Pretreatment with dilute maleic acid enhances the enzymatic digestibility of sugarcane bagasse and oil palm empty fruit bunch fiber

Lucky Risanto; Deddy Triyono Nugroho Adi; Triyani Fajriutami; Hiroshi Teramura; Widya Fatriasari; Euis Hermiati; Prihardi Kahar; Akihiko Kondo; Chiaki Ogino

doi:10.1016/j.biortech.2022.128382

Pretreatment with dilute maleic acid enhances the enzymatic digestibility of sugarcane bagasse and oil palm empty fruit bunch fiber

Bioresour Technol. 2023 Feb:369:128382. doi: 10.1016/j.biortech.2022.128382. Epub 2022 Nov 21.

Authors

Lucky Risanto¹, Deddy Triyono Nugroho Adi¹, Triyani Fajriutami², Hiroshi Teramura³, Widya Fatriasari², Euis Hermiati², Prihardi Kahar³, Akihiko Kondo⁴, Chiaki Ogino⁵

Affiliations

¹ Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Jalan Raya Bogor Km 46, Cibinong, Bogor 16911, Indonesia; Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo 657-8501, Japan.
² Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Jalan Raya Bogor Km 46, Cibinong, Bogor 16911, Indonesia.
³ Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo 657-8501, Japan.
⁴ Graduate School of Science, Technology and Innovation, Kobe University, 1-1 Rokkodai, Nada, Kobe 657-8501, Japan.
⁵ Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo 657-8501, Japan. Electronic address: ochiaki@port.kobe-u.ac.jp.

PMID: 36423754
DOI: 10.1016/j.biortech.2022.128382

Abstract

Lignocellulose is resistant to degradation and requires pretreatment before hydrolytic enzymes can release fermentable sugars. Sulfuric acid has been widely used for biomass pretreatment, but high amount of degradation products usually occurred when using this method. To enhance accessibility to cellulose, we studied the performances of several dilute organic acid pretreatments of sugarcane bagasse and oil palm empty fruit bunch fiber. The results revealed that pretreatment with maleic acid yields the highest xylose and glucose release among other organic acids. The effects of concentration, duration of heating and heating temperature were further studied. Dilute maleic acid 1 % (w/w) pretreatment at 180 °C was the key to its viability as a substitute for sulfuric acid. Moreover, maleic acid did not seem to highly promote the formation of either furfural or 5-HMF in the liquid hydrolysate after pretreatment.

Keywords: Maleic acid; Oil palm empty fruit bunch; Saccharification; Sugarcane bagasse.

MeSH terms

Acids
Carbohydrates
Cellulose* / metabolism
Fruit / metabolism
Hydrolysis
Palm Oil
Saccharum* / metabolism
Sulfuric Acids / pharmacology

Substances

bagasse
Cellulose
maleic acid
Carbohydrates
Acids
Sulfuric Acids
Palm Oil