic cooperativity". Yet the origins of multimetallic cooperativity often remain unclear. This review explores the key factors underpinning multimetallic cooperativity, including metal-metal distances, the flexibility, electronics and conformation of the ligand framework, and the coordination environment of the metal centers. Emerging trends are discussed to provide insights into why cooperativity occurs and how to harness cooperativity for the development of highly efficient multimetallic catalysts.
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Affiliation(s)
- Utku Yolsal
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Peter J. Shaw
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Phoebe A. Lowy
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Raju Chambenahalli
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Jennifer A. Garden
- School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
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10
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Khanijou JK, Hee YT, Selvarajoo K. Identifying Key In Silico Knockout for Enhancement of Limonene Yield Through Dynamic Metabolic Modelling. Methods Mol Biol 2024; 2745:3-19. [PMID: 38060176 DOI: 10.1007/978-1-0716-3577-3_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Living cells display dynamic and complex behaviors. To understand their response and to infer novel insights not possible with traditional reductionist approaches, over the last few decades various computational modelling methodologies have been developed. In this chapter, we focus on modelling the dynamic metabolic response, using linear and nonlinear ordinary differential equations, of an engineered Escherichia coli MG1655 strain with plasmid pJBEI-6409 that produces limonene. We show the systems biology steps involved from collecting time-series data of living cells, to dynamic model creation and fitting the model with experimental responses using COPASI software.
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Affiliation(s)
- Jasmeet Kaur Khanijou
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Yan Ting Hee
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Kumar Selvarajoo
- Bioinformatics Institute (BII), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore.
- Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore (NUS), Singapore, Republic of Singapore.
- School of Biological Sciences, Nanyang Technological University (NTU), Singapore, Republic of Singapore.
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11
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Xiang Y, Xu H. Occurrence, formation, and proteins perturbation of disinfection byproducts in indoor air resulting from chlorine disinfection. CHEMOSPHERE 2023; 343:140182. [PMID: 37716567 DOI: 10.1016/j.chemosphere.2023.140182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/18/2023]
Abstract
Increased amounts of chlorine disinfectant have been sprayed to inactivate viruses in the environment since the COVID-19 pandemic, and the health risk from chemicals, especially disinfection byproducts (DBPs), has unintentionally increased. In this study, we characterized the occurrence of haloacetic acids (HAAs) and trihalomethanes (THMs) in indoor air and evaluated their formation potential from typical indoor ingredients. Subsequently, the adverse effect of chloroacetic acid on A549 cells was depicted at the proteomic, transcriptional and silico levels. The results revealed that the total concentrations of HAAs and THMs ranged from 1.46 to 4.20 μg/m3 in ten indoor environments. Both classes of DBPs could be generated during the chlorination of prevalent terpenes by competing reactions, which are associated with the volatile state of indoor ingredients after disinfection. The C-type lectin receptor signaling pathway and cellular senescence were significantly perturbed pathways, which interfered with the development of lung fibrosis. The negative effect was further investigated by molecular docking and transcription, which showed that HAAs can interact with four C-type lectin receptor proteins by hydrogen bonds and inhibit the mRNA expression of related proteins. This study highlights the potential secondary biological risk caused by intensive DBPs generated from chlorination and draws our attention to the potential environmental factors leading to chronic respiratory disease.
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Affiliation(s)
- Yangwei Xiang
- Department of Lung Transplantation and Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.
| | - Huan Xu
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
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12
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Brenner DJ. The public-health significance of far-UVC-induced indoor ozone and its associated secondary chemistry. Photochem Photobiol 2023. [PMID: 38037431 DOI: 10.1111/php.13892] [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: 08/23/2023] [Revised: 11/14/2023] [Accepted: 11/15/2023] [Indexed: 12/02/2023]
Abstract
There has been much recent interest in whole-room far-UVC (wavelength around 222 nm) to markedly and safely reduce overall levels of airborne pathogens in occupied indoor locations. Far-UVC light produces very low levels of ozone-in real-world scenarios induced ozone levels of less than 10 ppb, and much less in moderately or well-ventilated rooms compliant with US far-UVC dose recommendations, and very much less in rooms compliant with international far-UVC dose standards. At these very low ozone levels, there is no epidemiological evidence of increased health risks from any of the very large outdoor ozone studies, whether from ozone alone or from ozone plus associated pollutants. Indoors, at the low ozone concentrations of relevance here, ozone does not react rapidly enough with preexisting airborne volatile organic compounds to compete with even extremely low levels of room ventilation, so significant ozone-induced ultrafine particle production is very unlikely. Direct measurements in real-life room scenarios are consistent with these conclusions. A potential exception is the cleaning material limonene, which has an unusually high ozone interaction cross-section; in the far-UVC context, turning off far-UVC lights during cleaning with limonene products would be reasonable.
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Affiliation(s)
- David J Brenner
- Center for Radiological Research, Columbia University, New York, New York, USA
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13
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Mukhtar Gunam Resul MF, Rehman A, Saleem F, Usman M, López Fernández AM, Eze VC, Harvey AP. Recent advances in catalytic and non-catalytic epoxidation of terpenes: a pathway to bio-based polymers from waste biomass. RSC Adv 2023; 13:32940-32971. [PMID: 38025849 PMCID: PMC10630890 DOI: 10.1039/d3ra04870e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 11/01/2023] [Indexed: 12/01/2023] Open
Abstract
Epoxides derived from waste biomass are a promising avenue for the production of bio-based polymers, including polyamides, polyesters, polyurethanes, and polycarbonates. This review article explores recent efforts to develop both catalytic and non-catalytic processes for the epoxidation of terpene, employing a variety of oxidizing agents and techniques for process intensification. Experimental investigations into the epoxidation of limonene have shown that these methods can be extended to other terpenes. To optimize the epoxidation of bio-based terpene, there is a need to develop continuous processes that address limitations in mass and heat transfer. This review discusses flow chemistry and innovative reactor designs as part of a multi-scale approach aimed at industrial transformation. These methods facilitate continuous processing, improve mixing, and either eliminate or reduce the need for solvents by enhancing heat transfer capabilities. Overall, the objective of this review is to contribute to the development of commercially viable processes for producing bio-based epoxides from waste biomass.
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Affiliation(s)
- Mohamad Faiz Mukhtar Gunam Resul
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK
- Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| | - Abdul Rehman
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK
- Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore Faisalabad Campus Pakistan
| | - Faisal Saleem
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK
- Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore Faisalabad Campus Pakistan
| | - Muhammd Usman
- Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore Faisalabad Campus Pakistan
| | | | - Valentine C Eze
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Adam P Harvey
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK
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14
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Rollin S, Gupta A, Franco CMM, Singh S, Puri M. Development of sustainable downstream processing for nutritional oil production. Front Bioeng Biotechnol 2023; 11:1227889. [PMID: 37885455 PMCID: PMC10598382 DOI: 10.3389/fbioe.2023.1227889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023] Open
Abstract
Nutritional oils (mainly omega-3 fatty acids) are receiving increased attention as critical supplementary compounds for the improvement and maintenance of human health and wellbeing. However, the predominant sources of these oils have historically shown numerous limitations relating to desirability and sustainability; hence the crucial focus is now on developing smarter, greener, and more environmentally favourable alternatives. This study was undertaken to consider and assess the numerous prevailing and emerging techniques implicated across the stages of fatty acid downstream processing. A structured and critical comparison of the major classes of disruption methodology (physical, chemical, thermal, and biological) is presented, with discussion and consideration of the viability of new extraction techniques. Owing to a greater desire for sustainable industrial practices, and a desperate need to make nutritional oils more available; great emphasis has been placed on the discovery and adoption of highly sought-after 'green' alternatives, which demonstrate improved efficiency and reduced toxicity compared to conventional practices. Based on these findings, this review also advocates new forays into application of novel nanomaterials in fatty acid separation to improve the sustainability of nutritional oil downstream processing. In summary, this review provides a detailed overview of the current and developing landscape of nutritional oil; and concludes that adoption and refinement of these sustainable alternatives could promptly allow for development of a more complete 'green' process for nutritional oil extraction; allowing us to better meet worldwide needs without costing the environment.
