The effect of temperature variation on the growth of Leptolyngbya (cyanobacteria) HS-16 and HS-36 to biomass weight in BG-11 medium

This study is expected to provide information on the temperature of growth ability of Leptolyngbya HS-16 and Leptolyngbya HS-36, so that storage conditions of culture space in subsequent research can be arranged to prevent these strains from dying or not growing well. In the utilization of cyanobacteria, a clear physiological characterization of the cyanobacteria is required. Temperature is one of the major factors affecting the growth of cyanobacteria. The growth differences between cyanobacteria strains Leptolyngbya HS-16 and Leptolyngbya HS-36 which were incubated in 20 °C, 35 °C, and 50 °C had been studied. Those strains were isolated from Gunung Pancar (Leptolyngbya HS-16) and Maribaya (Leptolyngbya HS-36) hot springs which located in West Java, Indonesia. The water temperature of habitat was 69 °C (Gunung Pancar) and 42 °C (Maribaya). Those strains were grown in batch culture methods for 21 days in BG-11 medium. This research aims to determine the best growth temperature of Leptolyngbya HS-16 and Leptolyngbya HS-36 based on the biomass weight of chlorophyll content. The result showed that the biomass weight and chlorophyll content in 35 °C of Leptolyngbya HS-16 and Leptolyngbya HS-36 were the highest. Both Leptolyngbya were likely thermotolerant cyanobacteria and had optimum cultured temperature 35 °C. There was no correlation between biomass weight and chlorophyll of Leptolyngbya HS-16 and Leptolyngbya HS-36. Further research should be focus on uti...
Source: Biocatalysis and Agricultural Biotechnology - Category: Biotechnology Source Type: research