


(11) The use of FA and its derivative, hexamethylenetetramine (HMT), which gradually decomposes to FA under acidic conditions as antimicrobial agents in food, raises questions about their potential chronic oral toxicity.(10) It decomposes to Yttrium 90 which has a half life of 62 hours.(9) Results showed that: catechols which are substrates of tyrosinase decompose fully after 24 hr in medium they are equally toxic for melanoma and non-melanoma cell lines their toxicity increases when they are preincubated in medium for 24 hr and 48 hr before addition of cells their toxicity is significantly reduced by addition of scavenger enzymes on the contrary, phenols not substrates of tyrosinase are stable in medium and their toxicity is not reduced by scavenger enzymes.(8) Little is known about the microorganisms decomposing the different test substances.(7) The compounds, characterized by 31P NMR, were shown to decompose to phosphate with a half-life of ca.(6) Under weakly basic conditions (pH 8.5), ptaquiloside decomposed into a conjugated dienone (considered to be the ultimate form), which was mutagenic in both strains.(5) Hydrogen peroxide is decomposed also by catalase (b).(4) Twenty out of the fifty strains decomposed technical oils.(3) The ester group in the N-acyloxymethyl derivatives was readily hydrolyzed by plasma enzymes to yield the N-hydroxymethyl amide, which subsequently decomposed to the parent amide.(2) Hydroperoxides from arachidonic acid can decompose via this mechanism to form leukotrienes of potential biological significance and can catalyze the epoxidation of proximal carcinogens to ultimate carcinogenic metabolites.(1) Following mass disasters and individual deaths, dentists with special training and experience in forensic odontology are frequently called upon to assist in the identification of badly mutilated or decomposed bodies.i.) To become resolved or returned from existing combinations to undergo dissolution to decay to rot.
DECOMPOSE DEFINITION FREE
t.) To separate the constituent parts of to resolve into original elements to set free from previously existing forms of chemical combination to bring to dissolution to rot or decay.
