FOOD SAMPLE

HAMMER MILL

DISC MILL

Screen size = 4 mm

Particle

Size

n

WC (%)

No. of Particle

(n × WC)

Particle Size

n

WC (%)

No. of Particle

(n × WC)

Benue Yam (chips)

6.70 mm

-

-

-

6.70 mm

-

-

-

4.75 mm

1

0.0

0.0

4.75 mm

1

0.0

0.0

2.36 mm

2

3.88

7.76

2.36 mm

2

0.0

0.0

1.18 mm

3

18.12

54.36

1.18 mm

3

1.65

4.95

600 µm

4

19.76

79.28

600 µm

4

11.92

47.68

425 µm

5

8.92

44.6

425 µm

5

10.56

52.8

Zero particle

6

48.64

291.84

Zero particle

6

75.72

454.32

Total

477.84

Total

559.75

Screen size = 6 mm

Particle size

n

WC (%)

No. of Particle

(n × WC)

6.70 mm

-

-

-

4.75 mm

1

2.34

2.34

2.36 mm

2

12.66

25.32

1.18 mm

3

20.87

62.61

600 µm

4

21.66

86.64

425 µm

5

10.49

52.45

Zero particle

6

31.21

187.26

Total

416.62

Delta Yam (chips)

Screen size = 4 mm

Particle Size

n

WC (%)

No. of Particle

(n × WC)

Particle Size

n

WC (%)

No. of Particle

(n × WC)

6.70 mm

-

-

-

6.70 mm

4.75 mm

1

0.0

0.0

4.75 mm

1

0.0

2.36 mm

2

4.28

8.56

2.36 mm

2

0.0

1.18 mm

3

19.68

59.04

1.18 mm

3

2.24

6.72

600 µm

4

20.92

83.68

600 µm

4

15.52

62.08

425 µm

5

7.64

38.2

425 µm

5

12.48

62.4

Zero particle

6

46.88

281.28

Zero particle

6

69.63

417.78

Total

470

Total

548.98

Screen size = 6 mm

Particle Size

n

WC (%)

No. of Particle

(n × WC)

6.70 mm

4.75 mm

1

4.9

4.9

2.36 mm

2

14.94

29.88

1.18 mm

3

23.45

70.35

600 µm

4

17.22

68.88

425 µm

5

8.51

42.55

Zero particle

6

30.28

181.68

Total

398.24