@article{34878,
  keywords = {Biofuels, ionic liquid pretreatment, technoeconomic analysis, forage sorghum, Sorghum bicolor, Brown-midrib (bmr), photoperiod sensitive (PS)},
  author = {Minliang Yang and Jeff Dahlberg and Nawa Raj Baral and Daniel Putnam and Corinne D Scown},
  title = {Identifying Forage Sorghum Ideotypes for Advanced Biorefineries},
  abstract = {<p>Forage sorghum is a promising feedstock for the production of biofuels and bioproducts because it is drought tolerant, high-yielding, and familiar to farmers across the world. However, sorghum spans a diverse range of phenotypes, and it is unclear which are most desirable as bioenergy feedstocks. This paper explores four forage sorghum types, including brown-midrib (<em>bmr</em>), non-<em>bmr</em>, photoperiod sensitive (PS), and photoperiod insensitive (non-PS), from the perspective of their impact on minimum bioethanol selling price (MESP) at an ionic liquid pretreatment-based biorefinery. Among these types, there are tradeoffs between biomass yield, lignin content, and starch and sugar contents. High biomass-yielding PS varieties have previously been considered preferable for bioenergy production, but, if most starch and sugars from the panicle are retained during storage, use of non-PS sorghum may result in lower-cost biofuels (MESP of $1.26/L-gasoline equivalent). If advances in lignin utilization increase its value such that it can be dried and sold for $0.50/kg, the MESP for each scenario is lowered and non-<em>bmr</em>&nbsp;varieties become the most attractive option (MESP of $1.08/L-gasoline equivalent). While&nbsp;<em>bmr</em>&nbsp;varieties have lower lignin content, their comparatively lower biomass yield results in higher transportation costs that negate its fuel-yield advantage.</p>},
  year = {2021},
  journal = {ACS Sustainable Chemistry & Engineering},
  volume = {9},
  pages = {7873 - 7881},
  month = {06/2021},
  issn = {2168-0485},
  doi = {10.1021/acssuschemeng.1c0170610.1021/acssuschemeng.1c01706.s001},
  language = {eng},
}