title: Fractionation of oil palm empty fruit bunch by bisulfite pretreatment for the production of bioethanol and high value products.
abstract: In this work, fractionation of empty fruit bunch (EFB) by bisulfite pretreatment was studied for the production of bioethanol and high value products to achieve biorefinery of EFB. EFB was fractionated to solid and liquor components by bisulfite process. The solid components were used for bioethanol production by quasi-simultaneous saccharification and fermentation. The liquor components were then converted to furfural by hydrolysis with sulfuric acid. Preliminary results showed that the concentration of furfural was highest at 18.8g/L with 0.75% sulfuric acid and reaction time of 25min. The conversion of xylose to furfural was 82.5%. Furthermore, we attempted to fractionate the liquor into hemicellulose sugars and lignin by different methods for producing potential chemicals, such as xylose, xylooligosaccharide, and lignosulfonate. Our research showed that the combination of bisulfite pretreatment and resin separation could effectively fractionate EFB components to produce bioethanol and other high value chemicals.
authors.affiliation: State Key Laboratory of Microbial Technology, Shandong University, Jinan City 250100, China.
authors.forename: Liping
authors.initials: L
authors.lastname: Tan
authors.affiliation: State Key Laboratory of Microbial Technology, Shandong University, Jinan City 250100, China.
authors.forename: Meimei
authors.initials: M
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Microbial Technology, Shandong University, Jinan City 250100, China.
authors.forename: Xuezhi
authors.initials: X
authors.lastname: Li
authors.affiliation: State Key Laboratory of Microbial Technology, Shandong University, Jinan City 250100, China.
authors.forename: Hongxing
authors.initials: H
authors.lastname: Li
authors.affiliation: State Key Laboratory of Microbial Technology, Shandong University, Jinan City 250100, China. Electronic address: zhaojian@sdu.edu.cn.
authors.forename: Jian
authors.initials: J
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Microbial Technology, Shandong University, Jinan City 250100, China.
authors.forename: Yinbo
authors.initials: Y
authors.lastname: Qu
authors.affiliation: Malaysian Palm Oil Board, P.O. Box 10620, 50720 Kuala Lumpur, Malaysia.
authors.forename: Yuen May
authors.initials: YM
authors.lastname: Choo
authors.affiliation: Malaysian Palm Oil Board, P.O. Box 10620, 50720 Kuala Lumpur, Malaysia.
authors.forename: Soh Kheang
authors.initials: SK
authors.lastname: Loh
mesh_terms: D000143:Acids / Q000737:chemistry; D056804:Biofuels; D002482:Cellulose; D005591:Chemical Fractionation; D000431:Ethanol / Q000737:chemistry*; D005285:Fermentation; D005427:Flocculation; D005638:Fruit / Q000737:chemistry*; D005662:Furaldehyde / Q000737:chemistry*; D006868:Hydrolysis; D042845:Laccase / Q000737:chemistry; D008031:Lignin; D000073878:Palm Oil; D010938:Plant Oils / Q000737:chemistry; D011134:Polysaccharides / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013447:Sulfites / Q000737:chemistry*; D013464:Sulfuric Acids; D014994:Xylose
chemical_list: D000143:Acids; D056804:Biofuels; D010938:Plant Oils; D011134:Polysaccharides; D013447:Sulfites; D013464:Sulfuric Acids; D000431:Ethanol; D000073878:Palm Oil; C007916:hemicellulose; D002482:Cellulose; D008031:Lignin; D014994:Xylose; D005662:Furaldehyde; D042845:Laccase; C033158:sulfuric acid; C042345:hydrogen sulfite
keywords: Bioethanol; Biorefinery; Bisulfite pretreatment; Empty fruit bunch; Lignosulfonate