1
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Yuan H, Takahashi K, Hayashi S, Suzuki M, Fujikake N, Kasuya KI, Zhou J, Nakagawa S, Yoshie N, Li C, Yamaguchi K, Nozaki K. Synthesis of Novel Polymers with Biodegradability by Main-Chain Editing of Chiral Polyketones. J Am Chem Soc 2024; 146:13658-13665. [PMID: 38710172 DOI: 10.1021/jacs.4c04389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Although the use of biodegradable plastics is suitable for unrecoverable, single-use plastic, their high production cost and much lower variety compared to commodity plastics limit their application. In this study, we developed a new polymer with potential biodegradability, poly(ketone/ester), synthesized from propylene and carbon monoxide. Propylene and carbon monoxide are easily available at low costs from fossil resources, and they can also be derived from biomass. Using an atom insertion reaction to the main chain of the polymer, the main-chain editing of the polymer molecule proceeded with up to 89% selectivity for atom insertion over main-chain cleavage.
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Affiliation(s)
- Haobo Yuan
- Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Kohei Takahashi
- Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Shinya Hayashi
- Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Miwa Suzuki
- Gunma University Center for Food Science and Wellness, Maebashi, Gunma 371-8510, Japan
| | - Nobuhiro Fujikake
- Gunma University Center for Food Science and Wellness, Maebashi, Gunma 371-8510, Japan
| | - Ken-Ichi Kasuya
- Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
- Gunma University Center for Food Science and Wellness, Maebashi, Gunma 371-8510, Japan
| | - Jian Zhou
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan
| | - Shintaro Nakagawa
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan
| | - Naoko Yoshie
- Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505, Japan
| | - Chifeng Li
- Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Kazuya Yamaguchi
- Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Kyoko Nozaki
- Graduate School of Engineering, The University of Tokyo, Tokyo 113-8656, Japan
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2
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Diankristanti PA, Lin YC, Yi YC, Ng IS. Polyhydroxyalkanoates bioproduction from bench to industry: Thirty years of development towards sustainability. BIORESOURCE TECHNOLOGY 2024; 393:130149. [PMID: 38049017 DOI: 10.1016/j.biortech.2023.130149] [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: 11/09/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/06/2023]
Abstract
The pursuit of carbon neutrality goals has sparked considerable interest in expanding bioplastics production from microbial cell factories. One prominent class of bioplastics, polyhydroxyalkanoates (PHA), is generated by specific microorganisms, serving as carbon and energy storage materials. To begin with, a native PHA producer, Cupriavidus necator (formerly Ralstonia eutropha) is extensively studied, covering essential topics such as carbon source selection, cultivation techniques, and accumulation enhancement strategies. Recently, various hosts including archaea, bacteria, cyanobacteria, yeast, and plants have been explored, stretching the limit of microbial PHA production. This review provides a comprehensive overview of current advancements in PHA bioproduction, spanning from the native to diversified cell factories. Recovery and purification techniques are discussed, and the current status of industrial applications is assessed as a critical milestone for startups. Ultimately, it concludes by addressing contemporary challenges and future prospects, offering insights into the path towards reduced carbon emissions and sustainable development goals.
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Affiliation(s)
| | - Yu-Chieh Lin
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Ying-Chen Yi
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, USA
| | - I-Son Ng
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan.
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3
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Malik MR, Patterson N, Sharma N, Tang J, Burkitt C, Ji Y, Martino M, Hertig A, Schweitzer D, Peoples O, Snell KD. Polyhydroxybutyrate synthesis in Camelina: Towards coproduction of renewable feedstocks for bioplastics and fuels. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:2671-2682. [PMID: 37610031 PMCID: PMC10651141 DOI: 10.1111/pbi.14162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 06/28/2023] [Accepted: 07/26/2023] [Indexed: 08/24/2023]
Abstract
Plant-based co-production of polyhydroxyalkanoates (PHAs) and seed oil has the potential to create a viable domestic source of feedstocks for renewable fuels and plastics. PHAs, a class of biodegradable polyesters, can replace conventional plastics in many applications while providing full degradation in all biologically active environments. Here we report the production of the PHA poly[(R)-3-hydroxybutyrate] (PHB) in the seed cytosol of the emerging bioenergy crop Camelina sativa engineered with a bacterial PHB biosynthetic pathway. Two approaches were used: cytosolic localization of all three enzymes of the PHB pathway in the seed, or localization of the first two enzymes of the pathway in the cytosol and anchoring of the third enzyme required for polymerization to the cytosolic face of the endoplasmic reticulum (ER). The ER-targeted approach was found to provide more stable polymer production with PHB levels up to 10.2% of the mature seed weight achieved in seeds with good viability. These results mark a significant step forward towards engineering lines for commercial use. Plant-based PHA production would enable a direct link between low-cost large-scale agricultural production of biodegradable polymers and seed oil with the global plastics and renewable fuels markets.
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Affiliation(s)
| | - Nii Patterson
- Yield10 Bioscience, Inc.WoburnMassachusettsUSA
- Present address:
Aquatic and Crop Resource Development Research Center, National Research Council CanadaSaskatoonSaskatchewanCanada
| | | | - Jihong Tang
- Yield10 Bioscience, Inc.WoburnMassachusettsUSA
| | | | - Yuanyuan Ji
- Yield10 Oilseeds, Inc.SaskatoonSaskatchewanCanada
| | - Matthew Martino
- Yield10 Bioscience, Inc.WoburnMassachusettsUSA
- Present address:
Middletown High SchoolMiddletownNew YorkUSA
| | - Andrew Hertig
- Yield10 Bioscience, Inc.WoburnMassachusettsUSA
- Present address:
Qualigen TherapeuticsCarlsbadCaliforniaUSA
| | - Dirk Schweitzer
- Yield10 Bioscience, Inc.WoburnMassachusettsUSA
- Present address:
Impact Nano, LLCDevensMassachusettsUSA
| | | | - Kristi D. Snell
- Yield10 Oilseeds, Inc.SaskatoonSaskatchewanCanada
- Yield10 Bioscience, Inc.WoburnMassachusettsUSA
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4
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Kumar V, Lakkaboyana SK, Tsouko E, Maina S, Pandey M, Umesh M, Singhal B, Sharma N, Awasthi MK, Andler R, Jayaraj I, Yuzir A. Commercialization potential of agro-based polyhydroxyalkanoates biorefinery: A technical perspective on advances and critical barriers. Int J Biol Macromol 2023; 234:123733. [PMID: 36801274 DOI: 10.1016/j.ijbiomac.2023.123733] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023]
Abstract
The exponential increase in the use and careless discard of synthetic plastics has created an alarming concern over the environmental health due to the detrimental effects of petroleum based synthetic polymeric compounds. Piling up of these plastic commodities on various ecological niches and entry of their fragmented parts into soil and water has clearly affected the quality of these ecosystems in the past few decades. Among the many constructive strategies developed to tackle this global issue, use of biopolymers like polyhydroxyalkanoates as sustainable alternatives for synthetic plastics has gained momentum. Despite their excellent material properties and significant biodegradability, polyhydroxyalkanoates still fails to compete with their synthetic counterparts majorly due to the high cost associated with their production and purification thereby limiting their commercialization. Usage of renewable feedstocks as substrates for polyhydroxyalkanoates production has been the thrust area of research to attain the sustainability tag. This review work attempts to provide insights about the recent developments in the production of polyhydroxyalkanoates using renewable feedstock along with various pretreatment methods used for substrate preparation for polyhydroxyalkanoates production. Further, the application of blends based on polyhydroxyalkanoates, and the challenges associated with the waste valorization based polyhydroxyalkanoates production strategy is elaborated in this review work.
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Affiliation(s)
- Vinay Kumar
- Ecotoxicity and Bioconversion Laboratory, Department of Community Medicine, Saveetha Medical College and Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, Thandalam 602105, India; Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India.
| | - Sivarama Krishna Lakkaboyana
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600062, India; Department of Chemical and Environmental Engineering (ChEE), Malaysia-Japan International Institute of Technology (MJIIT)-Universiti Technologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
| | - Erminta Tsouko
- Department of Food Science and Nutrition, School of Environment, University of the Aegean, Metropolite Ioakeim 2, 81400, Myrina, Lemnos, Greece
| | - Sofia Maina
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
| | - Muskan Pandey
- School of Biotechnology, Gautam Buddha University, Greater Noida, U.P., India
| | - Mridul Umesh
- Department of Life Sciences, CHRIST (Deemed to be University), Hosur Road, Bengaluru 560029, Karnataka, India
| | - Barkha Singhal
- School of Biotechnology, Gautam Buddha University, Greater Noida, U.P., India
| | - Neha Sharma
- Metagenomics and Bioprocess Design Laboratory, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, PR China
| | - Rodrigo Andler
- Escuela de Ingeniería en Biotecnología, Centro de Biotecnología de los Recursos Naturales (Cenbio), Universidad Católica del Maule, Chile
| | - Iyyappan Jayaraj
- Department of Bioengineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - Ali Yuzir
- Department of Chemical and Environmental Engineering (ChEE), Malaysia-Japan International Institute of Technology (MJIIT)-Universiti Technologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
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5
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Tang X, Shi C, Zhang Z, Chen EY. Crystalline aliphatic polyesters from eight‐membered cyclic (di)esters. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaoyan Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering Peking University Beijing China
- Department of Chemistry Colorado State University Fort Collins Colorado USA
| | - Changxia Shi
- Department of Chemistry Colorado State University Fort Collins Colorado USA
| | - Zhen Zhang
- Department of Chemistry Colorado State University Fort Collins Colorado USA
| | - Eugene Y.‐X. Chen
- Department of Chemistry Colorado State University Fort Collins Colorado USA
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6
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Al-Khairy D, Fu W, Alzahmi AS, Twizere JC, Amin SA, Salehi-Ashtiani K, Mystikou A. Closing the Gap between Bio-Based and Petroleum-Based Plastic through Bioengineering. Microorganisms 2022; 10:microorganisms10122320. [PMID: 36557574 PMCID: PMC9787566 DOI: 10.3390/microorganisms10122320] [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: 10/14/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Bioplastics, which are plastic materials produced from renewable bio-based feedstocks, have been investigated for their potential as an attractive alternative to petroleum-based plastics. Despite the harmful effects of plastic accumulation in the environment, bioplastic production is still underdeveloped. Recent advances in strain development, genome sequencing, and editing technologies have accelerated research efforts toward bioplastic production and helped to advance its goal of replacing conventional plastics. In this review, we highlight bioengineering approaches, new advancements, and related challenges in the bioproduction and biodegradation of plastics. We cover different types of polymers, including polylactic acid (PLA) and polyhydroxyalkanoates (PHAs and PHBs) produced by bacterial, microalgal, and plant species naturally as well as through genetic engineering. Moreover, we provide detailed information on pathways that produce PHAs and PHBs in bacteria. Lastly, we present the prospect of using large-scale genome engineering to enhance strains and develop microalgae as a sustainable production platform.
