28 research outputs found
Progettualità e modelli per la pittura nei cantieri romani di Domenico Fontana: nuove acquisizioni
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Effect of grafting and ripening conditions on some qualitative traits of “Cuore di bue” tomato fruits
No full textBACKGROUND: Grafting technique is increasingly being employed in order to obtain high production in difficult soils and to
reduce chemical application. The present experimentalwork addressed the effect of grafting of tomato, cv. ‘‘Profitto’’ (P), on to
the rootstocks ‘‘Beaufort’’ (B) and ‘‘Big Power’’ (BP) on fruit quality. Both fruit left to ripen on the plant and fruit stored at low
temperature (4 ◦C) were included in the quality assessment.
RESULTS: Vitamin C and fructose content decreased in B and BP in fruits stored at 4 ◦C, whereas fruits ripened on the
plant showed higher sugar concentrations. The free phenolic acids extracted were identified as caffeic acid, p-coumaric acid,
chlorogenic acid and ferulic acid. Higher antioxidant compound content was consistently shown by P. Cold storage conditions
caused a higher phenolic acid production due to the increase of ferulic acid. Compared with ripening on the plant, percentage
differences ranged between 14.3% (caffeic acid) and 12.5% (p-coumaric and chlorogenic acids). Total phenol content was also
affected by maturation, showing higher values in fruits ripened on the plant than under cold storage conditions.
CONCLUSIONS: It was possible to observe a significant relationship between tomato fruit quality and grafting and relevant
differences in fruit ripening conditions
Effect of grafting on biochemical and nutritional traits of “Cuore di Bue” tomatoes harvested at different ripening stages
No full textIn the last years “Cuore di Bue” tomato has been one of the most important types requested from
the market because of its special flesh texture and flavor which is very pleasing to the consumer.
The present study was aimed to verify if rootstock affects some specific qualitative traits of this
tomato fruits during ripening process. The main quality traits during ripening of tomato fruits of
cultivar "Profitto" ungrafted and grafted on "Beaufort" and "Big Power" rootstocks were
determined. Results showed that different ripening stages and grafting combinations affected,
sometimes strongly, tomato fruits quality. Among phenolics, gallic, cinnamic and p-coumaric acid
declined during ripening, whereas chlorogenic, caffeic and ferulic acid increased in the last ripening
stages. The quality of tomato fruits was also influenced by grafting. As far as quality parameters
(color, °Brix, electrical conductivity, pH, titratable acidity) and sugar content are concerned there
were significant differences. Strong differences are attributable also to the contents of phenolic
acids. In particular, ungrafted Profitto plants showed more p-coumaric and caffeic acid content than
the other two grafted treatments. Profitto and Profitto x Beaufort showed more chlorogenic and
cinnamic acid than Profitto x Big Power variety. The last one variety showed a completely different
chlorogenic acid accumulation pattern and contained more gallic and ferulic acid than the other two.
The nutritional value of grape tomatoes "Cuore di Bue" considerably increased with ripening stage.
