Simultaneous pretreatment and saccharification: Green technology for enhanced sugar yields from biomass using a fungal consortium

Saurabh Sudha Dhiman, Jung Rim Haw, Dayanand Kalyani, Vipin C. Kalia, Yun Chan Kang, Jung Kul Lee

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)

Abstract

Two different biomasses were subjected to simultaneous pretreatment and saccharification (SPS) using a cocktail of hydrolytic and oxidizing enzymes. Application of a novel laccase as a detoxifying agent caused the removal of 49.8% and 32.6% of phenolic contents from the soaked rice straw and willow, respectively. Hydrolysis of soaked substrates using a newly developed fungal consortium resulted in saccharification yield of up to 74.2% and 63.6% for rice straw and willow, respectively. A high saccharification yield was obtained with soaked rice straw and willow without using any hazardous chemicals. The efficiency of each step related to SPS was confirmed by atomic force microscopy. The suitability of the developed SPS process was further confirmed by converting the hydrolysate from the process into bioethanol with 72.4% sugar conversion efficiency. To the best of our knowledge, this is the first report on the development of a less tedious, single-pot, and eco-friendly SPS methodology.

Original languageEnglish
Pages (from-to)50-57
Number of pages8
JournalBioresource technology
Volume179
DOIs
Publication statusPublished - 2015 Mar 1

Bibliographical note

Funding Information:
This research was supported a Grant from the Intelligent Synthetic Biology Center of Global Frontier Project (2011-0031955) funded by the Ministry of Science, ICT and Future Planning, Republic of Korea . This work was supported by 2013 KU Brain Pool fellowship of Konkuk University .

Funding Information:
This work was supported by the Energy Efficiency & Resources Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea ( 201320200000420 ).

Publisher Copyright:
© 2014 Elsevier Ltd.

Keywords

  • Ethanol
  • Fungal consortia
  • Pretreatment
  • Reducing sugars
  • Saccharification

ASJC Scopus subject areas

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

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