10.2.14 Carbohydrates
To understand the methane yield and model, the anaerobic digestion process, in case
of food feedstock, to determine the concentration of carbohydrates, protein, and
lipids can be beneficial. The total carbohydrate content has to be calculated by
subtraction to 100% of the percentage of proteins, fats, moisture content, and ash
(Nielsen 2017).
10.2.15 Fats
The determination of the total lipid content of a feedstock is determined by extraction with organic solvents. An optimal solvent to be used in fat extraction should
have the characteristics shown in Table 10.5 (Nielsen 2017).
Among the most used solvents, we find ethyl ether and petroleum ether but also
pentane and hexane.
Fig. 10.4 Online monitoring of VFA (Feitkenhauer et al. 2002)
320
PietroBartocci et al.
To understand the methane yield and model, the anaerobic digestion process, in case
of food feedstock, to determine the concentration of carbohydrates, protein, and
lipids can be beneficial. The total carbohydrate content has to be calculated by
subtraction to 100% of the percentage of proteins, fats, moisture content, and ash
(Nielsen 2017).
10.2.15 Fats
The determination of the total lipid content of a feedstock is determined by extraction with organic solvents. An optimal solvent to be used in fat extraction should
have the characteristics shown in Table 10.5 (Nielsen 2017).
Among the most used solvents, we find ethyl ether and petroleum ether but also
pentane and hexane.
Fig. 10.4 Online monitoring of VFA (Feitkenhauer et al. 2002)
320
PietroBartocci et al.