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Affiliation(s)
- Dina Al-Khairy
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
| | - Weiqi Fu
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
- Department of Marine Science, Ocean College, Zhejiang University & Donghai Laboratory, Zhoushan 316021, China
| | - Amnah Salem Alzahmi
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
- Center for Genomics and Systems Biology (CGSB), Institute Abu Dhabi, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
| | - Jean-Claude Twizere
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
- Laboratory of Viral Interactomes Networks, Unit of Molecular Biology of Diseases, Interdisciplinary Cluster for Applied Genoproteomics (GIGA Institute), University of Liège, 4000 Liège, Belgium
| | - Shady A. Amin
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
- Center for Genomics and Systems Biology (CGSB), Institute Abu Dhabi, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
| | - Kourosh Salehi-Ashtiani
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
- Center for Genomics and Systems Biology (CGSB), Institute Abu Dhabi, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
- Correspondence: (K.S.-A.); (A.M.)
| | - Alexandra Mystikou
- Division of Science and Math, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
- Center for Genomics and Systems Biology (CGSB), Institute Abu Dhabi, New York University Abu Dhabi, Abu Dhabi 129188, United Arab Emirates
- Correspondence: (K.S.-A.); (A.M.)
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7
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Kundu D, Dutta D, Samanta P, Dey S, Sherpa KC, Kumar S, Dubey BK. Valorization of wastewater: A paradigm shift towards circular bioeconomy and sustainability. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157709. [PMID: 35908693 DOI: 10.1016/j.scitotenv.2022.157709] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 07/18/2022] [Accepted: 07/26/2022] [Indexed: 06/15/2023]
Abstract
Limitation in the availability of natural resources like water is the main drive for focussing on resource recovery from wastewater. Rapid urbanization with increased consumption of natural resources has severely affected its management and security. The application of biotechnological processes offers a feasible approach to concentrating and transforming wastewater for resource recovery and a step towards a circular economy. Wastewater generally contains high organic materials, nutrients, metals and chemicals, which have economic value. Hence, its management can be a valuable resource through the implementation of a paradigm transformation for value-added product recovery. This review focuses on the circular economy of "close loop" process by wastewater reuse and energy recovery identifying the emerging technologies for recovering resources across the wastewater treatment phase. Conventional wastewater treatment technologies have been discussed along with the advanced treatment technologies such as algal treatment, anammox technology, microbial fuel cells (MFC). Apart from recovering energy in the form of biogas and biohydrogen, second and third-generation biofuels as well as biohythane and electricity generation have been deliberated. Other options for resource recovery are single-cell protein (SCP), biopolymers as well as recovery of metals and nutrients. The paper also highlights the applications of treated wastewater in agriculture, aquaponics, fisheries and algal cultivation. The concept of Partitions-release-recover (PRR) has been discussed for a better understanding of the filtration treatment coupled with anaerobic digestion. The review provides a critical evaluation on the importance of adopting a circular economy and their role in achieving sustainable development goals (SDGs). Thus, it is imperative that such initiatives towards resource recovery from wastewater through integration of concepts can aid in providing wastewater treatment system with resource efficiency.
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Affiliation(s)
- Debajyoti Kundu
- Waste Re-processing Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nehru Marg, Nagpur 440 020, India
| | - Deblina Dutta
- Waste Re-processing Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nehru Marg, Nagpur 440 020, India
| | - Palas Samanta
- Department of Environmental Science, Sukanta Mahavidyalaya, University of North Bengal, West Bengal 735210, India
| | - Sukhendu Dey
- Department of Environmental Science, The University of Burdwan, Burdwan, West Bengal 713 104, India
| | - Knawang Chhunji Sherpa
- Microbial Processes and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Trivandrum 695 019, Kerala, India
| | - Sunil Kumar
- Waste Re-processing Division, CSIR-National Environmental Engineering Research Institute (NEERI), Nehru Marg, Nagpur 440 020, India.
| | - Brajesh Kumar Dubey
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721 302, India
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8
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Stereoselective synthesis of biodegradable polymers by salen-type metal catalysts. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1377-5] [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]
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9
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Zhang Z, Shi C, Scoti M, Tang X, Chen EYX. Alternating Isotactic Polyhydroxyalkanoates via Site- and Stereoselective Polymerization of Unsymmetrical Diolides. J Am Chem Soc 2022; 144:20016-20024. [PMID: 36256876 DOI: 10.1021/jacs.2c08791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Naturally produced, biodegradable polyhydroxyalkanoates (PHAs) promise more sustainable alternatives to nonrenewable/degradable plastics, but biological PHA's stereomicrostructures are strictly confined to isotactic (R)-polymers or copolymers of random sequences. Chemical synthesis via catalyzed ring-opening polymerization (ROP) of cyclic (di)esters offers expedient access to diverse PHA microstructures, including those with defined comonomer sequences and tacticities. However, the synthesis of alternating isotactic PHAs has not been achieved by the existing methodologies. Here, we report the design of unsymmetrically disubstituted eight-membered diolides (rac-8DLR1-R2) and their site- and stereoselective ROP with discrete chiral catalysts, enabling the synthesis of alternating isotactic PHAs, poly(3-hydroxybutyrate-alt-3-hydroxyvalerate) (alt-P3HBV) and poly(3-hydroxybutyrate-alt-3-hydroxyheptanoate) (alt-P3HBHp), with high to quantitative (>99%) alternation and isotacticity and Mn up to 113 kDa and Đ = 1.01. Physical properties of such PHAs are substantially determined by the degree of backbone sequence alternation and tacticity, ranging from amorphous to semi-crystalline materials. The alt-P3HBV shows significantly improved mechanical performance relative to the constituent homopolymers. Intriguingly, enantiomeric (R)-alt-P3HBV and (S)-alt-P3HBV, synthesized by kinetically resolved ROP of rac-8DLMe-Et, form a stereocomplex with a significantly enhanced Tm (by 53 °C), while the enantiomeric homopolymers do not form a stereocomplex.
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Affiliation(s)
- Zhen Zhang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Changxia Shi
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Miriam Scoti
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States.,Dipartimento di Scienze Chimiche, Università di Napoli Federico II, Complesso Monte S. Angelo, Via Cintia, Napoli 80126, Italy
| | - Xiaoyan Tang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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10
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Johnston B, Adamus G, Ekere AI, Kowalczuk M, Tchuenbou-Magaia F, Radecka I. Bioconversion of Plastic Waste Based on Mass Full Carbon Backbone Polymeric Materials to Value-Added Polyhydroxyalkanoates (PHAs). Bioengineering (Basel) 2022; 9:bioengineering9090432. [PMID: 36134978 PMCID: PMC9496005 DOI: 10.3390/bioengineering9090432] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 11/28/2022] Open
Abstract
This review article will discuss the ways in which various polymeric materials, such as polyethylene (PE), polypropylene (PP), polystyrene (PS), and poly(ethylene terephthalate) (PET) can potentially be used to produce bioplastics, such as polyhydroxyalkanoates (PHAs) through microbial cultivation. We will present up-to-date information regarding notable microbial strains that are actively used in the biodegradation of polyolefins. We will also review some of the metabolic pathways involved in the process of plastic depolymerization and discuss challenges relevant to the valorization of plastic waste. The aim of this review is also to showcase the importance of methods, including oxidative degradation and microbial-based processes, that are currently being used in the fields of microbiology and biotechnology to limit the environmental burden of waste plastics. It is our hope that this article will contribute to the concept of bio-upcycling plastic waste to value-added products via microbial routes for a more sustainable future.
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Affiliation(s)
- Brian Johnston
- Science in Industry Research Centre (SIRC), SciTech Innovation Hub, Wolverhampton Science Park, Glaisher Drive, Wolverhampton WV10 9RU, UK
- School of Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK
- Correspondence: (B.J.); (I.R.)
| | - Grazyna Adamus
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland
| | - Anabel Itohowo Ekere
- School of Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK
| | - Marek Kowalczuk
- School of Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland
| | - Fideline Tchuenbou-Magaia
- School of Engineering, Computing and Mathematical Sciences, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK
| | - Iza Radecka
- School of Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK
- Correspondence: (B.J.); (I.R.)
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11
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Li H, Ollivier J, Guillaume SM, Carpentier JF. Tacticity Control of Cyclic Poly(3-Thiobutyrate) Prepared by Ring-Opening Polymerization of Racemic β-Thiobutyrolactone. Angew Chem Int Ed Engl 2022; 61:e202202386. [PMID: 35286752 DOI: 10.1002/anie.202202386] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Indexed: 12/19/2022]
Abstract
We report here on the ring-opening polymerization (ROP) of racemic β-thiobutyrolactone (rac-TBL), as the first chemical synthesis of poly(3-thiobutyrolactone) (P3TB), the thioester analogue of the ubiquitous poly(3-hydroxybutyrate) (P3HB). The ROP reactions proceed very fast (TOF >12 000 h-1 at r.t.) in the presence of various metal-based catalysts. Remarkably, catalyst systems based on non-chiral yttrium complexes stabilized by tetradentate amino alkoxy- or diamino-bis(phenolate) ligands {ONXOR1,R2 }2- (X=O, N) provide access to cyclic P3TB with either high isoselectivity (Pm up to 0.90) or high syndiotactic bias (Pr up to 0.70). The stereoselectivity can be controlled by manipulation of the substituents on the ligand platform and adequate choice of the reaction solvent and temperature as well. The cyclic polymer topology is evidenced by MALDI-ToF MS, NMR and TGA. Highly isotactic cyclic P3TB is a semi-crystalline material as revealed by DSC.
