Parameter

Averages

Units

Fresh hulls

Old hulls

P value

pH

-

4.20

6.41

<0.0001

Acidity

% anacardic acid

4.25

0.38

<0.0001

Total Solid

% TS

90.66

90.91

0.067

Volatile Solid

% TS

89.21

85.08

<0.0001

Ash

% TS

2.18

6.07

<0.0001

Lipids

% TS

45.91

7.91

0.002

H&C

% TS

26.95

20.83

0.182

Protein

% TS

3.17

8.08

<0.0001

Insoluble Lignin

% TS

21.50

56.41

<0.0001

soluble Lignin

% TS

0.29

0.70

0.227

Total phenols

mg EAG∙g⁻¹ TS

46.95

2.79

<0.0001

Nitrogen

% TS

0.51

1.29

<0.0001

TC

% TS

51

48.63

<0.0001

C/N

-

100

37.69

<0.0001