The antioxidant capacity and antimicrobial activity of the essential oil of Moringa oleifera (Moringaceae) grown in Mozambique was investigated. The chemical composition was studied by means of GC and GC-MS analysis. Hexacosane (13.9%), pentacosane (13.3%) and heptacosane (11.4%) were the main components. Ultra High Performance Chromatography-DAD analysis detected the flavonoids quercetin (126 ...

Penicillium expansum , the causal agent of blue mold, is one of the most prevalent post-harvest pathogens, infecting a wide range of crops after harvest. In response, crops have evolved various defense systems to protect themselves against this and other pathogens. Penicillium -crop interaction is a multifaceted process and mediated by pathogen- and host-derived proteins. Identification and cha...

ABSTRACT During the infection of citrus fruit by Penicillium digitatum there is little evidence of a host defense response. This suggests that P. digitatum has the ability to suppress host defenses. The current study demonstrates that P. digitatum suppresses a defense-related hydrogen peroxide (H(2)O(2)) burst in host tissue. In contrast, the nonhost pathogen, Penicillium expansum, triggers pro...

Twenty-seven isolates of Penicillium expansum Lk. ex Thom obtained from Europe, Australia, and North America from seven different fruit hosts all produced patulin in culture. Six isolates were essentially nonpathogenic in apple fruits. In culture, patulin generally accumulated to much higher levels than in apple fruits. At all temperatures permitting fungus growth, patulin was produced. However...

The epiphytic bacterium Rahnella aquatilis, isolated from fruit and leaves of apples, was tested for antagonistic properties against Penicillium expansum and Botrytis cinerea on Red Delicious apple fruit. In "in vitro" assays, this bacterium inhibited completely the germination of P. expansum and B. cinerea spores, but it needed direct contact with the spores to do it. However the putative mech...

Blue mold is one of the most serious postharvest diseases in apples caused by Penicillium expansum. The purpose this study to determine effect ε-poly-L-lysine (ε-PL) on pathogenicity P. expansum and explore potential mechanism from perspective organic acid. investigates ε-PL treatment growth acid production vitro vivo. When concentration was 50 mg/L, inhibited decrease pH value delayed medium. ...

Mandarin fruits are one of the most popular among Citrus genus. They consumed because their nutritional and health benefits, as well pleasant taste smell. This paper describes identification characterization Penicillium expansum, isolated from molded mandarin fruits. The obtained isolates were cultivated on five media [Czapek Yeast Autolysate agar (CYA), MEA (Malt extract agar), Creatine sucros...

The " discovery " of penicillin by Fleming in 1928 and its dramatic production, urged on by the necessities of war, heralded a new era of therapeutics. It has changed the pattern of disease the prognosis of infections, the expectation of life, indeed, it has changed the whole human ecology. Before the discovery of penicillin, there were many early descriptions of the characteristics and propert...