MÉTODOS DE EXTRAÇÃO DE POLI-HIDROXIALCANOATOS A PARTIR DE BIOMASSA BACTERIANA
Polyhydroxyalkanoates (PHAs) are biodegradable and biocompatible polyesters intracellularly accumulated by many bacteria as an energy reserve material and carbon source. These biopolymers may be extracted from cells after their production phase, and the extraction process involves various individual...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2015-11-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422015000901207&lng=en&tlng=en |
| _version_ | 1819086045792174080 |
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| author | Luci K. M. Quines Mélodi Schmidt Kellen Zanfonato Willibaldo Schmidell Gláucia M. F. Aragão |
| author_facet | Luci K. M. Quines Mélodi Schmidt Kellen Zanfonato Willibaldo Schmidell Gláucia M. F. Aragão |
| author_sort | Luci K. M. Quines |
| collection | DOAJ |
| description | Polyhydroxyalkanoates (PHAs) are biodegradable and biocompatible polyesters intracellularly accumulated by many bacteria as an energy reserve material and carbon source. These biopolymers may be extracted from cells after their production phase, and the extraction process involves various individual operations to ensure adequate removal of the biopolymer from the cells. During this process, the following aspects should be considered: reduction of product losses during different stages of the process to obtain a highly pure product, preservation of physical and thermal characteristics, and use of low toxicity chemicals to achieve sustainable production and avoid harming the environment. The impact of the costs of PHA extraction on the total cost of the production process may account for over 50% of the end-value of the product. Within this context, several methods of PHA extraction have been reported in the literature. These methods include the use of solvents, chemical digestion, enzymatic digestion, mechanical extraction with high-pressure homogenization and ultrasound, extraction using supercritical fluids, or a combination of these methods. The present review of the literature shows strategies for extraction processes of PHAs produced by bacteria involving cell destabilization and/or breakage, recovery, and purification of the biopolymer. |
| first_indexed | 2024-12-21T21:14:01Z |
| format | Article |
| id | doaj.art-be25e11be78f4862890f90bb6d403258 |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-12-21T21:14:01Z |
| publishDate | 2015-11-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-be25e11be78f4862890f90bb6d4032582022-12-21T18:50:03ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642015-11-013891207121810.5935/0100-4042.20150129S0100-40422015000901207MÉTODOS DE EXTRAÇÃO DE POLI-HIDROXIALCANOATOS A PARTIR DE BIOMASSA BACTERIANALuci K. M. QuinesMélodi SchmidtKellen ZanfonatoWillibaldo SchmidellGláucia M. F. AragãoPolyhydroxyalkanoates (PHAs) are biodegradable and biocompatible polyesters intracellularly accumulated by many bacteria as an energy reserve material and carbon source. These biopolymers may be extracted from cells after their production phase, and the extraction process involves various individual operations to ensure adequate removal of the biopolymer from the cells. During this process, the following aspects should be considered: reduction of product losses during different stages of the process to obtain a highly pure product, preservation of physical and thermal characteristics, and use of low toxicity chemicals to achieve sustainable production and avoid harming the environment. The impact of the costs of PHA extraction on the total cost of the production process may account for over 50% of the end-value of the product. Within this context, several methods of PHA extraction have been reported in the literature. These methods include the use of solvents, chemical digestion, enzymatic digestion, mechanical extraction with high-pressure homogenization and ultrasound, extraction using supercritical fluids, or a combination of these methods. The present review of the literature shows strategies for extraction processes of PHAs produced by bacteria involving cell destabilization and/or breakage, recovery, and purification of the biopolymer.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422015000901207&lng=en&tlng=enextractionpolyhydroxyalkanoatesrecovery |
| spellingShingle | Luci K. M. Quines Mélodi Schmidt Kellen Zanfonato Willibaldo Schmidell Gláucia M. F. Aragão MÉTODOS DE EXTRAÇÃO DE POLI-HIDROXIALCANOATOS A PARTIR DE BIOMASSA BACTERIANA Química Nova extraction polyhydroxyalkanoates recovery |
| title | MÉTODOS DE EXTRAÇÃO DE POLI-HIDROXIALCANOATOS A PARTIR DE BIOMASSA BACTERIANA |
| title_full | MÉTODOS DE EXTRAÇÃO DE POLI-HIDROXIALCANOATOS A PARTIR DE BIOMASSA BACTERIANA |
| title_fullStr | MÉTODOS DE EXTRAÇÃO DE POLI-HIDROXIALCANOATOS A PARTIR DE BIOMASSA BACTERIANA |
| title_full_unstemmed | MÉTODOS DE EXTRAÇÃO DE POLI-HIDROXIALCANOATOS A PARTIR DE BIOMASSA BACTERIANA |
| title_short | MÉTODOS DE EXTRAÇÃO DE POLI-HIDROXIALCANOATOS A PARTIR DE BIOMASSA BACTERIANA |
| title_sort | metodos de extracao de poli hidroxialcanoatos a partir de biomassa bacteriana |
| topic | extraction polyhydroxyalkanoates recovery |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422015000901207&lng=en&tlng=en |
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