@article{(Open Science Index):https://publications.waset.org/pdf/10008774, title = {The Effect of Temperature and Salinity on the Growth and Carotenogenesis of Three Dunaliella Species (Dunaliella sp. Lake Isolate, D. salina CCAP 19/18, and D. bardawil LB 2538) Cultivated under Laboratory Conditions}, author = {Imen Hamed and Burcu Ak and Oya Işık and Leyla Uslu and Kubilay Kazım Vursavuş}, country = {}, institution = {}, abstract = {In this study, 3 species of Dunaliella (Dunaliella sp. Salt Lake isoalte (Tuz Gölü), Dunaliella salina CCAP19/18, and Dunaliella bardawil LB 2538) and their optical density, dry matter, chlorophyll a, total carotenoids, and β-carotene production were investigated in a batch system. The aim of this research was to compare carotenoids, and β-carotene production were investigated in a batch those 3 species. Therefore 2 stress factors were used: 2 different temperatures (20°C and 30°C) and 2 different salinities (30‰, and 60‰) were tested over a 17-day study. The highest growth and chlorophyll a was reported for Dunaliella sp. under 20°C/30‰ and 20°C/60‰ conditions respectively followed by D. bardawil and D. salina. Significant differences were noticed (p<0.05) for the other 3 species. The growth decreased as temperature and salinity increased since the lowest growth was noticed for the 30°C/60‰ group. The chlorophyll a content decreased also as temperature increased however when the NaCl concentration increased an augmentation of the content was noticed . In the 17th day of experiment the highest carotenoids concentration was reported for D. bardawil 20°C/30‰ (65,639±0,400 μg.mL−1) and the most important β carotene concentration was for D. salina 20°C/60‰ (8,98E-07±0,013 mol/L). }, journal = {International Journal of Biotechnology and Bioengineering}, volume = {11}, number = {11}, year = {2017}, pages = {806 - 811}, ee = {https://publications.waset.org/pdf/10008774}, url = {https://publications.waset.org/vol/131}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 131, 2017}, }