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Affiliation(s)
- Hui Li
- Univ Rennes, CNRS, ISCR-UMR 6226, 35000, Rennes, France
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12
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Li H, Ollivier J, Guillaume SM, Carpentier J. Tacticity Control of Cyclic Poly(3‐Thiobutyrate) Prepared by Ring‐Opening Polymerization of Racemic β‐Thiobutyrolactone. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hui Li
- Univ Rennes, CNRS, ISCR-UMR 6226 35000 Rennes France
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13
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An Overview of the Alternative Use of Seaweeds to Produce Safe and Sustainable Bio-Packaging. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12063123] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In modern times, seaweeds have become widely involved in several biotechnological applications due to the variety of their constituent bioactive compounds. The consumption of seaweeds dates to ancient times; however, only from the last few decades of research can we explain the mechanisms of action and the potential of seaweed-derived bioactive compounds, which has led to their involvement in food, cosmetic, pharmaceutical, and nutraceutical industries. Macroalgae-derived bioactive compounds are of great importance as their properties enable them to be ideal candidates for the production of sustainable “green” packaging. Diverse studies demonstrate that seaweed polysaccharides (e.g., alginates and carrageenans) not only provide health benefits, but also contribute to the production of biopolymeric film and biodegradable packaging. The dispersion of plastics and microplastics in the oceans provoke serious environmental issues that influence ecosystems and aquatic organisms. Thus, the sustainable use of seaweed-derived biopolymers is now crucial to replace plasticizers with biodegradable materials, and thus preserve the environment. The present review aims to provide an overview on the potential of seaweeds in the production of bioplastics which might be involved in food or pharmaceutical packaging.
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14
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Tang X, Shi C, Zhang Z, Chen EYX. Toughening Biodegradable Isotactic Poly(3-hydroxybutyrate) via Stereoselective Copolymerization of a Diolide and Lactones. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01199] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Changxia Shi
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Zhen Zhang
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Eugene Y.-X. Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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15
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Bhola S, Arora K, Kulshrestha S, Mehariya S, Bhatia RK, Kaur P, Kumar P. Established and Emerging Producers of PHA: Redefining the Possibility. Appl Biochem Biotechnol 2021; 193:3812-3854. [PMID: 34347250 DOI: 10.1007/s12010-021-03626-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 07/12/2021] [Indexed: 12/25/2022]
Abstract
The polyhydroxyalkanoate was discovered almost around a century ago. Still, all the efforts to replace the traditional non-biodegradable plastic with much more environmentally friendly alternative are not enough. While the petroleum-based plastic is like a parasite, taking over the planet rapidly and without any feasible cure, its perennial presence has made the ocean a floating island of life-threatening debris and has flooded the landfills with toxic towering mountains. It demands for an immediate solution; most resembling answer would be the polyhydroxyalkanoates. The production cost is yet one of the significant challenges that various corporate is facing to replace the petroleum-based plastic. To deal with the economic constrain better strain, better practices, and a better market can be adopted for superior results. It demands for systems for polyhydroxyalkanoate production namely bacteria, yeast, microalgae, and transgenic plants. Solely strains affect more than 40% of overall production cost, playing a significant role in both upstream and downstream processes. The highly modifiable nature of the biopolymer provides the opportunity to replace the petroleum plastic in almost all sectors from food packaging to medical industry. The review will highlight the recent advancements and techno-economic analysis of current commercial models of polyhydroxyalkanoate production. Bio-compatibility and the biodegradability perks to be utilized highly efficient in the medical applications gives ample reason to tilt the scale in the favor of the polyhydroxyalkanoate as the new conventional and sustainable plastic.
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Affiliation(s)
- Shivam Bhola
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Kanika Arora
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Saurabh Kulshrestha
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | | | - Ravi Kant Bhatia
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, 171005, India
| | - Parneet Kaur
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Pradeep Kumar
- Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India.
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Muthuraj R, Valerio O, Mekonnen TH. Recent developments in short- and medium-chain- length Polyhydroxyalkanoates: Production, properties, and applications. Int J Biol Macromol 2021; 187:422-440. [PMID: 34324901 DOI: 10.1016/j.ijbiomac.2021.07.143] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/12/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023]
Abstract
Developing renewable resource-based plastics with complete biodegradability and a minimal carbon footprint can open new opportunities to effectively manage the end-of-life plastics waste and achieve a low carbon society. Polyhydroxyalkanoates (PHAs) are biobased and biodegradable thermoplastic polyesters that accumulate in microorganisms (e.g., bacterial, microalgal, and fungal species) as insoluble and inert intracellular inclusion. The PHAs recovery from microorganisms, which typically involves cell lysis, extraction, and purification, provides high molecular weight and purified polyesters that can be compounded and processed using conventional plastics converting equipment. The physio-chemical, thermal, and mechanical properties of the PHAs are comparable to traditional synthetic polymers such as polypropylene and polyethylene. As a result, it has attracted substantial applications interest in packaging, personal care, coatings, agricultural and biomedical uses. However, PHAs have certain performance limitations (e.g. slow crystallization), and substantially more expensive than many other polymers. As such, more research and development is required to enable them for extensive use. This review provides a critical review of the recent progress achieved in PHAs production using different microorganisms, downstream processing, material properties, processing avenues, recycling, aerobic and anaerobic biodegradation, and applications.
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Affiliation(s)
- Rajendran Muthuraj
- Worn Again Technologies Ltd, Bio City, Pennyfoot St, NG1 1GF Nottingham, Nottinghamshire, United Kingdom
| | - Oscar Valerio
- Departamento de Ingeniería Química, Universidad de Concepción, Concepción, Chile
| | - Tizazu H Mekonnen
- Department of Chemical Engineering, Institute of Polymer Research, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, ON, Canada.
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17
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Lhamo P, Behera SK, Mahanty B. Process optimization, metabolic engineering interventions and commercialization of microbial polyhydroxyalkanoates production - A state-of-the art review. Biotechnol J 2021; 16:e2100136. [PMID: 34132046 DOI: 10.1002/biot.202100136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/29/2021] [Accepted: 06/03/2021] [Indexed: 12/31/2022]
Abstract
Microbial polyhydroxyalkanoates (PHAs) produced using renewable resources could be the best alternative for conventional plastics. Despite their incredible potential, commercial production of PHAs remains very low. Nevertheless, sincere attempts have been made by researchers to improve the yield and economic viability of PHA production by utilizing low-cost agricultural or industrial wastes. In this context, the use of efficient microbial culture or consortia, adoption of experimental design to trace ideal growth conditions, nutritional requirements, and intervention of metabolic engineering tools have gained significant attention. This review has been structured to highlight the important microbial sources for PHA production, use of conventional and non-conventional substrates, product optimization using experimental design, metabolic engineering strategies, and global players in the commercialization of PHA in the past two decades. The challenges about PHA recovery and analysis have also been discussed which possess indirect hurdle while expanding the horizon of PHA-based bioplastics. Selection of appropriate microorganism and substrate plays a vital role in improving the productivity and characteristics of PHAs. Experimental design-based bioprocess, use of metabolic engineering tools, and optimal product recovery techniques are invaluable in this dimension. Optimization strategies, which are being explored in isolation, need to be logically integrated for the successful commercialization of microbial PHAs.
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Affiliation(s)
- Pema Lhamo
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
| | - Shishir Kumar Behera
- Industrial Ecology Research Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Biswanath Mahanty
- Department of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu, India
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18
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Li YT, Yu HY, Li WB, Liu Y, Lu XB. Recyclable Polyhydroxyalkanoates via a Regioselective Ring-Opening Polymerization of α,β-Disubstituted β-Lactone Monomers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00097] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu-Tong Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116024 Dalian, China
| | - Hui-Ying Yu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116024 Dalian, China
| | - Wen-Bing Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116024 Dalian, China
| | - Ye Liu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116024 Dalian, China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, 116024 Dalian, China
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Degli Esposti M, Morselli D, Fava F, Bertin L, Cavani F, Viaggi D, Fabbri P. The role of biotechnology in the transition from plastics to bioplastics: an opportunity to reconnect global growth with sustainability. FEBS Open Bio 2021; 11:967-983. [PMID: 33595898 PMCID: PMC8016133 DOI: 10.1002/2211-5463.13119] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/16/2021] [Indexed: 11/08/2022] Open
Abstract
Building new value chains, through the valorization of biomass components for the development of innovative bio‐based products (BBPs) aimed at specific market sectors, will accelerate the transition from traditional production technologies to the concept of biorefineries. Recent studies aimed at mapping the most relevant innovations undergoing in the field of BBPs (Fabbri et al. 2019, Final Report of the Task 3 BIOSPRI Tender Study on Support to R&I Policy in the Area of Bio‐based Products and Services, delivered to the European Commission (DG RTD)), clearly showed the dominant position played by the plastics sector, in which new materials and innovative technical solutions based on renewable resources, concretely contribute to the achievement of relevant global sustainability goals. New sustainable solutions for the plastic sector, either bio‐based or bio‐based and biodegradable, have been intensely investigated in recent years. The global bioplastics and biopolymers market size is expected to grow from USD 10.5 billion in 2020 to USD 27.9 billion by 2025 (Markets and Markets, 2020, Bioplastics & Biopolymers Market by Type (Non‐Biodegradable/Bio‐Based, Biodegradable), End‐Use Industry (Packaging, Consumer Goods, Automotive & Transportation, Textiles, Agriculture & Horticulture), Region ‐ Global Forecast to 2025), and this high growth is driven primarily by the growth of the global packaging end‐use industry. Such relevant opportunities are the outcomes of intensive scientific and technological research devoted to the development of new materials with selected technical features, which can represent feasible substitutes for the fossil‐based plastic materials currently used in the packaging sectors and other main fields. This article offers a map of the latest developments connected to the plastic sector, achieved through the application of biotechnological routes for the preparation of completely new polymeric structures, or drop‐in substitutes derived from renewable resources, and it describes the specific role played by biotechnology in promoting and making this transition faster.
