The protection effect of several cryoprotectants on the freeze dried lactobacillus starter was studied by measuring the viable cells ' number and activity of lactate dehydrogenase after the starter was activated in liquid media 摘要通过对不同种类不同浓度的冻干发酵剂复水后活菌数和乳酸脱氢酶的测定，比较了几种冻干保护剂对瑞士乳杆菌的保护效果。
Gfp can be expressed in the host enterococcus facecalis and lactobacillus plantarum we isolated using the expression vectors we constructed the expression level depends on the nisin concentration to some extent Ow洲poi114no例烃们表达载体在我们分离到的受体菌efqecalis和l plantarum中能够表达绿色荧光蛋白oppx表达的水平依赖于一定范围浓度的nistn诱导。
Results it was found that the types and quantities of metablic organic acid of all anaerobes but two strains of lactobacillus were coincident with the standard of identification of anaerobes , and the total coincidence was 97 . 67 % 结果60株细菌中，有48株细菌测到所有代谢有机酸， 10株细菌测到主要代谢有机酸， 2株细菌测到不应有的代谢有机酸，总符合率为97 . 67 。
The results show that a product with fine quality and pleasant flavour can be obtained from hedgehog hydnum juice 10 % , sugar 7 % , powdered milk 4 % and streptococcus thermophilus and lactobacillus bulgaricus ( 1 : 1 ) 3 % 试验结果表明:猴头汁添加量为10 % ,加糖量为7 % ,奶粉添加量为4 % ,发酵剂(保加利亚乳杆菌和嗜热乳酸链球菌1 : 1 )接种量为3 % ,可制得质地细腻、风味优良的猴头汁酸乳。
Mouse pups with rotavirus infection who were administered the vhh - expressing lactobacilli had " markedly shortened disease duration , severity and viral load , " whether the transformed lactobacillus was delivered fresh or freeze - dried 不管改构的乳酸菌以是新鲜还是以冻干方式，轮状病毒感染的幼鼠给予表达vhh的乳酸菌后都“显著缩短疾病进程、降低严重程度和减少病毒感染范围” 。
New york ( reuters health ) dec 19 - lactobacilli transformed to carry heavy - chain antibody fragments appear to protect against rotavirus infection , swedish investigators report in the december 1st issue of the journal of infectious diseases 纽约（路透社健康版） 12月19日瑞典研究人员首次在12月传染病杂志上发表报告称：经改造携带重链抗体片断的乳酸菌有抗轮状病毒感染的作用。
The reason of such difference is not clear at present and may relate to the low level of antigen expression in lactobacillus , which suggests that it is necessary to select diff erent strains of lab and match different expression vectors as oral vaccine vehicles 这种不同的原因目前仍然不清楚，可能与抗原在乳杆菌中低水平表达有关。这暗示筛选不同的乳酸菌菌株作为口服疫苗载体和匹配不同的表达载体的必要性。
And the transformation efficiency of enterococcus faecalis is obviously higher than that of lactobacillus plantarium by pulse electroporation with different voltages , which suggests th at the two strains of lab have different usage in the research of genetic engineering of lab 利用不同的电压进行脉冲转化两株乳酸菌，发现两株菌的转化效率和电压有对应的正相关，并且粪肠球菌的转化效率明显比植物乳杆菌高。
The protective efficacy on lactobacillus casei shirota of four cryoprotectants , including skim milk , glucose , sodium glutamate and fructose , was studied by viable cell count and lactate dehydrogenase activity analysis of rehydrated starter made by freeze - drying l . casei shirota 摘要将活化后的干酪乳杆菌代田株制成冻干发酵剂，通过对其复水后活菌数和乳酸脱氢酶的测定，比较了脱脂奶、葡萄糖、谷氨酸钠、海藻糖4种冻干保护剂对干酪乳杆菌代田株的保护效果。