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Affiliation(s)
- Samuel Rollin
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Adarsha Gupta
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | - Christopher M. M. Franco
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
| | | | - Munish Puri
- Medical Biotechnology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Flinders Health and Medical Research Institute, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
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15
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Usman M, Rehman A, Saleem F, Abbas A, Eze VC, Harvey A. Synthesis of cyclic carbonates from CO 2 cycloaddition to bio-based epoxides and glycerol: an overview of recent development. RSC Adv 2023; 13:22717-22743. [PMID: 37502825 PMCID: PMC10370462 DOI: 10.1039/d3ra03028h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/04/2023] [Indexed: 07/29/2023] Open
Abstract
Anthropogenic carbon dioxide (CO2) emissions contribute significantly to global warming and deplete fossil carbon resources, prompting a shift to bio-based raw materials. The two main technologies for reducing CO2 emissions are capturing and either storing or utilizing it. However, while capture and storage have high reduction potential, they lack economic feasibility. Conversely, by utilizing the CO2 captured from streams and air to produce valuable products, it can become an asset and curb greenhouse gas effects. CO2 is a challenging C1-building block due to its high kinetic inertness and thermodynamic stability, requiring high temperature and pressure conditions and a reactive catalytic system. Nonetheless, cyclic carbonate production by reacting epoxides and CO2 is a promising green and sustainable chemistry reaction, with enormous potential applications as an electrolyte in lithium-ion batteries, a green solvent, and a monomer in polycarbonate production. This review focuses on the most recent developments in the synthesis of cyclic carbonates from glycerol and bio-based epoxides, as well as efficient methods for chemically transforming CO2 using flow chemistry and novel reactor designs.
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Affiliation(s)
- Muhammad Usman
- Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore, Faisalabad Campus Pakistan
- School of Engineering, Newcastle University Newcastle Upon Tyne NE1 7RU UK
| | - Abdul Rehman
- Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore, Faisalabad Campus Pakistan
- School of Engineering, Newcastle University Newcastle Upon Tyne NE1 7RU UK
| | - Faisal Saleem
- Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore, Faisalabad Campus Pakistan
- School of Engineering, Newcastle University Newcastle Upon Tyne NE1 7RU UK
| | - Aumber Abbas
- Songshan Lake Materials Laboratory, University Innovation Park Dongguan 523808 China
| | - Valentine C Eze
- School of Engineering, Newcastle University Newcastle Upon Tyne NE1 7RU UK
| | - Adam Harvey
- School of Engineering, Newcastle University Newcastle Upon Tyne NE1 7RU UK
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16
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Richieu A, Bertrand P. Convergent micro-wave assisted synthesis of quinazolinone and its precursor using the bio-sourced solvent pinane. RSC Adv 2023; 13:20646-20650. [PMID: 37435375 PMCID: PMC10331922 DOI: 10.1039/d3ra03702a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 06/23/2023] [Indexed: 07/13/2023] Open
Abstract
A general microwave synthesis of 4-oxo-3,4-dihydroquinazolin-2-yl propanoic acids and their diamide precursors from the corresponding substituted benzamide and succinic anhydride is described, using pinane as a sustainable solvent that favors the cyclization step. The conditions are some of the most simple and cost effective reported.
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Affiliation(s)
- Antoine Richieu
- Institut de Chimie des Milieux et Matériaux de Poitiers, UMR CNRS 7285 4 rue Michel Brunet, TSA 51106, B27 86073 Poitiers France
| | - Philippe Bertrand
- Institut de Chimie des Milieux et Matériaux de Poitiers, UMR CNRS 7285 4 rue Michel Brunet, TSA 51106, B27 86073 Poitiers France
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17
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Weber IC, Oosthuizen DN, Mohammad RW, Mayhew CA, Pratsinis SE, Güntner AT. Dynamic Breath Limonene Sensing at High Selectivity. ACS Sens 2023. [PMID: 37377394 DOI: 10.1021/acssensors.3c00439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Liver diseases (e.g., cirrhosis, cancer) cause more than two million deaths per year worldwide. This is partly attributed to late diagnosis and insufficient screening techniques. A promising biomarker for noninvasive and inexpensive liver disease screening is breath limonene that can indicate a deficiency of the cytochrome P450 liver enzymes. Here, we introduce a compact and low-cost detector for dynamic and selective breath limonene sensing. It comprises a chemoresistive sensor based on Si/WO3 nanoparticles pre-screened by a packed bed Tenax separation column at room temperature. We demonstrate selective limonene detection down to 20 parts per billion over up to three orders of magnitude higher concentrated acetone, ethanol, hydrogen, methanol, and 2-propanol in gas mixtures, as well as robustness to 10-90% relative humidity. Most importantly, this detector recognizes the individual breath limonene dynamics of four healthy volunteers following the ingestion (swallowing or chewing) of a limonene capsule. Limonene release and subsequent metabolization are monitored from breath measurements in real time and in excellent agreement (R2 = 0.98) with high-resolution proton transfer reaction mass spectrometry. This study demonstrates the potential of the detector as a simple-to-use and noninvasive device for the routine monitoring of limonene levels in exhaled breath to facilitate early diagnosis of liver dysfunction.
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Affiliation(s)
- Ines C Weber
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zürich (USZ) and University of Zürich (UZH), CH-8091 Zürich, Switzerland
| | - Dina N Oosthuizen
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Rawan W Mohammad
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Chris A Mayhew
- Institute for Breath Research, Universität Innsbruck, Innsbruck A-6020, Austria
| | - Sotiris E Pratsinis
- Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
| | - Andreas T Güntner
- Department of Endocrinology, Diabetology, and Clinical Nutrition, University Hospital Zürich (USZ) and University of Zürich (UZH), CH-8091 Zürich, Switzerland
- Human-centered Sensor Laboratory, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092 Zürich, Switzerland
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18
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Silvano S, Proverbio M, Vignali A, Bertini F, Boggioni L. High-Glass-Transition Polyesters Produced with Phthalic Anhydride and Epoxides by Ring-Opening Copolymerization (ROCOP). Polymers (Basel) 2023; 15:2801. [PMID: 37447447 DOI: 10.3390/polym15132801] [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: 05/10/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 07/15/2023] Open
Abstract
Polyesters with a high glass transition temperature above 130 °C were obtained from limonene oxide (LO) or vinylcyclohexene oxide (VCHO) and phthalic anhydride (PA) in the presence of commercial salen-type complexes with different metals-Cr, Al, and Mn-as catalysts in combination with 4-(dimethylamino) pyridine (DMAP), bis-(triphenylphosphorydine) ammonium chloride (PPNCl), and bis-(triphenylphosphoranylidene)ammonium azide (PPNN3) as cocatalysts via alternating ring-opening copolymerization (ROCOP). The effects of the time of precontact between the catalyst and cocatalyst and the polymerization time on the productivity, molar mass (Mw), and glass transition temperature (Tg) were evaluated. The polyesters were characterized by a molar mass (Mw) of up to 14.0 kg/mol, a narrow dispersity Tg of up to 136 °C, and low (<3 mol%) polyether units. For poly(LO-alt-PA) copolymers, biodegradation tests were performed according to ISO 14851 using the respirometric biochemical oxygen demand method. Moreover, the vinyl double bond present in the poly(LO-alt-PA) copolymer chain was functionalized using three different thiols, methyl-3-mercaptopropionate, isooctyl-3-mercaptopropionate, and butyl-3-mercaptopropionate, via a click chemistry reaction. The thermal properties of poly(LO-alt-PA), poly(VCHO-alt-PA) and thiol-modified poly(LO-alt-PA) copolymers were extensively studied by DSC and TGA. Some preliminary compression molding tests were also conducted.
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Affiliation(s)
- Selena Silvano
- Institute of Chemical Science and Technologies-"G. Natta", National Research Council, Via A. Corti 12, 20133 Milan, Italy
- National Interuniversity Consortium of Materials Science and Technology, INSTM, Via Giuseppe Giusti 9, 50121 Firenze, Italy
| | - Matteo Proverbio
- Institute of Chemical Science and Technologies-"G. Natta", National Research Council, Via A. Corti 12, 20133 Milan, Italy
| | - Adriano Vignali
- Institute of Chemical Science and Technologies-"G. Natta", National Research Council, Via A. Corti 12, 20133 Milan, Italy
| | - Fabio Bertini
- Institute of Chemical Science and Technologies-"G. Natta", National Research Council, Via A. Corti 12, 20133 Milan, Italy
| | - Laura Boggioni
- Institute of Chemical Science and Technologies-"G. Natta", National Research Council, Via A. Corti 12, 20133 Milan, Italy
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19
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Santulli F, Grimaldi I, Pappalardo D, Lamberti M, Mazzeo M. Salen-like Chromium and Aluminum Complexes as Catalysts in the Copolymerization of Epoxides with Cyclic Anhydrides for the Synthesis of Polyesters. Int J Mol Sci 2023; 24:10052. [PMID: 37373200 DOI: 10.3390/ijms241210052] [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: 05/05/2023] [Revised: 06/06/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Chromium and aluminum complexes bearing salalen ligands were explored as catalysts for the ring-opening copolymerization (ROCOP) of succinic (SA), maleic (MA), and phthalic (PA) anhydrides with several epoxides: cyclohexene oxide (CHO), propylene oxide (PO), and limonene oxide (LO). Their behavior was compared with that of traditional salen chromium complexes. A completely alternating enchainment of monomers to provide pure polyesters was achieved with all the catalysts when used in combination with 4-(dimethylamino)pyridine (DMAP) as the cocatalyst. Poly(propylene maleate-block-polyglycolide), a diblock polyester with a precise composition, was obtained by switch catalysis, in which the same catalyst was able to combine the ROCOP of propylene oxide and maleic anhydride with the ring-opening polymerization (ROP) of glycolide (GA) through a one-pot procedure, starting from an initial mixture of the three different monomers.
