Kinetic and stoichiometric analysis of hairy roots in a segmented bubble column reactor

1995 ◽  
Vol 11 (4) ◽  
pp. 429-435 ◽  
Author(s):  
Kian H. Kwok ◽  
Pauline M. Doran
Keyword(s):  
Hairy Roots ◽  
Bubble Column ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Stoichiometric Analysis

Batch and Fed-Batch Production of Betalains by Red Beet (Beta vulgaris) Hairy Roots in a Bubble Column Reactor

2007 ◽  
Vol 62 (5-6) ◽  
pp. 439-446 ◽  
Author(s):  
Atanas Pavlov ◽  
Milen Georgiev ◽  
Thomas Bley
Keyword(s):  
Beta Vulgaris ◽  
Hairy Roots ◽  
Bubble Column ◽  
Dry Weight ◽  
Bubble Column Reactor ◽  
Fed Batch ◽  
Column Reactor ◽  
Red Beet ◽  
Air Supply ◽  
Dry Biomass

Hairy root cultures from red beet (Beta vulgaris L.), which could be used for the commercial production of biologically active betalain pigments, were cultivated in a 3 L bubble column bioreactor in batch mode with various rates of air supply. Both the growth of the roots and betalain volumetric yields were highest (12.7 g accumulated dry biomass/L and 330.5 mg/ L, respectively) with a 10 L/h (0.083 vvm) air supply. The air flow rate also influenced the betacyanins/betaxanthins ratios in the cultures. Growth and betalains production were then examined in two fed-batch regimes (with a 10 L/h air supply), in which nutrient medium was fed just once or on five occasions, designated FBI and FBII, respectively. The root mass accumulation was increased in the FBI feeding regime (to 13.3 g accumulated dry biomass/ L), while in FBII the betalains content was ca. 11% higher (15.1 mg betacyanins/g dry weight and 14.0 mg betaxanthins/g dry weight) than in the most productive batch regime. Data on the time course of the utilization of major components in the medium during both operational modes were also collected. The implications of the information acquired are discussed, and the performance of the hairy roots (in terms of both growth and betalains production) in the bubble column reactor and previously investigated cultivation systems is compared.

Flow visualization of bubble structure in bubble column reactor for fluid mixing

2017 ◽  
Author(s):  
Nur Afizah Ibrahim ◽  
Amir Khalid ◽  
Izzuddin Zaman ◽  
Azwan Sapit ◽  
Bukhari Manshoor
Keyword(s):  
Flow Visualization ◽  
Bubble Column ◽  
Fluid Mixing ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Bubble Structure

Modeling and simulation of a bench-scale bubble column reactor for slurry phase hydrocracking of vacuum residue

Fuel ◽  
2021 ◽  
pp. 122481
Author(s):  
Hung Hai Pham ◽  
Suk Hyun Lim ◽  
Kang Seok Go ◽  
Nam Sun Nho ◽  
Eun Hee Kwon ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Bubble Column ◽  
Bubble Column Reactor ◽  
Vacuum Residue ◽  
Column Reactor ◽  
Bench Scale ◽  
Slurry Phase

Removal process of CO2 using MDEA aqueous solutions in a bubble column reactor

2009 ◽  
Vol 146 (2) ◽  
pp. 184-188 ◽  
Author(s):  
José M. Navaza ◽  
Diego Gómez-Díaz ◽  
M Dolores La Rubia
Keyword(s):  
Aqueous Solutions ◽  
Bubble Column ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Removal Process

scholarly journals Mass Transfer Coefficient Studies in Bubble Column Reactor

2010 ◽  
Vol 4 (7) ◽  
Author(s):  
D. Devakumar ◽  
K. Saravanan ◽  
T. Kannadasan ◽  
B. Meenakshipriya
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Bubble Column ◽  
Bubble Column Reactor ◽  
Column Reactor
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