Table 1 Hydrolytic activity (mm) of Aspergillus niger isolates, obtained from different date by-products

ASP1

Date paste

8.3±0.58^c

-

4.3±0.58^a

4.3±0.58^b

ASP2

10.6±0.58^d

-

10.3±0.58^b

5.3±0.58^b

ASP3

4.3±0.58^b

-

4.6±0.58^a

-

ASP4

-

-

4.3±0.58^a

4±1.00^b

ASP5

Date fruit

8.3±0.58^e

-

5.3±0.58^c

-

ASP6

9±0.00^e

-

5.6±0.58^d

-

ASP7

4.3±0.58^b

-

5.6±1.15^d

-

ASP8

3.3±0.58^b

-

3±1.00^b

-

ASP9

-

-

-

5.3±0.58^e

ASP10

-

-

5.3±0.58b^c

-

ASP11

6.3±1.15^d

-

6.3±0.58^d

3.3±0.58^b

ASP12

3.3±1.15^b

-

-

-

ASP13

-

-

-

-

ASP14

-

-

4.3±0.58^bc

3.3±0.58^b

ASP15

-

-

-

-

ASP16

-

-

6.3±0.58^d

-

ASP17

-

-

6.3±0.58^d

3±0.58^bc

ASP18

5.3±0.58^c

-

-

-

ASP19

-

-

-

-

ASP20

3.6±0.58^b

-

5.3±0.58^bc

4±0.00^d

ASP21

8±1.00^e

-

-

-

ASP22

-

-

-

2.6±0.58^b

ASP23

8.3±0.58^e

-

-

-

ASP24

-

-

-

3.3±0.58^b

ASP25

-

-

-

-

ASP26

Date-seed-powder

7.3±0.58^c

-

6±0.00^b

3.3±0.58^b

ASP27

2.6±0.58^a

-

7.3±0.58^bc

5.3±0.58^c

ASP28

3±0.00^a

-

8.3±0.58^cd

-

ASP29

7.6±1.15^c

-

4±0.00^a

-

ASP30

5.3±0.58^b

-

6.3±0.58^b

-

ASP31

9.3±0.58^d

-

6±1.00^b

5±0.00^c

ASP32

7.3±0.58^c

-

9.3±0.58^d

3.3±0.58^b

ASP33

Date-flesh-powder

4.6±0.58^c

-

-

-

ASP34

4±0.00^b

-

-

-

ASP35

-

-

3.6±0.58^b

3.6±0.58^b

ASP36

-

-

-

-

ASP37

Date juice

-

-

-

-

ASP38

3±1.00^b

-

-

-

ASP39

-

-

-

4.3±0.58^b

ASP40

-

-

-

-