59 research outputs found
Dels materials clà ssics als alternatius en la preparació de substrats. Motivacions de la substitució, tendències, disponibilitat i caracterÃstiques
En el context hortÃcola, el terme substrat s’aplica a qualsevol material sòlid, diferent del sòl insitu, natural o artificial, pur o en barreja, que
col·locat en un contenidor i sotmès a un programa especÃfic de gestió (principalment reg i fertilització) permet l’establiment de l’aparell radicular
amb un grau d’aeració satisfactori, possibilita una adequada nutrició hÃdrica i mineral i actua com a suport de la planta.Postprint (published version
Approaching compost stability from Klason lignin modified method: Chemical stability degree for OM and N quality assessment
Postprint (published version
MSW facilities of combined biological treatment: anaerobic digestion plus composting
Postprint (published version
Ús del compost: millora dels sòls o gestió de residus orgà nics?
La utilització de matèria orgà nica, i en particular del compost, presenta molts avantatges per a la millora dels sòls, però cal conèixer i controlar bé les caracterÃstiques dels materials a aportar i les necessitats de sòls i vegetals per decidir les aplicacions. Existeix certa confusió en considerar si utilitzar certs tipus de matèria orgà nica es fa tan sols per trobar destà a un material o si realment es realitza amb uns objectius clars i planificant bé les aportacions. Es troba a faltar informació clara, objectiva i coordinada en el reciclatge de materials orgà nics a través del sòl i els vegetals. En l'article es parla d'aquests aspectes, insistint a què s'ha d'anomenar compost i que no tots els materials amb aquesta denominació s'ha de considerar que presenten les mateixes caracterÃstiques ni comportamentsPostprint (published version
Sostenibilidad en la gestión de residuos orgánicos municipales: su implicación en la protección del suelo
Postprint (published version
The impact of improper materials in biowaste on the quality of compost
Separate collection of biodegradable waste provides a better-quality raw material for the production of fertilisers than material obtained from the mechanical separation of municipal solid waste. Source-collected biowaste can be used for the production of compost, and its quality will depend on factors ranging from the presence of improper materials—inter alia, glass, and plastic—to the duration of the treatment process. This project was commissioned by the Catalan Waste Agency (ARC), and was developed by ENT
Environment & Management and by the Barcelona School of Agricultural Engineering (ESAB) of the Universitat Politecnica de Catalunya (UPC). The authors would like to thank Noemà Iglesias Farran and Meri Pous Alo of the ARC for their support in the development of this project, and Raimon Rafols Florenciano for his
support in the revision of this paper. This paper contributes to the project DECISIVE (DECentralIzed management Scheme for Innovative Valorization of urban biowastE), which received funding from the European Commission under EU’s Horizon 2020 researchand-innovation program (grant agreement number 68922).Postprint (updated version
Compoball: Novel On-line Composting Monitoring System
Postprint (published version
Screening of antioxidant activity of Gentian Lutea root and its application in Oil-in-Water Emulsions
Gentiana Lutea root (G. Lutea) is a medicinal herb, traditionally used as a bitter tonic in gastrointestinal ailments for improving the digestive system. The active principles of G. Lutea were found to be secoiridoid bitter compounds as well as many other active compounds causing the pharmacological effects. No study to date has yet determined the potential of G. Lutea antioxidant activity on lipid oxidation. Thus, the aim of this study was to evaluate the effects of an extract of G. Lutea on lipid oxidation during storage of an emulsion. G. Lutea extracts showed excellent antioxidant activity measured by DPPH scavenging assay and Trolox equivalent antioxidant capacity (TEAC) assays. An amount of 0.5% w/w G. Lutea lyophilise was able to inhibit lipid oxidation throughout storage (p < 0.05). A mixture of G. Lutea with 0.1% (w/w) BSA showed a good synergic effect and better antioxidant activity in the emulsion. Quantitative results of HPLC showed that G. Lutea contained secoiridoid-glycosides (gentiopiocroside and sweroside) and post column analysis displayed radical scavenging activity of G. Lutea extract towards the ABTS radical. The results from this study highlight the potential of G. Lutea as a food ingredient in the design of healthier food commoditiesPeer ReviewedPostprint (published version
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