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Title 

Sequential acid-/alkali-pretreatment of empty palm fruit bunch fiber

 

팜 열매 껍질의 순차적 산/알칼리 처리

Authors 

Seonghun KimJang Min ParkJeong-Woo SeoChul Ho Kim

Publisher 

Elsevier

Issue Date 

2012

Citation 

Bioresource Technology, vol. 109, no. 0, pp. 229-233

Keywords 

DelignificationDiluted acid/alkaline pretreatmentEmpty palm fruit bunch fiberEnzyme hydrolysisSequential pretreatment

Abstract 

Pretreatment processes are key technologies for generating fermentable sugars based on lignocellulosic biomass. In this study, we developed a novel method for empty palm fruit bunch fiber (EPFBF) using sequential pretreatment with dilute acid and then alkali. Dilute sulfuric acid was used in the first step, which removed 90% of the hemicellulose and 32% of the lignin, but left most of the cellulose under the optimum pretreatment condition. Sodium hydroxide was then applied in the second step, which extracted lignin effectively with a 70% delignification yield, partially disrupting the ordered fibrils of the EPFBF and thus enhancing the enzyme digestibility of the cellulose. The sequentially pretreated biomass consisted of 82% cellulose, less than 1% hemicellulose, and 30% lignin content afterward. The pretreated biomasses morphologically revealed rough, porous, and irregularly ordered surfaces for enhancing enzyme digestibility. These results indicate that the sequentially acid/alkali-pretreated EPFBF could be broadly useful as a novel biomass.

ISSN 

0960-8524

Link 

http://dx.doi.org/10.1016/j.biortech.2012.01.036

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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