Skip to main content
. 2020 Oct 17;9(10):712. doi: 10.3390/antibiotics9100712

Table 1.

Antimicrobial effect of algae extracts in Escherichia coli (reference strains and serotypes: American Type Culture Collection (ATCC) 8739/10536/11775/25922/35218; MTCC 739; NCIMB 50034; DSM 498; RCM 01002 52-6; PTCC1330, O157:H7; O126:B16).

Seaweed Solvent MIC/IC50/MBC
(mg/mL)
Agar Diffusion Ref.
Laurencia brandenii (R) MeOH Re [63]
G. ornata (R) H2O/EtOH f NI/NI/R [64]
Pterocladia capillacea (R) H2O cold/H20 hot NI/NI [55]
Dictyopteris membranacea (B) I/NI
D. membranacea (B) (MeOH:DCM)/MeOH f/AcO f/(MeOH:DCM) Re/Re/I/NI [28]
P. capillacea (R)/Osmundaria obtusiloba (R) EtOH/Hex NI [40]
Dictyota dichotoma (B)/P. pavonica (B)/Sargassum vulgare (B) AcO MIC (2.5/2.5/5) [41]
Cystoseira amentacea (B)/Cystoseira barbata (B)/Cystoseira compressa (B) AcO MIC (5) [46]
Cystoesira myrica (B)/Cystoesira trinodis (B)/Padina gymnospora (B)/Sargassum dentifolium (B)/Sargassum hystrix (B)/Actinotrichia fragilis (R)/Caulerpa racemosa (G)/Codium fragile (G) MeOH/EtAc Re/Re [47]
Padina australis Hauck (B) MeOH/DCM/n-Hex MIC (0.88/1.04/1.25) [48]
Sargassum polycystum (B) MIC (0.88/1.04/1.04)
S. polycystum (B) MIC (0.73/0.83/0.73)
P. australis Hauck (B) MIC (2.08/2.08/1.66)
S. polycystum (B) MIC (0.83/1.04/0.625)
S. polycystum (B) MIC (0.52/0.83/0.42)
Gracilaria sp. (R) MeOH Re [65]
L. papillosa (R) DCM/(DCM:MeOH)/MeOH/H2O MIC (0.8/0.2/0.8/0.4)
MBC (1.4/0.2/1.6/0.6)
Re/Re/Re/Re [62]
Padina antillarum (B) MeOH/EtAc MIC (3.75/3.75) I/I [66]
Padina boergeseni (B) MIC (7.5/7.5) I/I
Ulva flexuosa (G) MIC (1.18/0.93) S/S
Ulva lactuca (G)/Enteromorpha intestinales (G)/Cladophora vagabunda (G) EtOH R e/Re/I [67]
Grateloupia doryphora (R) EtOH/MeOH/EtAc NI [68]
Halimeda tuna (G)/Melanothamnus afaqhusainii (R)/Dictyota indica (B)/D. dichotoma var. intricata (B)/Sargassum lanceolatum (B) EtOH Re [57]
C. trinodis (B) DiEt:EtOH:Hex MIC (4.12) [49]
Cladophora glomerata (G) EtOH MIC (>1.25) I [50]
Enteromorpha linza (G) MIC (>5) Re
Ulva rigida (G) MIC (>10) Re
C. barbata (B) MIC (>5) Re
P. pavonica (B) MIC (>1.25) I
C. officinalis (R) MIC (>1.25) I
Ceramium ciliatum (R) MIC (>5) Re
D. membranacea (B) H2O/EtAc/CHCl3 NI [59]
Cymodocea nodosa (G)/H. tuna (G)/C. barbata (B)/Codium bursa (G) DCM:MeOH NI [51]
Chaetomorpha linum (G)/Cladophora rupestris (G)/Fucus serratus (B)/Halosiphon tomentosus (B)/Saccharina latissima (B)/Bonnemaisonia hamifera (R)/Callithamonion corymbosum (R)/Ceramium tenuicorne (R)/Dasya baillouviana (R)/Delesseria sanguinea (R)/Dumontia contorta (R)/Polysiphonia elongata (R)/Polysiphonia nigra (R)/R. confervoides (R) DCM NI [69]