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Affiliation(s)
- Federica Santulli
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Ilaria Grimaldi
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Daniela Pappalardo
- Dipartimento di Scienze e Tecnologie, Università del Sannio, Via de Sanctis snc, 82100 Benevento, Italy
| | - Marina Lamberti
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Mina Mazzeo
- Department of Chemistry and Biology "A. Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
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20
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Kong X, Wu Y, Yu W, Liu Y, Li J, Du G, Lv X, Liu L. Efficient Synthesis of Limonene in Saccharomyces cerevisiae Using Combinatorial Metabolic Engineering Strategies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:7752-7764. [PMID: 37189018 DOI: 10.1021/acs.jafc.3c02076] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Limonene is a volatile monoterpene compound that is widely used in food additives, pharmaceutical products, fragrances, and toiletries. We herein attempted to perform efficient biosynthesis of limonene in Saccharomyces cerevisiae using systematic metabolic engineering strategies. First, we conducted de novo synthesis of limonene in S. cerevisiae and achieved a titer of 46.96 mg/L. Next, by dynamic inhibition of the competitive bypass of key metabolic branches regulated by ERG20 and optimization of the copy number of tLimS, a greater proportion of the metabolic flow was directed toward limonene synthesis, achieving a titer of 640.87 mg/L. Subsequently, we enhanced the acetyl-CoA and NADPH supply, which increased the limonene titer to 1097.43 mg/L. Then, we reconstructed the limonene synthesis pathway in the mitochondria. Dual regulation of cytoplasmic and mitochondrial metabolism further increased the limonene titer to 1586 mg/L. After optimization of the process of fed-batch fermentation, the limonene titer reached 2.63 g/L, the highest ever reported in S. cerevisiae.
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Affiliation(s)
- Xiao Kong
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Yaokang Wu
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Wenwen Yu
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Yanfeng Liu
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Jianghua Li
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Guocheng Du
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Xueqin Lv
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
| | - Long Liu
- Science Center for Future Foods, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
- Food Laboratory of Zhongyuan, Jiangnan University, Wuxi, Jiangsu 214122, People's Republic of China
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21
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Grimaldi I, Santulli F, Lamberti M, Mazzeo M. Chromium Complexes Supported by Salen-Type Ligands for the Synthesis of Polyesters, Polycarbonates, and Their Copolymers through Chemoselective Catalysis. Int J Mol Sci 2023; 24:ijms24087642. [PMID: 37108806 PMCID: PMC10144741 DOI: 10.3390/ijms24087642] [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: 03/16/2023] [Revised: 04/15/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Salen, Salan, and Salalen chromium (III) chloride complexes have been investigated as catalysts for the ring-opening copolymerization reactions of cyclohexene oxide (CHO) with CO2 and of phthalic anhydride (PA) with limonene oxide (LO) or cyclohexene oxide (CHO). In the production of polycarbonates, the more flexible skeleton of salalen and salan ancillary ligands favors high activity. Differently, in the copolymerization of phthalic anhydride with the epoxides, the salen complex showed the best performance. Diblock polycarbonate-polyester copolymers were selectively obtained by one-pot procedures from mixtures of CO2, cyclohexene oxide, and phthalic anhydride with all complexes. In addition, all chromium complexes were revealed to be very active in the chemical depolymerization of polycyclohexene carbonate producing cyclohexene oxide with high selectivity, thus offering the opportunity to close the loop on the life of these materials.
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Affiliation(s)
- Ilaria Grimaldi
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Federica Santulli
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Marina Lamberti
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
| | - Mina Mazzeo
- Department of Chemistry and Biology "Adolfo Zambelli", University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, SA, Italy
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22
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Jiang H, Wang X. Biosynthesis of monoterpenoid and sesquiterpenoid as natural flavors and fragrances. Biotechnol Adv 2023; 65:108151. [PMID: 37037288 DOI: 10.1016/j.biotechadv.2023.108151] [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: 11/03/2022] [Revised: 03/27/2023] [Accepted: 04/06/2023] [Indexed: 04/12/2023]
Abstract
Terpenoids are a large class of plant-derived compounds, that constitute the main components of essential oils and are widely used as natural flavors and fragrances. The biosynthesis approach presents a promising alternative route in terpenoid production compared to plant extraction or chemical synthesis. In the past decade, the production of terpenoids using biotechnology has attracted broad attention from both academia and the industry. With the growing market of flavor and fragrance, the production of terpenoids directed by synthetic biology shows great potential in promoting future market prospects. Here, we reviewed the latest advances in terpenoid biosynthesis. The engineering strategies for biosynthetic terpenoids were systematically summarized from the enzyme, metabolic, and cellular dimensions. Additionally, we analyzed the key challenges from laboratory production to scalable production, such as key enzyme improvement, terpenoid toxicity, and volatility loss. To provide comprehensive technical guidance, we collected milestone examples of biosynthetic mono- and sesquiterpenoids, compared the current application status of chemical synthesis and biosynthesis in terpenoid production, and discussed the cost drivers based on the data of techno-economic assessment. It is expected to provide critical insights into developing translational research of terpenoid biomanufacturing.
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Affiliation(s)
- Hui Jiang
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, Zhejiang 311200, PR China
| | - Xi Wang
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Hangzhou, Zhejiang 311200, PR China; College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, PR China.
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23
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Computational docking investigation of phytocompounds from bergamot essential oil against Serratia marcescens protease and FabI: Alternative pharmacological strategy. Comput Biol Chem 2023; 104:107829. [PMID: 36842391 DOI: 10.1016/j.compbiolchem.2023.107829] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Abstract
The rapid development of multi-drug resistant (MDR) pathogens adds urgency to search for novel and safe drugs having promising action on new and re-emerging infectious pathogens. Serratia marcescens is an MDR pathogen that causes several-healthcare associated infections. Curbing bacterial virulence, rather than inhibiting its growth, is a promising strategy to diminish the pathogenesis of infectious bacteria, reduce the development of antimicrobial resistance, and boost the host immune power to eradicate infections. Bergamot essential oil (BEO) is a remarkable source of promising therapeutics against pathogens. Therefore, the present investigation aimed to analyze the major phytocompounds from BEO against S. marcescens virulent proteins using in silico studies. The analysis of BEO phytocompounds was achieved by Gas chromatography-mass spectrometry (GC-MS) method. The molecular docking was carried out using the SP and XP docking protocol of the Glide program. The drug-likeness and pharmacokinetics properties (ADMET properties) were analyzed with SwissADME and pkCSM server. The results revealed that the major compounds present in BEO are Linalool (8.17%), D-Limonene (21.26%), and Linalyl acetate (26.91%). Molecular docking analysis revealed that these compounds docked strongly within the binding cavities of Serratia protease and FabI model which in turn curb the pathogenesis of this bacteria. Linalool interacted with the Serratia protease and FabI with a binding energy of - 3.130 kcal/mol and - 3.939 kcal/mol, respectively. Based on the pharmacokinetics findings all lead BEO phytocompounds appear to be promising drug candidates. Overall, these results represent a significant step in the development of plant-based compounds as a promising inhibitor of the virulent proteins of the MDR S. marcescens.
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24
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Schorn F, Essert A, Zhong Y, Abdullayev S, Castiglione K, Haumann M, Joly NY. Measurement of Minute Liquid Volumes of Chiral Molecules Using In-Fiber Polarimetry. Anal Chem 2023; 95:3204-3209. [PMID: 36720470 PMCID: PMC9933876 DOI: 10.1021/acs.analchem.2c03347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 11/11/2022] [Indexed: 02/02/2023]
Abstract
We report an optofluidic method that enables to efficiently measure the enantiomeric excess of chiral molecules at low concentrations. The approach is to monitor the optical activity induced by a Kagome-lattice hollow-core photonic crystal fiber filled with a sub-μL volume of chiral compounds. The technique also allows monitoring the enzymatic racemization of R-mandelic acid.
