Search results for "Economy"
showing 10 items of 2131 documents
Un concetto di suolo per valorizzare i servizi ecosistemici nell’economia del dopo Covid 19
2021
Changes in land use and soil management and the introduction of new technologies which exploiting environmental resources have in many cases led to an increase in soil degradation. A new definition of soil could be useful because it could lead to the genesis of a new discipline that we could call pedo-economics.
Protection and conservation of the manna ash landscape in Sicily
2017
Known as manna ashes, some local varieties of Fraxinus ornus L. and F. angustifolia Vahl (Oleaceae) are cultivated for extracting the manna, a product rich in mannose which is useful under both pharmaceutical and nutraceutical aspects. As wild plants in Sicily these ashes participate in diversifying evergreen and deciduous oak woods as well as other forest communities at the watercourse borders, together with several species of Salix, Populus and Ulmus, particularly in the hills. Cultivation of manna dates back to ancient times in Sicily and elsewhere and ash groves were increasingly spread up to the half of last century. Then, the culture had a progressive decline due to the abandonment of…
Formulation of a new sustainable feed from food industry discards for rearing the purple sea urchin Paracentrotus lividus
2020
The lack of suitable feeds for echinoculture has led to use natural resources already widely exploited by human activities. To move towards a higher sustainability of echinoculture, this study proposes a sustainable feed for Paracentrotus lividus. Two experimental formulations were obtained using discarded endive (Cichorium endivia) leaves and anchovy (Engraulis encrasicolus) industry discards in different proportions, and agar as a binder. The evaluation of the feed stability showed that the feed was stable for 72 hr, allowing a suitable feeding for sea urchins. Both formulations showed a proper nutritional value and fatty acid profile, corresponding to the features of the main ingredients…
Exploitation of food processing discards as main ingredients of sustainable feeds for the aquaculture of Paracentrotus lividus
2022
Sea urchin gonads are considered a delicacy in many parts of the world, leading to an increase of fishing pressure and resulting in the decline of natural stock of commercially valuable species. Aquaculture could be the best solution to fill the gap between market demand and natural supply, but in a context of Sustainable Development and Blue Growth, aquaculture sector is called to reduce its ecological footprint. Aquaculture feeds are produced using ingredients obtained from natural resources already overexploited by human activities, such as fish meal and fish oil that are considered the best source of lipids, or cereal meals that are included as protein sources. In this context, in order…
A new sustainable formulated feed based on discards from food industries for rearing the sea urchin Paracentrotus lividus (Lmk)
2019
During a 18‐week experiment in a sea‐based system, Paracentrotus lividus was fed with two formulations of a new sustainable feed whose main ingredients were food farming discards, mostly outermost lettuce leaves, in different percentage. Egg white was added as protein source and binder, and a little amount of commercial fish feed was added as lipid source. At the end of the experiment, a high survival rate (>80%) and an increase in test diameter (22%), total weight (130%), gonad weight (240%) and gonad index expressed as size‐adjusted gonad weight (288%) were recorded. Gonads achieved a good colour and high levels of essential and polyunsaturated fatty acids, hence representing a commerc…
Hemp flour, from waste to nutritional and nutraceuticals reuse
2023
One of the main objectives of recent years is to characterize and valorize by-products of agri-food industries, as new sources of bioactive components, from the perspective of a circular economy and a biorefinery approach both for environmental and economic reasons. Hemp flour, obtained from Cannabis sativa seeds, is an example of promising bio-sustainability raw material with a high nutritional value that can be obtained from industrial by-products. From C. sativa seeds is obtained an oil rich in fatty acids, mainly linoleic and α-linolenic acids [1]. After oil extraction, seeds can be ground to obtain edible flour. Foods fortified with these “non-wheat flours” would have an additional sup…
Architectural technologies for life environment: spent coffee ground reuse, a novel way to intend architectural and engineering products?
2021
Green architecture is the novel trend in construction that considers innovative materials and solutions to architectural design and engineering build. Then the use of advanced organic materials and renewable energy resources are the new path followed by “bio-designers”. In this context, particularly important are the novel economic and social criteria, often related to ethical issues, whose aim is generating a low environmental impact. In fact, bio-architectural construction contemplates the reuse of industrial bio-wastes to manufacture novel green materials with enhanced performances. The main approach behind a green building is that the whole construction life cycle must be eco-sustainabl…
Development of New Bio-based Materials Derived from Sicilian Agri-Food Industry Waste
2023
La necessità di soluzioni di materiali da costruzione a base biologica e sostenibili è aumentata drammaticamente nell’ultimo ventennio. Questa ricerca esplora i possibili modi per riutilizzare materiale di scarto a base biologica (come i gusci della frutta secca), derivati dall'industria agroalimentare, per la produzione di nuovi materiali da costruzione sani in linea con i principi dell'economia circolare. L’analisi di alcuni casi di studio precedenti e le attuali ricerche dimostrato la possibilità di riutilizzare i gusci della frutta secca per la realizzazione di nuovi componenti edilizi. Le attuali tendenze mostrano che le resine sintetiche sono sempre più usati come legante per incollar…
Packaging and plastic are synonymous with waste: But is that really the case?
2022
The paper presents the value of packaging and misconceptions about plastic. In addition to shedding light on clichés and fake news about plastic and packaging, it outlines opportunities to consider the use and management of packaging for responsible waste collection; and new forms of consumption and supply chains to facilitate the transition from the current linear consumption model to one that is more responsible and open to a circular economy.
Sine cura. Verso il ri-ciclo dell'architettura del secondo Novecento
2019
Gli argomenti discussi nel saggio interrogano il destino che il Codice dei Beni Culturali (2004- 2011) determina per le opere del secondo Novecento. Nella costruzione del futuro di questi manufatti, che per funzione, tecnologia e cicli d’uso sono spesso segnati dall’obsolescenza e dall’abbandono, le ambiguità e le incongruenze delle attuali procedure legislative sollecitano profondamente il ruolo culturale delle esperienze di ricerca che usano metodologie meta progettuali. Il confronto fra alcuni casi italiani ed altri europei rimarca il ruolo del progetto nella costruzione di una prospettiva di tutela trasformativa per il costruito del secondo Novecento. Nel quadro di azione marcato dall’o…