Use of Gelidium amansii as a promising resource for bioethanol: A practical approach for continuous dilute-acid hydrolysis and fermentation

Jeong Hoon Park, Ji Yeon Hong, Hyun Chul Jang, Seung Geun Oh, Sang Hyoun Kim, Jeong Jun Yoon, Yong Jin Kim

Research output: Contribution to journalArticle

149 Citations (Scopus)

Abstract

A facile continuous method for dilute-acid hydrolysis of the representative red seaweed species, Gelidium amansii was developed and its hydrolysate was subsequently evaluated for fermentability. In the hydrolysis step, the hydrolysates obtained from a batch reactor and a continuous reactor were systematically compared based on fermentable sugar yield and inhibitor formation. There are many advantages to the continuous hydrolysis process. For example, the low melting point of the agar component in G. amansii facilitates improved raw material fluidity in the continuous reactor. In addition, the hydrolysate obtained from the continuous process delivered a high sugar and low inhibitor concentration, thereby leading to both high yield and high final ethanol titer in the fermentation process.

Original languageEnglish
Pages (from-to)83-88
Number of pages6
JournalBioresource technology
Volume108
DOIs
Publication statusPublished - 2012 Mar

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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