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Affiliation(s)
- Florian Schorn
- Interdisciplinary
Center for Nanostructured Films, Max-Planck-Institute
for the Science of Light, and Friedrich-Alexander-University Erlangen-Nürmberg, Erlangen91058, Germany
| | - Arabella Essert
- Lehrstuhl
für Bioverfahrenstechnik (BVT), Friedrich-Alexander-Universität
Erlangen-Nürnberg (FAU), Erlangen91052, Germany
| | - Yu Zhong
- Lehrstuhl
für Chemische Reaktionstechnik (CRT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen91058, Germany
| | - Sahib Abdullayev
- Lehrstuhl
für Chemische Reaktionstechnik (CRT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen91058, Germany
| | - Kathrin Castiglione
- Lehrstuhl
für Bioverfahrenstechnik (BVT), Friedrich-Alexander-Universität
Erlangen-Nürnberg (FAU), Erlangen91052, Germany
| | - Marco Haumann
- Lehrstuhl
für Chemische Reaktionstechnik (CRT), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen91058, Germany
- Research
Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, P.O. Box 524, Auckland Park2006, South Africa
| | - Nicolas Y. Joly
- Interdisciplinary
Center for Nanostructured Films, Max-Planck-Institute
for the Science of Light, and Friedrich-Alexander-University Erlangen-Nürmberg, Erlangen91058, Germany
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Andrade MA, Barbosa CH, Shah MA, Ahmad N, Vilarinho F, Khwaldia K, Silva AS, Ramos F. Citrus By-Products: Valuable Source of Bioactive Compounds for Food Applications. Antioxidants (Basel) 2022; 12:antiox12010038. [PMID: 36670900 PMCID: PMC9855225 DOI: 10.3390/antiox12010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/14/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
Citrus production produces about 15 million tons of by-products/waste worldwide every year. Due to their high content of bioactive compounds, several extraction techniques can be applied to obtain extracts rich in valuable compounds and further application into food applications. Distillation and solvent extraction continues to be the most used and applied extraction techniques, followed by newer techniques such as microwave-assisted extraction and pulsed electric field extraction. Although the composition of these extracts and essential oils directly depends on the edaphoclimatic conditions to which the fruit/plant was exposed, the main active compounds are D-limonene, carotenoids, and carbohydrates. Pectin, one of the most abundant carbohydrates present in Citrus peels, can be used as a biodegradable polymer to develop new food packaging, and the extracted bioactive compounds can be easily added directly or indirectly to foods to increase their shelf-life. One of the applications is their incorporation in active food packaging for microbiological and/or oxidation inhibition, prolonging foods' shelf-life and, consequently, contributing to reducing food spoilage. This review highlights some of the most used and effective extraction techniques and the application of the obtained essential oils and extracts directly or indirectly (through active packaging) to foods.
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Affiliation(s)
- Mariana A. Andrade
- Department of Food and Nutrition, National Institute of Health Doutor Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal
- Faculty of Pharmacy, University of Coimbra, Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- REQUIMTE/LAQV, Rua D. Manuel II, Apartado 55142, 4051-401 Oporto, Portugal
| | - Cássia H. Barbosa
- Department of Food and Nutrition, National Institute of Health Doutor Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal
- MEtRICs, Departamento de Ciências e Tecnologia da Biomassa, Departamento de Química, NOVA School of Science and Technology, Universidade NOVA de Lisboa, FCT NOVA, Campus de Caparica, 2829-516 Caparica, Portugal
| | | | - Nazir Ahmad
- Department of Pharmacology and Clinical Pharmacy, Faculty of Pharmacy, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, Indonesia
| | - Fernanda Vilarinho
- Department of Food and Nutrition, National Institute of Health Doutor Ricardo Jorge, Av. Padre Cruz, 1649-016 Lisbon, Portugal
| | - Khaoula Khwaldia
- Laboratoire des Substances Naturelles, Institut National de Recherche et d’Analyse Physico-Chimique, INRAP, Pôle Technologique de Sidi Thabet, Tunis 2020, Tunisia
| | - Ana Sanches Silva
- Faculty of Pharmacy, University of Coimbra, Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Rua dos Lagidos, Lugar da Madalena, 4485-655 Vairão, Portugal
- Center for Study in Animal Science (CECA), ICETA, University of Oporto, 4051-401 Oporto, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (AL4AnimalS), 1300-477 Lisbon, Portugal
| | - Fernando Ramos
- Faculty of Pharmacy, University of Coimbra, Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- REQUIMTE/LAQV, Rua D. Manuel II, Apartado 55142, 4051-401 Oporto, Portugal
- Correspondence:
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Lin HH, Mendez‐Perez D, Park J, Wang X, Cheng Y, Huo J, Mukhopadhyay A, Lee TS, Shanks BH. Precursor prioritization for p-cymene production through synergistic integration of biology and chemistry. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2022; 15:126. [PMCID: PMC9670573 DOI: 10.1186/s13068-022-02226-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 10/02/2022] [Indexed: 11/18/2022]
Abstract
The strategy of synergistic application of biological and chemical catalysis is an important approach for efficiently converting renewable biomass into chemicals and fuels. In particular, the method of determining the appropriate intermediate between the two catalytic methods is critical. In this work, we demonstrate p-cymene production through the integration of biosynthesis and heterogenous catalysis and show how a preferred biologically derived precursor could be determined. On the biological side, we performed the limonene and 1,8-cineole production through the mevalonate pathway. Titers of 0.605 g/L and a 1.052 g/L were achieved, respectively. This difference is in agreement with the toxicity of these compounds toward the producing microorganisms, which has implications for subsequent development of the microbial platform. On the heterogeneous catalysis side, we performed the reaction with both biological precursors to allow for direct comparison. Using hydrogenation/dehydrogenation metals on supports with acid sites, both limonene and 1,8-cineole were converted to p-cymene with similar yields under equivalent reaction conditions. Thus, we could determine that the most promising strategy would be to target 1,8-cineole, the higher titer and lower toxicity bio-derived precursor with subsequent catalytic conversion to p-cymene. We further optimized the biological production of 1,8-cineole via fed-batch fermentation and reached the titer of 4.37 g/L which is the highest known 1,8-cineole titer from microbial production. This work provides a valuable paradigm for early stage considerations to determine the best route for the high-efficiency production of a target biobased molecule using an integration of biology and chemistry.
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Affiliation(s)
- Hsi-Hsin Lin
- grid.34421.300000 0004 1936 7312Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011 USA ,grid.34421.300000 0004 1936 7312Center for Biorenewable Chemicals (CBiRC), Iowa State University, Ames, IA 50011 USA ,grid.451372.60000 0004 0407 8980Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA
| | - Daniel Mendez‐Perez
- grid.451372.60000 0004 0407 8980Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.184769.50000 0001 2231 4551Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Jimin Park
- grid.451372.60000 0004 0407 8980Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.47840.3f0000 0001 2181 7878Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720 USA
| | - Xi Wang
- grid.451372.60000 0004 0407 8980Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.184769.50000 0001 2231 4551Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Yan Cheng
- grid.34421.300000 0004 1936 7312Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011 USA ,grid.34421.300000 0004 1936 7312Center for Biorenewable Chemicals (CBiRC), Iowa State University, Ames, IA 50011 USA
| | - Jiajie Huo
- grid.34421.300000 0004 1936 7312Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011 USA ,grid.34421.300000 0004 1936 7312Center for Biorenewable Chemicals (CBiRC), Iowa State University, Ames, IA 50011 USA
| | - Aindrila Mukhopadhyay
- grid.451372.60000 0004 0407 8980Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.184769.50000 0001 2231 4551Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Taek Soon Lee
- grid.451372.60000 0004 0407 8980Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA ,grid.184769.50000 0001 2231 4551Biological Systems & Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Brent H. Shanks
- grid.34421.300000 0004 1936 7312Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011 USA ,grid.34421.300000 0004 1936 7312Center for Biorenewable Chemicals (CBiRC), Iowa State University, Ames, IA 50011 USA ,grid.451372.60000 0004 0407 8980Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA
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Calvo-Flores FG, Martin-Martinez FJ. Biorefineries: Achievements and challenges for a bio-based economy. Front Chem 2022; 10:973417. [PMID: 36438874 PMCID: PMC9686847 DOI: 10.3389/fchem.2022.973417] [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: 06/20/2022] [Accepted: 10/05/2022] [Indexed: 12/07/2023] Open
Abstract
Climate change, socioeconomical pressures, and new policy and legislation are driving a decarbonization process across industries, with a critical shift from a fossil-based economy toward a biomass-based one. This new paradigm implies not only a gradual phasing out of fossil fuels as a source of energy but also a move away from crude oil as a source of platform chemicals, polymers, drugs, solvents and many other critical materials, and consumer goods that are ubiquitous in our everyday life. If we are to achieve the United Nations' Sustainable Development Goals, crude oil must be substituted by renewable sources, and in this evolution, biorefineries arise as the critical alternative to traditional refineries for producing fuels, chemical building blocks, and materials out of non-edible biomass and biomass waste. State-of-the-art biorefineries already produce cost-competitive chemicals and materials, but other products remain challenging from the economic point of view, or their scaled-up production processes are still not sufficiently developed. In particular, lignin's depolymerization is a required milestone for the success of integrated biorefineries, and better catalysts and processes must be improved to prepare bio-based aromatic simple molecules. This review summarizes current challenges in biorefinery systems, while it suggests possible directions and goals for sustainable development in the years to come.
