. 2017 Jan 24;7:41193. doi: 10.1038/srep41193

Table 3. Emulsification activity of 2% (w/v) EPS solutions from Acidobacteria strains WH15 (EPSWH15) and 5B5 (EPS5B5), Tween 80 and xanthan with different oils and different hydrocarbons in 3:2 ratio (v/v).

Oil/Hydrocarbon	Positive Controls^a				Acidobacterial Exopolysaccharides^a
	Tween 80	Xanthan			EPSWH15			EPS5B5
	E₂₄	E₂₄	E₁₆₈	E₃₆₀	E₂₄	E₁₆₈	E₃₆₀	E₂₄	E₁₆₈	E₃₆₀
Sunflower seed oil	100 ± 0.02a*	50.03 ± 2.43a	44.70 ± 2.40	30.56 ± 2.78	66.98 ± 1.45a	63.00 ± 2.41	62.04 ± 1.60	67.89 ± 4.18a	64.57 ± 1.85	66.65 ± 0.93
Diesel oil	63.21 ± 2.96b	76.85 ± 4.24b	67.84 ± 8.24	66.02 ± 6.67	12.28 ± 1.75b	12.28 ± 1.75	14.43 ± 2.98	33.65 ± 2.83b	33.65 ± 2.83	32.45 ± 4.08
Liquid paraffin oil	91.35 ± 3.42a	70.81 ± 12.36ab	39.00 ± 3.23	37.12 ± 4.46	58.71 ± 0.65c	49.50 ± 2.95	54.13 ± 1.39	54.18 ± 3.66a	52.78 ± 2.78	51.68 ± 9.52
Toluene	46 ± 1.54bc	38.26 ± 7.88ac	29.10 ± 1.85	9.08 ± 1.50	10.19 ± 1.60b	10.29 ± 1.70	11.17 ± 2.56	21.30 ± 1.60b	21.48 ± 1.28	21.30 ± 1.60
Hexane	49 ± 2.45bc	22.51 ± 12.42c	23.15 ± 1.60	7.41 ± 1.60	26.85 ± 1.60d	26.85 ± 1.60	25.93 ± 1.16	59.26 ± 8.93a	58.33 ± 4.81	50.92 ± 4.24

^aResults are expressed as percentages of the total height occupied by the emulsion; Values in bold: Emulsifier Index (E24) with values above 50%; Mean values of three replicates ( ± standard deviation). *Treatments with the same letter do not differ by the by the Tukey’s post hoc test (P < 0.05).

E₂₄ emulsification index after 24 h; E₁₆₈ emulsification index after 168 h; E₃₆₀ emulsification index after 360 h.