Characterization of Lactose Consumption during the Biogas Production from Acid Whey by FT-IR Spectroscopy
World Academy of Science, Engineering and Technology. International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering 2013
Kristīne Veģere, Marita Gavare, Māra Grūbe, Kristīna Kokina, Ēriks Skripsts, Simona Larsona, Jānis Rubulis

The consumption of lactose in acid cheese whey anaerobic fermentation process under fed-batch conditions was studied. During fermentation for 100 hours the biogas production (CO2 and CH4) was analyzed online. Among the standard analyses FT-IR spectroscopy was used to follow the consumption of lactose by bacteria. The absorption bands at 990, 894 and 787cm-1 in the 2nd derivative spectra were shown to be characteristic for lactose and were used to follow the lactose conversion. It was shown that acid cheese whey lactose was converted by bacteria in first 7 hours. In the spectra of 17, 18 and 95 hour fermentation samples lactose was not identified and these results correlated with the HPLC data.


Atslēgas vārdi
Acid whey, anaerobic digestion, biogas, FT-IR spectroscopy, lactose consumption
DOI
10.5281/zenodo.1330445
Hipersaite
http://scholar.waset.org/1999.2/3506

Veģere, K., Gavare, M., Grūbe, M., Tihomirova, K., Skripsts, Ē., Larsona, S., Rubulis, J. Characterization of Lactose Consumption during the Biogas Production from Acid Whey by FT-IR Spectroscopy. World Academy of Science, Engineering and Technology. International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering, 2013, Vol. 7, No. 5, 257.-261.lpp. Pieejams: doi:10.5281/zenodo.1330445

Publikācijas valoda
English (en)
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