Review Article
Utilization of Biodiesel By-Products for Biogas Production
Table 4
Composition of rapeseed, rapeseed cake after extraction of 60, 70, and 75% of oil and rapeseed meal, in percents of total solids [
111].
| Feed stock | Rapeseed | Rapeseed cake | Rapeseed meal |
| Portion of extracted oil | | 60% | 70% | 75% | | Crude oil | 45 | 24.7 | 19.7 | 17 | 4.5 | Crude protein | 23 | 31.5 | 33.6 | 34.7 | 40 | Crude fibre | 7 | 9.6 | 10.2 | 10.6 | 12.3 | Ash | 5 | 6.8 | 7.3 | 7.5 | 7.7 |
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