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Affiliation(s)
- Francisco G. Calvo-Flores
- Grupo de Modelizacion y Diseño Molecular, Departamento de Quimica Organica, Universidad de Granada, Granada, Spain
| | - Francisco J. Martin-Martinez
- Department of Chemistry, Swansea University, Swansea, United Kingdom
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States
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Zhang J, Shin J, Tague N, Lin H, Zhang M, Ge X, Wong W, Dunlop MJ, Cheng J. Visualization of a Limonene Synthesis Metabolon Inside Living Bacteria by Hyperspectral SRS Microscopy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203887. [PMID: 36169112 PMCID: PMC9661820 DOI: 10.1002/advs.202203887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/21/2022] [Indexed: 06/16/2023]
Abstract
Monitoring biosynthesis activity at single-cell level is key to metabolic engineering but is still difficult to achieve in a label-free manner. Using hyperspectral stimulated Raman scattering imaging in the 670-900 cm-1 region, localized limonene synthesis are visualized inside engineered Escherichia coli. The colocalization of limonene and GFP-fused limonene synthase is confirmed by co-registered stimulated Raman scattering and two-photon fluorescence images. The finding suggests a limonene synthesis metabolon with a polar distribution inside the cells. This finding expands the knowledge of de novo limonene biosynthesis in engineered bacteria and highlights the potential of SRS chemical imaging in metabolic engineering research.
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Affiliation(s)
- Jing Zhang
- Department of Biomedical EngineeringBoston UniversityBostonMA02215USA
- Photonics CenterBoston UniversityBostonMA02215USA
| | - Jonghyeon Shin
- Department of Biomedical EngineeringBoston UniversityBostonMA02215USA
| | - Nathan Tague
- Department of Biomedical EngineeringBoston UniversityBostonMA02215USA
- Biological Design CenterBoston UniversityBostonMA02215USA
| | - Haonan Lin
- Department of Biomedical EngineeringBoston UniversityBostonMA02215USA
- Photonics CenterBoston UniversityBostonMA02215USA
| | - Meng Zhang
- Photonics CenterBoston UniversityBostonMA02215USA
- Department of Electrical and Computer EngineeringBoston UniversityBostonMA02215USA
| | - Xiaowei Ge
- Photonics CenterBoston UniversityBostonMA02215USA
- Department of Electrical and Computer EngineeringBoston UniversityBostonMA02215USA
| | - Wilson Wong
- Department of Biomedical EngineeringBoston UniversityBostonMA02215USA
- Biological Design CenterBoston UniversityBostonMA02215USA
| | - Mary J. Dunlop
- Department of Biomedical EngineeringBoston UniversityBostonMA02215USA
- Biological Design CenterBoston UniversityBostonMA02215USA
| | - Ji‐Xin Cheng
- Department of Biomedical EngineeringBoston UniversityBostonMA02215USA
- Photonics CenterBoston UniversityBostonMA02215USA
- Department of Electrical and Computer EngineeringBoston UniversityBostonMA02215USA
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29
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Yazdanshenas H, Tafrihi M. The biological and therapeutic potentials of Cyclotrichium genus: a systematic review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2022; 32:2589-2599. [PMID: 34528839 DOI: 10.1080/09603123.2021.1977784] [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: 06/04/2021] [Accepted: 09/03/2021] [Indexed: 06/13/2023]
Abstract
The genus Cyclotrichium includes nine species that are mainly distributed in Turkey, Lebanon, Iraq, and Iran, and are used in the kitchen, and also in complementary medicine to treat various diseases. During recent years, considerable progress has been made in analyzing their phytochemical composition in parallel with their antimicrobial properties and their therapeutic potentials. This study reviews the present knowledge about investigations on antimicrobial, insecticidal, and anticancer properties of the essential oils and any other purified chemical compounds of the Cyclotrichium species. Various phytochemicals have been isolated from the extracts of the plants of this genus having significant biological and therapeutic potentials. In conclusion, these gathered data strongly support the viewpoint that the species belonging to the genus Cyclotrichium have various biological and pharmaceutical activities to treat various diseases including cancer in addition to the remarkable antimicrobial and insecticidal potential with no or minimal health and environmental hazards.
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Affiliation(s)
- Homayoon Yazdanshenas
- Department of Cellular and Molecular Biology, University of Mazandaran, Babolsar, Mazandaran, Iran
| | - Majid Tafrihi
- Department of Cellular and Molecular Biology, University of Mazandaran, Babolsar, Mazandaran, Iran
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30
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Wang S, Zhan C, Chen R, Li W, Song H, Zhao G, Wen M, Liang D, Qiao J. Achievements and perspectives of synthetic biology in botanical insecticides. J Cell Physiol 2022. [PMID: 36183373 DOI: 10.1002/jcp.30888] [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: 08/02/2022] [Revised: 09/07/2022] [Accepted: 09/19/2022] [Indexed: 11/10/2022]
Abstract
Botanical insecticides are the origin of all insecticidal compounds. They have been widely used to control pests in crops for a long time. Currently, the commercial production of botanical insecticides extracted from plants is limited because of insufficient raw material supply. Synthetic biology is a promising and effective approach for addressing the current problems of the production of botanical insecticides. It is an emerging biological research hotspot in the field of botanical insecticides. However, the biosynthetic pathways of many botanical insecticides are not completely elucidated. On the other hand, the cytotoxicity of botanical pesticides and low efficiency of these biosynthetic enzymes in new hosts make it still challenging for their heterologous production. In the present review, we summarized the recent developments in the heterologous production of botanical insecticides, analyzed the current challenges, and discussed the feasible production strategies, focusing on elucidating biosynthetic pathways, enzyme engineering, host engineering, and cytotoxicity engineering. Looking to the future, synthetic biology promises to further advance heterologous production of more botanical pesticides.
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Affiliation(s)
- Shengli Wang
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, China
| | - Chuanling Zhan
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, China
| | - Ruiqi Chen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, China
| | - Weiguo Li
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, China
| | - Hongjian Song
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, China
| | - Guangrong Zhao
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
| | - Mingzhang Wen
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
| | - Dongmei Liang
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, China
| | - Jianjun Qiao
- Department of Pharmaceutical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
- Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin, China
- Zhejiang Shaoxing Research Institute of Tianjin University, Shaoxing, China
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31
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Mesoporous Silica Particles Functionalized with Newly Extracted Fish Oil (Omeg@Silica) Reducing IL-8 Counteract Cell Migration in NSCLC Cell Lines. Pharmaceutics 2022; 14:pharmaceutics14102079. [PMID: 36297513 PMCID: PMC9609990 DOI: 10.3390/pharmaceutics14102079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/17/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Lung cancer is one of the leading forms of cancer in developed countries. Interleukin-8 (IL-8), a pro-inflammatory cytokine, exerts relevant effects in cancer growth and progression, including angiogenesis and metastasis in lung cancer. Mesoporous silica particles, functionalized with newly extracted fish oil (Omeg@Silica), are more effective than the fish oil alone in anti-proliferative and pro-apoptotic effects in non-small cell lung cancer (NSCLC) cell lines. The mechanisms that explain this efficacy are not yet understood. The aim of the present study is therefore to decipher the anti-cancer effects of a formulation of Omeg@Silica in aqueous ethanol (FOS) in adenocarcinoma (A549) and muco-epidermoid (NCI-H292) lung cancer cells, evaluating cell migration, as well as IL-8, NF-κB, and miRNA-21 expression. Results show that in both cell lines, FOS was more efficient than oil alone, in decreasing cell migration and IL-8 gene expression. FOS reduced IL-8 protein release in both cell lines, but this effect was only stronger than the oil alone in A549. In A549, FOS was able to reduce miRNA-21 and transcription factor NF-κB nuclear expression. Taken together, these data support the potential use of the Omeg@Silica as an add-on therapy for NSCLC. Dedicated studies which prove clinical efficacy are needed.
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Jung W, Kwon J, Cho W, Yeom J. Chiral Biomaterials for Nanomedicines: From Molecules to Supraparticles. Pharmaceutics 2022; 14:pharmaceutics14091951. [PMID: 36145699 PMCID: PMC9505685 DOI: 10.3390/pharmaceutics14091951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/29/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Chirality, the property whereby an object or a system cannot be superimposed on its mirror image, prevails amongst nature over various scales. Especially in biology, numerous chiral building blocks and chiral-specific interactions are involved in many essential biological activities. Despite the prevalence of chirality in nature, it has been no longer than 70 years since the mechanisms of chiral-specific interactions drew scientific attention and began to be studied. Owing to the advent of chiral-sensitive equipment such as circular dichroism spectrometers or chiral liquid columns for chromatography, it has recently been possible to achieve a deeper understanding of the chiral-specific interactions and consequential impacts on the functionality and efficiency of nanomedicine. From this point of view, it is worthwhile to examine previously reported chiral biomaterials with their compositions and possible applications to achieve new paradigms of biomaterials. This review discusses chiral materials on various scales and their biological applications.
