Fig. 3
Determination of H2 (a) and acetic acid (b) on daily N2-purged cultures under 12 PAR and in the dark. Cultures incubated under 12 PAR, 12 PAR + DCMU and in the dark were purged daily for 5 min with N2 gas. For comparison purposes, aerated and non-aerated 12 PAR culture conditions are also included in the graphic. Other details are as in Fig. 2. Represented data are average from at least three independent experiments