About grafting, this technique has a significant effect on various biochemical and nutritional
properties in tomato fruit. Many chemical compounds related to the antioxidants group have been
involved in these changes showing a significant decrease in grafted plants fruits. Concerning other
parameters such as pH, EC and Brix, the graft led to very small changes
Sponsorizzazione e beni culturali
No full textIn her report, the author highlighted the positive and critical aspects of sponsorship for cultural heritag
The Feynman problem and fermionic entanglement: Fermionic theory versus qubit theory
No full textThe present paper is both a review on the Feynman problem, and an original research presentation on the relations between Fermionic theories and qubits theories, both regarded in the novel framework of operational probabilistic theories. The most relevant results about the Feynman problem of simulating Fermions with qubits are reviewed, and in the light of the new original results, the problem is solved. The answer is twofold. On the computational side, the two theories are equivalent, as shown by Bravyi and Kitaev [S. B. Bravyi and A. Y. Kitaev, Ann. Phys. 298, 210 (2002)]. On the operational side, the quantum theory of qubits and the quantum theory of Fermions are different, mostly in the notion of locality, with striking consequences on entanglement. Thus the emulation does not respect locality, as it was suspected by Feynman [R. Feynman, Int. J. Theor. Phys. 21, 467 (1982)]
Fermionic computation is non-local tomographic and violates monogamy of entanglement
No full textWe show that the computational model based on local fermionic modes in place of qubits does not satisfy local tomography and monogamy of entanglement, and has mixed states with maximal entanglement of formation. These features directly follow from the parity superselection rule. We generalize quantum superselection rules to general probabilistic theories as sets of linear constraints on the convex set of states. We then provide a link between the cardinality of the superselection rule and the degree of holism of the resulting theory
Brevi riflessioni sulla nuova disciplina dei contratti di cessione dei prodotti agricoli nelle filiere agro alimentari (d.lgs. n. 198 del 2021)
No full textIl saggio offre alcuni spunti interpretativi in relazione al Dlgs. n.198 del 2021 di recepimento in Italia della direttiva UE 2019/633 sulle pratiche commerciali scorrette nella filiera agroalimentare. L’Autrice mette in evidenza come le scelte del legislatore diano una risposta concreta alle diverse sollecitazioni della dottrina tese ad offrire soluzioni alle evidenziate lacune della precedente disciplina interna in materia di regolazione dei contratti di cessione nella filiera agroalimentare (art. 62, DL 1 del 2012), ispirandosi a quelle scelte già sperimentate nel contesto agrario a tutela degli imprenditori agricoli nei confronti dei proprietari dei fondi (legge 203 del 1982). L’adozione di una tecnica mista consistente nella individuazione di norme imperative che fissano uno zoccolo duro a garanzia della parte debole e della utilizzazione di forme flessibili di tutela consistenti in tecniche consensuali affidate alla cura delle organizzazioni professionali o sindacali può validamente contribuire al raggiungimento dell’obiettivo della protezione degli interessi del soggetto debole del rapporto e, conseguentemente, alla stabilità del mercato.The essay offers some interpretative hints in relation to the Legislative Decree 198 of 2021 for the transposition in Italy of the EU directive 2019/633 on unfair commercial practices in the agri-food chain. The Author highlights how the choices of the legislator give a concrete response to the various requests of the doctrine aimed at offering solutions to the highlighted shortcomings of the previous internal discipline on the regulation of sale contracts in the agri-food chain (art.62, Legislative Decree 1 of 2012), inspired by those choices already tested in the agricultural context to protect agricultural entrepreneurs against the owners of the land (Law 203 of 1982). The adoption of a mixed technique consisting in the identification of mandatory rules that establish a hard core to guarantee the weaker party and the use of flexible forms of protection consisting of consensual techniques entrusted to the care of professional or trade union organizations can validly contribute to the achievement of objective of protecting the interests of the weak subject of the relationship and, consequently, the stability of the market
Qualitative and healthy traits of different Italian typical artichoke genotypes
No full textArtichoke is one of the most important crop cultivated in the Mediterranean area and especially in Italy. Among all the different artichoke types available on the market, two typical genotypes grown in the Veneto basin in northern Italy, Violetto di S. Erasmo (VE) and Violetto di Chioggia (VC), both unknown from a nutritional point of view, were characterized. All the results obtained were compared with those of Violetto di Toscana (VT) that can be considered a standard for the oval purple type. Violetto di S. Erasmo (VE) and VC showed higher antioxidant capacity than VT. Chlorogenic acid content was very high, especially in VE and VC. Caffeic acid was also detected, whereas p-coumaric acid, ferulic acid, and gallic acid were not found. Moreover, Veneto genotypes showed a high ascorbic acid content leading us to consider them suitable also for the processing industry and a rather good source of functional compounds and healthy properties
