PHA): Review of Synthesis, Characteristics, Processing and Potential Applications in Packaging
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(PHBV) Co-Polymer: a Critical Review
Rev Environ Sci Biotechnol (2021) 20:479–513 https://doi.org/10.1007/s11157-021-09575-z (0123456789().,-volV)(0123456789().,-volV) REVIEW PAPER Improving biological production of poly(3-hydroxybutyrate- co-3-hydroxyvalerate) (PHBV) co-polymer: a critical review Grazia Policastro . Antonio Panico . Massimiliano Fabbricino Received: 23 January 2021 / Accepted: 2 April 2021 / Published online: 13 April 2021 Ó The Author(s) 2021 Abstract Although poly(3-hydroxybutyrate-co-3- indicates that the addition of 3HV precursors is hydroxyvalerate) (PHBV) is the most promising capable to dramatically enhance the hydroxyvalerate biopolymer for petroleum-based plastics replacement, fraction in the produced biopolymers. On the other the low processes productivity as well as the high sale hand, due to the high costs of the 3HV precursors, the price represent a major barrier for its widespread utilization of wild bacterial species capable to produce usage. The present work examines comparatively the the hydroxyvalerate fraction from unrelated carbon existing methods to enhance the yield of the PHBV co- sources (i.e. no 3HV precursors) also can be consid- polymer biologically produced and/or reduce their ered a valuable strategy for costs reduction. Moreover, costs. The study is addressed to researchers working metabolic engineering techniques can be successfully on the development of new biological production used to promote 3HV precursors-independent biosyn- methods and/or the improvement of those currently thesis pathways and enhance the process productivity. used. At this aim, the authors have considered the The use of mixed cultures or extremophile bacteria analysis of some crucial aspects related to substrates avoids the need of sterile working conditions, and and microorganism’s choice. -
Developing Bioprospecting Strategies for Bioplastics Through the Large-Scale Mining of Microbial Genomes
fmicb-12-697309 July 6, 2021 Time: 18:39 # 1 ORIGINAL RESEARCH published: 12 July 2021 doi: 10.3389/fmicb.2021.697309 Developing Bioprospecting Strategies for Bioplastics Through the Large-Scale Mining of Microbial Genomes Paton Vuong1, Daniel J. Lim2, Daniel V. Murphy1, Michael J. Wise3,4, Andrew S. Whiteley5 and Parwinder Kaur1* 1 UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA, Australia, 2 Department of Physics and Astronomy, Curtin University, Perth, WA, Australia, 3 School of Physics, Mathematics and Computing, The University of Western Australia, Perth, WA, Australia, 4 Marshall Centre for Infectious Disease Research and Training, University of Western Australia, Perth, WA, Australia, 5 Centre for Environment and Life Sciences, CSIRO, Floreat, WA, Australia The accumulation of petroleum-based plastic waste has become a major issue for the environment. A sustainable and biodegradable solution can be found in Polyhydroxyalkanoates (PHAs), a microbially produced biopolymer. An analysis of the global phylogenetic and ecological distribution of potential PHA producing bacteria and Edited by: archaea was carried out by mining a global genome repository for PHA synthase (PhaC), Obulisamy Parthiba Karthikeyan, University of Houston, United States a key enzyme involved in PHA biosynthesis. Bacteria from the phylum Actinobacteria Reviewed by: were found to contain the PhaC Class II genotype which produces medium-chain Rajesh K. Sani, length PHAs, a physiology until now only found within a few Pseudomonas species. South Dakota School of Mines Further, several PhaC genotypes were discovered within Thaumarchaeota, an archaeal and Technology, United States Vijay Kumar, phylum with poly-extremophiles and the ability to efficiently use CO2 as a carbon Institute of Himalayan Bioresource source, a significant ecological group which have thus far been little studied for PHA Technology (CSIR), India production. -
Extrusion Foaming of Bioplastics for Lightweight Structure in Food Packaging
