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Members of the phthiocerol dimycocerosate family of waxes were extracted from Mycobacterium bovis BCG, Mycobacterium tuberculosis, Mycobacterium kansasii, Mycobacterium marinum, Mycobacterium ulcerans and a skin biopsy from a leprosy patient. The waxes were degraded by alkaline hydrolysis and the mycocerosic acids converted to pentafluorobenzyl ester.(More)
Anti-DPPH radical effect as well as anti-peroxide activity of o-hydroxyl, o-methoxy, and alkyl ester derivatives of p-hydroxybenzoic acid in a bulk fish oil system and its O/W emulsion were investigated. Electronic phenomena, intra- and/or intermolecular hydrogen bonds, interfacial properties, and chemical reaction of the solvent molecules with phenolic(More)
Concentrations of potassium, calcium, magnesium, manganese, iron, nickel, copper, zinc, lead, cadmium, strontium and rubidium were determined in the flesh of six marine fish species from the Bay of Bengal. Analytical quality was determined by analysis of standard reference material MA-A-2 (TM), Fish Flesh Homogenate, from IAEA (International Atomic Energy(More)
The anti-DPPH radical effect as well as anti-peroxide activity of gallic acid, methyl gallate, and α-tocopherol in a bulk Kilka fish oil and its oil-in-water emulsion stabilized by soy protein isolate at 55°C were investigated. Gallic acid with the lowest hydrophobicity (log P=-0.28) was found to be the most active antiradical agent (IC50=29.5 μM), followed(More)
During 16 h heating at 180 °C, the oxidative stability (OS) of virgin olive oil (VOO) as affected by the same concentrations (200 ppm) of tertiary-butylhydroquinone (TBHQ) and unsaponifiable matters of bene kernel (UKO) and hull (UHO) oils in terms of the inhibitory effect on the formation of conjugated diene hydroperoxides (OS(CDV)) and off-flavor carbonyl(More)
Extraction yield, phenolics content, and antioxidant activities of the materials extracted conventionally and/or ultrasonically from Bene hull by a number of aqueous and organic solvents were investigated. Higher extraction yields in general were obtained by the less polar solvents (12.1-47.5%). Polar protic solvents exhibited the highest content of total(More)
The chemical and qualitative characteristics of P. khinjuk hull oil (PKHO), P. atlantica hull oil (PAHO), and Sesamum indicume L. cv. Dezful seed oil (SISO) were compared. The high values of wax and tocopherol compounds and low values of the saponification number of PKHO were interesting. PKHO was also unique due to its high content of tocotrienols (92.6%(More)
Diacyl phthiodiolone A and phenolphthiodiolone A lipids were isolated from two strains of Mycobacterium ulcerans. The diol units of the phthiodiolone A and phenolphthiodiolone A components were shown to have erythro stereochemistry by infrared spectroscopy and proton nuclear magnetic resonance of an acetal derivative. This stereochemistry is shared only by(More)
We present the fetal MRI characteristics of exencephaly, a rare malformation of the cranium. The fetus was initially misdiagnosed as anencephaly at 14 weeks of estimated gestational age (EGA) and later mislabeled as acrania at 20 weeks of EGA by ultrasound. A confirmatory magnetic resonance imaging (MRI) at 29 weeks of EGA demonstrated findings consistent(More)