International Scholarly Research Notices / 2012 / Article / Tab 2

Research Article

Photoproduction of Hydrogen under Different Cultural Conditions by Alginate Immobilized Rhodopsedomonas palustris KU003

Table 2

Effect of nitrogen source on hydrogen production (mL/15 mL vessel) by immobilized cells of Rps. palustris in anaerobic light.

Nitrogen sourceIncubation period (in hrs)
24487296120144166192

Potassium nitrate0.26 ± 0.160.48 ± 0.280.92 ± 0.181.48 ± 0.360.76 ± 0.240.52 ± 0.020.34 ± 0.06
Sodium nitrate0.48 ± 0.041.10 ± 0.181.66 ± 0.142.2 ± 0.381.46 ± 0.220.78 ± 0.160.36 ± 0.18
Ammonium chloride
Urea0.38 ± 0.020.66 ± 0.061.14 ± 0.340.78 ± 0.180.54 ± 0.240.24 ± 0.14
Thiourea0.26 ± 0.020.38 ± 0.180.78 ± 0.100.82 ± 0.080.66 ± 0.260.34 ± 0.12
Glycine0.16 ± 0.060.64 ± 0.100.82 ± 0.081.86 ± 0.221.46 ± 0.041.18 ± 0.080.94 ± 0.18
L-asparagine0.36 ± 0.060.68 ± 0.180.98 ± 0.121.78 ± 0.182.26 ± 0.261.64 ± 0.101.12 ± 0.16
L-aspartic acid0.40 ± 0.080.76 ± 0.121.48 ± 0.182.4 ± 0.201.24 ± 0.320.84 ± 0.160.64 ± 0.10
L-glutamic acid0.34 ± 0.060.66 ± 0.180.96 ± 0.161.74 ± 0.102.62 ± 0.481.44 ± 0.240.68 ± 0.14
L-glutamine0.28 ± 0.100.46 ± 0.080.72 ± 0.241.82 ± 0.381.36 ± 0.160.64 ± 0.02
L-tyrosine0.16 ± 0.060.64 ± 0.020.82 ± 0.081.86 ± 0.322.48 ± 0.161.18 ± 0.180.94 ± 0.26
L-cystine0.28 ± 0.040.46 ± 0.140.88 ± 0.281.46 ± 0.462.12 ± 0.221.76 ± 0.141.12 ± 0.08
L-methionine0.4 ± 0.020.68 ± 0.180.88 ± 0.201.52 ± 0.101.1 ± 0.080.74 ± 0.10
Nitrogen gas0.42 ± 0.140.74 ± 0.221.34 ± 0.220.88 ± 0.160.38 ± 0.12

—No hydrogen.

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