EXTRUSION FOAMING OF BIOPLASTICS FOR LIGHTWEIGHT STRUCTURE IN FOOD PACKAGING A thesis submitted for the degree of Doctor of Philosophy by Sitthi Duangphet School of Engineering and Design Brunel University December 2012 i Abstract This thesis reports the systematic approaches to overcome the key drawbacks of the pure PHBV, namely low crystallisation rate, tensile strength, ductility, melt viscosity, thermal stability and high materials cost. The physical, mechanical, thermal, and rheological properties of the pure PHBV were studied systematically first to lay a solid foundation for formulation development. The influence of blending with other biopolymers, inclusion of filler, and chain extender additives in terms of mechanical properties, rheology, thermal decomposition and crystallization kinetics were then followed. Creating lightweight structures by foaming is considered to be one of the effective ways to reduce material consumption, hence the reduction of density and morphology of PHBV-based foams using extrusion foaming technique were studied comprehensively in terms of extrusion conditions (temperature profiles, screw speed and material feeding rate) and the blowing agent content. The material cost reduction was achieved by adding low-cost filler (e.g. CaCO3) and reduction of density by foaming. The thermal instability was enhanced by incorporation of chain extender (e.g. Joncryl) and blending with a high thermal stability biopolymer (e.g. PBAT). The polymer blend also improved the ductility. Adding nucleation agent enhanced the crystallization rate to reduce stickiness of extruded sheet. The final formulation (PHBV/PBAT/CaCO3 composite) was successfully extruded into high quality sheet and thermoformed to produce prototype trays in an industrial scale trial. The effect of the extrusion conditions (temperature profiles, screw speed and material feeding rate) and the blowing agent content are correlated to the density reduction of the foams. -
Development of Polylactic Acid-Polyhydroxybutyrate Blends for Packaging Applications
Development of Polylactic Acid-Polyhydroxybutyrate Blends for Packaging Applications A thesis submitted in fulfilment of the requirements for the degree of Master of Engineering DEHAO KONG B. Eng. School of Engineering College of Science, Engineering and Health RMIT University December 2017 1 DECLARATION I certify that except where due acknowledgement has been made, the work is that of the author alone; the work has not been submitted previously, in whole or in part, to qualify for any other academic award; the content of the thesis is the result of work which has been carried out since the official commencement date of the approved research program; any editorial work, paid or unpaid, carried out by a third party is acknowledged; and, ethics procedures and guidelines have been followed. DEHAO KONG December 21, 2017 2 ACKNOWLEDGEMENTS I sincerely thank my supervisors, Associate Prof. Nhol Kao and Prof. Sati N. Bhattacharya for their supervision and for the opportunity to start and achieve my goal of obtaining a Master. It would not have been possible without your guidance, patience, understanding, and hard work throughout the process. I appreciate their immense knowledge and expertise and their assistance at all levels of the research project. I would also like to thank the staff members of Rheology and Materials Processing Group, especially Mike Allan, Dr. Muthu Pannirselvam and Cameron Crombie for their help in operational training initially and continuous support during the use of instruments throughout the course of the project. I would also like to acknowledge the support and encouragement of my colleagues in the Chemical and Environmental Engineering, School of Engineering as well. -
Aerobic Biodegradation of Polyhydroxybutyrate in Compost
ENVIRONMENTAL ENGINEERING SCIENCE Volume 28, Number 7, 2011 ª Mary Ann Liebert, Inc. DOI: 10.1089/ees.2010.0208 Aerobic Biodegradation of Polyhydroxybutyrate in Compost Maria T. Gutierrez-Wing,1,2,* Benjamin E. Stevens,3 Chandra S. Theegala,4 Ioan I. Negulescu,5,6 and Kelly A. Rusch1 Departments of 1Civil and Environmental Engineering, 4Biological and Agricultural Engineering, and 5Chemistry; 2Louisiana Sea Grant College Program 116 Elab; 6School of Human Ecology; Louisiana State University, Baton Rouge, Louisiana. 