Production of polyhydroxyalkanoates (PHA) from a non‐lignocellulosic component of sugarcane bagasse: fueling a biobased economy

The present study examines the use of residual sugar from sugarcane bagasse for the production of polyhydroxyalkanoates (PHA), a class of biodegradable microbial polymers. To achieve this, 26 bacterial isolates were screened for PHA production. From the strains isolated, ART_MKT2E was found to produ...

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Bibliographic Details
Published in:Biofuels, bioproducts and biorefining bioproducts and biorefining, 2018-07, Vol.12 (4), p.536-541
Main Authors: Tyagi, Priyam, Saxena, Nitesh Kumar, Sharma, Aarti
Format: Article
Language:English
Subjects:
Bagasse
biobased economy
Biodegradability
biodegradable
Biodegradable materials
Biodegradation
biopolymer
Filtrate
Lignocellulose
Microbiological strains
Microorganisms
Organic chemistry
Polyhydroxyalkanoates
Polymers
Saccharides
Salts
Substrates
Sugar
Sugarcane
Yeast
Yeasts
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Summary:The present study examines the use of residual sugar from sugarcane bagasse for the production of polyhydroxyalkanoates (PHA), a class of biodegradable microbial polymers. To achieve this, 26 bacterial isolates were screened for PHA production. From the strains isolated, ART_MKT2E was found to produce PHA and was selected to discover its capability to use a bagasse‐based medium (BGM). To date, the lignocellulosic component of bagasse has been used as a substrate by treating bagasse with acids. This study demonstrates the use of residual sugar from bagasse as a substrate for PHA production. The concentration of bagasse filtrate was found to be optimum at 60%, along with yeast extract and additional salts (pH 7.0 ± 0.5). The maximum PHA production (w/w) was 55%. These results indicate the successful use of non‐lignocellulosic BGM. The remaining lignocellulosic component of bagasse could be fed as a substrate for another production process, promoting a sustainable, biobased economy. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd
ISSN:1932-104X
1932-1031
DOI:10.1002/bbb.1879