Sudden oak death, caused by Phytophthora ramorum, has resulted in high levels of coast live oak (CLO) mortality. However, some CLO survive in areas with high disease pressure and may thus be resistant. We tested the hypothesis that such field-resistant trees contain constitutively higher levels of phenolics than susceptible trees. Phloem was sampled from the trunks of two groups of trees (one p...

Background: The antioxidant components have been identified in some pine species. Antioxidant properties of proantocyanidins reduce free radicals induced by DNA fragmentation and lipid proxidation and also proanthocyanidines could curb lipid peroxidation. Objective: In this study, we analyzed different parts of Pinus eldarica (bark, seed and needle) and assessed their antioxidant contents. ...

The phytotoxicity activity of EtOAc extract obtained from Agaricus litoralis showed high on tomato (Lycopersicon esculentum L.) leaves. A well-known phytotoxic metabolite: tyrosol [2-(4-hydroxyphenyl)-ethanol], was isolated and identified A. by spectroscopic methods. Phytotoxic tested seven agrarian plants: eggplant (Solanum melongena L.), fig (Ficus carica apricot (Prunus armeniaca peach persi...

Since the mid 1990s, Phytophthora ramorum has been responsible for the widespread mortality of tanoaks, as well as several oak species throughout California and Oregon forests. However, not all trees die, even in areas with high disease pressure, suggesting that some trees may be resistant to the pathogen. The apparent resistance to P. ramorum infection of some individuals within coast live oak...

background: the antioxidant components have been identified in some pine species. antioxidant properties of proantocyanidins reduce free radicals induced by dna fragmentation and lipid proxidation and also proanthocyanidines could curb lipid peroxidation. objective: in this study, we analyzed different parts of pinus eldarica (bark, seed and needle) and assessed their antioxidant contents. meth...

Tyrosol is a phenolic found in extra virgin olive oil (EVOO). In Maltese monocultivar EVOO, it was present at concentration of 9.23 ppm. The HL-60 acute myeloid leukaemia cell line, which can be differentiated to both monocytes and neutrophils, exposed tyrosol this analysed for evidence differentiation effects cytotoxicity. polyphenol induced 1.93-fold increase cellular oxidative activity (p-va...

The efficiency of nanofiltration to purify the tyrosol present in olive mill wastewaters (OMWWs) has been studied. similar molecular weight and sucrose existing this kind by-products restricts discrimination between both molecules through a membrane process, but interest phenolic compounds be applied cosmetics pharmacology greatly motivates its recovery at highest purity possible. Thus, two dif...

Mediterranean diet is almost synonymous to the healthy lifestyle and nowadays. Some of major components are products olive tree, fruits oil, which classified as medical foods, due their nutraceutical benefits protective properties against cancer, cardiovascular diseases, age-related neurodegenerative disorders other diseases. The key contributors these phenolic compounds such hydroxytyrosol, ty...

Olive mill wastewaters (OMW) are rich in water-soluble polyphenolic compounds that show remarkable antioxidant properties. In this work, the recovery yield of compounds, such as hydroxytyrosol and tyrosol, as well as total phenols (TPh) from real OMW was investigated. Antioxidants were recovered by means of liquid-liquid solvent extraction. For this purpose, a laboratory-scale pilot unit was es...