CHARACTERISTICS OF PULLULANASES FROM EXTREMELY THERMOPHILIC ARCHAEA ISOLATED FROM DEEP-SEA HYDROTHERMAL VENTS

Authors
GANTELET H LADRAT C GODFROY A BARBIER G DUCHIRON F
Citation
H. Gantelet et al., CHARACTERISTICS OF PULLULANASES FROM EXTREMELY THERMOPHILIC ARCHAEA ISOLATED FROM DEEP-SEA HYDROTHERMAL VENTS, Biotechnology letters, 20(9), 1998, pp. 819-823
Citations number
14
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
Biotechnology letters → ACNP
ISSN journal
01415492
Volume
20
Issue
9
Year of publication
1998
Pages
819 - 823
Database
ISI
SICI code
0141-5492(1998)20:9<819:COPFET>2.0.ZU;2-Q
Abstract
Two out of three extremely thermophilic anaerobic archaea, isolated fr om deep-sea hydrothermal vents, produced pullulanase activity in the p resence of maltose in the growth medium. Enzyme activities were mainly extracellular and characterized by optimum temperatures of 95 degrees C and 80-95 degrees C, optimum pH of 5.0-7.0 and a high degree of the rmostability. One strain when grown in a fermenter with maltose as ind ucer produced pullulanase at 35 U/I.