半乳糖酶

So, lactase could be applied in the preparation of low-lactose milk and galactooligosaccharides.

因此，乳糖酶可用于制备低乳糖牛奶和低聚半乳糖。

An inherited metabolic disorder characterized by the deficiency of an enzyme that is necessary for the metabolism of galactose.

半乳糖症一种遗传的代谢紊乱，因缺乏对半乳糖新陈代谢所必需的酶引起。

Coil O85 antigen contained 8 varieties of genes, including UDP-Nacetylglucosamine-2-epimerase gene (f1). UDP-galactopyranose mutase gene, glycosyl transferase genes (f3, f5, f6, f8), O-antigen transferase gene and O-antigen polymerase gene, in which two genes, wzx and wzy and 4 pairs of primers were identified to be specific to E.

发现8个开放阅读框架并确定功能，分别为：UDP-N-乙酰葡萄糖－2-异构酶基因，吡喃型UDP-半乳糖变位酶基因，糖基转移酶基因（orf3、orf5、orf6和orf8），O-抗原转运酶基因和O-抗原聚合酶基因。

Semiquantitative PCR analysis revealed that the levels of pectate lylase and β-galactosidase gene (MA-gal1) transcript were related with the banana fruit ripening and softening.

通过半定量PCR分析表明，所克隆的β-半乳糖苷酶基因（MA-gal1）和果胶裂解酶基因的表达与果实成熟软化相关。

The technics of producing membrance for glucose and sucrose detecting were optimized. The best condition is: adding fragmentation liquid of the yeast which is breaked up in 450 times for three times, betaking mix enzyme which is prepared with 0.0036g glucose oxidase and 0.5ml kluyveromyces lactis β-galactosidase and 1.5ml distilled water, immobilizing mix enzyme through 2% glutaric dialdehyde for 1 hour.

优化了葡萄糖和蔗糖酶膜制作的工艺条件，结果表明，在以下条件：3层破碎液次数450次的破碎液，浓度配比为0.0036g葡萄糖氧化酶和0.5ml半乳糖苷酶用1.5ml蒸馏水溶解的混合酶液，固定混合酶的戊二醛浓度为2%，时间为1小时，酶的固定效果最为理想。

The study was conducted to investigate the effects of heat treatment on flesh leatheriness of cold-stored loquat fruits and the possible mechanisms. Freshly harvested loquat fruits were pre-treated with hot air at 38℃ for five hours and then stored at (1±1)℃ for 35 days. Fruits firmness, extractable juice rate, the activities of phenylalanine ammonium-lyase, peroxidase, polyphenol oxidase and polygalacturonase that were related to flesh leatheriness, and contents of lignin and pectin were analyzed at seven-day intervals during storage.

为阐明热处理对冷藏枇杷果实木质化败坏的影响及其机理，该研究先将枇杷果实用38℃热空气处理5 h，然后在(1±1)℃下贮藏35 d，并每隔7 d测定果实硬度、出汁率、苯丙氨酸解氨酶、过氧化物酶、多酚氧化酶和多聚半乳糖醛酸酶等木质化相关酶活性及果胶和木质素含量的变化。

The activity of polygalacturonase,PME,cellulase and the soluble pectin content of MA stor-age were significantly lower than those of control; while the flesh firmness,cellulose content ,protopectin content were sig-nificantly higher than those of control. Results showed that MA storage retarded the softening process of mulberry fruit.

研究了在(2±1)℃下，MA贮藏对桑果细胞壁组分和水解酶活性的影响，结果表明：MA贮藏可抑制桑果呼吸强度和乙烯释放量，MA贮藏桑果的纤维素酶、果胶甲酯酶和多聚半乳糖醛酸酶等细胞壁水解酶活性和水溶性果胶含量显著低于对照，而果实的纤维素和原果胶含量显著高于对照，从而延缓桑果的软化。

In plant,the enzymes of RFO,such as galactinol synthase,myo inositol-1-phosphate synthase, raffinose synthase and stachyose synthase,are linked with the RFO pathw.

寡糖代谢是一个复杂的调控体系，其中肌醇-1-磷酸合成酶、肌醇半乳糖苷合成酶、蔗糖合成酶、棉子糖合成酶、水苏糖合成酶和毛蕊花糖合成酶等参与了棉子糖系列寡糖的生物合成过程。

For the E. coli lac operon, write the partial diploid genotype for a strain that will produceβ-galactosidase constitutively and permease by induction.

以大肠杆菌的乳糖操纵元为例，请写出一菌株的部分二倍体基因型：β-半乳糖苷酶是组成型表达的，透过酶是诱导表达的。

Galactosidase,galactose permease,and thiogalactoside transacetylase,respectively,preceded by an operator siteand a promote .

半乳糖甘透性没6和硫代半乳糖甘酰基转移酶，结构基因之前有操纵基因位和启动子。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