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EFFECT OF FLUID RHEOLOGICAL PROPERTIES ON MASS-TRANSFER IN A BIOREACTOR
Alternative TitleJ. Chem. Technol. Biotechnol.
LI, GQ; QIU, HW; ZHENG, ZM; CAI, ZL; YANG, SZ
1995-04-01
Source PublicationJOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
ISSN0268-2575
Volume62Issue:4Pages:385-391
AbstractRheological properties and oxygen mass transfer coefficient (k(L) a) were investigated in a stirred reactor (10 dm(3)) in the course of fermentations producing microbial polysaccharides-pullulan and xanthan. The fermentation broths behaved as pseudoplastic non-Newtonian fluids in both cases. Studies on the relationship between fluid theological properties and k, a were also carried out. The oxygen mass transfer coefficient decreases during the fermentation and exponential equations have been obtained to describe the relationship between the oxygen mass transfer coefficient, the agitation speed and the apparent viscosity of the broths. Furthermore, comparison of results between pullulan and xanthan fermentations was investigated. For the xanthan fermentation process, mixing and mass transfer in the reactor were more difficult than those for the pullulan fermentation.; Rheological properties and oxygen mass transfer coefficient (k(L) a) were investigated in a stirred reactor (10 dm(3)) in the course of fermentations producing microbial polysaccharides-pullulan and xanthan. The fermentation broths behaved as pseudoplastic non-Newtonian fluids in both cases. Studies on the relationship between fluid theological properties and k, a were also carried out. The oxygen mass transfer coefficient decreases during the fermentation and exponential equations have been obtained to describe the relationship between the oxygen mass transfer coefficient, the agitation speed and the apparent viscosity of the broths. Furthermore, comparison of results between pullulan and xanthan fermentations was investigated. For the xanthan fermentation process, mixing and mass transfer in the reactor were more difficult than those for the pullulan fermentation.
KeywordRheology Mass Transfer Stirred Bioreactor Microbial Polysaccharide Non-newtonian Fluid
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences ; Technology
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Indexed BySCI
Language英语
WOS Research AreaBiotechnology & Applied Microbiology ; Chemistry ; Engineering
WOS SubjectBiotechnology & Applied Microbiology ; Chemistry, Multidisciplinary ; Engineering, Chemical
WOS IDWOS:A1995QR79400011
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/5897
Collection研究所(批量导入)
AffiliationCHINESE ACAD SCI,INST CHEM MET,BEIJING 100080,PEOPLES R CHINA
Recommended Citation
GB/T 7714
LI, GQ,QIU, HW,ZHENG, ZM,et al. EFFECT OF FLUID RHEOLOGICAL PROPERTIES ON MASS-TRANSFER IN A BIOREACTOR[J]. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,1995,62(4):385-391.
APA LI, GQ,QIU, HW,ZHENG, ZM,CAI, ZL,&YANG, SZ.(1995).EFFECT OF FLUID RHEOLOGICAL PROPERTIES ON MASS-TRANSFER IN A BIOREACTOR.JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY,62(4),385-391.
MLA LI, GQ,et al."EFFECT OF FLUID RHEOLOGICAL PROPERTIES ON MASS-TRANSFER IN A BIOREACTOR".JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY 62.4(1995):385-391.
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