Evaluation of Mediterranean Agricultural Residues as a Potential Feedstock for the Production of Biogas via Anaerobic Fermentation

Table 1

Volatile solids (VS) and total solids (TS) content of initial untreated biomass samples.

Sample	Total solids; (wt. %)	Volatile solids; (wt. %)
Vine pruning	95.07	91.97
Olive pruning	91.63	89.02
Almond shells	93.06	91.95
Inoculum	1.53	0.97