Research Article

Antifungal and Antibacterial Metabolites from a French Poplar Type Propolis

Table 2

Antibacterial activity of E1–6 against 28 Gram-negative and Gram-positive strains.

NumberBacterial strainsExtracts (100 µg/mL)
E1: H2OE2: 95% EtOHE3: 70% EtOHE4: MeOHE5: DCME6: mixed solvents

Gram-negative:
1Acinetobacter baumannii (RCH)
2Acinetobacter baumannii (SAN008)
3Acinetobacter baumannii (12)
4Acinetobacter baumannii (AYE)
5Acinetobacter baumannii (CIP7034)
6Acinetobacter baumannii (CIP107292)
7Acinetobacter baumannii (CIP5377)
8Enterobacter cloacae (0705A1743)
9Enterobacter aerogenes (0705A0867)
10Escherichia coli (ATCC25922)
11Escherichia coli (0705A0434)
12Klebsiella oxytoca (0705C0187)
13Pseudomonas aeruginosa (ATCC27853)
14Pseudomonas aeruginosa (0704C0134)
15Pseudomonas aeruginosa (0703C0259)
16Salmonella enteritidis (4)

Gram-positive:
17Corynebacterium striatum (56) +++++
18Enterococcus faecalis (11003508001)
19Enterococcus faecalis (11003492701)
20Enterococcus faecalis (11004774001)
21Enterococcus faecium (11502441401)
22Staphylococcus aureus (ATCC25923)+++
23MRSA (0706C0025)+++
24MRSA (0702E0196)++
25MSSA (0703H0036)
26MSSA (0701A0095)++
27S. epidermidis methiSa(12004523201)
28S. epidermidis methiRb(12552599902)

−: no antibacterial activity, +: antibacterial activity, amethicillin-Susceptible, bmethicillin-Resistant.