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Affiliation(s)
- Micaela Degli Esposti
- Department of Civil, Chemical, Environmental and Materials Engineering, Alma Mater Studiorum Università di Bologna, Italy.,Bologna Unit, National Interuniversity Consortium for Materials Science and Technology (INSTM), Firenze, Italy
| | - Davide Morselli
- Department of Civil, Chemical, Environmental and Materials Engineering, Alma Mater Studiorum Università di Bologna, Italy.,Bologna Unit, National Interuniversity Consortium for Materials Science and Technology (INSTM), Firenze, Italy
| | - Fabio Fava
- Department of Civil, Chemical, Environmental and Materials Engineering, Alma Mater Studiorum Università di Bologna, Italy
| | - Lorenzo Bertin
- Department of Civil, Chemical, Environmental and Materials Engineering, Alma Mater Studiorum Università di Bologna, Italy
| | - Fabrizio Cavani
- Bologna Unit, National Interuniversity Consortium for Materials Science and Technology (INSTM), Firenze, Italy.,Department of Industrial Chemistry 'Toso Montanari', Alma Mater Studiorum, Università di Bologna, Italy
| | - Davide Viaggi
- Department of Agricultural and Food Sciences, Alma Mater Studiorum Università di Bologna, Italy
| | - Paola Fabbri
- Department of Civil, Chemical, Environmental and Materials Engineering, Alma Mater Studiorum Università di Bologna, Italy.,Bologna Unit, National Interuniversity Consortium for Materials Science and Technology (INSTM), Firenze, Italy
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20
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Mierziak J, Burgberger M, Wojtasik W. 3-Hydroxybutyrate as a Metabolite and a Signal Molecule Regulating Processes of Living Organisms. Biomolecules 2021; 11:biom11030402. [PMID: 33803253 PMCID: PMC8000602 DOI: 10.3390/biom11030402] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 02/06/2023] Open
Abstract
3-hydroxybutyrate (3-HB) as a very important metabolite occurs in animals, bacteria and plants. It is well known that in animals, 3-HB is formed as a product of the normal metabolism of fatty acid oxidation and can therefore be used as an energy source in the absence of sufficient blood glucose. In microorganisms, 3-HB mainly serves as a substrate for the synthesis of polyhydroxybutyrate, which is a reserve material. Recent studies show that in plants, 3-HB acts as a regulatory molecule that most likely influences the expression of genes involved in DNA methylation, thereby altering DNA methylation levels. Additionally, in animals, 3-HB is not only an intermediate metabolite, but also an important regulatory molecule that can influence gene expression, lipid metabolism, neuronal function, and overall metabolic rate. Some of these effects are the direct effects of 3-HB itself, while others are indirect effects, regulated by the metabolites into which 3-HB is converted. One of the most important regulatory functions of 3-HB is the inhibition of the activity of histone deacetylases and thus the epigenetic regulation of many genes. Due to the number of functions of this compound, it also shows promising therapeutic properties.
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21
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Carlozzi P, Touloupakis E. Bioplastic production by feeding the marine Rhodovulum sulfidophilum DSM-1374 with four different carbon sources under batch, fed-batch and semi-continuous growth regimes. N Biotechnol 2020; 62:10-17. [PMID: 33333263 DOI: 10.1016/j.nbt.2020.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 12/05/2020] [Accepted: 12/13/2020] [Indexed: 12/27/2022]
Abstract
In the present study, the ability of the marine bacterium Rhodovulum sulfidophilum DSM-1374 to convert, via photo-fermentative process, certain organic acids such as single carbon source (acetate, lactate, malate and succinate) into polyhydroxyalkanoate accumulations within bacterial cells is evaluated. The main goal of the investigation was poly-3-hydroxybutyrate (P3HB) synthesis by a photo-fermentative process. Of the four carbon sources, only succinate simultaneously produced P3HB and H2 (268 mg/L and 1085 mL/L respectively). Malate was the least productive source for P3HB; the other carbon sources (acetate and lactate) produced a significant amount of polymer (596 mg P3HB/L for acetate and 716 mg P3HB/L for lactate) when R. sulfidophilum was cultured in batch growth conditions. Cumulative P3HB increased significantly when the bacterium was grown under two steps: nutrient sufficient conditions (step 1) followed by macronutrient deficient conditions (step 2). The highest cumulative P3HB was observed at the end of step 2 (1000 mg/L) when R. sulfidophilum was fed with lactate under phosphorus starvation. When grown over 1200 h, under a semi-continuous regimen, the harvested dry-biomass reached a constant content of P3HB (39.1 ± 1.6 % of cell dry-weight), in the semi-steady state condition. Since lactate is an abundant byproduct of world industries, it can be used to mitigate the environmental impact in a modern circular bio-economy.
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Affiliation(s)
- Pietro Carlozzi
- Research Institute on Terrestrial Ecosystems, National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy.
| | - Eleftherios Touloupakis
- Research Institute on Terrestrial Ecosystems, National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy
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22
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Westlie AH, Chen EYX. Catalyzed Chemical Synthesis of Unnatural Aromatic Polyhydroxyalkanoate and Aromatic–Aliphatic PHAs with Record-High Glass-Transition and Decomposition Temperatures. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02110] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Andrea H. Westlie
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Eugene Y.-X. Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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23
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Soil Pollution from Micro- and Nanoplastic Debris: A Hidden and Unknown Biohazard. SUSTAINABILITY 2020. [DOI: 10.3390/su12187255] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The fate, properties and determination of microplastics (MPs) and nanoplastics (NPs) in soil are poorly known. In fact, most of the 300 million tons of plastics produced each year ends up in the environment and the soil acts as a log-term sink for these plastic debris. Therefore, the aim of this review is to discuss MP and NP pollution in soil as well as highlighting the knowledge gaps that are mainly related to the complexity of the soil ecosystem. The fate of MPs and NPs in soil is strongly determined by physical properties of plastics, whereas negligible effect is exerted by their chemical structures. The degradative processes of plastic, termed ageing, besides generating micro-and nano-size debris, can induce marked changes in their chemical and physical properties with relevant effects on their reactivity. Further, these processes could cause the release of toxic oligomeric and monomeric constituents from plastics, as well as toxic additives, which may enter in the food chain, representing a possible hazard to human health and potentially affecting the fauna and flora in the environment. In relation to their persistence in soil, the list of soil-inhabiting, plastic-eating bacteria, fungi and insect is increasing daily. One of the main ecological functions attributable to MPs is related to their function as vectors for microorganisms through the soil. However, the main ecological effect of NPs (limited to the fraction size < than 50 nm) is their capacity to pass through the membrane of both prokaryotic and eukaryotic cells. Soil biota, particularly earthworms and collembola, can be both MPs and NPs carriers through soil profile. The use of molecular techniques, especially omics approaches, can gain insights into the effects of MPs and NPs on composition and activity of microbial communities inhabiting the soil and into those living on MPs surface and in the gut of the soil plastic-ingesting fauna.
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Lu H, Yuan G, Strauss SH, Tschaplinski TJ, Tuskan GA, Chen JG, Yang X. Reconfiguring Plant Metabolism for Biodegradable Plastic Production. BIODESIGN RESEARCH 2020; 2020:9078303. [PMID: 37849903 PMCID: PMC10530661 DOI: 10.34133/2020/9078303] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 07/11/2020] [Indexed: 10/19/2023] Open
Abstract
For decades, plants have been the subject of genetic engineering to synthesize novel, value-added compounds. Polyhydroxyalkanoates (PHAs), a large class of biodegradable biopolymers naturally synthesized in eubacteria, are among the novel products that have been introduced to make use of plant acetyl-CoA metabolic pathways. It was hoped that renewable PHA production would help address environmental issues associated with the accumulation of nondegradable plastic wastes. However, after three decades of effort synthesizing PHAs, and in particular the simplest form polyhydroxybutyrate (PHB), and seeking to improve their production in plants, it has proven very difficult to reach a commercially profitable rate in a normally growing plant. This seems to be due to the growth defects associated with PHA production and accumulation in plant cells. Here, we review major breakthroughs that have been made in plant-based PHA synthesis using traditional genetic engineering approaches and discuss challenges that have been encountered. Then, from the point of view of plant synthetic biology, we provide perspectives on reprograming plant acetyl-CoA pathways for PHA production, with the goal of maximizing PHA yield while minimizing growth inhibition. Specifically, we suggest genetic elements that can be considered in genetic circuit design, approaches for nuclear genome and plastome modification, and the use of multiomics and mathematical modeling in understanding and restructuring plant metabolic pathways.
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Affiliation(s)
- Haiwei Lu
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Guoliang Yuan
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Steven H. Strauss
- Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331, USA
| | - Timothy J. Tschaplinski
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Gerald A. Tuskan
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Jin-Gui Chen
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Xiaohan Yang
- Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
- The Center for Bioenergy Innovation, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
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Tang X, Westlie AH, Caporaso L, Cavallo L, Falivene L, Chen EY. Biodegradable Polyhydroxyalkanoates by Stereoselective Copolymerization of Racemic Diolides: Stereocontrol and Polyolefin‐Like Properties. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916415] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry Colorado State University Fort Collins CO 80523-1872 USA
| | - Andrea H. Westlie
- Department of Chemistry Colorado State University Fort Collins CO 80523-1872 USA
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia Università di Salerno Via Papa Paolo Giovanni II 84084 Fisciano Italy
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST) Physical Sciences and Engineering Division Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Laura Falivene
- King Abdullah University of Science and Technology (KAUST) Physical Sciences and Engineering Division Kaust Catalysis Center Thuwal 23955-6900 Saudi Arabia
| | - Eugene Y.‐X. Chen
- Department of Chemistry Colorado State University Fort Collins CO 80523-1872 USA
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26
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Tang X, Westlie AH, Caporaso L, Cavallo L, Falivene L, Chen EYX. Biodegradable Polyhydroxyalkanoates by Stereoselective Copolymerization of Racemic Diolides: Stereocontrol and Polyolefin-Like Properties. Angew Chem Int Ed Engl 2020; 59:7881-7890. [PMID: 31991036 DOI: 10.1002/anie.201916415] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Indexed: 11/06/2022]
Abstract
Bacterial polyhydroxyalkanoates (PHAs) are a unique class of biodegradable polymers because of their biodegradability in ambient environments and structural diversity enabled by side-chain groups. However, the biosynthesis of PHAs is slow and expensive, limiting their broader applications as commodity plastics. To overcome such limitation, the catalyzed chemical synthesis of bacterial PHAs has been developed, using the metal-catalyzed stereoselective ring-opening (co)polymerization of racemic cyclic diolides (rac-8DLR , R=alkyl group). In this combined experimental and computational study, polymerization kinetics, stereocontrol, copolymerization characteristics, and the properties of the resulting PHAs have been examined. Most notably, stereoselective copolymerizations of rac-8DLMe with rac-8DLR (R=Et, Bu) have yielded high-molecular-weight, crystalline isotactic PHA copolymers that are hard, ductile, and tough plastics, and exhibit polyolefin-like thermal and mechanical properties.
