Pichia stipitis를 이용한 모자반 가수분해물로부터의 bioethanol 생산 시 최적 surface aeration rate KCI

Title
Pichia stipitis를 이용한 모자반 가수분해물로부터의 bioethanol 생산 시 최적 surface aeration rate
Alternative Title
Optimal Surface Aeration Rate for Bioethanol Production from the Hydrolysate of Seaweed Sargassum sagamianum Using Pichia stipitis
Author(s)
이상은; 김혜지; 최운용; 강도형; 이현용; 정경환
KIOST Author(s)
Kang, Do-Hyung(강도형)
Publication Year
2011-08
Abstract
We investigated the optimal surface aeration rate during bioethanol production from the hydrolysate of seaweed Sargassum sagamianum using Pichia stipitis. It was observed that, when the working volume was 880 mL in 2.5-L lab-fermentor, the surface aeration rates of 30 to 100 mL/min were the optimal values for bioethanol production, in which this surface aeration rate corresponded to less than 0.05 (1/min) as the oxygen transfer rate coefficient ( kLa ). In addition, during repeated-batch operation was carried out, we examined whether those surface aeration rates were the optimal for bioethanol production. It was also observed that the surface aeration rates of 30 to 100 mL/min in the working volume of 880 mL were the optimal values in terms of the cumulative bioethanol producrion and bioethanol yield. On the basis of the oxygen transfer rate coefficient it is probable that those surface aeration rates will be applied to the large-scale bioethanol production from the hydrolysate of seaweed Sargassum sagamianum.
ISSN
1225-7117
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1779
Bibliographic Citation
KSBB Journal, v.26, no.3, pp.311 - 316, 2011
Publisher
한국생물공학회
Keywords
Surface aeration; Sargassum sagamianum; bioethanol; repeated-batch; Pichia stipitis
Type
Article
Language
Korean
Publisher
한국생물공학회
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