Essential Oils of Plants as Biocides against Microorganisms Isolated from Cuban and Argentine Documentary Heritage
Table 2
Median values of the antibacterial activity of seven essential oils dissolved in ethanol at 70% (v/v) at two concentrations against six bacterial strains isolated from documents biofilms and indoor environments of archival repositories.
Details of plant oils
Diameter of inhibition zone (mm) at 24
Plant species
Common name
Conc. (%)
Bacillus sp.
Bacillus polymyxa
Bacillus cereus
Bacillus thuringiensis
Enterobacter agglomerans
Streptomyces sp.
Pimpinella anisum
Anise
50
0
2
0
5
4
5
25
0
5
0
7
6
7
Syzygium aromaticum
Clove
50
7
10
14
18
6
11
25
7
10
18
24
6
12
Cuminum cyminum
Cumin
50
4
5
0
0
5
8
25
4
4
0
0
5
4
Allium sativum
Garlic
50
15
14
8
8
30
30
25
10
11
8
7
30
30
Laurus nobilis
Laurel
50
10
4
0
0
2
4
25
7
4
0
0
2
2
Citrus sinensis
Orange sweet
50
7
6
8
8
1
12
25
10
5
7
8
1
12
Origanum vulgare
Oregano
50
12
11
25
21
11
14
25
10
10
30
30
8
11
Controls
Ethanol
70
0
0
0
0
0
0
Gentamycin sulphate
40 mg/mL
17
20
18
21
26
32
*
Streptomyces sp. was incubated at 72 h.
aData are mean of three replications.
