Biomass estimation in solid state fermentation II. On-line measurements

1991 ◽  
Vol 35 (2) ◽  
Author(s):  
C. Desgranges ◽  
M. Georges ◽  
C. Vergoignan ◽  
A. Durand
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Biomass Estimation ◽  
On Line

scholarly journals Performance of Fungal Growth Through Integrated Gompertz Model and Respiratory Quotient by Solid State Fermentation in Multi-Layer Squared Tray Solid State Bioreactor with Aeration Strategies

2021 ◽  
Author(s):  
Musaalbakri Abdul Manan ◽  
Colin Webb
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Respiratory Quotient ◽  
Fungal Growth ◽  
Gompertz Model ◽  
Solid Substrate ◽  
Aspergillus Awamori ◽  
Promising Alternative ◽  
Fungal Activity ◽  
On Line

Abstract A newly designed, laboratory-scaled and multi-layer squared tray solid state bioreactor (SSB), was developed and successfully operated in solid state fermentation (SSF) conditions. The bioreactor was divided into eight layers of squared perforated trays. Wheat bran was used as a solid substrate for the growth of Aspergillus awamori and Aspergillus oryzae. The SSB was equipped with an oxygen (O2)/carbon dioxide (CO2) gas analyser and a thermocouple. Continuous on-line monitoring of fungal growth could be performed by indirect methods that measure O2 consumed, production of CO2 and metabolic heat. The advantage of using this method is that there are no tedious and time-consuming sampling processes. The evolution of CO2, which represents an accumulation term, was integrated with time and fitted to the Gompertz model in a log-like equation. The Gompertz model generated values that may be used to stimulate and verify the experimental data. Results strongly suggest that the evolved and accumulated CO2, excellently described fungal growth. Simulated results agreed with experimental results. The respiratory quotient (RQ), which is the ratio of CO2 evolution rate (CER) to O2 uptake rate (OUR), was determined by the gas balance method. CER and OUR confirmed that measurements correlated to fungal activity. Each RQ values can explain the differences of each SFF process carried out. Yet, heat evolved by fungal activity also described fungal growth. The current findings is an excellent pre-liminary experimental work, evidencing that multi-layer squared tray SSB with forced moistened aeration present a promising alternative of instrumented bioreactors for SSF processes.

Model for on-line moisture-content control during solid-state fermentation

2000 ◽  
Vol 72 (2) ◽  
pp. 231-243 ◽  
Author(s):  
Frank-Jan J.I. Nagel ◽  
Johannes Tramper ◽  
Marjolein S.N. Bakker ◽  
Arjen Rinzema
Keyword(s):  
Solid State ◽  
Moisture Content ◽  
Solid State Fermentation ◽  
On Line

On-line monitoring of Aspergillus niger GH1 growth in a bioprocess for the production of ellagic acid and ellagitannase by solid-state fermentation

2018 ◽  
Vol 247 ◽  
pp. 412-418 ◽  
Author(s):  
Pedro Aguilar-Zárate ◽  
Jorge E. Wong-Paz ◽  
Luis V. Rodríguez-Duran ◽  
Juan Buenrostro-Figueroa ◽  
Mariela Michel ◽  
...  
Keyword(s):  
Solid State ◽  
Aspergillus Niger ◽  
Solid State Fermentation ◽  
Ellagic Acid ◽  
On Line ◽  
Aspergillus Niger Gh1

Biomass estimation of Aspergillus niger growing on real and model supports in solid state fermentation

1996 ◽  
Vol 10 (1) ◽  
pp. 1-6 ◽  
Author(s):  
J C�rdova-L�pez ◽  
M. Guti�rrez-Rojas ◽  
S. Huerta ◽  
G. Saucedo-Casta�eda ◽  
E. Favela-Torres
Keyword(s):  
Solid State ◽  
Aspergillus Niger ◽  
Solid State Fermentation ◽  
Biomass Estimation
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