The use of alternative sources for fuel production has been gaining attention in the past years. Thus, role biodiesel seems to be crucial, as it can contribute sustainable economic growth developing countries. main raw materials are vegetable oils, obtaining fatty acid methyl (or ethyl) esters through transesterification with methanol ethanol). properties these natural feedstocks influence qual...

CYP1A1, a major phase I enzyme, plays an important role in the metabolism of polycyclic aromatic hydrocarbons and in the chemical activation of xenobiotics to carcinogenic derivatives. The phenolic antioxidant tert-butylhydroquinone (tBHQ), often used as a food preservative, is generally considered to act only as a mono-functional inducer of phase II enzymes, thereby exerting chemo-protection. ...

In contrast to the beneficial effects of tert-butylhydroquinone (tBHQ) as a food antioxidant, a number of studies have shown that chronic exposure to tBHQ may induce carcinogenicity. Therefore, we examined the ability of tBHQ to induce the cytochrome P450 1a1 (Cyp1a1), an enzyme known to play an important role in the chemical activation of xenobiotics to carcinogenic derivatives. A significant ...

ABSTRACTAn oxidation stability is very important for a long-term storage of biodiesel. Some physical (density and viscosity) chemical properties (acid value, iodine peroxide value) were analyzed to predict the biodiesel produced from Waste Cooking Oil (WCO). WCO one potential feedstocks in Indonesia, which large cooking oil consumer. Biodiesel was by transesterification process 60 oC temperatur...

Twenty-four organic compounds currently undergoing testing within cancer bioassays under the aegis of the U.S. National Toxicology Program (NTP) were submitted to the computer automated structure evaluation (CASE) and multiple computer automated structure evaluation (MULTICASE) system for predictions of activity. Individual predictions resulting from the NTP combined rodent, NTP mouse, Carcinog...