cellulase ['seljuleis]
- cellulase的基本解释
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n.
纤维素酶, [生化]木纤维质酵素
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The biocatalyzed characters of the purified cellulases were investigated with the CMC-Na as substrate. The most appropriate catalyzed temprature for cellulase 1 is 60 "C,and 65 for cellulase 2. The two enzymes have the extreme stability at the temperatures no more than 50.The CMC-Na has the protective effect on the cellulase. The pH stability range of cellulase 1 is 4 ~ 8, and 6-9 for cellulase 2. Zn2+, Ca2+, Mg2+, K+, Li+can ativate cellulase 1. K+, Li"1 can ativate cellulase 2. Cellulase 1 can mainly decompose CMC and salicin. Cellulase 2 can decompose not only CMC and salicin, but other substrates feebly.
以羧甲基纤维素为底物时,酶1的最适催化温度为60℃,酶2的最适催化温度为65℃,在50℃以下稳定性较好,底物对酶有较强的保护作用;酶1和酶2的最适pH分别为5.5和5.5~6.0,酶1的pH稳定性范围为4~8,酶2的稳定性范围为6~9;Zn~(2+),Ca~(2+),Mg~(2+),K~+,Li~+对酶1有激活作用,K~+,Li~+对酶2有激活作用;酶1主要对CMC和水杨素有分解作用,对其它底物几乎不分解;酶2除了可以分解CMC和水杨素外,对其它底物也有微弱的分解作用。
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The most appropriate catalyzed temprature and pH for it is 60 ℃ and 5.5 respectively. It has the extreme stability at the temperatures no more than 50 ℃.The CMC-Na has the protective effect on the cellulase. The pH stability range of the purified cellulase is 4 ~ 8. Zn2+, Ca2+, Mg2+, K+, Li+ can ativate the cellulase. And cellulase can mainly decompose CMC and salicin, but can decompose other substrates feebly.
对这个组分的催化性质进行了研究,该酶的最适催化温度60 ℃,pH值为5.5,在50 ℃以下酶的稳定性较好,70 ℃条件下底物对酶有较强的保护作用,该酶的pH稳定性范围为4~8, Zn2+,Ca2+,Mg2+,K+,Li+对酶活有促进作用,Mn2+、Co2+、、Fe2+、Fe3+对酶活起抑制作用,酶对CMC-Na和水杨素有分解作用,而不分解脱脂棉和滤纸。
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Symbiotic fungus from the nest play an important role in cellulose degradation, termite could obtain extrinsic cellulase for digesting the lignocellulose from food. The paper mainly compared the discrepance of cellulase activities from termites living different habit, and illustrated the secretion mechanism of cellulase in termite.
高等白蚁后肠缺乏原生动物,但其巢体上的共生真菌具丰富的纤维素酶,因此白蚁常通过取食巢体上的共生真菌来获得外源性纤维素酶,协助完成食物中纤维素的消化与吸收。
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cellulase:纤维素酶
纤维素酶(cellulase)是降解纤维素生成葡萄糖的一组酶的总称,它不是单成分酶,而是由多个酶起协同作用的多酶体系. 人们已对纤维素酶的作用机制及工业化应用等方面进行了大量的研究,为纤维素酶的生产和
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cellulase:纤维酵素
蛋白质分解酵素(Protease)木瓜酵素(Papain )凤梨酵素(Bromelain)醣类分解酵素淀粉分解酵素(Amylase) 葡萄糖淀粉酶(Glucoamylase) 转化酵素(Invertase)植物纤维酵素(Cellulase)乳糖酵素(Lactase)脂肪分解酵素 脂肪酵素(Lipase)
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cellulase:纤维素分解酶
进行预处理时,通过使纤维素等生物质成分的组织结构发生纳米级变化,改进了与纤维素分解酶(Cellulase)之间的接触方式,提高了酶的分解率. 为了提高大幅影响工艺整体经济性的酶分解工序的成本效益,在设备内生产了基于线状菌的淀粉酶.
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cellulase:纖維分解酵素
经由离子交换层析法纯化得到B39菌株分泌之纤维分解酵素(cellulase),此酵素分子量约为148 kDa,在60°C、pH6.5条件下,具有同时分解水溶性羧甲基纤维素(carboxymethylcellulose, CMC)与微结晶状纤维素(microcrystalline cellulose)(Avicel)之最大活性.
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Cellulase enzyme:纤维酶/酵素
Amylase enzyme淀粉酶/酵素 | Cellulase enzyme纤维酶/酵素 | Salt盐
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