Search results for "Rini"
showing 10 items of 746 documents
NMR-based quantification of rosmarinic and carnosic acids, GC-MS profile and bioactivity relevant to neurodegenerative disorders of Rosmarinus offici…
2013
Abstract A comparative study of phytochemicals content and biological properties of eight Rosmarinus officinalis (rosemary) populations (RO1–RO8) collected in different areas of Tunisia was carried out. Two of the main rosemary constituents, rosmarinic and carnosic acids, were quantified by an NMR technique. Carnosic acid content was higher than that of rosmarinic acid. The non-polar constituents were examined by GC and GC–MS. Total phenols and flavonoids content were also determined in order to discuss the possible correlation between these phytochemicals and bioactivity. Antioxidant activity was investigated through different in vitro assays. Sample RO3 from a sub-humid area showed the hi…
Development of high-performance thin layer chromatography method for identification of phenolic compounds and quantification of rosmarinic acid conte…
2020
ABSTRACT Aim: Representatives of Nepetoideae Burnett subfamily are promising species of the Lamiaceae Martinov family because of accumulating such valuable groups of secondary metabolites as terpenoids and polyphenols. A high-performance thin layer chromatography (HPTLC) fingerprint method for the qualitative determination of phenolic compounds and for the quantification of rosmarinic acid (RA) content in methanol extracts of five species of this subfamily was developed for the first time. Materials and Methods: Dried aerial parts of Dracocephalum moldavica L., Ocimum americanum L., Lophanthus anisatus (Nutt.) Benth., Monarda fistulosa L., and Satureja hortensis L. collected in flowering pe…
SMART NANOSPONGE-BASED SYSTEMS FOR ADVANCED APPLICATIONS
2023
The chemical composition of the aerial parts essential oil of Ammi crinitum Guss. (Apiaceae) endemic of Sicily (Italy)
2022
Ammi L. is a small genus of economically important plants belonging to Apiaceae family that includes only six taxa. In the present study the chemical composition of the essential oil from aerial parts of Ammi crinitum Guss., a very rare plant, endemic of Sicily, was analyzed by GC–MS. No previously paper has been published on this species. The results showed the presence of large quantity of monoterpene hydrocarbons with sabinene (63.9%), as the most abundant component. Other metabolites present in good quantity were γ-terpinene (8.0%), and 4-terpineol (3.7%). Based on the composition of the essential oil of all the other Ammi taxa, several considerations have been carried out.
Polyphenols and Pharmacological Screening of a Monarda fistulosa L. dry Extract Based on a Hydrodistilled Residue By-Product
2021
This study aimed to determine the composition and content of polyphenols in the dry extract obtained from the hydrodistilled residue by-product of the wild bergamot (Monarda fistulosa L., Lamiaceae Martinov family) herb (MFDE) and to evaluate its safety and pharmacological properties. The total phenolic content (TPC) in the MFDE was 120.64 mg GAE/g. The high-performance liquid chromatography (HPLC) analysis showed the presence of a plethora of phenolic compounds, including hydroxycinnamic acids and flavone derivatives in the MFDE, with rosmarinic acid and luteolin-7-O-glucoside being the main components. With an IC50 value of 0.285 mg/mL, it was found to be a strong DPPH radical scavenger. …
Símbolos en el atuendo de las mujeres mayas de la antigüedad. Una aproximación iconográfica a tres diseños singulares
2021
Este artículo forma parte de una investigación de mayor envergadura que tiene como objeto de estudio la representación femenina en el arte maya a través de los elementos que conforman sus retratos y definen sus identidades. Tanto las joyas, como la pintura corporal, los tocados o las prendas de vestir, establecían un diálogo con el espectador de su tiempo que si se analiza e interpreta en la actualidad, también puede aproximar al investigador al conocimiento sobre sus portadoras. Por ello, en esta ocasión presentamos concretamente el análisis de tres símbolos que forman parte de la indumentaria de algunas mujeres de la élite maya, entre los cuales cabe destacar el que luce la noble Señora …
Vetrinizzazione vs. Devetrinizzazione
2008
L'articolo prende posizione intorno al concetto di “Vetrinizzazione Sociale” così come è stato inteso dal sociologo Vanni Codeluppi. Al vaglio di un’analisi semiotica, il dispositivo delle vetrine si rivelerà molto più complesso di quanto si sia creduto. Più che dispositivo di “assimilazione all’esibizione” cui tenderebbe ogni ambito della nostra vita sociale, la vetrina è il discrimine che oppone /pubblico/e /privato/ nella città regolando e rinnovando quotidianamente il senso estetico nella vita di tutti i giorni: è guardando le vetrine che si capisce cosa è di moda e cosa no ma soprattutto è attraverso le vetrine che si può capire chi si è (come fa Andy Warhol in un suo celebre aforisma)…
Fish introductions and light modulate food web fluxes in tropical streams : a whole-ecosystem experimental approach
2016
Decades of ecological study have demonstrated the importance of top-down and bottom-up controls on food webs, yet few studies within this context have quantified the magnitude of energy and material fluxes at the whole-ecosystem scale. We examined top-down and bottom-up effects on food web fluxes using a field experiment that manipulated the presence of a consumer, the Trinidadian guppy Poecilia reticulata, and the production of basal resources by thinning the riparian forest canopy to increase incident light. To gauge the effects of these reach-scale manipulations on food web fluxes, we used a nitrogen (15N) stable isotope tracer to compare basal resource treatments (thinned canopy vs. con…
il volto della morte: le maschere funerarie della sepoltura dei preti morti di Gangi
2014
riassunto — Le mummie moderne e il signifcato recondito della doppia sepoltura nelle culture mediterranee moderne sono da tempo ampiamente dibattuti. In questo lavoro si discute di una particolare “collezione” di corpi di ecclesiastici, mummifcati ed esposti in un comune montano madonita della Sicilia, Gangi. I corpi, principalmente risalenti al XIX secolo, mummifcati per colatura come nella tradizione del tempo e vestiti degli abiti talari, sono esposti nel piano sottostante della Chiesa Madre, in quella che nella tradizione è detta la “fossa dei parrini” (fossa dei preti). Le mummie, a differenza di altri siti siciliani e mediterranei, sono altresì corredate di sonetto commemorativo e di …
L'intersezione di filosofia e teologia nel "Discorso sul Dio in cui credo" di Francesco Conigliaro
2017
Una discussione dei nodi filosofici contenuti nel recente ampio libro di F. Conigliaro sul tema della Trinità cristiana, e dei filosofi coinvolti nella trattazione di Conigliaro.