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Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA
| | - Andrea H Westlie
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA
| | - Lucia Caporaso
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Papa Paolo Giovanni II, 84084, Fisciano, Italy
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, Kaust Catalysis Center, Thuwal, 23955-6900, Saudi Arabia
| | - Laura Falivene
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division, Kaust Catalysis Center, Thuwal, 23955-6900, Saudi Arabia
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA
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27
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Lin CY, Eudes A. Strategies for the production of biochemicals in bioenergy crops. BIOTECHNOLOGY FOR BIOFUELS 2020; 13:71. [PMID: 32318116 PMCID: PMC7158082 DOI: 10.1186/s13068-020-01707-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/02/2020] [Indexed: 05/12/2023]
Abstract
Industrial crops are grown to produce goods for manufacturing. Rather than food and feed, they supply raw materials for making biofuels, pharmaceuticals, and specialty chemicals, as well as feedstocks for fabricating fiber, biopolymer, and construction materials. Therefore, such crops offer the potential to reduce our dependency on petrochemicals that currently serve as building blocks for manufacturing the majority of our industrial and consumer products. In this review, we are providing examples of metabolites synthesized in plants that can be used as bio-based platform chemicals for partial replacement of their petroleum-derived counterparts. Plant metabolic engineering approaches aiming at increasing the content of these metabolites in biomass are presented. In particular, we emphasize on recent advances in the manipulation of the shikimate and isoprenoid biosynthetic pathways, both of which being the source of multiple valuable compounds. Implementing and optimizing engineered metabolic pathways for accumulation of coproducts in bioenergy crops may represent a valuable option for enhancing the commercial value of biomass and attaining sustainable lignocellulosic biorefineries.
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Affiliation(s)
- Chien-Yuan Lin
- Joint BioEnergy Institute, Emeryville, CA 94608 USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Aymerick Eudes
- Joint BioEnergy Institute, Emeryville, CA 94608 USA
- Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
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28
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Tang X, Westlie AH, Watson EM, Chen EYX. Stereosequenced crystalline polyhydroxyalkanoates from diastereomeric monomer mixtures. Science 2019; 366:754-758. [DOI: 10.1126/science.aax8466] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 08/23/2019] [Accepted: 10/16/2019] [Indexed: 12/22/2022]
Abstract
Stereoselective polymerization of chiral or prochiral monomers is a powerful method to produce high-performance stereoregular crystalline polymeric materials. However, for monomers with two stereogenic centers, it is generally necessary to separate diastereomers before polymerization, resulting in substantial material loss and added energy cost associated with the separation and purification process. Here we report a diastereoselective polymerization methodology enabled by catalysts that directly polymerize mixtures of eight-membered diolide (8DL) monomers with varying starting ratios of chiral racemic (rac) and achiral meso diastereomers into stereosequenced crystalline polyhydroxyalkanoates with isotactic and syndiotactic stereodiblock or stereotapered block microstructures. These polymers show enhanced ductility and toughness relative to polymers of pure rac-8DL, subject to tuning by variation of the diastereomeric ratio and structure of the 8DL monomers.
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Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Andrea H. Westlie
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Eli M. Watson
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
| | - Eugene Y.-X. Chen
- Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA
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Costa JAV, Freitas BCB, Rosa GM, Moraes L, Morais MG, Mitchell BG. Operational and economic aspects of Spirulina-based biorefinery. BIORESOURCE TECHNOLOGY 2019; 292:121946. [PMID: 31422868 DOI: 10.1016/j.biortech.2019.121946] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/30/2019] [Accepted: 07/31/2019] [Indexed: 06/10/2023]
Abstract
Microalgae biorefinery systems have been extensively studied from the perspective of resources, energy expenditure, biofuel production potential, and high-added value products. The genus Spirulina (Arthrospira) stands out among the microalgae of commercial importance. It accounts for over 30% of biomass produced globally because of high protein concentration and, carotenoid and phycocyanin content. Spirulina cultivation can be used to reduce greenhouse gases and for effluent treatment. Furthermore, its cellular morphology facilitates biomass recovery, which contributes to the process cost reduction. Spirulina biomass is widely applicable in food, feed, cosmetics, biofertilizers, biofuels, and biomaterials. A feasibility analysis of Spirulina biorefinery would provide specific information for the decision-making for the improvement of the Spirulina production process. In that context, this review aimed to present a parameter assessment to contribute to the economic viability of Spirulina production in a biorefinery system.
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Affiliation(s)
- Jorge Alberto Vieira Costa
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS, Brazil.
| | - Barbara Catarina Bastos Freitas
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS, Brazil
| | - Gabriel Martins Rosa
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS, Brazil
| | - Luiza Moraes
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS, Brazil
| | - Michele Greque Morais
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande, Rio Grande-RS, Brazil
| | - B Greg Mitchell
- Scripps Institute of Oceanography (SIO), University of California, San Diego, CA, United States
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30
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Winnacker M. Polyhydroxyalkanoates: Recent Advances in Their Synthesis and Applications. EUR J LIPID SCI TECH 2019. [DOI: 10.1002/ejlt.201900101] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Malte Winnacker
- WACKER‐Chair of Macromolecular ChemistryTechnical University of Munich Lichtenbergstraße 4 85747 Garching bei München Germany
- Catalysis Research Center Ernst‐Otto‐Fischer Straße 1 85748 Garching bei München Germany
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31
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Johnston B, Radecka I, Chiellini E, Barsi D, Ilieva VI, Sikorska W, Musioł M, Zięba M, Chaber P, Marek AA, Mendrek B, Ekere AI, Adamus G, Kowalczuk M. Mass Spectrometry Reveals Molecular Structure of Polyhydroxyalkanoates Attained by Bioconversion of Oxidized Polypropylene Waste Fragments. Polymers (Basel) 2019; 11:polym11101580. [PMID: 31569718 PMCID: PMC6835674 DOI: 10.3390/polym11101580] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/18/2019] [Accepted: 09/25/2019] [Indexed: 12/16/2022] Open
Abstract
This study investigated the molecular structure of the polyhydroxyalkanoate (PHA) produced via a microbiological shake flask experiment utilizing oxidized polypropylene (PP) waste as an additional carbon source. The bacterial strain Cupriavidus necator H16 was selected as it is non-pathogenic, genetically stable, robust, and one of the best known producers of PHA. Making use of PHA oligomers, formed by controlled moderate-temperature degradation induced by carboxylate moieties, by examination of both the parent and fragmentation ions, the ESI-MS/MS analysis revealed the 3-hydroxybutyrate and randomly distributed 3-hydroxyvalerate as well as 3-hydroxyhexanoate repeat units. Thus, the bioconversion of PP solid waste to a value-added product such as PHA tert-polymer was demonstrated.
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Affiliation(s)
- Brian Johnston
- Wolverhampton School of Biology, Chemistry and Forensic Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK.
| | - Iza Radecka
- Wolverhampton School of Biology, Chemistry and Forensic Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK.
| | - Emo Chiellini
- Laboratorio Materiali Polimerici Ecocompatibili (LMPE), via Nuova, 44/a, Segromigno in Monte, 55018 Capannori (LU), Italy.
| | - David Barsi
- Laboratorio Materiali Polimerici Ecocompatibili (LMPE), via Nuova, 44/a, Segromigno in Monte, 55018 Capannori (LU), Italy.
| | - Vassilka Ivanova Ilieva
- Laboratorio Materiali Polimerici Ecocompatibili (LMPE), via Nuova, 44/a, Segromigno in Monte, 55018 Capannori (LU), Italy.
| | - Wanda Sikorska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland.
| | - Marta Musioł
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland.
| | - Magdalena Zięba
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland.
| | - Paweł Chaber
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland.
| | - Adam A Marek
- Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, 44-100 Gliwice, Poland.
| | - Barbara Mendrek
- Wolverhampton School of Biology, Chemistry and Forensic Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK.
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland.
| | - Anabel Itohowo Ekere
- Wolverhampton School of Biology, Chemistry and Forensic Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK.
| | - Grazyna Adamus
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland.
| | - Marek Kowalczuk
- Wolverhampton School of Biology, Chemistry and Forensic Science, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton WV1 1LY, UK.
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-800 Zabrze, Poland.
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32
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Carlozzi P, Touloupakis E, Di Lorenzo T, Giovannelli A, Seggiani M, Cinelli P, Lazzeri A. Whey and molasses as inexpensive raw materials for parallel production of biohydrogen and polyesters via a two-stage bioprocess: New routes towards a circular bioeconomy. J Biotechnol 2019; 303:37-45. [PMID: 31351109 DOI: 10.1016/j.jbiotec.2019.07.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/16/2019] [Accepted: 07/23/2019] [Indexed: 11/30/2022]
Abstract
Consecutive dark-fermentation and photo-fermentation stages were investigated for a profitable circular bio-economy. H2 photo-production versus poly(3-hydroxybutyrate) (P3HB) accumulation is a modern biotechnological approach to use agro-food industrial byproducts as no-cost rich-nutrient medium in eco-sustainable biological processes. Whey and molasses are very important byproducts rich in nutrients that lactic acid bacteria can convert, by dark-fermentation, in dark fermented effluents of whey (DFEW) and molasses (DFEM). These effluents are proper media for culturing purple non-sulfur bacteria, which are profitable producers of P3HB and H2. The results of the present study show that Lactobacillus sp. and Rhodopseudomonas sp. S16-VOGS3 are two representative genera for mitigation of environmental impact. The highest productivity of P3HB (4.445 mg/(L·h)) was achieved culturing Rhodopseudomonas sp. S16-VOGS3, when feeding the bacterium with 20% of DFEM; the highest H2 production rate of 4.46 mL/(L·h) was achieved when feeding the bacterium with 30% of DFEM.
