期刊论文

中文

南方农业学报

2095-1191

2022

53

2

299-313

10.3969/j.issn.2095-1191.2022.02.003

贵州省科技支撑计划项目（黔科合支撑[2021]一般188号）； 广西科技攻关计划项目（桂科攻1598006-5-3）； 贵州大学***项目（贵大人基合字[2019]25号）； 湖南省研究生科研创新项目（CX2016B284）～～；

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【目的】评价茶组植物新资源元宝山茶(Camellia yungkiangensis var.Yuanbaoshanica)的饮用安全性,为该资源的高效开发利用提供科学依据。【方法】以元宝山茶资源的鲜叶固定样和红茶工艺样为材料,参照食品毒理学安全性评价程序,通过经口急性毒性试验、小鼠骨髓细胞微核试验、Ames试验和慢性喂养(30 d)亚急性毒性试验对其毒理学安全性进行评价。【结果】元宝山茶具有较高的茶多酚、可溶性糖及可可碱含量,但咖啡碱和游离氨基酸含量相对较低。元宝山茶鲜叶固定样提取物对ICR小鼠的半数致死剂量(LD_(50))为5.123 g/kg,其红茶工艺样提取物对小鼠的LD_(50)为7.573 g/kg;元宝山茶(红茶工艺样提取物)各剂...

【Objective】To evaluate the drinking safety of the new resource—Camellia yungkiangensis var.Yuanbaoshanica in Sect.Thea plant,so as to provide scientific basis for the efficient development and utilization of the resource.【Method】The fresh leaf fixed samples and black tea samples of the resource were used as materials,and the food toxicological safety evaluation program was taken as referenced to evaluate the toxicological safety of the resource through oral acute toxicity test,mouse bone marrow cell micronucleus test,Ames test and 30-day c...