Search results for "Truffle"
showing 6 items of 16 documents
New antimicrobial peptides from Tirmania pinoyi and Terfezia boudieri in the struggle against antibiotic resistance
2017
Antibiotic resistance of common pathogenic microorganisms is a topic of great concern that has finally received media attention and entered into the political agenda of world leaders. Drug-resistant bacteria are cause of thousands of deaths worldwide, then there is an urgent need for new antimicrobials, otherwise we risk losing the ability to control effectively the infectious diseases. Such emergence can be faced looking also at not usual source of antimicrobial agents, for example medicinal mushrooms. With the objective to tackle Gram-positive and Gram-negative pathogens, we focused on two edible desert truffles mushrooms Tirmania pinoyi and Terfezia boudieri as origin of new antimicrobia…
Antibacterial Activity of Desert Truffles from Saudi Arabia Against Staphylococcus aureus and Pseudomonas aeruginosa
2017
Abstract Medicinal mushrooms represent an unlimited source of polysaccharides with nutritional, antitumoral, antibacterial, and immune-stimulating properties. Traditional studies of epigeous higher Basidiomycetes have recently been joined by studies of hypogeous fungi and, in particular, of so-called desert truffles. With the aim to obtain novel agents against bacteria of clinical importance, we focused on the edible desert truffle mushrooms Tirmania pinoyi, Terfezia claveryi, and Picoa juniperi as sources of new antimicrobial agents. In particular, we investigated the in vitro antibacterial activity of acid-soluble protein extracts (aqueous extracts) of these 3 species against the Gram-pos…
La coltivazione del tartufo in Sicilia: risultati preliminari
2011
In recent times truffles were found in several natural forest ecosystems and reaforestation of Sicily. On the basis of these findings a number of research projects were activated. In the framework of an agreement between the Laboratory of Mycology of the Department of Botany (University of Palermo) and the Farm "Buontempo-Le Due Sicilie", located in the territory of the Madonie Natural Park, a first attempt to cultivate truffles of economic importance were carried out. In the spring of 2006 the experimental truffle-bed was developed on the basis of 100 seedlings of Corylus avellana L. inoculated with Tuber aestivum Vitt. (80%) and T. melanosporum Vittad. (20%). Besides 110 seedlings of Quer…
Volatile organic compounds in truffle (Tuber magnatum Pico): Comparison of samples from different regions of Italy and from different seasons
2015
AbstractIn this paper volatile organic compounds (VOCs) from Tuber magnatum fruiting bodies were analyzed using a PTR-TOF-MS instrument. The aim was to characterize the VOC's profile of the fruiting bodies and identify if any VOCs were specific to a season and geographical areas. Multiple factorial analysis (MFA) was carried out on the signals obtained by MS. Experiments using ITS region sequencing proved that the T. magnatum life cycle includes the formation of fruiting bodies at two different times of the year. The VOCs profiles diverge when different seasonal and geographical productions are considered. Using PTR-TOF-MS, compounds present at levels as low pptv were detected. This made it…
Characterization of key aroma compounds in Burgundy truffle
2021
International audience
Antimicrobial activity of the extracts of Terfezia claveryi and Tirmania pinoyi against gram-positive and gram-negative bacteria causal agent of dise…
2017
Tomato diseases caused by virus, bacteria and fungi have been reported worldwide and caused considerable economic losses. Among all diseases, attention is paid to those caused by bacteria. In this study, the extracts of two “desert truffles” Terfezia claveryi and Tirmania pinoyi were tested against six bacterial species, causal agent of economically important tomato diseases: Pseudomonas corrugata, P. mediterranea, P. syringae pv. tomato Pectobacterium carotovorum subsp. carotovorum, Xanthomonas vesicatoria and Clavibacter michiganensis subsp. michiganansis. The extracts from both fungal species, evaluated by agar well diffusion method, showed an antimicrobial activity against all the teste…