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Affiliation(s)
- Wookjin Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Junyoung Kwon
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Wonjoon Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
| | - Jihyeon Yeom
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Institute for Health Science and Technology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Institute for NanoCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Korea
- Correspondence:
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Mahamat Ahmat Y, Kaliaguine S. Stepwise and Microemulsions Epoxidation of Limonene by Dimethyldioxirane: A Comparative Study. ACS OMEGA 2022; 7:31789-31800. [PMID: 36119986 PMCID: PMC9476174 DOI: 10.1021/acsomega.2c02423] [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: 04/18/2022] [Accepted: 08/09/2022] [Indexed: 06/15/2023]
Abstract
Limonene dioxide is recognized as a green monomer for the synthesis of a wide variety of polymers such as polycarbonates, epoxy resins, and nonisocyanate polyurethanes (NIPU). The developed green technologies for its synthesis over heterogeneous catalysts present a challenge in that the selectivity of limonene dioxide is rather low. Homogeneous epoxidation in the presence of dimethyldioxirane for limonene dioxide synthesis is a promising technology. This study reports the epoxidation of limonene by dimethyldioxirane (DMDO) using two approaches. The isolated synthesis of DMDO solution in acetone was followed by epoxidation of limonene in another reactor in 100% organic phase (stepwise epoxidation). Following this procedure, limonene dioxide could be produced with almost 100% conversion and yield. A second approach allowed using in situ generated in aqueous-phase DMDO to epoxidize the limonene forming a microemulsion with a solubilized surfactant in the absence of any organic solvent. The surfactants tested were hydrosulfate (CTAHS), bromide (CTAB), and chloride (CTAC) cetyltrimethylammonium. All these surfactants showed good stability of microemulsions at aqueous surfactant concentrations above their critical micellar concentrations (CMC). Stability is obtained at the lowest concentration when using CTAHS because of its very low CMC compared to CTAB and CTAC. The major advantages of epoxidation in microemulsions compared to DMDO stepwise epoxidation are the absence of an organic solvent (favoring a low reaction volume) and the very high oxygen yield of 60 to 70% versus 5% in a stepwise approach. The epoxides formed are easily separated from the aqueous medium and the surfactant by liquid-liquid extraction. Therefore, the developed in situ epoxidation process is a green technology conducted under mild conditions and convenient for large-scale applications.
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Sanfilippo C, Patti A. Epoxide hydrolase activity in the aqueous extracts of vegetable flours and application to the stereoselective hydrolysis of limonene oxide. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tang Y, Park H, Scher HB, Jeoh T. The role of a moisture-barrier latex in controlling retention, stability and release of D-limonene from complex coacervated matrix microparticles formed during spray drying. Front Nutr 2022; 9:979656. [PMID: 36091256 PMCID: PMC9452785 DOI: 10.3389/fnut.2022.979656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/08/2022] [Indexed: 11/13/2022] Open
Abstract
Limonene from citrus peel oil is valued as fragrance and flavor additives in food and beverages; however, D-limonene is highly volatile and oxygen-sensitive, thus present storage and stability challenges in food products. A novel, industrially-scalable microencapsulation by in situ complex coacervation during spray drying process (CoCo process) was applied to encapsulate limonene in alginate-gelatin matrix microparticles. Specifically, we investigated the potential to improve upon prior work demonstrating volatile retention and enteric release of limonene from the complex coacervated (CoCo) microcapsules by incorporating ethylcellulose to improve moisture and oxygen barrier properties of the encapsulation matrix. We hypothesized that ethylcellulose, commonly used as a water-barrier coating with pharmaceuticals, would enhance the ability of CoCo microcapsules to retain and shelf-stabilize limonene. The CoCo process alone could achieve limonene retention of 77.7% ± 1.3% during spray drying, with only ∼10% limonene loss and low oxidation rate after 3-weeks of storage in ambient conditions. Contrary to expectations, incorporating ethylcellulose with the CoCo formulation increased volatile losses of limonene during spray drying and during prolonged storage. Moreover, CoCo powders with ethylcellulose accelerated limonene release in water and simulated gastric fluid, and decelerated release in simulated intestinal fluid—a result that was contrary to targeting enteric release. Instead of simply forming a protective water barrier film in the microparticles during spray drying as envisioned, ethylcellulose appeared to bring limonene to the particle surfaces, thereby enhancing volatile losses, facilitating oxidation and accelerating release in acidic aqueous media. Using ethylcellulose as a model, this study demonstrated the potential to formulate CoCo microparticles using latex excipients to control burst release of the payload followed by long-lasting sustained release in air and in aqueous environments.
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Synthesis of Carbosilane and Carbosilane-Siloxane Dendrons Based on Limonene. Polymers (Basel) 2022; 14:polym14163279. [PMID: 36015536 PMCID: PMC9416742 DOI: 10.3390/polym14163279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 08/09/2022] [Accepted: 08/10/2022] [Indexed: 11/16/2022] Open
Abstract
In this work, carbosilane dendrons of the first, second, and third generations were obtained on the basis of a natural terpenoid, limonene. Previously, we have shown the possibility of selective hydrosilylation and hydrothiolation of limonene. It is proved that during hydrosilylation, only the isoprenyl double bond reacts, while the cyclohexene double bond does not undergo into the hydrosilylation reaction. However, the cyclohexene double bond reacts by hydrothiolation. This selectivity makes it possible to use limonene as a dendron growth center, while maintaining a useful function—a double bond at the focal point. Thus, the sequence of hydrosilylation and Grignard reactions based on limonene formed carbosilane dendrons. After that, the end groups were blocked by heptamethyltrisiloxane or butyllithium. The obtained substances were characterized using NMR spectroscopy, elemental analysis and GPC. Thus, the proposed methodology for the synthesis of carbosilane dendrons based on the natural terpenoid limonene opens up wide possibilities for obtaining various macromolecules: dendrimers, Janus dendrimers, dendronized polymers, and macroinitiators.
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Akhavan-Mahdavi S, Sadeghi R, Faridi Esfanjani A, Hedayati S, Shaddel R, Dima C, Malekjani N, Boostani S, Jafari SM. Nanodelivery systems for d-limonene; techniques and applications. Food Chem 2022; 384:132479. [DOI: 10.1016/j.foodchem.2022.132479] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 01/19/2022] [Accepted: 02/13/2022] [Indexed: 12/26/2022]
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38
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Louisy E, Khodyrieva V, Olivero S, Michelet V, Mija A. Use of Limonene Epoxides and Derivatives as Promising Monomers for Biobased Polymers. Chempluschem 2022; 87:e202200190. [DOI: 10.1002/cplu.202200190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/22/2022] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | - Veronique Michelet
- University of Cote d'Azur Faculty of Sciences: Universite Cote d'Azur Faculte des Sciences CHEMISTRY Parc Valrose 06100 NICE FRANCE
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Impact of the Interactions between Fragrances and Cosmetic Bases on the Fragrance Olfactory Performance: A Tentative to Correlate SPME-GC/MS Analysis with That of an Experienced Perfumer. COSMETICS 2022. [DOI: 10.3390/cosmetics9040070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
“Seta e Ciliegia” and “Narguilé” fragrances were mixed to form a binary blend with chemically stable, non-volatile, odourless, simple bases of different lipophilicity widely used in skin care and hair care formulations, such as caprylic-capric triglyceride, glycerine, paraffin, dimethicone, isopropyl myristate and butylene glycol, with the objective to verify how the olfactory performance of fragrances can be influenced by skin or hair care ingredients. The semiquantitative approach applied in this study aims in providing a practical solution to appropriately combine a fragrance with cosmetic ingredients. Pure fragrance and binary blends were analysed by solid phase microextraction gas chromatography tandem mass spectrometry (SPME-GC/MS), based on the assumption that the solid phase microextraction is able to extract volatile compounds, mimicking the ability of the nose to capture similar volatile compounds. Fifty-seven and forty-four compounds were identified by SPME-GC/MS in pure fragrances “Seta e Ciliegia” and “Narguilé”, respectively. Once mixed with the bases, the analysis of the blends revealed that a qualitative modification in the chromatograms could occur according to the characteristics of the bases. In general, for both fragrances, blends with glycerin and butylene glycol, which are the most hydrophilic bases among the ones tested, were able to release most of the peaks, that were thus still present in the chromatograms. Differently, in the blends with caprylic-capric triglyceride, most of the peaks are lost. Blends with paraffine, dimethicone and isopropyl myristate showed an intermediate behaviour. These results were thus compared with the sensory evaluation made by an experienced perfumer, capable of assessing the different olfactory performances of pure fragrances and their different binary blends. The evaluation made by the perfumer fitted well with the analytical results, and in the blends where most of the peaks were revealed in the chromatogram, the perfumer found a similar olfactory profile for example with glycerin, butylene glycol, while a modification of the olfactory profile was highlighted when several peaks were not still present in the chromatogram, as it was the case with caprylic-capric triglyceride. Interestingly, when the most typical peaks of a fragrance were still observed in the blend, even if some of them were lost, the olfactory performance was not lost, as was the case of paraffin and isopropyl myristate. In the case of dimethicone, its high volatility was considered responsible for a certain decrease in the fragrance “volume”. The results achieved with this investigation can be used to hypothesize that the different compounds of a fragrance, characterized for the first time by different volatility and solubility, could be differently retained by the bases: the more lipophilic are strongly retained by the lipophilic bases with a consequently reduced volatility that limits the possibility of being appreciated by the nose and that corresponds to disappearance or a percentage reduction from the chromatogram. Therefore, in a more accurate and helpful view for a formulator, we could come to the conclusion that based on the results achieved by our investigation, the inclusion of a less lipophilic base can be more appropriate to exalt more lipophilic fragrances.
