Environmental assessment of different technologies for bioethanol production from Cynara cardunculus: A Life Cycle Assessment study

Espada, Juan J.; Villalobos, Héctor; Rodríguez, Rosalía

doi:10.1016/j.biombioe.2020.105910

Cited by 21 publications

(8 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The seeds of the flower are exploited for oil production in food and bio-diesel supply chains. On the other hand, the nonedible lignocellulosic residues of this crop are reduced to a size of 20-40 mm by chipping and/or can undergo pretreatments that favor further exploitation of this biomass [9,10]. Steam-explosion is the most common and cost-effective method for pretreatment of lignocellulosic materials [11,12].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Exploitation of Residual Cynara cardunculus L. to Levulinic Acid and n-Butyl Levulinate

et al. 2021

View full text Add to dashboard Cite

Hydrolysis and butanolysis of lignocellulosic biomass are efficient routes to produce two valuable bio-based platform chemicals, levulinic acid and n-butyl levulinate, which find increasing applications in the field of biofuels and for the synthesis of intermediates for chemical and pharmaceutical industries, food additives, surfactants, solvents and polymers. In this research, the acid-catalyzed hydrolysis of the waste residue of Cynara cardunculus L. (cardoon), remaining after seed removal for oil exploitation, was investigated. The cardoon residue was employed as-received and after a steam-explosion treatment which causes an enrichment in cellulose. The effects of the main reaction parameters, such as catalyst type and loading, reaction time, temperature and heating methodology, on the hydrolysis process were assessed. Levulinic acid molar yields up to about 50 mol % with levulinic acid concentrations of 62.1 g/L were reached. Moreover, the one-pot butanolysis of the steam-exploded cardoon with the bio-alcohol n-butanol was investigated, demonstrating the direct production of n-butyl levulinate with good yield, up to 42.5 mol %. These results demonstrate that such residual biomass represent a promising feedstock for the sustainable production of levulinic acid and n-butyl levulinate, opening the way to the complete exploitation of this crop.

show abstract

Section: Introductionmentioning

confidence: 99%

Sustainable Exploitation of Residual Cynara cardunculus L. to Levulinic Acid and n-Butyl Levulinate

et al. 2021

View full text Add to dashboard Cite

show abstract

“…In the present research paper, sugarcane bagasse, common reed, and cardoon were considered due to their potential as a source of renewable energy and their sustainability in fermentation to fuel route ( Cotana et al, 2015a , b ; Espada et al, 2021 ). Eight undiluted inhibitor-rich liquors, obtained after the steam explosion of the feedstocks mentioned above, were here used as such for both strain inhibitor tolerance assessment and fermentation to ethanol.…”

Section: Introductionmentioning

confidence: 99%

Selection of Superior Yeast Strains for the Fermentation of Lignocellulosic Steam-Exploded Residues

et al. 2021

View full text Add to dashboard Cite

The production of lignocellulosic ethanol calls for a robust fermentative yeast able to tolerate a wide range of toxic molecules that occur in the pre-treated lignocellulose. The concentration of inhibitors varies according to the composition of the lignocellulosic material and the harshness of the pre-treatment used. It follows that the versatility of the yeast should be considered when selecting a robust strain. This work aimed at the validation of seven natural Saccharomyces cerevisiae strains, previously selected for their industrial fitness, for their application in the production of lignocellulosic bioethanol. Their inhibitor resistance and fermentative performances were compared to those of the benchmark industrial yeast S. cerevisiae Ethanol Red, currently utilized in the second-generation ethanol plants. The yeast strains were characterized for their tolerance using a synthetic inhibitor mixture formulated with increasing concentrations of weak acids and furans, as well as steam-exploded lignocellulosic pre-hydrolysates, generally containing the same inhibitors. The eight non-diluted liquors have been adopted to assess yeast ability to withstand bioethanol industrial conditions. The most tolerant S. cerevisiae Fm17 strain, together with the reference Ethanol Red, was evaluated for fermentative performances in two pre-hydrolysates obtained from cardoon and common reed, chosen for their large inhibitor concentrations. S. cerevisiae Fm17 outperformed the industrial strain Ethanol Red, producing up to 18 and 39 g/L ethanol from cardoon and common reed, respectively, with ethanol yields always higher than those of the benchmark strain. This natural strain exhibits great potential to be used as superior yeast in the lignocellulosic ethanol plants.

show abstract

“…The high potential of Cynara cardunculus biomass to produce bioethanol [65] has been well studied. Ethanol-water (EW) pre-treatment was implemented for the fragmentation of lignocellulosic biomass present in the cardoon to improve the glucose yield after enzymatic saccharification.…”

Section: Herbaceous and Other Cropsmentioning

confidence: 99%

Low Indirect Land Use Change (ILUC) Energy Crops to Bioenergy and Biofuels—A Review

et al. 2022

View full text Add to dashboard Cite

Energy crops are dedicated cultures directed for biofuels, electricity, and heat production. Due to their tolerance to contaminated lands, they can alleviate and remediate land pollution by the disposal of toxic elements and polymetallic agents. Moreover, these crops are suitable to be exploited in marginal soils (e.g., saline), and, therefore, the risk of land-use conflicts due to competition for food, feed, and fuel is reduced, contributing positively to economic growth, and bringing additional revenue to landowners. Therefore, further study and investment in R&D is required to link energy crops to the implementation of biorefineries. The main objective of this study is to present a review of the potential of selected energy crops for bioenergy and biofuels production, when cultivated in marginal/degraded/contaminated (MDC) soils (not competing with agriculture), contributing to avoiding Indirect Land Use Change (ILUC) burdens. The selected energy crops are Cynara cardunculus, Arundo donax, Cannabis sativa, Helianthus tuberosus, Linum usitatissimum, Miscanthus × giganteus, Sorghum bicolor, Panicum virgatum, Acacia dealbata, Pinus pinaster, Paulownia tomentosa, Populus alba, Populus nigra, Salix viminalis, and microalgae cultures. This article is useful for researchers or entrepreneurs who want to know what kind of crops can produce which biofuels in MDC soils.

show abstract

Environmental assessment of different technologies for bioethanol production from Cynara cardunculus: A Life Cycle Assessment study

Cited by 21 publications

References 25 publications

Sustainable Exploitation of Residual Cynara cardunculus L. to Levulinic Acid and n-Butyl Levulinate

Sustainable Exploitation of Residual Cynara cardunculus L. to Levulinic Acid and n-Butyl Levulinate

Selection of Superior Yeast Strains for the Fermentation of Lignocellulosic Steam-Exploded Residues

Low Indirect Land Use Change (ILUC) Energy Crops to Bioenergy and Biofuels—A Review

Contact Info

Product

Resources

About