Production of bioethanol and biodiesel using instant noodle waste

Xiaoguang Yang, Ja H yun Lee, Hah Y oung Yoo, Hyun Y ong Shin, Laxmi P rasad Thapa, Chulhwan Park, Seung Wook Kim

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Instant noodle manufacturing waste was used as feedstock to convert it into two products, bioethanol and biodiesel. The raw material was pretreated to separate it into two potential feedstocks, starch residues and palm oil, for conversion to bioethanol and biodiesel, respectively. For the production of bioethanol, starch residues were converted into glucose by α-amylase and glucoamylase. To investigate the saccharification process of the pretreated starch residues, the optimal pretreatment conditions were determined. The bioethanol conversion reached 98.5 % of the theoretical maximum by Saccharomyces cerevisiae K35 fermentation after saccharification under optimized pretreatment conditions. Moreover, palm oil, isolated from the instant noodle waste, was converted into valuable biodiesel by use of immobilized lipase (Novozym 435). The effects of four categories of alcohol, oil-to-methanol ratio, reaction time, lipase concentration and water content on the conversion process were investigated. The maximum biodiesel conversion was 95.4 %.

Original languageEnglish
Pages (from-to)1627-1635
Number of pages9
JournalBioprocess and Biosystems Engineering
Volume37
Issue number8
DOIs
Publication statusPublished - 2014 Aug 1

    Fingerprint

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Yang, X., Lee, J. H. Y., Yoo, H. Y. O., Shin, H. Y. O., Thapa, L. P. R., Park, C., & Kim, S. W. (2014). Production of bioethanol and biodiesel using instant noodle waste. Bioprocess and Biosystems Engineering, 37(8), 1627-1635. https://doi.org/10.1007/s00449-014-1135-3