Study of isolation and purification of lactase from aspergillus niger d 226乳糖酶分离纯化研究
Study of the relationship between urticaria diarrhea and lactase 药物性腹泻病与乳糖酶的关系研究
The influence of ca2 fe2 mg2 zn2 na and k on lactase activity in sucking piglets 对哺乳仔猪乳糖酶活力的影响
A similar , less severe , metabolic disorder is congenital lactase deficiency 类似的，病症略轻为一点的代谢紊乱疾病是乳糖分解酶素缺乏症。
Many asian adults are lactose intolerant , as a result of a lack of the digestive enzyme lactase in the gut 许多亚洲成年人有乳糖不耐受症，因为他们消化道中缺乏消化乳糖的乳糖酶。
The former was 0 . 475u / ml , and the later was 0 . 134u / ml . 2 . determination of the properties of lactase expressed in e . coli 原核表达乳糖酶的酶学性质测定制备原核表达乳糖酶的原酶液。
Some premature babies have a temporary form of lactose intolerance because their bodies are not yet producing lactase 一些早产的宝宝会暂时的有乳糖不耐受症状是因为他们体内还未开始分泌乳糖分解酶。
At present , most of lactases used in industry production come from kluyveromyces , aspergillus niger and aspergillus oryzae 目前，工业生产中使用的乳糖酶主要来源于乳酸克鲁维斯酵母菌、黑曲霉和米曲霉。
This disorder , apparent within 10 days of birth , occurs when brush - border lactase activity ( required for the digestion of lactose ) in the small intestine is low or absent at birth and is characterized by diarrhea and malabsorption 此病是由于宝宝出生时小肠内的乳糖分解酶素活性很低或没有活性，病症通常在宝宝出生10天内显现：拉肚子以及吸收不良。
Cloning and expression in e . coli of lactase . specific primers were designed according to the sequence of the beta - galactosidase gene from kluyveromyces lactis . klac gene was amplified by pcr and subsequently cloned 乳糖酶基因的克隆及原核表达以乳酸克鲁维斯酵母( kluyveromyceslactis )菌株k538的基因组dna为模板，设计引物，利用pcr获得乳糖酶基因klac ，经dna测序验证，得到克隆t1549 。
