Search results for " Essential Oils"

Effetti degli oli essenziali di agrumi applicati in post-emergenza sul controllo delle infestanti e sulla comunità microbica del suolo

2017

Sebbene gli erbicidi sintetici ad oggi siano il mezzo più utilizzato per il controllo delle erbe infestanti, è ampiamente dimostrato che essi hanno un impatto negativo sul suolo, sull'ambiente e, inoltre, iniziano a manifestarsi fenomeni di resistenza. Pertanto, è importante sviluppare mezzi alternativi che siano al contempo efficaci e rispettosi dell’ambiente. Gli olii essenziali estratti dalle piante sono stati da sempre utilizzati per molteplici usi come agenti battericidi, virucidi, fungicidi, insetticidi, medicinali e cosmetici. Diversi studi hanno dimostrato tali attività degli oli essenziali estratti dagli agrumi, ma scarsi sono gli studi che hanno investigato il loro potenziale uso …

EFFECTS OF CITRUS ESSENTIAL OILS ON THE MICROBIOLOGICAL SAFETY OF PRIMO SALE CHEESE

In the last years, the consumers demanding foods with no chemical preservatives for food conservation, determined an interest by the food industries for the use of natural biopreservatives. Several essential oils from various plants and fruits have been characterized for their antibacterial activities in order to select new biopreservatives. The aim of this work was to evaluate the organoleptic effect of citrus essential oils to be applied in the processing of sheeps’ milk “Primo Sale” cheese and the inhibitory effect on the main bacterial pathogens of dairy interest. In order to better evaluate the antibacterial effect, the first approach was based on pasteurized milk, in view of the futur…

Influence of Citrus Essential Oils on the Microbiological, Physicochemical and Antioxidant Properties of Primosale Cheese

2022

The aim of this study was to produce a fresh ovine pressed cheese within Pecorino “Primosale” typology with the addition of citrus essential oils (EOs). For this purpose, ewe’s pasteurized milk was added with EOs from the peel of lemons, oranges and tangerines. Seven cheese productions were performed at the pilot plant scale level, including one control production (CP) without the addition of EOs and six experimental productions obtained by the addition of two EO concentrations (100 and 200 µL/L) to milk. The acidification process was obtained by means of the starter cultures Lactococcus lactis CAG4 and PON36. All cheeses showed levels of lactic acid bacteria (LAB) a…

Chemodiversity of the essential oil from leaves of Abies nebrodensis (Lojac.) Mattei

2016

As activities of the project "Preservation of Abies nebrodensis and restore of Geraci Siculo peatlands", the chemical composition of essential oils, obtained from leaves of Madonie fir, was compared with the ones of essential oils derived from Eurasian species studied up to now

Biocide

2022

Biodeterioration represents a revealing problem for the conservation of cultural heritage. It can be identified as a complex interaction within the ecosystem of a microbial community and its substrate and involves physical and chemical alterations resulting from biological and metabolic activity. Designing a diagnostic approach for evaluating the extent of the damage, identifying the biological community, and opting for an efficient methodology aimed at eliminating deteriogens is equally complicated. The correct approach would require understanding the nature of the biodeterioration and implementing methodologies respectful of human health which, however, avoid the indiscriminate killing of…

Essential Oil Composition of Stems and Fruits of Caralluma europaea N.E.Br. (Apocynaceae)

2010

The essential oil of the stems and fruits of Caralluma europaea (Guss.) N.E.Br. (Apocynaceae) from Lampedusa Island has been obtained by hydrodistillation and its composition analyzed. The analyses allowed the identification and quantification of 74 volatile compounds, of which 16 were aromatic and 58 non-aromatic. Stems and fruits contained 1.4% and 2.7% of aromatic compounds respectively, while non-aromatic were 88.3% and 88.8%. Non-aromatic hydrocarbons were the most abundant compounds in both organs, followed by fatty acids. Data showed differences in the profiles between stems and fruits which shared only eighteen compounds; stems accounted for 38 compounds while fruits for 53. Fruits …

Oregano essential oils activity against Listeria monocitogenes biofilms

2015

Perceived and measurable performance of daily brushing and rinsing with essential oils mouthrinse

2010

Aims. To determine whether the oral health benefits of recommending twice daily brushing and rinsing with an essential oil mouthrinse (EOM) are perceived and measurable by dentists and also perceived by their patients at a 3-month recall visit. Methods. This is a monadic, open label, uncontrolled study involving 766 generally healthy Italian subjects aged 19-66 years, with mild to moderate levels of gingivitis, no pockets of more than 4 mm, and at least 20 scorable teeth. Eight dentists scored subjects for plaque and gingivitis at baseline and at 90 days using simplified 4-point plaque and gingivitis indices. All subjects brushed twice daily, immediately followed by rinsing for 30 sec with …

The effects of two essential oil mouthrinses on supragingival plaque regrowth: a comparative study

2012

Aim: The aim of the study was to investigate the plaque inhibiting effects of two commercially available mouthrinses containing essential oils (EO): Listerine (Johnson & Johnson Consumer Healthcare, S. Palomba-Pomezia, I) and Curasept Daycare (Curaden Healthcare, Saronno, I). Both products contain the same concentration of EO, but Curasept Daycare does not contain ethanol as a solvent. Material and Methods: The study was a single-center, observermasked, cross-over design with 12 subjects randomly allocated to treatment sequence according to three replicates of a 4x4 Latin square, incorporating balance for any carryover. A 0.12% chlorhexidine (CHX) rinse and a saline solution served as posit…

In vitro anti-biofilm activity of Boswellia spp. oleogum resin essential oils

2009

Aims:  To evaluate the anti-biofilm activity of the commercially available essential oils from two Boswellia species. Methods and Results:  The susceptibility of staphylococcal and Candida albicans biofilms was determined by methyltiazotetrazolium (MTT) staining. At concentrations ranging from 217·3 μg ml−1 (25% v/v) to 6·8 μg ml−1 (0·75% v/v), the essential oil of Boswellia papyrifera showed considerable activity against both Staphylococcus epidermidis DSM 3269 and Staphylococcus aureus ATCC 29213 biofilms. The anti-microbial efficacy of this oil against S. epidermidis RP62A biofilms was also tested using live/dead staining in combination with fluorescence microscopy, and we observed that …