期刊文献+

初始pH对Bacillus sp.DS3降解纤维素活性的影响 被引量:1

The Effect of Initial pH on Bacillus sp. DS3 Cellulose Degradation Activit
下载PDF
导出
摘要 初始pH处理对Bacillus sp.DS3的生长、纤维素降解活性和相对纤维素降解活性影响显著。在碱性(pH8.0)条件下,DS3生长较中性(pH7.0)和酸性(pH6.0)条件下慢,到达稳定期时的细胞最高浓度明显低;但是,碱性条件下的降解活性和相对降解活性均明显高于其他pH条件。这些结果表明,DS3纤维素酶的活性最高或产酶量最大的pH条件为碱性,应用DS3于纤维素酶生产或含高纤维饲料的处理应该优化初始pH为8.0左右。 Initial pH treatments had evident effects on the growth,cellulose-degrading activity and relative cellulose-degrading activity of Bacillus sp.DS3.The alkaline (pH8.0) favored the growth of Bacillus sp.DS3,and had the highest relative cell density in steady state than other pH treatments.But the pH appeared significant higher cellulose-degrading activity and relative cellulose-degrading activity than those of pH 7.0 and pH 6.0.The results showed that the cellulase activity or production of Bacillus sp.DS3 would be achieved the highest under alkaline,and therefore the initial pH should be about pH 8.0 when DS3 was used to produce cellulase and treat forage high-cellulose-contained.
出处 《内蒙古农业科技》 2009年第1期34-36,共3页 Inner Mongolia Agricultural Science and Technology
关键词 BACILLUS sp.DS3 纤维素降解活性 PH Bacillus sp. DS3 Cellulose-degrading activity pH
  • 相关文献

参考文献11

二级参考文献43

  • 1史玉英,沈其荣,娄无忌,刘生浩,崔中利.纤维素分解菌群的分离和筛选[J].南京农业大学学报,1996,19(3):59-62. 被引量:97
  • 2秦江帆,徐奇友,王安.纤维素酶对肉用仔鸡生产性能的影响[J].饲料博览,1996,8(2):12-13. 被引量:21
  • 3王景林,尹清强,吴东林,陈侠甫,王信,蒋兴村.高活力纤维素酶菌株康氏木霉B—7的选育与产酶条件的研究[J].生物技术,1996,6(6):14-17. 被引量:21
  • 4钱发钟 王新华.饲料纤维素酶的研究进展.中国微生物学杂志,2002,5(14):308-310.
  • 5Kubieek, C P, and M E Penttila.Trichoderma and Gliocladium [M].vol.2ed. G E Harman and C P Kubicek(ed.),1998.49-72.
  • 6Saloheimo A, N Aro, M. Ilmen, et al, isolation of the acel gene encoding a Cys2 - His2 transcription factor involved in regulation of Trichoderma reesei[J]. J.Bio. Chem. 2000,275 : 5817 - 5825.
  • 7Aro N, A Saloheimo, M Ilmen, et al. ACE Ⅱ , a novel transcriptional activator involved in regulation of cellulase and xylanase genes of Trichoderma reesei[J].J. Bio. Chem,2001,276:24309 - 24314.
  • 8Van Peij,N N M E,and M M C Gielkens.The transcriptional activator XinR regulates both xylanolytic and endoglucanase gene expression in Aspergillus niger[J]. Appl. Envion. Microbiol., 1998,64 : 3615 - 3619.
  • 9Spiridonov, N A, and D B Wilson. Characteration and cloning of CelR, a transcriptional regulator of cellulase genes from Thermomonospora fusca[J]. J.Biol.Chem, 1999,274:13127- 13132.
  • 10Blair, B G, and K L Anderson. Regulation of cellulase - inducible structures of Clostridium cellulovorans [J]. Can. J. Microbiol. 1999,45 : 242 - 249.

共引文献193

同被引文献10

引证文献1

二级引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部