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Biorefinery production of poly-3-hydroxybutyrate using waste office paper hydrolysate as feedstock for microbial fermentation.

Abstract：

:Waste paper, a major fraction of municipal solid waste, has a potential to serve as renewable feedstock for the biorefineries of fuels, chemicals and materials due to rich in cellulose and abundant at low cost. This study evaluates the possibility of waste office paper (WOP) to serve as a potential feedstock for the biorefinery production of poly (3-hydroxybutyrate). In this study, the WOP was pretreated, enzymatically saccharified and the hydrolysate was used for PHB production. The hydrolysate mainly consists of glucose (22.70g/L) and xylose (1.78g/L) and the corresponding sugar yield was about 816mg/g. Ammonium sulphate and C/N ratio 20 were identified as most favorable for high yield of PHB. The batch fermentation of Cupriavidus necator using the pretreated WOP hydrolysate resulted in cell biomass, PHB production and PHB content of 7.74g/L, 4.45g/L and 57.52%, respectively. The volumetric productivity and yield achieved were 0.061g/L/h and 0.210g/g sugar, respectively. The results suggested that WOP could be a potential alternative feedstock for the biorefinery production of bioplastics.

journal_name

J Biotechnol

journal_title

Journal of biotechnology

authors

Neelamegam A,Al-Battashi H,Al-Bahry S,Nallusamy S

doi

10.1016/j.jbiotec.2017.11.002

subject

Has Abstract

pub_date

2018-01-10 00:00:00

pages

25-30

eissn

0168-1656

issn

1873-4863

pii

S0168-1656(17)31735-2

journal_volume

265

pub_type

杂志文章

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