Table 3.

List of trials with defined factors and corresponding responses measured on day 14. Sulfur conversion rate is calculated for each trial

Trial No	Sulfur [g L−1]	Phosphate [mg L−1]	Inoculum v/v [%]	pH	SO42− [mol L−1]	OD600	Sulfur conversion [%]
1	27	35	3	0.47	0.71	0.297	82
2	20	25	3	0.36	0.72	0.599	108*
3	20	45	3	0.67	0.63	0.476	97
4	35	35	3	0.28	0.90	0.457	81
5	35	25	3	0.24	0.94	0.576	84
6	35	45	5	0.33	0.86	0.445	76
7	35	35	5	0.21	0.82	0.606	73
8	27	25	5	0.33	0.73	0.393	84
9	27	45	5	0.63	0.54	0.268	61
10	20	35	5	0.31	0.68	0.672	103*
11	35	25	3	0.18	1.08	0.456	97
12	27	45	10	0.36	0.60	0.381	68
13	27	35	10	0.35	0.85	0.515	97
14	20	25	10	0.38	0.70	0.528	105*
15	20	45	10	0.48	0.74	0.390	113*
16	20	45	3	0.33	0.65	0.500	100
17	35	45	5	0.24	0.85	0.362	75
18	27	35	10	0.24	0.73	0.727	82

*Conversion rates > 100% may be due to levels of elemental sulfur transferred along with the inoculum