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http://dx.doi.org/10.5657/fas.2008.11.4.219

Effects of pH and Light Irradiation on Coenzyme Q10 Production Using Rhodobacter sphaeroides  

Jeong, Soo-Kyoung (Department of Biotechnology and Bioengineering, Pukyong National University)
Dao, Van Thingoc (Department of Biotechnology and Bioengineering, Pukyong National University)
Kien, Ngyuen (Department of Biotechnology and Bioengineering, Pukyong National University)
Kim, Joong-Kyun (Department of Biotechnology and Bioengineering, Pukyong National University)
Publication Information
Fisheries and Aquatic Sciences / v.11, no.4, 2008 , pp. 219-223 More about this Journal
Abstract
To increase the level of $CoQ_{10}$ production in mass culture, the effects of pH and light irradiation on $CoQ_{10}$ production by Rhodobacter sphaeroides were investigated in a 1-L bioreactor. $CoQ_{10}$ production was growth-associated, and the highest production of $CoQ_{10}$ (1.69 mg/g dry cell) was obtained under uncontrolled pH: this production was 1.7 times higher than that obtained at controlled pH 7. Therefore, pH was a key factor affecting $CoQ_{10}$ production. The effect of light irradiation on $CoQ_{10}$ production was negligible. This result offers an advantage for mass production of $CoQ_{10}$.
Keywords
pH; Light; Rhodobacter sphaeroides; Coenzyme $Q_{10}$;
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