首页> 美国卫生研究院文献>Toxicology Reports >Toxicological evaluation of two novel bitter modifying flavour compounds: 3-(1-((35-dimethylisoxazol-4-yl)methyl)-1H-pyrazol-4-yl)-1-(3-hydroxybenzyl)imidazolidine-24-dione and 3-(1-((35-dimethylisoxazol-4-yl)methyl)-1H-pyrazol-4-yl)-1-(3-hydroxybenzyl)-55-dimethylimidazolidine-24-dione
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Toxicological evaluation of two novel bitter modifying flavour compounds: 3-(1-((35-dimethylisoxazol-4-yl)methyl)-1H-pyrazol-4-yl)-1-(3-hydroxybenzyl)imidazolidine-24-dione and 3-(1-((35-dimethylisoxazol-4-yl)methyl)-1H-pyrazol-4-yl)-1-(3-hydroxybenzyl)-55-dimethylimidazolidine-24-dione

机译:两种新型苦味修饰香料化合物的毒理学评估:3-(1-((35-二甲基异恶唑-4-基)甲基)-1H-吡唑-4-基)-1-(3-羟基苄基)咪唑烷-2 4-二酮和3-(1-(((35-二甲基异恶唑-4-基)甲基)-1H-吡唑-4-基)-1-(3-羟基苄基)-55-二甲基咪唑烷-24 -二酮

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摘要

A toxicological evaluation of two novel bitter modifying flavour compounds, 3-(1-((3,5-dimethylisoxazol-4-yl)methyl)-1H-pyrazol-4-yl)-1-(3-hydroxybenzyl)imidazolidine-2,4-dione (S6821, CAS 1119831-25-2) and 3-(1-((3,5-dimethylisoxazol-4-yl)methyl)-1H-pyrazol-4-yl)-1-(3-hydroxybenzyl)-5,5-dimethylimidazolidine-2,4-dione (S7958, CAS 1217341-48-4), were completed for the purpose of assessing their safety for use in food and beverage applications. S6821 undergoes oxidative metabolism in vitro, and in rat pharmacokinetic studies both S6821 and S7958 are rapidly converted to the corresponding O-sulfate and O-glucuronide conjugates. S6821 was not found to be mutagenic or clastogenic in vitro, and did not induce micronuclei in bone marrow polychromatic erythrocytes in vivo. S7958, a close structural analog of S6821, was also found to be non-mutagenic in vitro. In short term and subchronic oral toxicity studies in rats, the no-observed-adverse-effect-level (NOAEL) for both S7958 and S6821 was 100 mg/kg bw/day (highest dose tested) when administered as a food ad-mix for either 28 or 90 consecutive days, respectively. Furthermore, S6821 demonstrated a lack of maternal toxicity, as well as adverse effects on fetal morphology at the highest dose tested, providing a NOAEL of 1000 mg/kg bw/day for both maternal toxicity and embryo/fetal development when administered orally during gestation to pregnant rats.
机译:两种新型苦味改良风味化合物3-(1-(((3,5-二甲基异恶唑-4-基)甲基)-1H-吡唑-4-基)-1-(3-羟基苄基)咪唑烷-2的毒理学评估,4-二酮(S6821,CAS 1119831-25-2)和3-(1-((3,5-二甲基异恶唑-4-基)甲基)-1H-吡唑-4-基)-1-(3-羟基苄基)-5,5-二甲基咪唑烷-2,4-二酮(S7958,CAS 1217341-48-4)已完成,目的是评估其在食品和饮料应用中的安全性。 S6821在体外进行氧化代谢,在大鼠药代动力学研究中,S6821和S7958均迅速转化为相应的O-硫酸盐和O-葡萄糖醛酸化物结合物。在体外未发现S6821是致突变或致灭性的,并且在体内未在骨髓多色红细胞中诱导微核。 S7958是S6821的紧密结构类似物,在体外也未发现突变。在大鼠的短期和亚慢性口腔毒性研究中,当以食品混合物形式给药时,S7958和S6821的无观察到的不良反应水平(NOAEL)为100 mg / kg bw /天(测试的最高剂量)分别连续28天或90天。此外,在最高测试剂量下,S6821表现出缺乏母体毒性以及对胎儿形态的不利影响,在妊娠期口服时,对母体毒性和胚胎/胎儿发育的NOAEL为1000 mg / kg bw /天。怀孕的老鼠。

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