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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/11014

Title: Effects of Temperature, pH and Salinity on Growth of two Species of Spirulina Isolated from Saudi Arabia.
Authors: A. A. Al-Homaidan.
M. S. Al Husainy.
A. I. Shehata
Keywords: Cyanobacteria
Issue Date: 2005
Publisher: Saudi. J.Biol.Sci.,
Citation: Vol. 12, No.1
Abstract: Spirulina subsalsa Oerst. ex Gomont and S. labyrinthiformis (Menegh.) Gomont were isolated from different sites in Riyadh, Qassim and Eastern regions of Saudi Arabia. The two species were grown in five different growth media and the best growth was observed in Chu no. 10 medium. The final study was carried out on S. subsa/sa which showed the best growth potential. The effects of temperature, pH and salinity on growth, protein content and amino acids were investigated and the best growth was found at 32°C, pH 10 and 0.001 mole of NaCl.. The protein content and the amino acid profile were determined by HPLC. The protein percentage average was 42.2% of dry weight and amongst the amino acids, glutomic acid was the highest (6.60%) and histidine was the lowest (0.64%). The physical and chemical properties of all sites were also studied. The waters were neutral to slightly alkaline. The total dissolved solids (TDS) ranged from 515 to 4,050 mg/I and they were dominated by calcium, sulphate and chloride.
URI: http://hdl.handle.net/123456789/11014
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