3Sage Environmental Consulting, Baton Rouge, Louisiana. Received: July 6, 2010 Accepted in revised form: February 3, 2011 Abstract Aerobic biodegradation of polyhydroxybutyrate (PHB) was investigated. Mass loss experiments were performed to determine degradation kinetics. Tributyl citrate was blended with some test samples to determine the impact of a natural plasticizer on biodegradation. Effects of biodegradation in the physical, chemical, thermal, and mechanical properties of the materials tested were determined. Plates of different thicknesses (0.24, 1.2, 3.5, and 5.0 mm) were degraded to determine the effect of initial mass:initial surface area ratio on degradation rates. The mass:initial surface area is proportional to the plate thickness. PHB biodegradation rates obtained are dependent on the mass:surface area ratio. Temperature affects the relation of degradation rate to initial mass:initial surface area. PHB in plates up to a thickness of 3.5 mm can degrade completely in compost. Plates with an initial mass:initial surface area ratio of < 67 will degrade in < 4 months. Maximum degradation rates were obtained in plates 3.5 mm thick (1.57 mg cm - 2 d - 1) and the minimum in plates 0.24 mm thick (0.16 mg cm - 2 d - 1). -
Characterization and Degradation of Polyhydroxyalkanoates (PHA), Polylactides (PLA) and PHA-PLA Blends
Characterization and Degradation of Polyhydroxyalkanoates (PHA), Polylactides (PLA) and PHA-PLA Blends Rafeya Sohail Microbiology and Molecular Genetics, University of the Punjab, Lahore Nazia Jamil ( [email protected] ) Microbiology and Molecular Genetics, University of the Punjab Lahore Research Keywords: Degradation, FT-IR, Mixed Culture, PHA-PLA blends, Polyhydroxyalkanoates, Polylactides, SEM, Soil Posted Date: December 1st, 2020 DOI: https://doi.org/10.21203/rs.3.rs-113670/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License 1 Characterization and Degradation of Polyhydroxyalkanoates 2 (PHA), Polylactides (PLA) and PHA-PLA blends 3 Rafeya Sohail1, Nazia Jamil1 4 1Department of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam 5 Campus, Lahore 54590, Punjab, Pakistan 6 Correspondence: 7 Nazia Jamil 8 [email protected] 9 1 10 Abstract 11 Biodegradable biopolymers such as polyhydroxyalkanoates (PHA) and polylactide (PLA) have 12 wide range of applications in almost all sectors. Degradation of these polymers, however 13 efficient, still creates a paradox with green chemistry principles. Blending of these polymers can 14 potentially decrease plastic pollution due to their increased biodegradability. During this study, 15 PHAwas produced using bacterial strains DL3; Bacillus subtilis (MT043898), PWA; Bacillus 16 subtilis (MH142143), PWC; Pseudomonas aeruginosa (MH142144), PWF; Bacillus tequilensis 17 (MH142145) and PWG; Bacillus safensis (MH142146). Corn-based PLA was produced 18 chemically and physically blendedwith PHA (PHA-PLA blends). During molecular studies, 19 PHA, PLA and PHA-PLA blendswere characterized via FT-IR analysis, SEM, and light 20 microscopy indicating successful blending of PHA-PLA samples. -
(Phb) Production Across Scale: Life Cycle Assessment, Pure Culture Experimentation, and Pathway/Genome Database Development
UNDERSTANDING METHANOTROPHIC POLYHYDROXYBUTYRATE (PHB) PRODUCTION ACROSS SCALE: LIFE CYCLE ASSESSMENT, PURE CULTURE EXPERIMENTATION, AND PATHWAY/GENOME DATABASE DEVELOPMENT A DISSERTATION SUBMITTED TO THE DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING AND THE COMMITTEE ON GRADUATE STUDIES OF STANFORD UNIVERSITY IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY Katherine Helen Rostkowski June 2012 © 2012 by Katherine Helen Rostkowski. All Rights Reserved. Re-distributed by Stanford University under license with the author. This work is licensed under a Creative Commons Attribution- Noncommercial 3.0 United States License. http://creativecommons.org/licenses/by-nc/3.0/us/ This dissertation is online at: http://purl.stanford.edu/mc120yq3299 ii I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Craig Criddle, Primary Adviser I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Michael Lepech I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Perry McCarty I certify that I have read this dissertation and that, in my opinion, it is fully adequate in scope and quality as a dissertation for the degree of Doctor of Philosophy. Peter Karp Approved for the Stanford University Committee on Graduate Studies. Patricia J. Gumport, Vice Provost Graduate Education This signature page was generated electronically upon submission of this dissertation in electronic format. -
Bio-Based and Biodegradable Plastics – Facts and Figures Focus on Food Packaging in the Netherlands