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40
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Li J, Maravelias CT, Van Lehn RC. Adaptive Conformer Sampling for Property Prediction Using the Conductor-like Screening Model for Real Solvents. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c01163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianping Li
- Department of Chemical and Biological Engineering and DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Christos T. Maravelias
- Department of Chemical and Biological Engineering and Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08540, United States
| | - Reid C. Van Lehn
- Department of Chemical and Biological Engineering and DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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41
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Dolzhenko AV. Synthesis of Heterocycles in Nonconventional Bio‐based Reaction Media. HETEROCYCLES 2022. [DOI: 10.1002/9783527832002.ch9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Birk F, Hausmann H, Fraatz MA, Kirste A, Aust NC, Pelzer R, Zorn H. Generation of Flavor-Active Compounds by Electrochemical Oxidation of ( R)-Limonene. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7220-7229. [PMID: 35642795 DOI: 10.1021/acs.jafc.2c01301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Terpenes may be converted by electrochemical oxidation to various oxidized products with appealing aroma properties. In this study, (R)-limonene was anodically oxidized in the presence of ethanol, and the resulting mixture exhibited a pleasing fruity, herbal, citrus-like, and resinous odor. The aroma-active compounds were purified by means of preparative high-performance liquid chromatography, and their structures were elucidated by means of gas chromatography (GC)-mass spectrometry and nuclear magnetic resonance spectroscopy. In addition, the odor of the isolated compounds was determined by means of GC-olfactometry. Seventeen compounds were isolated, and for only four of them, analytical data had been reported previously in the literature. Furthermore, only for two of the compounds, an odor description had been available in the literature.
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Affiliation(s)
- Florian Birk
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Heike Hausmann
- Institute of Organic Chemistry, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Marco A Fraatz
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology, Ohlebergsweg 12, 35392 Giessen, Germany
| | - Axel Kirste
- Process Research & Chemical Engineering, BASF SE, Carl-Bosch-Str. 38, 67056 Ludwigshafen, Germany
| | - Nicola C Aust
- Process Research & Chemical Engineering, BASF SE, Carl-Bosch-Str. 38, 67056 Ludwigshafen, Germany
| | - Ralf Pelzer
- New Business Development Aroma Ingredients, BASF SE, Chemiestrasse 22, 68623 Lampertheim, Germany
| | - Holger Zorn
- Institute of Food Chemistry and Food Biotechnology, Justus Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
- Fraunhofer Institute for Molecular Biology and Applied Ecology, Ohlebergsweg 12, 35392 Giessen, Germany
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43
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Eze VC, Rehman A, Patel M, Ahmad S, Harvey AP. Synthesis of cyclic α-pinane carbonate - a potential monomer for bio-based polymers. RSC Adv 2022; 12:17454-17465. [PMID: 35765421 PMCID: PMC9192141 DOI: 10.1039/d1ra07943c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 06/02/2022] [Indexed: 11/21/2022] Open
Abstract
This work reports the first known synthesis of α-pinane carbonate from an α-pinene derivative. Pinane carbonate is potentially useful as a monomer for poly(pinane carbonate), which would be a sustainable bio-based polymer. α-Pinene is a major waste product from the pulp and paper industries and the most naturally abundant monoterpene in turpentine oil. α-Pinene is routinely converted to pinene oxide and pinanediol, but no study has yet demonstrated the conversion of pinanediol into α-pinane carbonate. Here, α-pinane carbonate was synthesised via carboxylation of α-pinanediol with dimethyl carbonate under base catalysis using triazabicyclodecene guanidine (TBD). 81.1 ± 2.8% α-pinane carbonate yield was achieved at 98.7% purity. The produced α-pinane carbonate was a white crystalline solid with a melting point of 86 °C. It was characterised using FTIR, NMR, GCMS and a quadrupole time-of-flight (QTOF) mass spectrometer. The FTIR exhibited a C
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O peak at 1794 cm−1 confirming the presence of a cyclic carbonate. GCMS showed that the α-pinane carbonate fragments with loss of CO2, forming pinene epoxide. Base hydrolysis of the α-pinane carbonate using NaOH/ethanol/water regenerated the pinanediol with formations of Na2CO3. Synthesis of α-pinane carbonate from an α-pinene derivative.![]()
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Affiliation(s)
- Valentine C Eze
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Abdul Rehman
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK.,Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore Faisalabad Campus Pakistan
| | - Manthan Patel
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK
| | - Sajjad Ahmad
- Department of Chemical and Polymer Engineering, University of Engineering and Technology Lahore Faisalabad Campus Pakistan
| | - Adam P Harvey
- School of Engineering, Newcastle University Newcastle upon Tyne NE1 7RU UK
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Shin J, South EJ, Dunlop MJ. Transcriptional Tuning of Mevalonate Pathway Enzymes to Identify the Impact on Limonene Production in Escherichia coli. ACS OMEGA 2022; 7:18331-18338. [PMID: 35694509 PMCID: PMC9178717 DOI: 10.1021/acsomega.2c00483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Heterologous production of limonene in microorganisms through the mevalonate (MVA) pathway has traditionally imposed metabolic burden and reduced cell fitness, where imbalanced stoichiometries among sequential enzymes result in the accumulation of toxic intermediates. Although prior studies have shown that changes to mRNA stability, RBS strength, and protein homology can be effective strategies for balancing enzyme levels in the MVA pathway, testing different variations of these parameters often requires distinct genetic constructs, which can exponentially increase assembly costs as pathways increase in size. Here, we developed a multi-input transcriptional circuit to regulate the MVA pathway, where four chemical inducers, l-arabinose (Ara), choline chloride (Cho), cuminic acid (Cuma), and isopropyl β-d-1-thiogalactopyranoside (IPTG), each regulate one of four orthogonal promoters. We tested modular transcriptional regulation of the MVA pathway by placing this circuit in an engineered Escherichia coli "marionette" strain, which enabled systematic and independent tuning of the first three enzymes (AtoB, HMGS, and HMGR) in the MVA pathway. By systematically testing combinations of chemical inducers as inputs, we investigated relationships between the expressions of different MVA pathway submodules, finding that limonene yields are sensitive to the coordinated transcriptional regulation of HMGS and HMGR.
