培植牛黄为牛科动物牛Bos taurus domesticus Gmelin的活体胆囊中培植的干燥胆结石。手术或宰杀时，带核取出，除去胆汁及粘液，干燥，去核。培植牛黄为不规则片块或粉末，棕黄色或黄褐色。质较疏松，间有少量灰白色疏松状物和乌黑硬块。气微腥，味微苦而后甘，有清凉感，嚼之易碎，不粘牙。
运用化学发光技术研究了培植牛黄的活性氧自由基。
The active oxygen radicals of cultured bezoar have been studied by chemiluminescence.
本文还比较了胆汁沉淀物与培植牛黄的超微结构及组织化学性质，发现二者基本一致。
Sediment was observed and compared with cultured calculus bovis, both of them had the similar ultrastructure and histochemistry properties.
用比较药理学研究方法，对培植牛黄与天然牛黄的主要药效和毒性在同等条件下进行了比较研究。
By means of comparative pharmacological study, the main pharmacodynamics and toxicity of cultured Calculus Bovis and natural Calculus Bovis were compared under the same conditions.
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