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Evaluation of a transgenic poplar as a potential biomass crop for biofuel production

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A transgenic poplar, in which the RabG3bCA gene from Arabidopsis was overexpressed, was analyzed for its biomass composition and enzymatic digestibility after chemical pretreatment. In comparison with a wild-type poplar (WT), the transgenic poplar (OX8) showed 9.8% higher glucan content. The levels of other biomass components did not differ greatly between WT and OX8. When WT and OX8 samples were pretreated by sulfuric acid (1%, w/v at 190 °C), sodium hydroxide (1%, w/v at 190 °C), or ammonia (14%, w/w at 80 °C), the washed pretreated solids of OX8 exhibited a higher enzymatic digestibility than those of WT in each chemical pretreatment. The sodium hydroxide pretreatment was the most effective among the three pretreatment processes, showing 58.7% and 69.4% of theoretical glucose yield from the saccharification of pretreated OX8 and WT, respectively. The transgenic poplar, growing faster and taller, was found to contain more glucan and have a higher enzymatic digestibility than WT.

    Original languageEnglish
    Pages (from-to)639-641
    Number of pages3
    JournalBioresource technology
    Volume129
    DOIs
    Publication statusPublished - 2013 Feb

    Bibliographical note

    Funding Information:
    This work was supported by grants from the Advanced Biomass R&D Center of Korea ( 2011-0031353 ) and the Pioneer Research Center Program (2011-0002327) funded by the Korean Government (MEST) . Grant support was also received from the Next-Generation BioGreen 21 Program ( PJ0080522011 and PJ008103032011 ) through the Rural Development Administration. Facility support at Korea University Food Safety Hall for the Institute of Biomedical Science and Food Safety is also acknowledged.

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 7 - Affordable and Clean Energy
      SDG 7 Affordable and Clean Energy

    Keywords

    • Biofuel
    • Biomass
    • Enzymatic digestibility
    • Pretreatment
    • Transgenic poplar

    ASJC Scopus subject areas

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

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