The essential oils were analysed by gas chromatography and gas chromatography-mass spectrometry.

The antioxidant ability was measured using a free radical scavenging activity assay using 2,2-diphenyl-1-picrylhydrazyl (DPPH), a thiobarbituric acid reactive substances (TBARS) assay, a deoxyribose assay for the scavenging of hydroxyl radical, an assay for site-specific actions and a 5-lipoxygenase assay. Antibacterial activity was determined by the agar diffusion method. 1,8-Cineole, -pinene and camphor were the dominant components of all the essential PF-03084014 oils. The different hydrodistillation times did not affect the oil yield nor the relative amount of the oil components. The time of hydrodistillation influenced the antioxidant activity. With the DPPH method, the oils isolated for 2 and 3 h were stronger free radical scavengers,

while with the TBARS method, the highest antioxidant values were obtained in the oils isolated selleck products for 30 min, 2 and 3 h. Hydroxyl radical scavenging and lipoxygenase activity assays showed the best results with oils isolated for 1 and 3 h. With the deoxyribose method, sage oils at concentrations 1000 mg L-1 showed better activity than mannitol. The essential oil of S. officinalis showed very weak antimicrobial activity.”
“A new alkaloid was isolated from the ethyl acetate extract of the culture of a termite-associated Streptomyces koyangensis BY-4. The structure of 1 was elucidated by using MS, NMR, electronic circular dichroism data, and computational approaches. Compound 1 showed weak antimicrobial activities against a panel of test microbes.”
“The aim of this study was to determine the concentration of oleocanthal in olive pomace waste and compare this to its concentration in extra-virgin olive oil (EVOO). The concentration of oleocanthal in freshly pressed EVOO and its subsequent waste was

analysed at early, mid and late season harvests. Oleocanthal concentrations were quantified QNZ using high-performance liquid chromatography-mass spectrometry. In oil, oleocanthal concentration was as follows: 123.24 +/- 6.48 mg kg-1 in early harvest, 114.20 +/- 17.42 mg kg-1 in mid harvest and 152.22 +/- 10.54 mg kg-1 in late harvest. Its concentration in waste was determined to be: 128.25 +/- 11.33 mg kg-1 in early harvest, 112.15 +/- 1.51 mg kg-1 in mid harvest and 62.35 +/- 8.00 mg kg-1 in late harvest. Overall, olive pomace waste is a valuable source of oleocanthal.”
“Expert Rev. Proteomics 10(2), 127-129 (2013) American Society for Mass Spectrometry Sanibel meeting on top-down mass spectrometry St Pete Beach, FL, USA, 24-27 January 2013 Top-down mass spectrometry involves analysis of intact proteins, typically using electrospray ionization, as multiple charging enhances dissociation and thus identification by comparison of precursor and product ion masses with protein sequence databases.