Analytical monitoring of alcoholic fermentation using NIR spectroscopy.
Alcoholic fermentation under Saccharomyces cerevisiae yeasts is governed largely by glucose uptake, biomass formation, ethanol and glycerin production, and acidification. In this work, PLS calibration models were developed with a view to determining these analytical parameters from near infrared spectra and analytical data provided by the corresponding reference methods. The models were applied to a set of samples obtained from various fermentation processes. The glucose, ethanol, and biomass values predicted by the models exhibited a high correlation with those provided by the reference method.
Department of Chemistry, Faculty of Sciences, Universidad Autónoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
Marcel
M
Blanco
Antonio C
AC
Peinado
Jordi
J
Mas
D000465:Algorithms; D019149:Bioreactors / Q000382:microbiology*; D018929:Cell Culture Techniques / Q000379:methods*; D003198:Computer Simulation; D000431:Ethanol / Q000032:analysis / Q000378:metabolism*; D005285:Fermentation / Q000502:physiology; D005947:Glucose / Q000032:analysis / Q000378:metabolism*; D008954:Models, Biological; D015203:Reproducibility of Results; D012441:Saccharomyces cerevisiae / Q000378:metabolism*; D012680:Sensitivity and Specificity; D013055:Spectrophotometry, Infrared / Q000379:methods*
D000431:Ethanol; D005947:Glucose