Characteristics of pullulanases from extremely thermophilic archaea isolated from deep-sea hydrothermal vents |
| |
Authors: | Hubert Gantelet Christine Ladrat Anne Godfroy Georges Barbier Francis Duchiron |
| |
Affiliation: | (1) Laboratoire de Microbiologie Industrielle, Université de Reims-Champagne-Ardenne, UFR Sciences Exactes et Naturelles, Moulin de la Housse, Reims, France;(2) IFREMER, Centre de Brest, Laboratoire de Biotechnologie des Micro-organismes Hydrothermaux, Plouzané, France |
| |
Abstract: | Two out of three extremely thermophilic anaerobic archaea, isolated from deep-sea hydrothermal vents, produced pullulanase activity in the presence of maltose in the growth medium. Enzyme activities were mainly extracellular and characterized by optimum temperatures of 95°C and 80–95°C, optimum pH of 5.0–7.0 and a high degree of thermostability. One strain when grown in a fermenter with maltose as inducer produced pullulanase at 35 U/l. © Rapid Science Ltd. 1998 |
| |
Keywords: | pullulanase deep-sea hydrothermal vents Thermococcus thermostability archaea. |
本文献已被 SpringerLink 等数据库收录! |
|