Converting lignocellulose to bioethanol has to overcome several obstacles. The material is not only mechanically stable, but the phenolic compounds it contains can also inhibit the microorganisms that convert it into ethanol. This paper investigates the content of these compounds in rice straw and husks.
Wu J., Collins S. R. A., Elliston A., Wellner N., Dicks J., Roberts I. N., Waldron K. W., Release of cell wall phenolic esters during hydrothermal pretreatment of rice husk and rice straw, Biotechnology for Biofuels 11:162 (2018)