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- Title
An Integrated Process for the Xylitol and Ethanol Production from Oil Palm Empty Fruit Bunch (OPEFB) Using Debaryomyces hansenii and Saccharomyces cerevisiae.
- Authors
Mardawati, Efri; Febrianti, Emilda Ayu; Fitriana, Hana Nur; Yuliana, Tri; Putriana, Norisca Aliza; Suhartini, Sri; Kasbawati
- Abstract
Oil palm empty fruit bunch (OPEFB) is the largest biomass waste from the palm oil industry. The OPEFB has a lignocellulose content of 34.77% cellulose, 22.55% hemicellulose, and 10.58% lignin. Therefore, this material's hemicellulose and cellulose content have a high potential for xylitol and ethanol production, respectively. This study investigated the integrated microaerobic xylitol production by Debaryomyces hansenii and anaerobic ethanol semi simultaneous saccharification and fermentation (semi-SSF) by Saccharomyces cerevisiae using the same OPEFB material. A maximum xylitol concentration of 2.86 g/L was obtained with a yield of 0.297 g/gxylose. After 96 h of anaerobic fermentation, the maximum ethanol concentration was 6.48 g/L, corresponding to 71.38% of the theoretical ethanol yield. Significant morphological changes occurred in the OPEFB after hydrolysis and xylitol and ethanol fermentation were shown from SEM analysis.
- Subjects
XYLITOL; PALM oil industry; SACCHAROMYCES cerevisiae; ETHANOL; HEMICELLULOSE; LIGNOCELLULOSE; FRUIT
- Publication
Microorganisms, 2022, Vol 10, Issue 10, p2036
- ISSN
2076-2607
- Publication type
Article
- DOI
10.3390/microorganisms10102036