Table 1.

List of algal samples (from all the three divisions: Chlorophyta, phaeophyta and rhodophyta) screened for quorum sensing (QS) inhibition activity against Chromobacterium violaceum CV026. The bioassay was performed in triplicates. Methanol was used as negative control, and cinnamaldehyde was used as positive control.

Serial No.	Name of Algae	Division	Quorum sensing inhibition
1.	Padina gymnospora	Phaeophyta	Negative
2.	Sargassum wightii	Phaeophyta	Negative
3.	Pocockiella variegate	Phaeophyta	Negative
4.	Turbinaria ornate	Phaeophyta	Negative
5.	Stoechospermum marginatum	Phaeophyta	Negative
6.	Cystoseria trinodis	Phaeophyta	Negative
7.	Sargassum myriocystum	Phaeophyta	Negative
8.	Sargassum ploiophyllum	Phaeophyta	Negative
9.	Asparagopsis taxiformis	Rhodophyta	Positive
10.	Chondrococcus harnemanii	Rhodophyta	Negative
11.	Gracilaria edulis	Rhodophyta	Negative
12.	Hypnea pannosa	Rhodophyta	Negative
13.	Jania adhaerens	Rhodophyta	Negative
14.	Hypnea valentiae	Rhodophyta	Negative
15.	Pterocladia heteroplatos	Rhodophyta	Negative
16.	Galaxaura obtuse	Rhodophyta	Negative
17.	Halicrysis tchivye	Rhodophyta	Negative
18.	Acanthophora spicifera	Rhodophyta	Negative
19.	Champia parvula	Rhodophyta	Negative
20.	Hypnea flagelliformis	Rhodophyta	Negative
21.	Chondracanthus acicularis	Rhodophyta	Negative
22.	Porphyra kanyakumariensis	Rhodophyta	Negative
23.	Polysiphonia tuticoriensis	Rhodophyta	Negative
24.	Laurencia papillosa	Rhodophyta	Negative
25.	Sarcodia ceylanica	Rhodophyta	Negative
26.	Chaetomorpha antennina	Chlorophyta	Negative
27.	Caulerpa veravalensis	Chlorophyta	Negative
28.	Cladophora indica	Chlorophyta	Negative
29.	Enteromorpha spp.	Chlorophyta	Negative
30.	Ulva fasciata	Chlorophyta	Negative