Geothermal water as a nutrient medium source on the biomass productivity and biochemical composition of Spirulina (Arthrospira platensis) under the greenhouse conditions

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Table 5

Pigments of Spirulina cultured in the Schlösser's medium and in the different ratios of geothermal water.

	SM	GW25	GW50	GW75	GW100
Chlorophyll (mg/g)	21.08 ± 0.12^b	25.09 ± 0.09^b	22.97 ± 0.14^b	17.24 ± 0.08^ab	9.17 ± 0.11^a
Phycocyanin yield (mg/g)	83.57 ± 0.27	93.70 ± 0.35	92.96 ± 0.29	80.20 ± 0.41	92.50 ± 0.48
Phycocyanin purity ratio (A _620/280)	1.33 ± 0.09^a	1.49 ± 0.19^b	1.55 ± 0.21^b	1.75 ± 0.08^c	1.31 ± 0.14^a

The data was analyzed using one-way ANOVA. Different letters in the same line indicate statistically significant differences (P<0.05) among the experimental groups.

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