Enhanced Production of Astaxanthin by Metabolically Engineered Non-mevalonate Pathway in Escherichia coli

Autor: Youn Su Cho, Tae Hyug Jeong, Han Kyu Lim, Seong-Seok Choi, Kun-Do Kim
Rok vydání: 2018
Předmět:
Zdroj: Microbiology and Biotechnology Letters. 46:114-119
ISSN: 2234-7305
1598-642X
DOI: 10.4014/mbl.1801.01007
Popis: Astaxanthin is one of the major carotenoids used in pigment has a great economical value in pharmaceutical markets, feeding, nutraceutical and food industries. This study was to increase the production of astaxanthin by co-expression with transformed Escherichia coli using six genes involved in the non-mevalonate pathway. Involved in the non-mevalonate biosynthetic pathway of the strain Kocuria gwangalliensis were cloned dxs, ispC, ispD, ispE, ispF, ispG, ispH and idi genes in order to increase astaxanthin production from the transformed E. coli. And co-expression with the genes to compared the amount of astaxanthin production. This engineered E. coli, containing both the non-mevalonate pathway gene and the astaxanthin biosynthesis gene cluster, produced astaxanthin at 1,100 μg/g DCW (dry cell weight), resulting in approximately three times the production of astaxanthin.
Databáze: OpenAIRE