| Record |
Author  |
Palmeiro-Sanchez, T.; Fra-Vazquez, A.; Rey-Martinez, N.; Campos, J.L.; Mosquera-Corral, A. |
| Title |
Transient concentrations of NaCl affect the PHA accumulation in mixed microbial culture |
Type |
|
| Year |
2016 |
Publication |
Journal Of Hazardous Materials |
Abbreviated Journal |
J. Hazard. Mater. |
| Volume |
306 |
Issue |
|
Pages |
332-339 |
| Keywords |
Inhibition; Microbial mixed culture; Polyhydroxyalkanoates; Sodium chloride; Volatile fatty acids |
| Abstract |
The present study explores the feasibility of the accumulation of polyhydroxyalkanoates (PHAs) under the presence of transient concentrations of added sodium chloride, by means of a mixed microbial culture (MMC). This culture was enriched on a mixture of volatile fatty acids (VFAs) containing 0.8 g Na+/L, as NaOH. This MMC presented a maximum PHA accumulation capacity of 53 wt% with 27 Cmol% HV. Accumulation experiments performed with added NaCI at concentrations of 7, 13 and 20 g/L shown that this salt provoked a decrease of the biomass PHA production rate, with an IC50 value close to 7 g NaCl/L. The accumulated PHA was lower than the corresponding value of the assay without the addition of salt. Furthermore, the composition of the biopolymer, in terms of HB:HV ratio, changed from 2.71 to 6.37 Cmol/Cmol, which means a HV decrease between 27 and 14 Cmol%. Summarizing, the PHA accumulation by a MMC non-adapted to saline conditions affected the polymer composition and lead to lower production yields and rates than in absence of added NaCl. (C) 2015 Elsevier B.V. All rights reserved. |
| Address |
[Palmeiro-Sanchez, T.; Fra-Vazquez, A.; Rey-Martinez, N.; Mosquera-Corral, A.] Univ Santiago de Compostela, Inst Technol, Dept Chem Engn, Rua Lope Gomez de Marzoa S-N, E-15705 Santiago De Compostela, Spain, Email: tania.palmeiro@usc.es |
| Corporate Author |
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Thesis |
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| Publisher |
Elsevier Science Bv |
Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0304-3894 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
WOS:000374803400036 |
Approved |
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| Call Number |
UAI @ eduardo.moreno @ |
Serial |
616 |
| Permanent link to this record |
