Biomass composition of Spirulina platensis, Scenedesmus dimorphus and Chlorella vulgaris; a comparative study

Document Type : Research Article

Authors

1 Botany Department, Faculty of Science, Mansoura University, Egypt.

2 Botany Department, Faculty of Science, Mansoura University, Egypt

10.21608/mjb.2020.460718

Abstract

Microalgae are considered a very important source for numerous applications in different fields such as biofuel, food, animal feed, pharmaceutical and biofertilizer owing to their important biochemical composition. Accordingly, three different microalgae species were isolated, identified and their growth on different standard nutrient media was evaluated. The modified Navicula nutrient medium supported relatively the highest growth of all the tested microalgae. The test microalgae maintained different specific growth rates (µ) and growth doublings per day (Dd-1). The dried algal biomass was used for protein, carbohydrate and lipid analyses. Spirulina platensis maintained relatively the higher protein content (57.55%), Scenedesmus dimorphus maintained relatively the higher carbohydrate content (29.6%), while Chlorella vulgaris maintained relatively the higher lipid content (10.8%). The frozen algal biomass was used to determine the phytohormones content for all the tested microalgae. Scenedesmus dimorphus showed the highest content of Cytokinin (24.11 µg 100mL-1), IAA (63.54 µg 100mL-1) ABA (4.29 µg 100mL-1), while Spirulina platensis maintained the highest content of GA3 (130.054 µg 100mL-1). This study may provide a strong recommendation for the promising use of Spirulina platensis, Scenedesmus dimorphus and Chlorella vulgaris in the production of biofertilizers.                

Keywords

Mansoura Journal of Biology
Volume 48, Issue 3
September 2020
Pages 45-51

Files

Share

How to cite

Statistics