the individual effects of cadmium concentrations (0, 0.005, 0.05and 0.5 mg. l-1) on the growth(cell number and chlorophyll content) and beta-carotene synthesis of two strains (iranian and australian) ofgreen algae d.salina have been studied for a duration of 36 days. the effects of these cadmiumconcentrations on the amount of cell magnesium and calcium have also been evaluated. an increase inca...

Excited-state properties of aryl carotenoids, important components of light harvesting antennae of green sulfur bacteria, have been studied by femtosecond transient absorption spectroscopy. To explore effects of the conjugated aryl group, we have studied a series of aryl carotenoids with conjugated phi-ring, chlorobactene, beta-isorenieratene and isorenieratene, and compared them with their non...

Carotenoid and vitamin C intakes, assessed by FFQ, have been positively associated with plasma concentrations in different populations. However, the influence of BMI on these associations has not been explored in detail. We explored in a cross-sectional study the relation between dietary carotenoid and vitamin C intakes, using a 135-item FFQ, with their plasma concentrations by BMI categories i...

an on-line uv-hplc / apci-ms (atmospheric pressure chemical ionization) tandem by a platinium c18 column with an isocratic solvent system after optimizing was applied to the separation and the identification of different carotenoids including astaxanthin, canthaxanthin, apocarotenoic ester, torularhodin and beta carotene. this method was used to identify particular carotenoids produced by newly...

A variety of 4-aryl- and 4-alkyl-3-(substituted benzylthio)-4H-1,2,4-triazoles were prepared and evaluated for their bleaching activity by the lettuce seedling test. Among the series of tested compounds, 4-(3-fluorophenyl)-3-(4-trifluoromethylbenzylthio)-4H-1,2,4-triazole (39) exhibited the highest bleaching activity, causing complete bleaching symptoms at 10 microM. In the dark condition, comp...

OBJECTIVE To study whether retinolpalmitate, beta-carotene or lycopene could prevent liver cirrhosis induced by thioacetamide in rats. METHODS In the control group liver cirrhosis was induced in male Wistar rats by intraperitoneal injections of TAA 200 mg/kg for 12 weeks. The three study groups received in addition to TAA either beta-carotene, lycopene or retinopalmitate by gavage through an ...

The aim of this study was to compare the contents of the main biochemical compounds and the antioxidant capacity of five Spanish olive oils by four different antioxidant tests and to find out the most valuable oil for disease preventing diets. Fatty acids, sterols and individual antioxidant compounds in Arbequina, Hojiblanca, Extra Virgin, Picual and Lampante Spanish olive oils were determined....