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Affiliation(s)
- Pietro Carlozzi
- Research Institute on Terrestrial Ecosystems, National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy.
| | - Eleftherios Touloupakis
- Research Institute on Terrestrial Ecosystems, National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy
| | - Tiziana Di Lorenzo
- Research Institute on Terrestrial Ecosystems, National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy
| | - Alessio Giovannelli
- Research Institute on Terrestrial Ecosystems, National Research Council, Via Madonna del Piano 10, 50019, Sesto Fiorentino (FI), Italy
| | - Maurizia Seggiani
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
| | - Patrizia Cinelli
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy
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Rigouin C, Lajus S, Ocando C, Borsenberger V, Nicaud JM, Marty A, Avérous L, Bordes F. Production and characterization of two medium-chain-length polydroxyalkanoates by engineered strains of Yarrowia lipolytica. Microb Cell Fact 2019; 18:99. [PMID: 31151440 PMCID: PMC6545009 DOI: 10.1186/s12934-019-1140-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 05/17/2019] [Indexed: 11/24/2022] Open
Abstract
Background The oleaginous yeast Yarrowia lipolytica is an organism of choice for the tailored production of various compounds such as biofuels or biopolymers. When properly engineered, it is capable of producing medium-chain-length polyhydroxyalkanoate (mcl-PHA), a biobased and biodegradable polymer that can be used as bioplastics or biopolymers for environmental and biomedical applications. Results This study describes the bioproduction and the main properties of two different mcl-PHA polymers. We generated by metabolic engineering, strains of Y. lipolytica capable of accumulating more than 25% (g/g) of mcl-PHA polymers. Depending of the strain genetic background and the culture conditions, we produced (i) a mcl-PHA homopolymer of 3-hydroxydodecanoic acids, with a mass-average molar mass (Mw) of 316,000 g/mol, showing soft thermoplastic properties with potential applications in packaging and (ii) a mcl-PHA copolymer made of 3-hydroxyoctanoic (3HO), decanoic (3HD), dodecanoic (3HDD) and tetradecanoic (3TD) acids with a Mw of 128,000 g/mol, behaving like a thermoplastic elastomer with potential applications in biomedical material. Conclusion The ability to engineer Y. lipolytica to produce tailored PHAs together with the range of possible applications regarding their biophysical and mechanical properties opens new perspectives in the field of PHA bioproduction. Electronic supplementary material The online version of this article (10.1186/s12934-019-1140-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Coraline Rigouin
- LISBP, CNRS, INRA, INSA, Université de Toulouse, Toulouse, France
| | - Sophie Lajus
- LISBP, CNRS, INRA, INSA, Université de Toulouse, Toulouse, France
| | - Connie Ocando
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg Cedex 2, France
| | | | - Jean Marc Nicaud
- Micalis Institute, INRA-AgroParisTech, UMR1319, Team BIMLip: Integrative Metabolism of Microbial Lipids, Domaine de Vilvert, 78352, Jouy-en-Josas, France
| | - Alain Marty
- Carbios - Biopôle Clermont-Limagne, 3 rue Emile Duclaux, 63360, Saint-Beauzire, France
| | - Luc Avérous
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg Cedex 2, France
| | - Florence Bordes
- LISBP, CNRS, INRA, INSA, Université de Toulouse, Toulouse, France.
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34
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Harting R, Johnston K, Petersen S. Correlating in vitro degradation and drug release kinetics of biopolymer-based drug delivery systems. INTERNATIONAL JOURNAL OF BIOBASED PLASTICS 2019. [DOI: 10.1080/24759651.2018.1563358] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- R. Harting
- Laboratory for Chemistry and Surface Modification, University of Applied Sciences Osnabrück, Osnabrück, Germany
| | - K. Johnston
- Department Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - S. Petersen
- Laboratory for Chemistry and Surface Modification, University of Applied Sciences Osnabrück, Osnabrück, Germany
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35
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Draft Genome Sequence of
Halomonas
sp. Strain SL1, a Putative Polyhydroxyalkanoate-Producing Halophile. Microbiol Resour Announc 2019; 8:MRA00915-18. [PMID: 30637379 PMCID: PMC6318350 DOI: 10.1128/mra.00915-18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 11/26/2018] [Indexed: 11/20/2022] Open
Abstract
Halomonas sp. strain SL1, a halophilic gammaproteobacterium, was isolated from samples from the Great Salt Lake in Utah. We report here the draft genome sequence of SL1, which has an estimated total sequence length of 3.6 Mb. Halomonas sp. strain SL1, a halophilic gammaproteobacterium, was isolated from samples from the Great Salt Lake in Utah. We report here the draft genome sequence of SL1, which has an estimated total sequence length of 3.6 Mb.
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36
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Gonçalves SPCC, Strauss M, Martinez DST. The Positive Fate of Biochar Addition to Soil in the Degradation of PHBV-Silver Nanoparticle Composites. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:13845-13853. [PMID: 30354084 DOI: 10.1021/acs.est.8b01524] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The environmental contamination of soils by polymeric and nanomaterials is an increasing global concern. Polymeric composites containing silver nanoparticles (AgNP) are collectively one of the most important products of nanotechnology due to their remarkable antimicrobial activity. Biochars are a promising resource for environmental technologies for remediation of soils considering their high inorganic and organic pollutant adsorption capacity and microbial soil consortium stimulation. In this work we report, for the first time, the use of biochar material as a tool to accelerate the degradation of polyhydroxybutyrate- co-valerate (PHBV) and PHBV composites containing AgNP in a tropical soil system, under laboratory conditions. This positive effect is associated with microbial community improvement, which increased the degradation rate of the polymeric materials, as confirmed by integrated techniques for advanced materials characterization. The addition of 5-10% of sugarcane bagasse biochar into soil has increased the degradation of these polymeric materials 2 to 3 times after 30 days of soil incubation. However, the presence of silver nanoparticles in the PHBV significantly reduced the degradability potential of this nanocomposite by the soil microbial community. These results provide evidence that AgNP or Ag+ ions caused a decline in the total number of bacteria and fungi, which diminished the polymer degradation rate in soil. Finally, this work highlights the great potential of biochar resources for application in soil remediation technologies, such as polymeric (nano)material biodegradation.
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Affiliation(s)
- Suely Patrı Cia Costa Gonçalves
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
| | - Mathias Strauss
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
| | - Diego Stéfani Teodoro Martinez
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
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37
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Abstract
Population growth, climate change, and dwindling finite resources are amongst the major challenges which are facing the planet. Requirements for food, materials, water, and energy will soon exceed capacity. Green biotechnology, fueled by recent plant synthetic biology breakthroughs, may offer solutions. This review summarizes current progress towards robust and predictable engineering of plants. I then discuss applications from the lab and field, with a focus on bioenergy, biomaterials, and medicine.
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Affiliation(s)
- Jenny C Mortimer
- 1 Biosciences Area, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.,2 Joint BioEnergy Institute, Emeryville, CA 94608, USA
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38
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McGraw M, Chen EYX. Catalytic Lewis Pair Polymerization of Renewable Methyl Crotonate to High-Molecular-Weight Polymers. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03017] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael McGraw
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
| | - Eugene Y.-X. Chen
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, United States
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39
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The Microbial Production of Polyhydroxyalkanoates from Waste Polystyrene Fragments Attained Using Oxidative Degradation. Polymers (Basel) 2018; 10:polym10090957. [PMID: 30960882 PMCID: PMC6404237 DOI: 10.3390/polym10090957] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 08/23/2018] [Accepted: 08/24/2018] [Indexed: 01/26/2023] Open
Abstract
Excessive levels of plastic waste in our oceans and landfills indicate that there is an abundance of potential carbon sources with huge economic value being neglected. These waste plastics, through biological fermentation, could offer alternatives to traditional petrol-based plastics. Polyhydroxyalkanoates (PHAs) are a group of plastics produced by some strains of bacteria that could be part of a new generation of polyester materials that are biodegradable, biocompatible, and, most importantly, non-toxic if discarded. This study introduces the use of prodegraded high impact and general polystyrene (PS0). Polystyrene is commonly used in disposable cutlery, CD cases, trays, and packaging. Despite these applications, some forms of polystyrene PS remain financially and environmentally expensive to send to landfills. The prodegraded PS0 waste plastics used were broken down at varied high temperatures while exposed to ozone. These variables produced PS flakes (PS1⁻3) and a powder (PS4) with individual acid numbers. Consequently, after fermentation, different PHAs and amounts of biomass were produced. The bacterial strain, Cupriavidus necator H16, was selected for this study due to its well-documented genetic profile, stability, robustness, and ability to produce PHAs at relatively low temperatures. The accumulation of PHAs varied from 39% for prodegraded PS0 in nitrogen rich media to 48% (w/w) of dry biomass with the treated PS. The polymers extracted from biomass were analyzed using nuclear magnetic resonance (NMR) and electrospray ionization tandem mass spectrometry (ESI-MS/MS) to assess their molecular structure and properties. In conclusion, the PS0⁻3 specimens were shown to be the most promising carbon sources for PHA biosynthesis; with 3-hydroxybutyrate and up to 12 mol % of 3-hydroxyvalerate and 3-hydroxyhexanoate co-monomeric units generated.
