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Table 2 The matrix and responses for the Plackett-Burman design for the tested isolate to explore the significant effect of different medium components on the melanin productivity

From: Optimizing production of a biopesticide protectant by black yeast

Run

Variables

Responses

X 1

X 2

X 3

X 4

X 5

X 6

X 7

X 8

X 9

X 10

X 11

Dry weight (g/l)

Melanin (mg/l)

1

+

+

+

+

+

+

3.4

32.59

2

+

+

+

+

+

+

5.2

87.74

3

+

+

+

+

+

+

3.8

37.6

4

+

+

+

+

+

+

4

117.83

5

+

+

+

+

+

+

3.5

75.21

6

+

+

+

+

+

+

4.9

68.94

7

+

+

+

+

+

+

3.6

66.43

8

+

+

+

+

+

+

6.4

110.31

9

+

+

+

+

+

+

3.8

57.66

10

0.8

8.14

11

+

+

+

+

+

+

3.3

62.67

12

+

+

+

+

+

+

4.6

116.57

  1. Maximum and minimum values were given as italics where X1 symbolizes sucrose, X2 symbolizes corn steep liquor, X3 symbolizes MgSO4, X4 symbolizes fructose, X5 symbolize malt extract, X6 symbolizes K2HPO4, X7 symbolizes glycerol, X8 symbolizes ram horn, X9 symbolizes NaCL, X10 symbolizes sugar cane molasses, and X11 symbolizes dummy