cellulase 中文意思是什麼

Present situation of research on microbial cellulase

微生物纖維素酶的研究現狀

Fermentation conditions for cellulase production by rhizopus sp. tc

1產酶條件的研究

A study of activity cellulase produced traehaderma vinide

綠色木霉纖維素酶酶活力的研究

On the effect of led on the growth of a cellulase producing strain

對纖維素酶產生菌生長的影響

The improvement of measurement of saccharifying cellulase activity

飼用纖維素酶活力測定方法的改進

Study on the culture conditions of aspergillus to produce cellulase

黑麴黴產纖維素酶液體發酵條件的研究

Immunological analysis of bursaphelenchus xylophilus pathogenous cellulase

松材線蟲纖維素酶的免疫學分析

Purification and properties of cellulase activity from aspergillus niger

2446纖維素酶的純化及酶學性質的研究

Purification and properties of the cellulase from aspergillus niger

飼用黑麴黴纖維素酶的純化及酶學特性的研究

Softening finishing of natural color - cotton fabrics with cellulase and pectolase

天然彩色棉織物的生物酶柔軟整理

Cellulase an enzyme that hydrolyzes 1, 4 - glycosidic linkages in cellulose, yielding cellobiose ( a disaccharide ) and glucose

纖維素酶：一種能夠水解纖維素中1 ， 4糖苷鍵，生成纖維二糖（一種二糖）和葡萄糖的酶。

Study on the screening of cellulase strains for distiller biomass degradation

分解酒糟生物質的纖維素酶生產菌的篩選研究

Cloning and expressing of cellulase gene from thermophilic fungi chaetomium thermophilum ct

的克隆及在畢赤酵母中的表達

Restudy of the characters of alkaline cellulase production from an atcc alkalophilic bacillus strain

堿性纖維素酶產生菌產酶特性的重新確定

The research on bioconversion of cellulosic materials to produce fuel alcohol around the world mainly focused on the pretreatment of raw materials, the approaches to reduce cellulase cost, the optimization of fermentation course, appropriate use and transformation of microbial species, and the comprehensive use of waste distiller ' s materials etc

各國對纖維質原料生產燃料酒精的研究主要集中在原材料的預處理、如何降低纖維素酶的成本、發酵過程的優化、菌種的合理運用和改造、酒精廢糟的綜合利用等方面。

Effects of cellulase on growth performance, feed digestive rate and whole body composition in grass carp

纖維素酶對草魚生長性能和飼料消化率及體成分的影響

Two novel cellulases were identified and isolated to homogeneity from a commercial aspergillus niger cellulase preparation. one was an endo - l, 4 - - glucanase ( ec

本文是關于黑麴黴（ aspergillusniger ）中兩種纖維素酶的分離純化與表徵及其動力學作用機制的研究。

Studies on liquid - state fermentation for and properties of cellulase from chaetomium thermophlie

液體發酵產生纖維素酶及酶學性質的研究

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

進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。

It was found that b - 6 isolated by the method of distinct zone of clearing in cellulose - congo red agar medium combined with measuring the enzyme activity of liquid culture filtrates had comparatively higher cellulase activity. by measuring activity of cellulase of strains growing in medium with different carbon sources and of washed mycelium induced by different carbon sources in certain time, it found that the formation of cellulase was regulated by the nature of the carbon source used for b - 6 and as3. 3711

真菌纖維素酶是一種誘導酶，碳源同時也是主要的誘導物來源，為了研究碳源對真菌纖維素酶合成的誘導機理，本文利用液體生長培養和洗滌菌絲誘導培養法研究了不同碳源對兩菌株的誘導特性，並用電泳分析法研究了不同碳源的誘導酶譜。