Research Article

Extracellular Biofabrication, Characterization, and Antimicrobial Efficacy of Silver Nanoparticles Loaded on Cotton Fabrics Using Newly Isolated Streptomyces sp. SSHH-1E

Table 3

Full-factorial Plackett-Burman design matrix of 14 independent (assigned) variables and mean response for biosynthesis of AgNPs by Streptomyces narbonensis SSHH-1E.

Run Temperature
  ()
 pH
 ()
 Incubation
 time ()
  Inoculum
  size ()
 Inoculum
  age ()
 Agitation
speed ()
 Medium
volume ()
 Starch
  ()
 NaNO3
  ()
 K2HPO4
  ()
 MgSO4·7H2O  
  ()
 Yeast extract
  ()
 Malt extract
  ()
 Peptone
  ()
Absorbance at 400 nm
ExperimentalPredicted

11 (37)−1 (6)1 (7)−1 (2)−1 (24)−1 (150)−1 (50)1 (20)1 (3)−1 (0.5)1 (1)1 (1)−1 (1)−1 (0.5)0.03−0.036
2−1 (30)1 (8)1 (7)−1 (2)1 (48)1 (200)−1 (50)−1 (10)1 (3)1 (1.5)1 (1)1 (1)−1 (1)1 (1)0.800.746
31 (37)−1 (6)−1 (5)−1 (2)−1 (24)1 (200)1 (100)−1 (10)1 (3)1 (1.5)−1 (0.25)−1 (0.5)1 (2)1 (1)0.120.056
41 (37)1 (8)1 (7)1 (4)−1 (24)1 (200)−1 (50)1 (20)−1 (1)−1 (0.5)−1 (0.25)−1 (0.5)1 (2)1 (1)0.01−0.043
51 (37)−1 (6)1 (7)−1 (2)1 (48)−1 (150)−1 (50)−1 (10)−1 (1)1 (1.5)1 (1)−1 (0.5)1 (2)1 (1)0.060.144
6−1 (30)−1 (6)−1 (5)−1 (2)1 (48)1 (200)−1 (50)1 (20)1 (3)−1 (0.5)−1 (0.25)1 (1)1 (2)1 (1)0.170.206
71 (37)1 (8)−1 (5)1 (4)1 (48)−1 (150)−1 (50)1 (20)1 (3)1 (1.5)1 (1)−1 (0.5)1 (2)−1 (0.5)0.900.843
8−1 (30)1 (8)1 (7)−1 (2)−1 (24)1 (200)1 (100)1 (20)1 (3)−1 (0.5)1 (1)−1 (0.5)1 (2)−1 (0.5)0.100.186
91 (37)1 (8)−1 (5)1 (4)−1 (24)1 (200)−1 (50)−1 (10)−1 (1)−1 (0.5)1 (1)1 (1)−1 (1)1 (1)0.210.262
10−1 (30)−1 (6)−1 (5)1 (4)1 (48)−1 (150)1 (100)1 (20)−1 (1)−1 (0.5)1 (1)1 (1)1 (2)1 (1)0.200.161
11−1 (30)−1 (6)1 (7)1 (4)−1 (24)1 (200)1 (100)−1 (10)−1 (1)1 (1.5)1 (1)1 (1)1 (2)−1 (0.5)0.01−0.037
121 (37)1 (8)−1 (5)−1 (2)1 (48)1 (200)1 (100)1 (20)−1 (1)1 (1.5)−1 (0.25)1 (1)−1 (1)−1 (0.5)1.451.458
13−1 (30)−1 (6)−1 (5)−1 (2)−1 (24)−1 (150)−1 (50)−1 (10)−1 (1)−1 (0.5)−1 (0.25)−1 (0.5)−1 (1)−1 (0.5)0.350.326
14−1 (30)1 (8)1 (7)1 (4)1 (48)−1 (150)1 (100)−1 (10)1 (3)−1 (0.5)−1 (0.25)−1 (0.5)−1 (1)1 (1)1.401.375
151 (37)−1 (6)−1 (5)1 (4)1 (48)1 (200)1 (100)−1 (10)1 (3)−1 (0.5)1 (1)−1 (0.5)−1 (1)−1 (0.5)1.101.131
16−1 (30)1 (8)−1 (5)−1 (2)−1 (24)−1 (150)1 (100)1 (20)−1 (1)1 (1.5)1 (1)−1 (0.5)−1 (1)1 (1)0.00−0.002
17−1 (30)−1 (6)1 (7)1 (4)1 (48)1 (200)−1 (50)1 (20)−1 (1)1 (1.5)−1 (0.25)−1 (0.5)−1 (1)−1 (0.5)0.580.590
181 (37)−1 (6)1 (7)1 (4)−1 (24)−1 (150)1 (100)1 (20)1 (3)1 (1.5)−1 (0.25)1 (1)−1 (1)1 (1)0.030.086
191 (37)1 (8)1 (7)−1 (2)1 (48)−1 (150)1 (100)−1 (10)−1 (1)−1 (0.5)−1 (0.25)1 (1)1 (2)−1 (0.5)1.601.592
20−1 (30)1 (8)−1 (5)1 (4)−1 (24)−1 (150)−1 (50)−1 (10)1 (3)1 (1.5)−1 (0.25)1 (1)1 (2)−1 (0.5)0.600.653