GUO Chaojiang, QIAO Hongqun, LI Sha, et al. Breeding of welan gum-producing bacteria by low energy N+ ion implantation[J]. Journal of Radiation Research and Radiation Processing, 2007,25(5):266-270.
GUO Chaojiang, QIAO Hongqun, LI Sha, et al. Breeding of welan gum-producing bacteria by low energy N+ ion implantation[J]. Journal of Radiation Research and Radiation Processing, 2007,25(5):266-270.DOI:
Breeding of welan gum-producing bacteria by low energy N,+, ion implantation has been investigated. A high production mutant NX-3-1 for welan gum was screened under the implantation conditions of 20keV, 20×10,14, /cm,-2, the average production of welan gum with NX-3-1 has been raised by 27.5% compared to the original strain in shaking flask culture. NX-3-1 grew much faster than original strain companied with higher glucose consumption in 7.5L fermenter. The maximum welan gum concentration with NX-3-1 was 26.4 g • L,-1,.
关键词
离子注入诱变选育威兰胶发酵
Keywords
Ion implantationWelan gumMutation breedingFermentation