Dual Utilization of Medicinal and Aromatic Crops as Bioenergy Feedstocks
| Autor: | Ekaterina A. Jeliazkova, Charles L. Cantrell, Charleson R. Poovaiah, Tess Astatkie, Charles Neal Stewart, Valtcho D. Zheljazkov, Blake L. Joyce, Holly L. Baxter |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Biomass Panicum Mentha spicata 01 natural sciences Mentha × gracilis Crop Bioenergy Bioproducts Oils Volatile Mentha canadensis Ethanol biology Mentha piperita 04 agricultural and veterinary sciences General Chemistry biology.organism_classification Artemisia Agronomy Biofuel Biofuels 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Panicum virgatum General Agricultural and Biological Sciences 010606 plant biology & botany |
| Zdroj: | Journal of Agricultural and Food Chemistry. 66:8744-8752 |
| ISSN: | 1520-5118 0021-8561 |
| DOI: | 10.1021/acs.jafc.7b04594 |
| Popis: | Dual production of biofuels and chemicals can increase the economic value of lignocellulosic bioenergy feedstocks. We compared the bioenergy potential of several essential oil (EO) crops with switchgrass ( Panicum virgatum L.), a crop chosen to benchmark biomass and lignocellulosic biofuel production. The EO crops of interest were peppermint ( Mentha × piperita L.), "Scotch" spearmint ( Mentha × gracilis Sole), Japanese cornmint ( Mentha canadensis L.), and sweet sagewort ( Artemisia annua L.). We also assessed each crop for EO production in a marginal production environment in Wyoming, USA, with irrigation and nitrogen (N) rates using a split-plot experimental design. Oil content ranged from 0.31 to 0.4% for Japanese cornmint, 0.23 to 0.26% for peppermint, 0.38 to 0.5% for spearmint, and the overall mean of sweet sagewort was 0.34%. Oil yields ranged from (in kg ha-1) 34 to 165 in Japanese cornmint, 25 to 108 in peppermint, 29.3 to 126 in spearmint, and 39.7 in sweet sagewort. EO production, but not composition, was sensitive to N fertilization. The alternative bioenergy crops and switchgrass produced similar amounts of ethanol from bench-scale simultaneous saccharification and fermentation assays. Value-added incomes from the EO proceeds were estimated to be between $1055 and $5132 ha-1 from peppermint, $1309 and $5580 ha-1 from spearmint, $510 and $2460 ha-1 from Japanese cornmint, and $3613 ha-1 from sweet sagewort under Wyoming growth conditions. The advantage of the proposed crops over traditional lignocellulosic species is the production of high-value natural products in addition to lignocellulosic biofuel production. |
| Databáze: | OpenAIRE |
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