G. corticata (R) MeOH/DMSO S/Re [61]
G. edulis (R) MeOH Re
S. lomentaria (B)/P. pavonica (B)/Cystoseira mediterranea (B)/Hypnea musciformis (R)/Spyridia filamentosa (R) MeOH I/I/NI/NI/Re [54]
A. fragilis (R)/C. myrica (B)/Hormophysa cuneiformis (B)/L. papillosa (R)/Sargassum cinereum (R)/Turbinaria turbinata (B) MeOH Re [52]
C. barbata (B) EtOH Re [70]
Kappaphycus alvarezii (R) EtOH/Hot H2O NI [71]
Oedogonium sp. (G) MeOH/EtOH NI [72]
Stigeoclonium sp. (G) I/I
Ulothrix sp. (G) I/I
Nitzschia sp. (G) Re/I
Bifurcaria bifurcata (B) MeOH/DCM Re/NI [53]
Re/Re
Hypnea flagelliformis (R) MeOH/H2O/DCM NI [73]
C. myrica (B) NI
Sargassum boveanum(B) NI
Turbinaria conoides (B) n-Hex/ClHx/MeOH/(EtOH:H2O) Re/Re/NI [74]
Cystoseira tamariscifolia (B)/P. pavonica (B)/R. confervoides (R)/U. lactuca (G) MeOH I/I/I/Re [60]
Laurencia obtusa (R)/Codium elongatum (G)/C. multifida (B) AcO MIC (0.17/2.5/0.16) [42]
Fucus vesiculosus (B)/Cystoseira baccata (B) EtOH IC50 (2.25/2.5) [43]
Saccharina japonica (B) CO2 MIC (3.4) [44]
Enteromorpha prolifera (G) PeEt/DiEt/EtAc/MeOH I/I/R e/I [58]
Ulva reticulata (G) S/I/Re/I
C. myrica (B) I
P. pavonica (B) I
Turbinaria triquetra (B) I
Sargassum portieriatum (B) S/I/I/I
G. multipartite (R) I/I/I/Re
Hypnea esperi (R)/Caulerpa prolifera (G) MeOH Re/NI [75]
Himanthalia elongata (B) n-Hex/EtOH/H2O MBC (7.2/6.0/12.5) [21]
Sargassum ilicifolium (B)/H. cuneiformis (B)/S. polycystum (B)/Sargassum sp. (B)/T. conoides (B)/Turbinaria decurrens (B)/Turbinaria ornata (B) MeOH Re [76]
Sargassum incisifolium(B) EtAc Re [76]
L. complanata (R) MeOH/Hex f/(Hex:EtAc) f/MeOH f Re/NI/NI/NI [77]
Grateloupia sp. (R)/G. corticata (R)/Spyridia sp. (R)/Meta-mastophora sp. (R)/Calloseris sp. (R)/Neurymenia fraxinifolia (R) MeOH Re
Halymenia sp. (R) DiEt Re
U. reticulata (G) (MeOH:CHCl3:H2O) I [78]
U. rigida (G) (EtOH:H2O)/Hex f/CHCl3 f/EtAc f/ButOH f/H2O f Re/NI/I/Re/NI/NI [45]
NI/Re/NI/NI/NI
U. lactuca (G)/D. dichotoma (B) MeOH/DiEt/CHCl3 Re/Re/S [79]
Re/Re/Re
U. rigida (G) DCM/DCM:MeOH NI/Re [80]

Seaweed information: (G)—green algae (Chlorophytes); (R)—red algae (Rhodophytes); (B)—brown algae (Phaeophyta); nd—not determined. Solvents: AcO—acetone; EtOH—ethanol; MeOH—methanol; DCM—dichloromethane; EtAc—ethylacetate; H2O—water; Hex—hexane; CO2—carbon dioxide; DMSO—dimethilsulfoxide; CHCl3—chloroform; BuOH—butanol; PeEt—petroleum ether; DIEt—diethyl ether; PolySA—polysaccharides agar; f—fraction. Agar diffusion: re—resistant ≤ 14 mm I—intermediate 15–19 mm S—susceptible ≥ 20 mm [32]; NI—no inhibition.