Bio-based and biodegradable plastics – Facts and Figures Focus on food packaging in the Netherlands Martien van den Oever, Karin Molenveld, Maarten van der Zee, Harriëtte Bos Rapport nr. 1722 Bio-based and biodegradable plastics - Facts and Figures Focus on food packaging in the Netherlands Martien van den Oever, Karin Molenveld, Maarten van der Zee, Harriëtte Bos Report 1722 Colophon Title Bio-based and biodegradable plastics - Facts and Figures Author(s) Martien van den Oever, Karin Molenveld, Maarten van der Zee, Harriëtte Bos Number Wageningen Food & Biobased Research number 1722 ISBN-number 978-94-6343-121-7 DOI http://dx.doi.org/10.18174/408350 Date of publication April 2017 Version Concept Confidentiality No/yes+date of expiration OPD code OPD code Approved by Christiaan Bolck Review Intern Name reviewer Christaan Bolck Sponsor RVO.nl + Dutch Ministry of Economic Affairs Client RVO.nl + Dutch Ministry of Economic Affairs Wageningen Food & Biobased Research P.O. Box 17 NL-6700 AA Wageningen Tel: +31 (0)317 480 084 E-mail: [email protected] Internet: www.wur.nl/foodandbiobased-research © Wageningen Food & Biobased Research, institute within the legal entity Stichting Wageningen Research All rights reserved. No part of this publication may be reproduced, stored in a retrieval system of any nature, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior permission of the publisher. The publisher does not accept any liability for inaccuracies in this report. 2 © Wageningen Food & Biobased Research, institute within the legal entity Stichting Wageningen Research Preface For over 25 years Wageningen Food & Biobased Research (WFBR) is involved in research and development of bio-based materials and products. -
Biodegradation of Different Formulations of Polyhydroxybutyrate Films in Soil
Altaee et al. SpringerPlus (2016) 5:762 DOI 10.1186/s40064-016-2480-2 RESEARCH Open Access Biodegradation of different formulations of polyhydroxybutyrate films in soil Nadia Altaee1,2, Gamal A. El‑Hiti3* , Ayad Fahdil1, Kumar Sudesh4 and Emad Yousif5* *Correspondence: gelhiti@ ksu.edu.sa; emadayousif@ Abstract gmail.com Background: Petroleum polymers contribute to non-degradable waste materials and 3 Cornea Research Chair, Department of Optometry, it would therefore be desirable to produce ecofriendly degradable materials. Biodeg‑ College of Applied Medical radation of polyhydroxybutyrate (PHB) in the presence of oligomer hydrolase and PHB Sciences, King Saud depolymerase gave 3-hydroxybutyric acid which could be oxidized to acetyl acetate. University, P.O. Box 10219, Riyadh 11433, Saudi Arabia Several bacteria and fungi can degrade PHB in the soil. 5 Department of Chemistry, Results: Biodegradation of PHB showed a significant decrease in the molecular College of Science, Al-Nahrain University, weight (Mw), number-average molecular weight (Mn) and the dispersity (Mw/Mn) for Baghdad 64021, Iraq all the film formulations. Nanofibers of PHB and its composites showed faster degrada‑ Full list of author information tion compared to other films and displayed complete degradation after 3 weeks. The is available at the end of the article SEM micrographs showed various surface morphology changes including alterations in appearance of pores, cavity, grooves, incisions, slots and pointers. Such changes were due to the growth of microorganisms that secreted PHB depolymerase enzyme which lead to the biopolymer films degradation. However, PHB nanofibers and its composites films in the presence of TiO2 demonstrated more surface changes with rupture of most nanofibers in which there was a drop in fibres diameter. -
Rheology of Polyhydroxyalkanoates: a Study of a Class of "Green" Polymers
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Supervised Undergraduate Student Research Chancellor’s Honors Program Projects and Creative Work Spring 5-2005 Rheology of Polyhydroxyalkanoates: A Study of a Class of "Green" Polymers Kari Elizabeth Tjader University of Tennessee - Knoxville Follow this and additional works at: https://trace.tennessee.edu/utk_chanhonoproj Recommended Citation Tjader, Kari Elizabeth, "Rheology of Polyhydroxyalkanoates: A Study of a Class of "Green" Polymers" (2005). Chancellor’s Honors Program Projects. https://trace.tennessee.edu/utk_chanhonoproj/922 This is brought to you for free and open access by the Supervised Undergraduate Student Research and Creative Work