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40
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Pouvreau B, Vanhercke T, Singh S. From plant metabolic engineering to plant synthetic biology: The evolution of the design/build/test/learn cycle. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 273:3-12. [PMID: 29907306 DOI: 10.1016/j.plantsci.2018.03.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 02/19/2018] [Accepted: 03/28/2018] [Indexed: 05/21/2023]
Abstract
Genetic improvement of crops started since the dawn of agriculture and has continuously evolved in parallel with emerging technological innovations. The use of genome engineering in crop improvement has already revolutionised modern agriculture in less than thirty years. Plant metabolic engineering is still at a development stage and faces several challenges, in particular with the time necessary to develop plant based solutions to bio-industrial demands. However the recent success of several metabolic engineering approaches applied to major crops are encouraging and the emerging field of plant synthetic biology offers new opportunities. Some pioneering studies have demonstrated that synthetic genetic circuits or orthogonal metabolic pathways can be introduced into plants to achieve a desired function. The combination of metabolic engineering and synthetic biology is expected to significantly accelerate crop improvement. A defining aspect of both fields is the design/build/test/learn cycle, or the use of iterative rounds of testing modifications to refine hypotheses and develop best solutions. Several technological and technical improvements are now available to make a better use of each design, build, test, and learn components of the cycle. All these advances should facilitate the rapid development of a wide variety of bio-products for a world in need of sustainable solutions.
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Affiliation(s)
- Benjamin Pouvreau
- CSIRO Agriculture and Food, PO Box 1600, Canberra, ACT 2601, Australia.
| | - Thomas Vanhercke
- CSIRO Agriculture and Food, PO Box 1600, Canberra, ACT 2601, Australia
| | - Surinder Singh
- CSIRO Agriculture and Food, PO Box 1600, Canberra, ACT 2601, Australia
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41
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Gomes de Oliveira Dal'Molin C, Quek LE, Saa PA, Palfreyman R, Nielsen LK. From reconstruction to C 4 metabolic engineering: A case study for overproduction of polyhydroxybutyrate in bioenergy grasses. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 273:50-60. [PMID: 29907309 DOI: 10.1016/j.plantsci.2018.03.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/27/2018] [Accepted: 03/01/2018] [Indexed: 06/08/2023]
Abstract
The compartmentalization of C4 plants increases photosynthetic efficiency, while constraining how material and energy must flow in leaf tissues. To capture this metabolic phenomenon, a generic plant metabolic reconstruction was replicated into four connected spatiotemporal compartments, namely bundle sheath (B) and mesophyll (M) across the day and night cycle. The C4 leaf model was used to explore how amenable polyhydroxybutyrate (PHB) production is with these four compartments working cooperatively. A strategic pattern of metabolite conversion and exchange emerged from a systems-level network that has very few constraints imposed; mainly the sequential two-step carbon capture in mesophyll, then bundle sheath and photosynthesis during the day only. The building of starch reserves during the day and their mobilization during the night connects day and night metabolism. Flux simulations revealed that PHB production did not require rerouting of metabolic pathways beyond what is already utilised for growth. PHB yield was sensitive to photoassimilation capacity, availability of carbon reserves, ATP maintenance, relative photosynthetic activity of B and M, and type of metabolites exchanged in the plasmodesmata, but not sensitive towards compartmentalization. Hence, the compartmentalization issues currently encountered are likely to be kinetic or thermodynamic limitations rather than stoichiometric.
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Affiliation(s)
- Cristiana Gomes de Oliveira Dal'Molin
- Australian Institute for Bioengineering and Nanotechnology, School of Chemical Engineering, University of Queensland, Brisbane, Queensland 4072, Australia.
| | - Lake-Ee Quek
- School of Mathematics and Statistics, The University of Sydney, New South Wales 2006, Australia
| | - Pedro A Saa
- Department of Chemical and Bioprocess Engineering, Pontificia Universidad Católica de Chile, Santiago, Casilla 306, Correo 22, Chile; Mathomics, Center for Mathematical Modeling, Universidad de Chile, Santiago, Chile
| | - Robin Palfreyman
- Australian Institute for Bioengineering and Nanotechnology, School of Chemical Engineering, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Lars Keld Nielsen
- Australian Institute for Bioengineering and Nanotechnology, School of Chemical Engineering, University of Queensland, Brisbane, Queensland 4072, Australia; Novo Nordisk Foundation Center for Biosustainability, The Technical University of Denmark, Lyngby, DK-2800, Denmark
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42
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Ambavaram MMR, Ali A, Ryan KP, Peoples O, Snell KD, Somleva MN. Novel transcription factors PvBMY1 and PvBMY3 increase biomass yield in greenhouse-grown switchgrass (Panicum virgatum L.). PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 273:100-109. [PMID: 29907302 DOI: 10.1016/j.plantsci.2018.04.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 06/08/2023]
Abstract
Increasing crop yield requires the coordination of multiple metabolic pathways spanning photosynthetic carbon fixation, central carbon metabolism, and finally targeted carbon deposition to end product. In this study, we used a transcriptome-based gene regulatory association network to search for transcription factor genes that could play a role in increasing carbon flow through pathways associated with these processes to increase biomass yield in switchgrass. Two novel switchgrass transcription factors, PvBMY1 (BioMass Yield 1, belonging to the APETALA2/Ethylene Response Factor family of transcription factors) and PvBMY3 (BioMass Yield 3, a member of the Nuclear-Factor Y family of transcription factors), with predicted roles in the regulation of photosynthesis and related metabolism were identified. These genes were overexpressed in switchgrass to determine their impact on biomass yield. A significant increase in both aboveground and root biomass was observed in transgenic greenhouse grown plants compared to wild-type control plants with the best line producing 160% more aboveground biomass than controls. Transgenic lines with elevated electron transport rate of photosystems I and II as well as increased levels of starch and soluble sugars were identified.
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Affiliation(s)
| | - Aminat Ali
- Yield10 Bioscience, Inc., 19 Presidential Way, Woburn, MA 01801, United States
| | - Kieran P Ryan
- Yield10 Bioscience, Inc., 19 Presidential Way, Woburn, MA 01801, United States
| | - Oliver Peoples
- Yield10 Bioscience, Inc., 19 Presidential Way, Woburn, MA 01801, United States
| | - Kristi D Snell
- Yield10 Bioscience, Inc., 19 Presidential Way, Woburn, MA 01801, United States.
| | - Maria N Somleva
- Yield10 Bioscience, Inc., 19 Presidential Way, Woburn, MA 01801, United States
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43
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Masani MYA, Izawati AMD, Rasid OA, Parveez GKA. Biotechnology of oil palm: Current status of oil palm genetic transformation. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2018.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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44
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Tang X, Chen EYX. Chemical synthesis of perfectly isotactic and high melting bacterial poly(3-hydroxybutyrate) from bio-sourced racemic cyclic diolide. Nat Commun 2018; 9:2345. [PMID: 29891896 PMCID: PMC5995816 DOI: 10.1038/s41467-018-04734-3] [Citation(s) in RCA: 90] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/18/2018] [Indexed: 01/16/2023] Open
Abstract
Bacterial poly(3-hydroxybutyrate) (P3HB) is a perfectly isotactic, crystalline material possessing properties suitable for substituting petroleum plastics, but high costs and low volumes of its production are impractical for commodity applications. The chemical synthesis of P3HB via ring-opening polymerization (ROP) of racemic β-butyrolactone has attracted intensive efforts since the 1960s, but not yet produced P3HB with high isotacticity and molecular weight. Here, we report a route utilizing racemic cyclic diolide (rac-DL) derived from bio-sourced succinate. With stereoselective racemic catalysts, the ROP of rac-DL under ambient conditions produces rapidly P3HB with perfect isotacticity ([mm] > 99%), high melting temperature (Tm = 171 °C), and high molecular weight (Mn = 1.54 × 105 g mol-1, Đ = 1.01). With enantiomeric catalysts, kinetic resolution polymerizations of rac-DL automatically stops at 50% conversion and yields enantiopure (R,R)-DL and (S,S)-DL with >99% e.e. and the corresponding poly[(S)-3HB] and poly[(R)-3HB] with high Tm = 175 °C.
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Affiliation(s)
- Xiaoyan Tang
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA
| | - Eugene Y-X Chen
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523-1872, USA.
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Rajput BS, Ram F, Menon SK, Shanmuganathan K, Chikkali SH. Cross-metathesis of biorenewable dioxalates and diols to film-forming degradable polyoxalates. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bhausaheb S. Rajput
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road; Pune 411008 India
| | - Farsa Ram
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road; Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Anusandhan Bhawan 2 Rafi Marg; New Delhi 110001 India
| | - Shamal K. Menon
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road; Pune 411008 India
| | - Kadhiravan Shanmuganathan
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road; Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Anusandhan Bhawan 2 Rafi Marg; New Delhi 110001 India
| | - Samir H. Chikkali
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road; Pune 411008 India
- Academy of Scientific and Innovative Research (AcSIR) Anusandhan Bhawan 2 Rafi Marg; New Delhi 110001 India
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Rodi EG, Langlois V, Renard E, Sansalone V, Lemaire T. Biocomposites Based on Poly(3-Hydroxybutyrate- co-3-Hydroxyvalerate) (PHBHV) and Miscanthus giganteus Fibers with Improved Fiber/Matrix Interface. Polymers (Basel) 2018; 10:polym10050509. [PMID: 30966543 PMCID: PMC6415392 DOI: 10.3390/polym10050509] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 04/27/2018] [Accepted: 04/30/2018] [Indexed: 11/16/2022] Open
Abstract
In this paper, green biocomposites based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) and Miscanthus giganteus fibers (MIS) were prepared in the presence of dicumyl peroxide (DCP) via reactive extrusion. The objective of this study was to optimize the interfacial adhesion between the reinforcement and the matrix, improving the mechanical properties of the final material. To this aim, two fibers mass fractions (5 and 20 wt %) and two different fiber sizes obtained by two opening mesh sieves (1 mm and 45 μm) were investigated. The impregnation of fibers with DCP before processing was carried out in order to promote the PHBHV grafting onto MIS fibers during the process, favoring, in this way, the interfacial adhesion between fibers and matrix, instead of the crosslinking of the matrix. All composites were realized by extrusion and injection molding processing and then characterized by tensile tests, FTIR-ATR, SEM, DSC and XRD. According to the improved adhesion of fibers to matrix due to DCP, we carried out an implementation of models involving that can predict the effective mechanical properties of the biocomposites. Three phases were taken into account here: fibers, gel (crosslinked matrix), and matrix fractions. Due to the complexity of the system (matrix–crosslinked matrix–fibers) and to the lack of knowledge about all the phenomena occurring during the reactive extrusion, a mathematical approach was considered in order to obtain information about the modulus of the crosslinked matrix and its fraction in the composites. This study aims to estimate these last values, and to clarify the effect caused by the presence of vegetal fibers in a composite in which different reactions are promoted by DCP.
