[Digestion] Rapid estimation of the biochemical methane potential of plant biomasses (...)

[Jerome Rigot]

Some of you may find this paper interesting.

Enjoy, Jerome

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Rapid estimation of the biochemical methane potential of plant biomasses
using Fourier transform mid-infrared photoacoustic spectroscopy
*ARTICLE* in BIORESOURCE TECHNOLOGY 197:475-481 · SEPTEMBER 2015
Impact Factor: 4.49 · DOI: 10.1016/j.biortech.2015.08.050
Abstract
Biochemical methane potential (BMP) is a very important characteristic of a
given feedstock for optimisation of its use in biogas production. However,
the long digestion time needed to determine BMP is the main limitation for
the use of this assay during the operation of anaerobic digesters to
produce biogas. Fourier transform mid-infrared photoacoustic spectroscopy
(FTIR-PAS) was used to predict the BMP of 87 plant biomasses. The developed
calibration model was able to explain 81% of the variance in the measured
BMP of a selected test set with a root mean square error (RMSE) of
40NLCH4kg(-1) of volatile solids (VS) and a ratio of performance to
deviation (RPD) of 2.38. The interpretation of the regression coefficients
used in the calibration revealed a positive correlation of BMP with easily
degradable compounds (amorphous cellulose, hemicellulose and aliphatic
compounds) and a negative correlation with inhibitors of cellulose
hydrolysis (lignin, hemicellulose).
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/digestion_lists.bioenergylists.org/attachments/20150924/6f6e2517/attachment.html>