Table 4 BBD on extraction yields of fermentable sugars and phenolic compounds after acid plus steam treatment of PPW.

From: Investigation and characterization of changes in potato peels by thermochemical acidic pre-treatment for extraction of various compounds

Sample No.

K1

K2

K3

Total Sugar mg/gds

Reducing Sugar mg/gds

Total Phenolic Comopunds mg/gds

Predict

Observe

Difference

Predict

Observe

Difference

Predict

Observe

Difference

1

5

0.8

6

791.04

720.00

−71.04

699.00

660.62

−38.38

39.90

38.66

−1.24

2

5

1.2

6

619.66

584.0

−35.66

612.26

513.4

−98.86

37.02

37.46

0.44

3

15

0.8

6

467.46

474.68

7.22

358.41

391.37

32.96

19.00

18.86

−0.14

4

15

1.2

6

469.93

493.61

23.68

321.40

334.2

12.8

25.113

25.53

0.417

5

10

0.8

4

435.99

457.01

21.02

392.22

357.04

−35.18

21.79

22.17

0.38

6

10

1.2

4

351.20

354.51

3.31

346.96

342.02

−4.94

27.37

26.91

−0.46

7

10

0.8

8

281.92

278.62

−3.3

248.85

253.80

4.95

25.14

25.61

0.47

8

10

1.2

8

284.72

263.71

−21.01

195.21

230.40

35.19

27.28

26.90

−0.38

9

5

1.0

4

549.82

578.84

29.02

345.26

454.02

108.76

34.1

34.6

0.5

10

15

1.0

4

391.02

365.14

−25.88

312.76

303.26

−9.5

20.64

20.53

−0.11

11

5

1.0

8

251.76

329.42

77.66

279.10

307.62

28.52

37.46

37.80

0.34

12

15

1.0

8

343.34

333.67

−9.67

138.07

101.82

−36.25

21.69

21.53

−0.16

13

10

1.0

6

271.42

238.91

−32.51

209.87

210.31

0.44

26.40

29.12

2.72

14

10

1.0

6

271.42

248.73

−22.69

209.87

184.80

−25.07

26.40

24.80

−1.6

15

10

1.0

6

271.42

366.62

95.2

209.87

234.51

24.64

26.40

25.30

−1.1

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