Table 2 Chemical composition of corncobs and of corncob-based SSFs in the presence of Pleurotus (+ P) or Ganoderma (+ G). Values are expressed as g/100 g DW.

From: Characterization and nutritional valorization of agricultural waste corncobs from Italian maize landraces through the growth of medicinal mushrooms

Corncob genotype

MM

Crude Protein

Sugar

Starch

Ash

IDF

SDF

β-glucan

B73

-

3.2 ± 0.1c

2.4 ± 0.1a

1.5 ± 0.3a

2.0 ± 0.0b

90.9 ± 0.2a

nd

nd

 + P

3.9 ± 0.1b

0.2 ± 0.0c

0.7 ± 0.0ab

3.4 ± 0.6a

88.7 ± 0.3b

1.4 ± 0.0b

0.14 ± 0.02a

 + G

4.2 ± 0.1a

0.4 ± 0.0b

0.1 ± 0.0b

3.4 ± 0.3a

83.3 ± 0.5c

4.3 ± 0.0a

0.24 ± 0.05a

FC

-

3.0 ± 0.0c

3.1 ± 0.0a

2.5 ± 0.6a

2.9 ± 0.1b

88.3 ± 0.6a

0.2 ± 0.0c

nd

 + P

4.0 ± 0.0b

0.3 ± 0.0b

0.7 ± 0.0b

3.4 ± 0.1b

87.2 ± 0.3a

1.9 ± 0.0b

0.19 ± 0.01a

 + G

4.4 ± 0.1a

0.2 ± 0.0b

nd

4.3 ± 0.1a

84.1 ± 0.5b

3.8 ± 0.0a

0.15 ± 0.07a

SG

-

2.4 ± 0.1c

6.6 ± 0.1a

4.0 ± 0.9a

1.7 ± 0.0a

85.1 ± 0.7b

0.1 ± 0.1a

nd

 + P

4.2 ± 0.2b

0.3 ± 0.0c

0.8 ± 0.0b

2.3 ± 0.1a

88.3 ± 0.1a

1.1 ± 0.0b

0.16 ± 0.01a

 + G

4.6 ± 0.1a

0.5 ± 0.0b

0.1 ± 0.0b

2.4 ± 0.2a

82.9 ± 0.5c

3.3 ± 0.0a

0.22 ± 0.04a

RR

-

2.6 ± 0.1c

6.7 ± 0.1a

2.7 ± 0.6a

2.4 ± 0.1b

85.3 ± 0.8a

0.2 ± 0.2c

nd

 + P

4.4 ± 0.1b

0.2 ± 0.1a

0.6 ± 0.0b

3.5 ± 0.5a

85.6 ± 0.8a

1.8 ± 0.0b

0.21 ± 0.03a

 + G

5.3 ± 0.1a

0.4 ± 0.0b

0.1 ± 0.0b

3.5 ± 0.1a

81.5 ± 0.3b

5.0 ± 0.0a

0.27 ± 0.09a

SN

-

4.2 ± 0.0c

5.7 ± 0.1a

5.5 ± 0.2a

2.2 ± 0.1b

81.7 ± 0.2b

0.7 ± 0.1c

nd

 + P

5.3 ± 0.0b

1.4 ± 0.0b

0.8 ± 0.0b

2.7 ± 0.0ab

82.6 ± 0.0ab

1.6 ± 0.0b

0.17 ± 0.02b

 + G

5.9 ± 0.1a

0.2 ± 0.0c

nd

3.3 ± 0.1a

84.3 ± 1.5a

3.6 ± 0.0a

0.37 ± 0.07a

  1. Data (means ± SD) not sharing common letters within the same variable and corncob genotypes are significantly different (P < 0.05). See Figs. 1a and 5 for sampling codes of the corncob genotypes and MMs strains.
  2. IDF insoluble dietary fiber; SDF soluble dietary fiber; nd not detectable; (-) corncob alone.