TY - JOUR
T1 - Macroalgal biomass subcritical hydrolysates for the production of polyhydroxyalkanoate (PHA) by Haloferax mediterranei
AU - Ghosh, Supratim
AU - Gnaim, Rima
AU - Greiserman, Semion
AU - Fadeev, Ludmila
AU - Gozin, Michael
AU - Golberg, Alexander
N1 - Publisher Copyright:
© 2018 Elsevier Ltd
PY - 2019/1
Y1 - 2019/1
N2 - Non-conventional carbon sources, such as macroalgae, are sustainable alternatives for large-scale production of biopolymers. The present study examined macroalgae-derived carbohydrates, as carbon sources for the production of polyhydroxyalkanoates (PHAs) by Haloferax mediterranei. Simulants of the hydrolysates of seven different macroalgal biomasses were prepared and the PHA production was studied. A maximum biomass concentration with maximum PHA content was detected in medium prepared from green macroalgae. The highest cell dry weight and PHA concentrations were 3.8 ± 0.2 g·L −1 and 2.2 ± 0.12 g·L −1 respectively when Haloferax mediterranei was grown in 25% (w/w) of Ulva sp. hydrolysate, at 42 °C temperature and initial pH of 7.2. Poly(3-hydroxy-butyrate-co-3-hydroxyvalerate was the major PHA constituent. The present study demonstrated that Ulva sp. is a promising feedstock for PHA production.
AB - Non-conventional carbon sources, such as macroalgae, are sustainable alternatives for large-scale production of biopolymers. The present study examined macroalgae-derived carbohydrates, as carbon sources for the production of polyhydroxyalkanoates (PHAs) by Haloferax mediterranei. Simulants of the hydrolysates of seven different macroalgal biomasses were prepared and the PHA production was studied. A maximum biomass concentration with maximum PHA content was detected in medium prepared from green macroalgae. The highest cell dry weight and PHA concentrations were 3.8 ± 0.2 g·L −1 and 2.2 ± 0.12 g·L −1 respectively when Haloferax mediterranei was grown in 25% (w/w) of Ulva sp. hydrolysate, at 42 °C temperature and initial pH of 7.2. Poly(3-hydroxy-butyrate-co-3-hydroxyvalerate was the major PHA constituent. The present study demonstrated that Ulva sp. is a promising feedstock for PHA production.
KW - Biopolymer
KW - Haloferax mediterranei
KW - Macroalgal hydrolysate
KW - Polyhydroxyalkanoates
KW - Ulva sp.
UR - http://www.scopus.com/inward/record.url?scp=85053845695&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2018.09.108
DO - 10.1016/j.biortech.2018.09.108
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AN - SCOPUS:85053845695
VL - 271
SP - 166
EP - 173
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -
