Physicochemical and Functional Potential of Hydrocolloids Extracted from Some Solanaceae Plants
Table 1
Hydrocolloid yield and proximate composition (% age ± SD) of aerial parts of S. nigrum, S surattense, and S. indicum using the water extraction method.
Botanical name
Fraction/parts
Yield
Moisture content
Ash content
Protein content
Starch content
Dietary fiber
Solanum nigrum
Fruit
13.50c ± 0.18
11.00e ± 0.44
0.70c ± 0.03
22.00a ± 0.41
0.70c ± 0.02
66.30bc ± 1.22
Stem
5.92d ± 0.17
19.65b ± 0.68
0.54e ± 0.02
16.00c ± 0.75
0.65d ± 0.01
63.81c ± 2.66
Leaves
1.50f ± 0.02
25.00a ± 0.56
0.60d ± 0.01
9.00d ± 0.38
0.10g ± 0.00
65.30bc ± 2.37
Mean
—
18.55A ± 2.06
0.61B ± 0.03
15.67A ± 1.90
0.48A ± 0.10
65.14B ± 1.15
Solanum surattense
Fruit
17.00b ± 0.76
10.0ef ± 0.20
0.80b ± 0.02
21.50a ± 0.57
0.80b ± 0.02
66.90bc ± 1.76
Stem
6.70d ± 0.09
15.50d ± 0.51
0.70c ± 0.01
17.00c ± 0.55
0.45e ± 0.01
66.35bc ± 2.73
Leaves
1.88f ± 0.09
20.00b ± 0.31
0.60d ± 0.01
6.00e ± 0.12
0.00h ± 0.00
73.10a ± 1.50
Mean
—
15.17B ± 1.46
0.70A ± 0.03
14.83B ± 2.31
0.42B ± 0.12
68.7A ± 1.50
Solanum indicum
Fruit
21.00a ± 0.42
9.50f ± 0.43
0.90a ± 0.01
19.00b ± 0.44
0.85a ± 0.01
69.75ab ± 1.62
Stem
4.90e ± 0.18
18.00c ± 0.53
0.60d ± 0.01
16.50c ± 0.24
0.30f ± 0.01
64.60c ± 1.30
Leaves
0.00g ± 0.00
0.00g ± 0.00
0.00f ± 0.00
0.00f ± 0.00
0.00h ± 0.00
0.00d ± 0.00
Mean
—
9.17C ± 2.61
0.50C ± 0.13
11.83C ± 2.98
0.38C ± 0.12
44.78C ± 11.24
Each value is expressed as the mean ± standard deviation (n = 3) of a triplicate analysis. The means followed by different superscripted lowercase letters indicate significant differences () within the rows and columns based on ANOVA two-way factorial test. Small letters represent comparison among interaction means, and capital letters are used for the overall mean. ND: not determined.