Efficient bioconversion of sugarcane bagasse into polyhydroxybutyrate (PHB) by Lysinibacillus sp. and its characterization.

Abstract:

:In this study, Lysinibacillus sp. RGS was evaluated to synthesize polyhydroxybutyrate (PHB) from a broad range of pure carbon sources and residual sugars of chemically pretreated sugarcane bagasse (SCB) hydrolysates. Effects of supplementation of nutrients and various experimental variables to enhance PHB accumulation were investigated. Results of optimized parameters were identified as 48 h, 37 °C, pH 7; inoculums concentration (2.5% v/v) and shaking condition (100 rpm). Growth kinetics and bioprocess parameters of Lysinibacillus sp. using SCB hydrolysates with corn steep liquor (2%) accounted for the maximum cell growth (8.65 g/L) and PHA accumulation (61.5%) with PHB titer of (5.31 g/L) under optimal conditions. The produced biopolymer was studied by Fourier Transform Infrared (FTIR) spectroscopy and the results revealed the obtained to be PHB. Thus Lysinibaciluus sp. exhibits high potential in industrial scale manufacture of PHB using SCB as an inexpensive substrate.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Saratale RG,Cho SK,Saratale GD,Ghodake GS,Bharagava RN,Kim DS,Nair S,Shin HS

doi

10.1016/j.biortech.2021.124673

subject

Has Abstract

pub_date

2021-03-01 00:00:00

pages

124673

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(21)00011-0

journal_volume

324

pub_type

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