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Affiliation(s)
- Erica Gea Rodi
- Laboratoire de Modélisation et Simulation Multi-Echelle, Université Paris Est, UMR 8208, CNRS 61 Avenue du Général de Gaulle, 94010 Crétéil, France.
- Institut de Chimie et des Matériaux Paris-Est, Université Paris Est, UMR 7182, CNRS, 2-8 rue Henri Dunant, 94320 Thiais, France.
| | - Valérie Langlois
- Institut de Chimie et des Matériaux Paris-Est, Université Paris Est, UMR 7182, CNRS, 2-8 rue Henri Dunant, 94320 Thiais, France.
| | - Estelle Renard
- Institut de Chimie et des Matériaux Paris-Est, Université Paris Est, UMR 7182, CNRS, 2-8 rue Henri Dunant, 94320 Thiais, France.
| | - Vittorio Sansalone
- Laboratoire de Modélisation et Simulation Multi-Echelle, Université Paris Est, UMR 8208, CNRS 61 Avenue du Général de Gaulle, 94010 Crétéil, France.
| | - Thibault Lemaire
- Laboratoire de Modélisation et Simulation Multi-Echelle, Université Paris Est, UMR 8208, CNRS 61 Avenue du Général de Gaulle, 94010 Crétéil, France.
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Bello-Gil D, Maestro B, Fonseca J, Dinjaski N, Prieto MA, Sanz JM. Poly-3-Hydroxybutyrate Functionalization with BioF-Tagged Recombinant Proteins. Appl Environ Microbiol 2018; 84:e02595-17. [PMID: 29196289 PMCID: PMC5795070 DOI: 10.1128/aem.02595-17] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 11/27/2017] [Indexed: 11/20/2022] Open
Abstract
Polyhydroxyalkanoates (PHAs) are biodegradable polyesters that accumulate in the cytoplasm of certain bacteria. One promising biotechnological application utilizes these biopolymers as supports for protein immobilization. Here, the PHA-binding domain of the Pseudomonas putida KT2440 PhaF phasin (BioF polypeptide) was investigated as an affinity tag for the in vitro functionalization of poly-3-hydroxybutyrate (PHB) particles with recombinant proteins, namely, full-length PhaF and two fusion proteins tagged to BioF (BioF-C-LytA and BioF-β-galactosidase, containing the choline-binding module C-LytA and the β-galactosidase enzyme, respectively). The protein-biopolyester interaction was strong and stable at a wide range of pHs and temperatures, and the bound protein was highly protected from self-degradation, while the binding strength could be modulated by coating with amphiphilic compounds. Finally, BioF-β-galactosidase displayed very stable enzymatic activity after several continuous activity-plus-washing cycles when immobilized in a minibioreactor. Our results demonstrate the potentialities of PHA and the BioF tag for the construction of novel bioactive materials.IMPORTANCE Our results confirm the biotechnological potential of the BioF affinity tag as a versatile tool for functionalizing PHA supports with recombinant proteins, leading to novel bioactive materials. The wide substrate range of the BioF tag presumably enables protein immobilization in vitro of virtually all natural PHAs as well as blends, copolymers, or artificial chemically modified derivatives with novel physicochemical properties. Moreover, the strength of protein adsorption may be easily modulated by varying the coating of the support, providing new perspectives for the engineering of bioactive materials that require a tight control of protein loading.
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Affiliation(s)
- Daniel Bello-Gil
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Elche, Spain
| | - Beatriz Maestro
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Elche, Spain
| | - Jennifer Fonseca
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Elche, Spain
| | - Nina Dinjaski
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CIB-CSIC), Madrid, Spain
| | - M Auxiliadora Prieto
- Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas (CIB-CSIC), Madrid, Spain
| | - Jesús M Sanz
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández, Elche, Spain
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Gredes T, Schönitz S, Gedrange T, Stepien L, Kozak K, Kunert-Keil C. In vivo analysis of covering materials composed of biodegradable polymers enriched with flax fibers. Biomater Res 2017; 21:8. [PMID: 28529764 PMCID: PMC5437395 DOI: 10.1186/s40824-017-0094-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/11/2017] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND The objective of this study was to investigate the in vivo effect of bioactive composites with poly(lactic acid) (PLA) or polycaprolactone (PCL) as the matrix, reinforced with bioplastic flax fibers, on the surrounding muscle tissue. METHODS Materials of pure PLA and PCL and their composites with flax fibers from genetically modified plants producing poly-3-hydroxybutyrate (PLA-transgen, PCL-transgen) and unmodified plants (PLA-wt, PCL-wt) were placed subcutaneous on the M. latissimus dorsi for four weeks. RESULTS The analysis of histological samples revealed that every tested material was differently encapsulated and the capsule thickness is much more pronounced when using the PCL composites in comparison with the PLA composites. The encapsulation by connective tissue was significantly reduced around PCL-transgen and significantly increased in the cases of PLA-transgen and PLA-wt. In the collected muscle samples, the measured protein expression of CD45, lymphocyte common antigen, was significantly increased after the use of all tested materials, with the exception of pure PCL. In contrast, the protein expression of caveolin-1 remained unchanged after treatment with the most examined materials. Only after insertion of PLA-wt, a significant increase of caveolin-1 protein expression was detected, due to the improved neovascularization. CONCLUSION These data support the presumption that the new bioactive composites are biocompatible and they could be applicable in the medical field to support the regenerative processes.
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Affiliation(s)
- Tomasz Gredes
- Department of Orthodontics, Carl Gustav Carus Campus, Technische Universität Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
| | - Sandra Schönitz
- Department of Orthodontics, Carl Gustav Carus Campus, Technische Universität Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
| | - Tomasz Gedrange
- Department of Orthodontics, Carl Gustav Carus Campus, Technische Universität Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
| | - Lukas Stepien
- Fraunhofer IWS, Winterbergstr. 28, D-01277 Dresden, Germany
| | - Karol Kozak
- Clinic for Neurology, Carl Gustav Carus Campus, Technische Universität Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
- Fraunhofer IWS, Winterbergstr. 28, D-01277 Dresden, Germany
| | - Christiane Kunert-Keil
- Department of Orthodontics, Carl Gustav Carus Campus, Technische Universität Dresden, Fetscherstr. 74, D-01307 Dresden, Germany
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Yoshizumi T, Yamada M, Higuchi-Takeuchi M, Matsumoto K, Taguchi S, Matsui M, Numata K. Sucrose supplementation suppressed the growth inhibition in polyhydroxyalkanoate-producing plants. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2017; 34:39-43. [PMID: 31275006 PMCID: PMC6543704 DOI: 10.5511/plantbiotechnology.16.1121a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 11/21/2016] [Indexed: 06/09/2023]
Abstract
Polyhydroxyalkanoate (PHA) is a thermoplastic polymer with several advantageous properties, including biomass origin, biocompatibility, and biodegradability. PHA is synthesized in transgenic plants harboring 3 enzymatic genes: phaA, phaB, and phaC (collectively referred to as phaABC). PHA-producing plants exhibit severe growth inhibition that leads to extremely low PHA accumulation when these enzymes are localized in the cytosol. This growth inhibition could be attributed to the deleterious effects of the PHA biosynthetic pathway on endogenous essential metabolites or to PHA cytotoxicity itself. We performed precise morphological observations of phaABC-overexpressing Arabidopsis (ABC-ox), which displayed typical growth inhibition. On growth medium without sucrose, ABC-ox exhibited a pale green phenotype, dwarfism, including small cotyledons and true leaves, and short roots. ABC-ox partially recovered from this growth inhibition when the growth medium was supplemented with 1% sucrose. This recovery was reversed after ABC-ox grown on 1% sucrose medium was transferred to soil. ABC-ox grown on 1% sucrose medium not only demonstrated recovery from growth inhibition but were also the only examined plants with PHA accumulation, suggesting that growth inhibition was not caused by PHA cytotoxicity but rather by a lack of essential metabolites.
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Affiliation(s)
- Takeshi Yoshizumi
- Enzyme Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Miwa Yamada
- Enzyme Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Mieko Higuchi-Takeuchi
- Enzyme Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Ken’ichiro Matsumoto
- Division of Biotechnology and Macromolecular Chemistry, Graduate School of Engineering, Hokkaido University, N13-W8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Seiichi Taguchi
- Division of Biotechnology and Macromolecular Chemistry, Graduate School of Engineering, Hokkaido University, N13-W8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Minami Matsui
- Synthetic Genomics Research Team, RIKEN Center for Sustainable Resource Science, 1-7-2 Suehirocho, Tsurumi-ku, Yokohama, Kanagawa 230-0045, Japan
| | - Keiji Numata
- Enzyme Research Team, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
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50
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Scalioni LV, Gutiérrez MC, Felisberti MI. Green composites of poly(3-hydroxybutyrate) and curaua fibers: Morphology and physical, thermal, and mechanical properties. J Appl Polym Sci 2016. [DOI: 10.1002/app.44676] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lucas V. Scalioni
- Institute of Chemistry University of Campinas; PO BOX 6154 Campinas SP 13083-970 Brazil
| | - Miguel C. Gutiérrez
- Instituto Politécnico Nacional, CIIDIR-Oaxaca; Hornos 1003, Col. Nochebuena, Santa Cruz Xoxocotlan Oaxaca 71230 Mexico
| | - Maria I. Felisberti
- Institute of Chemistry University of Campinas; PO BOX 6154 Campinas SP 13083-970 Brazil
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