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Title 

Optimization of uracil addition for curdlan (β-1 -> 3-glucan) production by Agrobacterium sp.

Authors 

Jung Heon LeeIn Young Lee

Publisher 

Springer Verlag (Germany)

Issue Date 

2001

Citation 

Biotechnology Letters, vol. 23, no. 14, pp. 1131-1134

Keywords 

agrobacteriumcurdlanuracilglucanagrobacterium sp.

Abstract 

Uracil, acting as a precursor of UDP-glucose, served as an activator on the production of curdlan with Agrobacterium sp. (ATCC 31750). The time of adding uracil was important to improve curdlan production. When uracil was added after ammonium depletion (at 26 h), it was used as a nitrogen source for cell growth. Although the cell concentration increased, the curdlan production was decreased. If uracil was added at 46 h, then uracil was degraded slowly but still activated curdlan production. With the addition of both sucrose (200 g) and uracil (1.5 g), the curdlan production was increased up to 93 g 1-1 after 160 h fermentation.

ISSN 

0141-5492

Link 

http://dx.doi.org/10.1023/A:1010516001444

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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