at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Chancellor’s Honors Program Projects by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. Rheology of Polyhydroxyalkanoates: A Study of a Class of "Green" Polymers Senior Honors Project Kari Elizabeth Tjader Chemical Engineering Spring 2005 Faculty Mentor: Dr. Simioan Petrovan Department of Chemical Engineering This research was accomplished in conjunction with chemical engineering 410, a senior special-topics laboratory class, with partner Mary Airhart. ii Table of Contents List of Figures .............................................................................................................. .iii Summary .............................................................................................. -
Polyhydroxyalkanoate Biosynthesis by Oxalotrophic Bacteria from High Andean Soil
Univ. Sci. 23 (1): 35-59, 2018. doi: 10.11144/Javeriana.SC23-1.pbb0 Bogotá ORIGINAL ARTICLE Polyhydroxyalkanoate biosynthesis by oxalotrophic bacteria from high Andean soil Roger David Castillo Arteaga1, *, Edith Mariela Burbano Rosero2, Iván Darío Otero Ramírez3, Juan Camilo Roncallo1, Sandra Patricia Hidalgo Bonilla4 and Pablo Fernández Izquierdo2 Edited by Juan Carlos Salcedo-Reyes Abstract ([email protected]) 1. Universidade de São Paulo, Oxalate is a highly oxidized organic acid anion used as a carbon and energy Instituto de Ciências Biomédicas, Laboratório de Bioprodutos, source by oxalotrophic bacteria. Oxalogenic plants convert atmospheric CO2 Av. Prof. Lineu Prestes, 1374, São Paulo, into oxalic acid and oxalic salts. Oxalate-salt formation acts as a carbon sink in SP, Brasil, CEP 05508-900. terrestrial ecosystems via the oxalate-carbonate pathway (OCP). Oxalotrophic 2. Universidad de Nariño, bacteria might be implicated in other carbon-storage processes, including Departamento de Biología. the synthesis of polyhydroxyalkanoates (PHAs). More recently, a variety Grupo de Investigación de Biotecnología of bacteria from the Andean region of Colombia in Nariño have been Microbiana. Torobajo, Cl 18 - Cra 50. reported for their PHA-producing abilities. These species can degrade oxalate San Juan de Pasto, Colombia. and participate in the oxalate-carbonate pathway. The aim of this study 3. Universidad del Cauca, was to isolate and characterize oxalotrophic bacteria with the capacity to Facultad de Ciencias Agrarias, Grupo de Investigación en accumulate PHA biopolymers. Plants of the genus Oxalis were collected Aprovechamiento de Subproductos and bacteria were isolated from the soil adhering to the roots. The isolated Agroindustriales, Cl 5 No. -
United States Patent (19) 11 Patent Number: 5,753,724 Edgington Et Al
USOO5753724A United States Patent (19) 11 Patent Number: 5,753,724 Edgington et al. 45 Date of Patent: May 19, 1998 54) BIODEGRADABLE/COMPOSTABLE HOT 5,180.765 l/1993 Sinclair ................................... 524/306 MELTADHESIVES COMPRISING 526,050 6/1993 Sinclair ........ ... 524/30 5,252,642 10/1993 Sinclair et al. .. ... 524/320 POLYESTER OF LACTIC ACD 5,252,646 10/1993 Iovine et al. ............................ 524/272 5,32,850 5/1994 Iovine et al. ... 5242 75) Inventors: Garry J. Edgington, White Bear Lake; 5,424,346 6/1995 Sinclair ............ 524/320 Christopher M. Ryan. Dayton, both of 5,444, 13 8/1995 Sinclair et al. ... ... 524/317 Minn. 5,502,158 3/1996 Sinclair et al. ......................... 524/315 73 Assignee: H. B. Fuller Licensing & Financing, Primary Examiner-Peter A. Szekely Inc., St. Paul, Minn. Attorney, Agent, or Firm-Nancy Quan; Carolyn Fischer 57 ABSTRACT 21 Appl. No.: 786,430 A hot melt adhesive composition can be made using a 22 Filed: Jan. 21, 1997 polyester derived from 2-propanoic acid (lactic acid). A thermoplastic resin grade polyester can be formulated into a Related U.S. Application Data functional adhesive using adhesive components. A lower 62 Division of Ser. No. 632,918, Apr. 16, 1996, abandoned, molecular weight material can be used as a tackifying resin which is a continuation of Ser. No. 136,670, Oct. 15, 1993, with a biodegradable/compostable resin in a formulated hot abandoned. melt adhesive. The adhesive material can be made pressure sensitive and can be made entirely by a degradable by (51) Int. Cl. ......................... C08L 67/04: CO8G 63/08; combining the polyester polymer with other biodegradable/ CO8F 120/26 compostable ingredients.