查询词典 hemicellulose

According to GB5888-89《Quantitative analysis method of China grass's chemical Content》, the composition of cotton-straw peer is analysed. The results show that the cotton-straw peer contained 2.36% of adipocere, 19.54% of water-soluble, 3.34% of pectin, 25.88% of hemicellulose, 25.32% of lignin, 23.65% of cellulose.

按照GB5888-89《苎麻化学成分定量分析方法》对棉秆皮成分进行测定，得出棉秆皮中含脂腊质2.36%，水溶物19.54%，果胶3.34%，半纤维素25.88%，木质素25.32%，纤维素23.65%。

The research results showed that the alcoholicity of derivative sugar from hemicellulose would be 40g/L (over 90％ of the theoretical output)after 48 hours′ fermentation with addition of some nutritional component.

试验研究表明，半纤维素衍生糖补充一定的营养成分，经过48h发酵，乙醇浓度可达40g/L，是理论产率的90％以上。

Results showed that:there were significant differences in the carbon to oxygen ratioamong various positions and processingconditions;lignin and abstracts mainly made up the surface of bamboo;high temperature drying resulted in the decomposition of volatile abstracts in the surface,whichindicated some structure of cellulose and hemicellulose,while the effects of processing with boracic acid were not apparent;the bamboo processed in hightemperature and with boracic acid showed decreasedfree hydroxide and activity at the same time;the amount of active free hydroxide of inner layer was higher thanthat of the outer.

结果表明：不同部位和不同处理条件下竹材表面的碳氧比有很大差异；竹材表面主要以木素和各种抽提物为主；高温干燥导致竹材表面易挥发的抽提物分解，使部分纤维素和半纤维素的结构特征得以显露，而硼酸处理效果不明显；高温处理和硼酸处理后竹材表面的自由羟基减少，活性降低；竹黄表面的活性自由羟基的数量高于竹青表面。

Result After pretreatment, the content of cellulose increased, while that of hemicellulose and lignin increased.

结果］预处理后，牧草的纤维素含量上升，半纤维素和木质素的含量下降。

The main component of ramie glial was pectin, hemicellulose and lignin; The single factor on degumming of ramie test was respectively analyzed with a high vigorous of pectinase KDN and TZ-888 compound enzyme （mainly xylanase and mannanase on the pH value, bath ratio, dosage of enzyme, metal ions, temperature and time.The orthogonal test of L9（34 were done by bath ratio, dosage of enzyme, temperature and time. The results showed that the best compages of KDN pectinase on degumming was 1∶12 of bath ratio,pH 8.6,1 mmol/L Mg2+,300 IU/g of KDN pectinase,35℃、6 h;the best compages of TZ-888 compound enzyme on degumming was 1∶18 of bath ratio,pH 4.0,1 mmol/L Ca2+, 500 IU/g of TZ-888 compound enzyme,45 ℃,6 h.

摘 要：本研究根据苎麻胶质的主要成分为果胶、半纤维素和木质素，用高活性的KDN果胶酶和TZ-888复合酶（主要是木聚糖酶和甘露聚糖酶）从pH值、浴比、酶用量、金属离子、温度、脱胶时间等方面进行单因素试验，然后选取影响显著的浴比、酶用量、温度，时间进行四因素三水平的脱胶试验，结果表明鲜麻采用KDN果胶酶脱胶最佳组合为浴比1：18，pH 8.6， 1 mmoL/L Mg2+，酶用量300 IU/g，温度35 ℃、时间6 h时处理，TZ-888复合酶脱胶最佳组为浴比1：12，pH 4.0， 1 mmoL/L Ca2+，酶用量500 IU/g，温度45 ℃，时间6 h进行脱胶为优化的试验条件。

