Table 1: Chemical composition, analysis of minerals content, and organic acids of blackberry residues.

Blackberry

Composition (%)
 Moisture
 Protein
 Lipids
 Total carbohydrates
 Total dietary fiber
 Ash
Element (%)
 C
 N
 O
 P
 Na
 Mg
 K
 Ca
 Fe
 Cu-
 Zn-
 Mn-
 S
 Si
 Cl
Organic acids (mg/100 g db)
 Oxalic acid
 Malic acid
 Citric acid
 Fumaric acid
 Ascorbic acid

± standard deviation ().