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Affiliation(s)
- Jonghyeon Shin
- Biomedical
Engineering Department, Boston University, Boston, Massachusetts 02215, United States
| | - Eric J. South
- Molecular
Biology, Cell Biology & Biochemistry Program, Boston University, Boston, Massachusetts 02215, United States
| | - Mary J. Dunlop
- Biomedical
Engineering Department, Boston University, Boston, Massachusetts 02215, United States
- Molecular
Biology, Cell Biology & Biochemistry Program, Boston University, Boston, Massachusetts 02215, United States
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45
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Brandolese A, Kleij AW. Catalyst Engineering Empowers the Creation of Biomass-Derived Polyesters and Polycarbonates. Acc Chem Res 2022; 55:1634-1645. [PMID: 35648973 DOI: 10.1021/acs.accounts.2c00204] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
ConspectusThe introduction of circular principles in chemical manufacturing will drastically change the way everyday plastics are produced, thereby affecting several aspects of the respective value chains in terms of raw feedstock, recyclability, and cost. The ultimate aim is to ensure a paradigm shift toward plastic-based (consumer) materials that overall can offer a more attractive and sustainable carbon footprint, which is an important requisite from a societal, political, and eventually economical point of view. To realize this important milestone, it is vitally important to control the polymerization processes associated with the creation of novel sustainable materials. In this respect, we realized that expanding the portfolio of biomass-derived monomers may indeed create an impetus for atom circularity; however, the often sterically congested nature of biomass-derived monomers minimizes the ability of previously developed catalysts to activate and transform these precursors. Our motivation was thus spurred by an apparent lack of catalysts suitable for addressing the conversion of such biomonomers, as we realized the potential that new catalytic processes could have to advance and contribute to the development of sustainable materials produced from polycarbonates and polyesters. These two classes of polymers represent crucial ingredients of important and large-scale consumer products and are therefore ideal fits for implementing new catalytic protocols that enable a gradual transition to plastic materials with an improved carbon footprint.When we started our research expedition, the field was dominated by metal catalysts that incorporated preferred, and in some cases even privileged, ligand backbones (such as salens) able to mediate both ring-opening and ring-opening copolymerization manifolds. One major drawback of these aforementioned catalysts is their rather rigid nature, a feature that reduces their ability to act as adaptive systems, especially in cases where bulky monomers are involved. While our initial focus was on the utilization of sustainable metal salen complexes (M = Zn, Fe) for the activation of small cyclic ethers, which are privileged monomers for polyester and polycarbonate production, we were rapidly confronted with severe limitations related to their inability to activate a wider range of complex epoxides and oxetanes, which was imparted by the planar coordination geometry of the salen ligand in most of its applied metal complexes. In our quest to find a catalytically more effective metal complex with the ability to electronically and sterically tune its substrate-binding and substrate-activation potential, we identified aminotriphenolates as structurally versatile, easily accessible, and scalable ligands for various earth-abundant metal cations. Moreover, the ligand backbone allows for switchable coordination environments around the metal centers, thus offering the necessary adaptation in substrate activation events.This Account describes how Al(III)- and Fe(III)-centered aminotriphenolates have conquered a prominent position as catalyst components in the synthesis of new biobased polyester and polycarbonate architectures, thereby changing the landscape of previously difficult to convert biomonomers, and expanding the chemical space of biobased functional polymers. With the ever-increasing influence of legislation and the restrictions placed on the use of fossil-fuel-based feedstock, the polymer industry needs viable alternatives to design materials that are greener, cost-effective, and allow for the exploration and optimization of their recycling and properties.
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Affiliation(s)
- Arianna Brandolese
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Avinguda dels Països Catalans 16, Tarragona 43007, Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Avinguda dels Països Catalans 16, Tarragona 43007, Spain
- Catalan Institute of Research and Advanced Studies (ICREA), Passeig de Lluis Companys 23, Barcelona 08010, Spain
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46
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Wei X, Deng S, Chen D, Wang L, Yang W. Limonene‐derived hollow polymer particles: Preparation and application for the removal of dyes and heavy metal ions. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xin Wei
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
- School of Materials Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Siyu Deng
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
- School of Materials Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Dong Chen
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
- School of Materials Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Li Wang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
- School of Materials Science and Engineering Beijing University of Chemical Technology Beijing China
| | - Wantai Yang
- State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Beijing China
- School of Materials Science and Engineering Beijing University of Chemical Technology Beijing China
- Beijing Advanced Innovation Centre for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing China
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47
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Nabi M, Tabassum N. Role of Environmental Toxicants on Neurodegenerative Disorders. FRONTIERS IN TOXICOLOGY 2022; 4:837579. [PMID: 35647576 PMCID: PMC9131020 DOI: 10.3389/ftox.2022.837579] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 04/22/2022] [Indexed: 12/22/2022] Open
Abstract
Neurodegeneration leads to the loss of structural and functioning components of neurons over time. Various studies have related neurodegeneration to a number of degenerative disorders. Neurological repercussions of neurodegeneration can have severe impacts on the physical and mental health of patients. In the recent past, various neurodegenerative ailments such as Alzheimer’s and Parkinson’s illnesses have received global consideration owing to their global occurrence. Environmental attributes have been regarded as the main contributors to neural dysfunction-related disorders. The majority of neurological diseases are mainly related to prenatal and postnatal exposure to industrially produced environmental toxins. Some neurotoxic metals, like lead (Pb), aluminium (Al), Mercury (Hg), manganese (Mn), cadmium (Cd), and arsenic (As), and also pesticides and metal-based nanoparticles, have been implicated in Parkinson’s and Alzheimer’s disease. The contaminants are known for their ability to produce senile or amyloid plaques and neurofibrillary tangles (NFTs), which are the key features of these neurological dysfunctions. Besides, solvent exposure is also a significant contributor to neurological diseases. This study recapitulates the role of environmental neurotoxins on neurodegeneration with special emphasis on major neurodegenerative disorders such as Alzheimer’s and Parkinson’s disease.
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Affiliation(s)
- Masarat Nabi
- Department of Environmental Science, University of Kashmir, Srinagar, India
- *Correspondence: Masarat Nabi, , orcid.org/0000-0003-1677-6498; Nahida Tabassum,
| | - Nahida Tabassum
- Department of Pharmaceutical Sciences, University of Kashmir, Srinagar, India
- *Correspondence: Masarat Nabi, , orcid.org/0000-0003-1677-6498; Nahida Tabassum,
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48
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Muscolo A, Mauriello F, Marra F, Calabrò PS, Russo M, Ciriminna R, Pagliaro M. AnchoisFert: A New Organic Fertilizer from Fish Processing Waste for Sustainable Agriculture. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2100141. [PMID: 35602407 PMCID: PMC9121761 DOI: 10.1002/gch2.202100141] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/02/2022] [Indexed: 05/27/2023]
Abstract
The "AnchoisFert", the solid residue comprised of milled anchovy leftovers after fish oil extraction with biobased limonene, is a powerful organic fertilizer. Employed to promote the growth of Tropea's red onion (Allium cepa), the fertilizer turns out to largely be superior to commonly used organic (manure) and chemical (nitrogen phosphorous potassium) fertilizers. Rich in proteins, organic carbon, flavonoids, magnesium, potassium, phosphate and sulfate, and devoid of antibiotics and antibiotic resistance genes, the new organic fertilizer can replace both conventional organic and inorganic fertilizers. This discovery closes the fishing material cycle for the most fished species across the seas opening the route to a new class of organic fertilizers of exceptional performance derived from abundant biowaste via a low-cost and environmentally-friendly circular economy process.
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Affiliation(s)
- Adele Muscolo
- Dipartimento di AgrariaUniversità Mediterranea di Reggio CalabriaFeo di VitoReggio Calabria89124Italy
| | - Francesco Mauriello
- Dipartimento di Ingegneria CivileEnergiaAmbiente e MaterialiUniversità Mediterranea di Reggio Calabriavia Graziella, Feo di VitoReggio Calabria89122Italy
| | - Federica Marra
- Dipartimento di AgrariaUniversità Mediterranea di Reggio CalabriaFeo di VitoReggio Calabria89124Italy
| | - Paolo Salvatore Calabrò
- Dipartimento di Ingegneria CivileEnergiaAmbiente e MaterialiUniversità Mediterranea di Reggio Calabriavia Graziella, Feo di VitoReggio Calabria89122Italy
| | - Mariateresa Russo
- Dipartimento di AgrariaUniversità Mediterranea di Reggio CalabriaFeo di VitoReggio Calabria89124Italy
| | - Rosaria Ciriminna
- Istituto per lo Studio dei Materiali NanostrutturatiCNRvia U. La Malfa 153Palermo90146Italy
| | - Mario Pagliaro
- Istituto per lo Studio dei Materiali NanostrutturatiCNRvia U. La Malfa 153Palermo90146Italy
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49
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Abstract
Citrus essential oils (EOs) are widely used as flavoring agents in food, pharmaceutical, cosmetical and chemical industries. For this reason, their demand is constantly increasing all over the world. Besides industrial applications, the abundance of EOs in the epicarp is particularly relevant for the quality of citrus fruit. In fact, these compounds represent a natural protection against postharvest deteriorations due to their remarkable antimicrobial, insecticidal and antioxidant activities. Several factors, including genotype, climatic conditions and cultural practices, can influence the assortment and accumulation of EOs in citrus peels. This review is focused on factors influencing variation of the EOs’ composition during ripening and on the implications on postharvest quality of the fruit.
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50
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Brambilla E, Bortolla A, Pirovano V, Caselli A, Tiecco M, Abbiati G. Silver Catalysed A
3
‐Coupling Reactions in Phenylacetic Acid/Alkylamine N‐Oxide Eutectic Mixture Under Dielectric Heating: an Alternative Approach to Propargylamines. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elisa Brambilla
- Dipartimento di Scienze Farmaceutiche Sezione di Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano Milano Italy
| | - Alison Bortolla
- Dipartimento di Scienze Farmaceutiche Sezione di Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano Milano Italy
| | - Valentina Pirovano
- Dipartimento di Scienze Farmaceutiche Sezione di Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano Milano Italy
| | - Alessandro Caselli
- Dipartimento di Chimica and CNR‐SCITEC Università degli Studi di Milano Milano Italy
| | - Matteo Tiecco
- Dipartimento di Chimica, Biologia e Biotecnologie Università degli Studi di Perugia Perugia Italy
| | - Giorgio Abbiati
- Dipartimento di Scienze Farmaceutiche Sezione di Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano Milano Italy
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