Bioconversion of barley straw lignin into biodiesel using Rhodococcus sp. YHY01

Shashi Kant Bhatia, Ranjit Gurav, Tae Rim Choi, Yeong Hoon Han, Ye Lim Park, Jun Young Park, Hye Rim Jung, Soo Yeon Yang, Hun Suk Song, Sang Hyoun Kim, Kwon Young Choi, Yung Hun Yang

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Rhodococcus sp. YHY01 was studied to utilize various lignin derived aromatic compounds. It was able to utilize p-coumaric acid, cresol, and 2,6 dimethoxyphenol and resulted in biomass production i.e. 0.38 g dcw/L, 0.25 g dcw/L and 0.1 g dcw/L, and lipid accumulation i.e. 49%, 40%, 30%, respectively. The half maximal inhibitory concentration (IC50) value for p-coumaric acid (13.4 mM), cresol (7.9 mM), and 2,6 dimethoxyphenol (3.4 mM) was analyzed. Dimethyl sulfoxide (DMSO) solubilized barley straw lignin fraction was used as a carbon source for Rhodococcus sp. YHY01 and resulted in 0.130 g dcw/L with 39% w/w lipid accumulation. Major fatty acids were palmitic acid (C16:0) 51.87%, palmitoleic acid (C16:l) 14.90%, and oleic acid (C18:1) 13.76%, respectively. Properties of biodiesel produced from barley straw lignin were as iodine value (IV) 27.25, cetane number (CN) 65.57, cold filter plugging point (CFPP) 14.36, viscosity (υ) 3.81, and density (ρ) 0.86.

Original languageEnglish
Article number121704
JournalBioresource technology
Publication statusPublished - 2019 Oct

All Science Journal Classification (ASJC) codes

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

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    Bhatia, S. K., Gurav, R., Choi, T. R., Han, Y. H., Park, Y. L., Park, J. Y., Jung, H. R., Yang, S. Y., Song, H. S., Kim, S. H., Choi, K. Y., & Yang, Y. H. (2019). Bioconversion of barley straw lignin into biodiesel using Rhodococcus sp. YHY01. Bioresource technology, 289, [121704].