Article Publish Status: FREE
Abstract Title:

Biochemical Characterization of Clinical Strains ofspp. and Their Sensitivity to Polyphenols-Rich Extracts from Pistachio (L.).

Abstract Source:

Pathogens. 2018 Oct 22 ;7(4). Epub 2018 Oct 22. PMID: 30360375

Abstract Author(s):

Erminia La Camera, Carlo Bisignano, Giuseppe Crisafi, Antonella Smeriglio, Marcella Denaro, Domenico Trombetta, Giuseppina Mandalari

Article Affiliation:

Erminia La Camera


We characterized a number of clinical strains ofspp. and investigated their sensitivity against polyphenols-rich extracts from natural raw and roasted pistachios (NPRE and RPRE, respectively). Out of 31 clinical isolates ofspp., 23 were coagulase-positive and identified as, of which 21 were MRSA. Polyphenols-rich extracts from natural pistachios and roasted pistachios were prepared: the total phenols content, expressed as gallic acid equivalent (GAE)/100 g fresh weight (FW), was higher in natural pistachios (359.04± 8.124 mg) than roasted pistachios (225.18 ± 5.055 mg). The higher total phenols content in natural pistachios also correlated to the higher free-radical scavenging activity found by DPPH assay: NPRE and RPRE showed ICvalues of 0.85 (C.L. 0.725⁻0.976 mg mL) and 1.15 (C.L. 0.920⁻1.275 mg mL), respectively. Both NPRE and RPRE were active against6538P andspp. clinical isolates, with RPRE being the most active (MIC values ranging between 31.25 and 2000μg mL). The antimicrobial potential of pistachios could be used to identify novel treatments forskin infections.

Study Type : In Vitro Study

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