English translation for "四糖"

tetrasaccharide
tetrose

Example Sentences:

	1.	Chi 1 degraded colloidal chitin both endolytically and exolytically with jv - acetylglucosamine , chitobiose and chitotriose as its products while a c - teminal 302 - amino - acid d eleted mutant had its degrading pattern shift to chitobiose , chitotriose and chitotetraose . further research showed a shifting of the minimal length of chitooligosaccharide needed for these two correlated proteins . in the case of full - length chitinase , it was chitotriose while with its truncated form , it turned out to be chitotetraose 进而对chi1和chi1 ~ -做了体外表达、纯化及功能的比较分析，首次揭示了几丁质酶潜在的几丁结合区对酶作用底物与产物的特异性影响，即chi1 ~ -仍具有较强活性，但其胶体几丁质降解产物为几丁二、三、四糖。
	2.	Fos contain mixture of gf2 , gf3 and gf4 sugars ( where g = glucose molecule and f = fructose molecule ) and a dp ( “ degree of polymerization ” ) of 3 - 5 ( “ neosugar ” ) , are not naturally - occurring but are enzymatically synthetized from sucrose by action of an enzyme from the fungus aspergillus niger 详细说明：是以蔗糖做底物，采用呋喃果糖苷酶转果糖基作用，在蔗糖分子上以（ 1 2 ）糖苷键上与1 - 3个果糖分子结合，形成的蔗果三糖（ gf2 ） 、蔗果四糖（ gf3 ） 、蔗果五糖（ gf4 ）属于果糖和蔗糖构成的直链杂低聚糖，在形成的产物中还有果糖、葡萄糖和未反应完全的底物蔗糖，采用色谱法除去单糖和双糖制得高纯度的低聚果糖。
	3.	The recombinants were constructed by transforming ppic9 a - xynb into p . pastoris gs115 . the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p . pastoris . in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity . the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1 . xynbb was gotten by deglycasylation of xynba , whose molecule weight returned to 23kd . we comparised the enzymatic properties of xynba expressed in p . pastoris , xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph , the optimal ph of xynb and xynba were both 5 . 2 , the optimal ph of xynbb was 5 . 0 ; the optimal temperature of xynb and xynba were both 60 c , while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883 . 88iu / mg and 832 . 5hu / mg respectively , which were both lower than 2814 . 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21 . 56 ( g / kg ) and 20 . 87 ( g / kg ) , while the km value of xynbb was 27 . 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg . min and 5329umol / mg . min respectively which were lower than 27623 umol / mg . min of xynb ; additionally all of the three enzymes did not display cellulase activity . they all had well resistance to pepsion and trypsin , and were not sensitive to metal iron , surface active agent and chelating agent . the analysis of different xylans enzymatic hydrolysate revealed : by xynba , that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose , which account for 68 . 43 % and 16 . 50 % respectively , additionally there was 11 . 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose , which account for 81 . 78 % and 11 . 55 % . the result indicated that this xylanase was a kind of 1 , 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides 进一步对xynba进行了脱糖基化处理得到xynbb ,其分子量恢复到23kd ，证明xynba是糖基化蛋白。通过对毕赤酵母重组表达的木聚糖酶xynba 、脱糖基化的木聚糖酶xynbb以及橄榄绿链霉菌a1所产原酶xynb之间酶学性质的比较发现：三种酶的最适ph差异不大， xynb和xynba均为5 . 2 ， xynbb为5 . 0 ； xynb和xynba的最适温度均为60 ， xynbb降为50 ：在耐热性上， xynba由于糖基化作用热稳定性明显高于未糖基化的xynb和xynbb ； xynba和xynbb的比活性分别为883 . 88iu mg和832 . 51iu mg ，明显低于原酶的比活2814 . 45iu mg ； xynb和xynba的km值相当，分别为21 . 56 ( g kg )和20 . 87 ( g kg ) ，而xynbb的km值较大为27 . 10 ( g kg ) ； xynba和xynbb的vmax相差不大，分别为4568 mol mg ? min和5329 mol mg ? min ，明显低于xynb的27623 mol mg ? min此外三种酶均无纤维素酶活性，对胃蛋白酶和胰蛋白酶有很好的抗性，且对作用环境中的各种离子、表面活性剂、螯合剂不敏感。通过对不同木聚糖的酶解产物的糖份分析发现：以桦木木聚糖为底物时，酶解产物主要为木三糖和木四糖，含量分别为68 . 43和16 . 50 ，另外还含有11 . 79的木二糖；以玉米芯木聚糖为底物时，酶解产物主要为木二糖和木三糖，含量分别为81 . 78和11 . 55 。

Similar Words：

"四探针法" English translation, "四探针技术" English translation, "四探针装置" English translation, "四塘" English translation, "四膛炉" English translation, "四糖（类）" English translation, "四糖；丁糖" English translation, "四套" English translation, "四套公寓住宅楼" English translation, "四特" English translation