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The wheat straw contains abundant cellulose and pentosan .

麦草含大量的纤维素和聚戊糖,其中的纤维素在纤维素酶的作用下分解生成葡萄糖和纤维二糖。

Applying AMMI model to analyse the root production, sugar production and sugar stability of six sugar beet varieties, and these three value and the corresponding value of the species stability parameters as an indicator, the tested varieties are evaluation.

应用AMMI模型对6个甜菜品种的块根产量、含糖率和产量糖进行稳定性分析,并以这3个性状的表型值和相应的品种稳定性参数为指标,综合评价供试品种。

Spraying with chitosan of different concentration significantly increased the content of chlorophyll ,anthoxanthin ,chlorogentic acid, polyphenal ,soluble protein and total soluble sugar of Broccoli flowers. 40 mg L-l chitosan showed the most remarkable effet,compared to control, the content of chlorophyll ,anthoxanthin ,chlorogentic acid, total soluble sugar and soluble protein of treated Broccoli flowers increased by 64.4%,282.5%,35.6%,16.2% 22.7% respectively.PAL and PPO are key enzymes in synthesize of phenolics.No relation was found between phenolics synthesize and PAL activity in Broccoli flowers,but it showed positive relation between phenolics synthesize and PPO activity.

研究表明,本研究中,不同浓度几丁聚糖喷施对青花菜花球的叶绿素、类黄酮、绿原酸、多酚总量、可溶性蛋白及可溶性总糖的含浙江大学硕卜学位论文(2004)量有显著增加,其中以浓度为40mgL一'影响最为显著,花球中的叶绿素、类黄酮、绿原酸、可溶性总糖、可溶性蛋白分别较对照提高64.4%、282.5%、35.6%、 16.2%、22.7%,苯丙氨酸解氨酶、多酚氧化酶是酚类物质合成中关键酶,花球内酚类物质合成与苯丙氨酸解氨酶的活性没有一定的相关性,而与多酚氧化酶的活性呈正相关。

Methods:The total RNA was extracted from mouse RAW264.7 cells stimulated by LPS.The sequence including the whole length of HMGB1 was amplified by RT-PCR and inserted into pMD-19T.The combinant vector was used as a template for PCR which was cloned into vector pMD-19T,then subcloned into expression vector pET-26b with pelB signal sequence and His-Taq sequence.After transforming E.coli BL21(DE3) and four hours induction by IPTG,HMGB1 expression confirmed by SDS-PAGE and the purification was performed by Ni2+-chelate affinity chromatograph.

脂多糖刺激后的RAW264.7细胞,提取总RNA,经RT-PCR扩增出含HMGB1的目的片段,克隆于pMD-19T载体,再亚克隆至含有pelB引导肽及His-标签肽的高效表达载体pET-26b,转化大肠杆菌BL21(DE3),经IPTG诱导后行SDS-PAGE鉴定目标蛋白表达,用镍鳌合琼脂糖凝胶亲和层析法分离纯化含His-标签肽的目的蛋白。

Methods:The total RNA was extracted from mouse RAW264.7 cells stimulated by LPS.The sequence including the whole length of HMGB1 was amplified by RT-PCR and inserted into pMD-19T.The combinant vector was used as a template for PCR which was cloned into vector pMD-19T,then subcloned into expression vector pET-26b with pelB signal sequence and His-Taq sequence.

脂多糖刺激后的RAW264.7细胞,提取总RNA,经RT-PCR扩增出含HMGB1的目的片段,克隆于pMD-19T载体,再亚克隆至含有pelB引导肽及His-标签肽的高效表达载体pET-26b,转化大肠杆菌BL21(DE3),经IPTG诱导后行SDS-PAGE鉴定目标蛋白表达,用镍鳌合琼脂糖凝胶亲和层析法分离纯化含His-标签肽的目的蛋白。

Four new salicylaldehyde derivatives with a glucose or mannose moiety were synthesized with 2-tert-butylphenol or 4-tert-butylphenol as the starting material, followed by the formylation, chloromethylation, nucleophilic substitution reaction with the desired carbohydrate. The salicylaldehyde derivatives condensed with ethylenediamine to give the Schiff bases, which coordinated with Mn to afford four novel sugar-based Salen Mn complexes.

首先,分别以2-叔丁基苯酚和4-叔丁基苯酚为起始原料,经过甲酰化反应、氯甲基化反应、和糖类衍生物的亲核取代反应制得了四种新型并入葡萄糖基或甘露糖基的水杨醛衍生物,将它们与乙二胺缩合生成希夫碱配体,得到的配体与过渡金属Mn~(3+)配位制备出四种新型含糖基的Salen Mn配合物。

As time of hydrolyzation went on,cellulose began to be hydrolyzed to glucose while xylose kept on decomposing.

发现采用甲酸/盐酸水解体系能有效水解麦草中的半纤维素,含HCl 10%的水解体系在65℃水解麦草0.5h可实现麦草中聚戊糖的充分水解,木糖的得率达到98%。

So far this method has been successfully applied to HPLC analysis of simple monosaccharides. A baseline separation of five monosaccharides was obtained under optimized isocratic condition. Both UV detector and electrospray ionization-Mass spectrometry were selected to determine the monosaccharide composition in real samples.

结合建立的衍生化方法与高效液相色谱HPLC,优化分离条件,并选择紫外和电喷雾—离子阱质谱两种检测模式对实际样品中所含的单糖进行分离分析,建立了5种单糖的常规定性定量方法。

The standard explanation is that energy-containing liquids are less satiating than are solid foods.

在美国人们常将含糖或加糖的饮料的摄入量与肥胖患者的患病率上升联系在一起。

The varieties 2001-10 and TY309 had a high sugar content and good stability, they may be used in planting high sugar content variety areas.

品种2001-10、TY309的含糖率水平较高,并且具有很好的稳定性,在需要高糖品种的地区,应优先加以利用。

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