The main component of ramie glial was pectin, hemicellulose and lignin; The single factor on degumming of ramie test was respectively analyzed with a high vigorous of pectinase KDN and TZ-888 compound enzyme （mainly xylanase and mannanase on the pH value, bath ratio, dosage of enzyme, metal ions, temperature and time.The orthogonal test of L9（34 were done by bath ratio, dosage of enzyme, temperature and time. The results showed that the best compages of KDN pectinase on dry ramie degumming was 1∶12 of bath ratio,pH 8.6,1 mmol/L Mg2+,20 IU/g of KDN pectinase,4℃、4h;the best compages of TZ-888 compound enzyme on degumming was 1∶18 of bath ratio,pH 4.0,1 mmol/L Ca2+, 300 IU/g of TZ-888 compound enzyme,40 ℃,5 h.

摘 要：本研究根据苎麻胶质的主要成分为果胶、半纤维素和木质素，用高活性的KDN果胶酶和TZ-888复合酶（主要是木聚糖酶和甘露聚糖酶）从pH值、浴比、酶用量、金属离子、温度、脱胶时间等方面进行单因素试验，然后选取影响显著的浴比、酶用量、温度，时间进行四因素三水平的脱胶试验，结果表明干苎麻采用KDN果胶酶脱胶最佳组合为浴比1：12，pH 8.6， 1 mmoL/L Mg2+，酶用量200 IU/g，温度45 ℃、时间4 h时处理，TZ-888复合酶脱胶最佳组为浴比1：18，pH 4.0， 1 mmoL/L Ca2+，酶用量300 IU/g，温度40 ℃，时间5h进行脱胶为优化的试验条件。

Hemicellulose content of corncob as offal of crops is relatively high for renewable plant that has already been found at present, which is about 35%-40%.

玉米芯作为农作物的废弃物，其中半纤维素的含量在已发现植物中是最高的，约为35%~40%。

The results showed that the water holding capacity, swelling and viscosity of hemicellulose B were higher than that of hemicellulose A.

对它们的性能进行了分析，研究表明，在持水力、膨胀力和粘度方面，半纤维素B均优于半纤维素A及纤维素。

Treatment by different methods, samples in original state, free of wax, free of lignin and hemicellulose were obtained. Then, they were attached on the surface of new cleaved mica and measured by tapping mode AFM. It was found that the main structure of straw cell wall is composed of buddles of cellulose microfibrils, and hemicellulose links them together to form a network structure, on the surface of the network lignin aggregate together to form a protect level. The AFM result consistency very well to the theoretical model of cell wall proposed by Vincent.

在第一章中，我们选择了来源丰富的细胞壁资源小麦秸秆作为研究对象，通过选择不同的样品制备方式，分别得到了细胞壁原始状态、脱除蜡质、脱除木质素及半纤维素的样品，利用Tapping mode AFM我们观测了样品表面的精细结构，发现细胞壁中纤维素、半纤维素及木质素之间存在与理论预测基本一致的关联结构。

The results showed: the content of dissoluble substance, pectin, hemicellulose, lignin and cellulose in straw is 16.57%, 7.82%, 19.4%, 18.4% and 21.01%, respectively; the decrease rates of pectin, hemicellulose and lignin in retied stems are 82.10%, 17.01% and 11.40%, respectively; the content of dissoluble substance in flax stems has dropped rapidly from 16.57% to 7.93% in the first two hours of fermentation; the increase rates of bacteria number in the second two hours is 588%, which is the biggest in this process; the content of pectin, hemicellulose and lignin in flax stems will be declining with the retting going on.

结果表明，亚麻原茎中水溶物、果胶、半纤维素、木质素和纤维素含量分别为：16.57%、7.82%、19.4%、18.4%和21.01%；脱胶完成时，果胶、半纤维素和木质素脱除率分别为82.1%、17.0%和11.4%；在接种后发酵2h内，亚麻麻茎中的水溶物由16.57%迅速降至7.93%；接种后发酵2h- 4h，脱胶菌活菌量的增加幅度最大，为5.88倍；麻茎中果胶、半纤维素和木质素的含量均随着时间的延长而降低。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失