dc.creator | Cubero Cardoso, Juan | es |
dc.creator | Muñoz Arjona, Andres | es |
dc.creator | Trujillo-Reyes, Reyes | es |
dc.creator | Serrano, Antonio | es |
dc.creator | Alonso-Fariñas, Bernabé | es |
dc.creator | Rodríguez Gutiérrez, Guillermo | es |
dc.creator | Urbano, Juan | es |
dc.creator | Borja Padilla, Rafael | es |
dc.date.accessioned | 2021-02-05T11:13:05Z | |
dc.date.available | 2021-02-05T11:13:05Z | |
dc.date.issued | 2020-12-17 | |
dc.identifier.citation | Cubero Cardoso, J., Muñoz Arjona, A., Trujillo-Reyes, R., Serrano, A., Alonso-Fariñas, Bernabé, Rodríguez Gutiérrez, G.,...,Borja Padilla, R. (2020). Mesophilic Semi-Continuous Anaerobic Digestion of Strawberry Extrudate Pretreated with Steam Explosion. Foods, 9, 1-11. | |
dc.identifier.issn | 2304-8158 | es |
dc.identifier.uri | https://hdl.handle.net/11441/104660 | |
dc.description | Nº de Artículo: 1987 | es |
dc.description.abstract | The production of strawberry concentrate produces a side stream after extrusion that is
commonly landfilled. This strawberry extrudate (SE), of lignocellulosic character, contains valuable
bioactive compounds such as sugars and phenols. Thermal treatments, such as steam explosion,
are currently used for the valorisation of agricultural lignocellulosic wastes due to their ability to impact
the structure of the lignocellulose and hemicellulose present in these wastes, favouring the disruption
of fibrous material. Steam explosion has already been shown as a promising technology for
phenol recovery from SE. Biogas is an additional valuable resource that might be produced from
thermally pretreated and de-phenolised SE. This study assessed the influence of a steam-explosion
pretreatment and the subsequent recovery of phenolic compounds from the long-term operation of a
semi-continuous anaerobic digester of pretreated SE. The anaerobic digestion of SE steam exploded
at 220 ◦C for 5 min and de-phenolised was stable at an OLR of 0.5 g of volatile solids (VS)/(L·d),
which permitted a specific production rate of 135 ± 11 mL of CH4/(g of VS d). The system was
not able to operate at an OLR of 1 g of VS/(L·d), which resulted in a failure of the process. Despite
the inhibition threshold of phenolic compounds not being achieved, the inhibition of the anaerobic
digestion process at an OLR of 1 g of VS/(L·d) was most likely due to the overloading of the system.
This was indicated by the accumulation of soluble organic matter and volatile fatty acids. The increase
in the propionic acid concentration up to 1300 mg/L when operating at OLRs higher than 0.5 g of
VS/(L·d) could be the main factor responsible for the inhibition. An economic evaluation showed
that the proposed approach (steam explosion, phenol recovery, and anaerobic digestion) would offer
positive benefits, taking into account the high phenolic recovery (0.90 g of gallic acid equivalents/kg
of extrudate) and the low sales price of the phenol extract, i.e., EUR 0.610/g of gallic acid equivalents,
needed to reach zero net profit. | es |
dc.description.sponsorship | Ministerio de Economía, Industria y Competitividad CTM2017-83870-R | es |
dc.format | application/pdf | es |
dc.format.extent | 11 p. | es |
dc.language.iso | eng | es |
dc.publisher | MDPI | es |
dc.relation.ispartof | Foods, 9, 1-11. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Strawberry extrudate | es |
dc.subject | Anaerobic digestion | es |
dc.subject | Economic assessment | es |
dc.subject | Steam explosion | es |
dc.subject | Phenol recovery | es |
dc.subject | Valorisation | es |
dc.title | Mesophilic Semi-Continuous Anaerobic Digestion of Strawberry Extrudate Pretreated with Steam Explosion | es |
dc.type | info:eu-repo/semantics/article | es |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería Química y Ambiental | es |
dc.relation.projectID | CTM2017-83870-R | es |
dc.relation.projectID | UHU-1257728 | es |
dc.relation.publisherversion | https://www.mdpi.com/search?q=Mesophilic+Semi-Continuous+Anaerobic+Digestion+of+Strawberry+Extrudate+Pretreated+with+Steam+Explosion&journal=foods | es |
dc.identifier.doi | 10.3390/foods9121887 | es |
dc.contributor.group | Universidad de Sevilla. TEP-135: Ingeniería Ambiental y de Procesos | es |
dc.journaltitle | Foods | es |
dc.publication.volumen | 9 | es |
dc.publication.initialPage | 1 | es |
dc.publication.endPage | 11 | es |
dc.contributor.funder | Consejería de Economía y Conocimiento(Junta de Andalucía) UHU-1257728 | es |