Organic Acid Pretreatment of Oil Palm Trunk Biomass for Succinic Acid Production
- PDF / 1,575,143 Bytes
- 11 Pages / 595.276 x 790.866 pts Page_size
- 104 Downloads / 286 Views
ORIGINAL PAPER
Organic Acid Pretreatment of Oil Palm Trunk Biomass for Succinic Acid Production Nurul Adela Bukhari1,2 · Jamaliah Md Jahim2,3 · Soh Kheang Loh1 · Abu Bakar Nasrin1 · Shuhaida Harun2,3 · Peer Mohamed Abdul2,3 Received: 3 July 2019 / Accepted: 3 February 2020 © Springer Nature B.V. 2020
Abstract Purpose Oil palm trunk (OPT) is a promising lignocellulosic biomass for sugar production due to its abundant availability, low-cost and high carbohydrate content. Organic acids have been suggested as an alternative to sulphuric acid pretreatment due to their lower hazardous properties. Methods Various organic acids (citric acid, formic acid and oxalic acid) of different concentration (0.5–5.0%) were assessed to find a suitable catalyst in hydrolysing oil palm trunk biomass (OPTB) for different reaction time (15–120 min) at a fixed temperature (120 °C), and expressed in a combined severity factor (CSF) to allow for xylose selectivity and their performance comparison. Results Of various organic acids used, oxalic acid was shown to be the most effective in solubilizing hemicellulose of OPTB, recovering a maximum xylose of ~ 61.2% at a CSF of 0.97. Nevertheless, citric acid-derived hydrolysate was more potent for succinic acid fermentation by Actinobacillus succinogenes 130Z, showing optimal succinic acid titer of 10.62 g/L and yield of 0.47 g/g, which were two-fold higher than those without acid pretreatment. Conclusion The capability of A. succinogenes 130Z in utilising both glucose and xylose of OPTB hydrolysates supports development of bio-based succinic acid using oil palm biomass. Graphic Abstract
Keywords Dilute acid pretreatment · Oil palm biomass · Hemicellulose · Oxalic acid · Actinobacillus succinogenes Extended author information available on the last page of the article
13
Vol.:(0123456789)
Statement of Novelty • Oxalic acid is a promising pretreatment agent in pro-
ducing high amount of xylose from oil palm trunk biomass (OPTB) • Higher yield and productivity of succinic acid were achieved using citric acid compared to conventional pretreatment via sulphuric acid • Actinobacillus succinogenes 130Z was able to simultaneously utilise glucose (92.2%) and xylose (96.3%) in OPTB hydrolysate as carbon source to produce succinic acid • Potential use of OPTB hydrolysate to realize bio-based succinic acid development provides considerable economic and environmental benefits
Introduction The mass production of bio-based chemicals requires huge feedstock input. One such lignocellulosic feedstock i.e. oil palm trunk biomass (OPTB) which is renewable, abundant and low-cost can be a good candidate for bioconversion of industrially important chemicals such as succinic acid. Succinic acid or its derivatives can be used directly as a source of food additives, pharmaceuticals, surfactants, detergents, solvents, biodegradable plastics and fuels [1]. An approximate 21.64 million tonnes (dry weight) of OPTB was generated from 290, 500 ha of oil palm replanted areas out of a total planted area of 5.81 mi
Data Loading...
