水杨苷
- 与 水杨苷 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The vitro methods include autoagglutination test,calcium dependency test,pyrazinamidase test,salicin fermentation,esculin hydrolysis,Congo red colony test and virulence plasmid.
体外法包括自凝试验、依钙试验、吡嗪酰胺酶试验、水杨苷发酵、七叶苷水解、刚果红菌落试验和毒力质粒。
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These two isolates presented typical characteristics of Streptococcus iniae with gram-positive cocci in chains, catalase negative and beta-hemolytic, growth under 10℃ and non-growth up 45 ℃, hydrolyzation of esculin and arginine, Voges-Proskauer, urease, and hippurate tests negative, fermentation of glucose, salicin, sucrose and starch, non-fermentation of arabinose, inulin, lactose, melibiose, raffinose and sorbitol.
实验结果表明,两菌株具有典型的海豚链球菌特性:在显微镜下为球形细胞,呈长短不一的链状排列,革兰氏染色阳性:在血琼脂平板上显示β溶血;1O℃生长,45℃不生长;接触酶阴性;水解七叶苷、精氨酸,VP试验、脲酶和马脲酸试验阴性;发酵葡萄糖、水杨苷、蔗糖和淀粉,不发酵阿拉伯糖、菊糖、乳糖、蜜二糖、棉子糖和山梨醇等。
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The tree contains a chemical called salicin. In the eighteen hundreds
这种树包含着一种名为水杨苷的化学物质。
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The tree contains a chemical called salicin. In the eighteen
这种树包含着一种名为水杨苷的化学物质。
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Making standard curve by salicin enzyme activity ,we can get the formula of relative and absolute enzyme activity ,then transform into absolute enzyme activity of glucose.
通过水杨苷法作葡萄糖标准曲线,能得到相对酶活与绝对酶活的换算公式,进而得到绝对酶活。
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The tree contains a chemical called salicin.
这种树包含着一种名为水杨苷的化学物质。
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A spectrophotometric method to measure the concentration of salicin in the water extract of willow bark was established based on the HCLO4 - Vanilin staining reaction with λmax of 520 nm.
以水为溶剂,50℃下超声提取柳树茎皮中的水杨苷,采用香草醛分光光度法,在吸收波长520nm下,建立水杨苷含量的测定方法。
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The ancient Greeks, for example, treated pain with a tea made by boiling willow leaves and bark, a tea modern scientists now know contains salicin, a precursor of acetylsalicylic acid—aspirin.
例如,古希腊人用柳叶和柳树皮煮成的茶水来止痛。现代科学家已经了解到,这种茶里面含有水杨苷成分,就是乙酰水杨酸——阿司匹林的前身。
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In this research, the activities of CWDE were measured by saccharifying according to the theory that red-brown amino compounds were produced when 3, 5-dinitro salicylic acid and aldehyde were heated together. And the testing conditions were made clear. The activity of Cx should be tested with optimal temperature of 50℃, optimal pH of 4.8, incubation time of 30 min, and optimal substrate of 0.6% CMC-Na. Due to the heat-libality, Cx should be sterilized more than 10 min. The testing conditions of the activity ofβ-G were almost the same with Cx except the substrate of 0.5% salicin and the sterilization time of more than 15 min.
主要取得了一下成果:(1)明确了条锈菌细胞壁降解酶活性测定的条件:羧甲基纤维素酶活性的测定条件为50℃,pH4.8,反应时间30min,底物浓度为0.6%羧甲基纤维素钠,以DNS法测定,且失活酶液的灭活时间应大于10min;β-葡萄糖苷酶活性的测定条件为:50℃,pH4.8,反应时间30min,底物浓度为0.5%水杨苷,以DNS法测定,且失活酶液的灭活时间应大于15min;果胶酶活性的测定条件为:50℃,pH4.8,反应时间1h,底物浓度为0.25%果胶,以DNS法测定,且失活酶液的灭活时间应大于10min。
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The purified recombinant enzyme had optimal reaction conditions at pH 5.0 and 80 °C, was stable between pH 4.0 and pH 6.0. The enzyme had residual activity of 60% at 95 °C for 6 h at pH 5.0, thus has considerable potential in industrial applications. The specific activities of the enzyme to salicin, p-Nitrophenyl β-D-glucopyranoside, p-nitrophenyl β-D-xylopyranoside and p-nitrophenyl α-D-glucopyranoside were: 57500 U/mg, 1632 U/mg, 109 U/mg, and 39 U/mg, respectively, the specificity of salicin was the highest, p-nitrophenyl β-D-glucopyranoside followed, no activities to xylan and arabinofuranoside.
重组 Tm-SIGlA 的酶学性质研究表明:该酶最适作用温度和最适作用 pH 分别为80 ℃和 pH 5.0;在 pH 4.0-6.0 之间酶活性稳定,95 ℃保温 6 h 残留活性为 60%,具有非常高的热稳定性;在所测定的底物中,该酶对水杨苷、对硝基苯酚-β-D-葡萄糖苷(p-Nitrophenyl β-D-glucopyranoside)、对硝基苯酚-β-D-木糖苷(p-Nitrophenyl β-D-xylopyranoside)和对硝基苯酚-α-D-葡萄糖苷(p-Nitrophenyl α-D-glucopyranoside)的比酶活分别为:57500 U/mg、1632 U/mg、109 U/mg 和39 U/mg,作用水杨苷的专一性最强,其次为对硝基苯酚-β-D-葡萄糖苷,没有检测到对木聚糖和阿拉伯糖苷的活性。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。