Effect of Light Intensity for Optimum Biomass and Lipid Production from Scenedesmus dimorphus (Turpin) Kützing

International Conference on Green and Renewable Energy Resources 2016

能源学;生态环境科学

Kurniawati, F.N.^1 ; Mahajoeno, E.^1 ; Sunarto^1 ; Sari, S.L.A.^1

Program of Study Biology, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Surakarta, Indonesia^1

关键词: Alternative energy;    Basal medium;    Cell number;    Completely randomized designs;    Light intensity;    Lipid productions;    Micro-algae;    Scenedesmus;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/75/1/012012/pdf
DOI  :  10.1088/1755-1315/75/1/012012

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

One source of alternative energy substitute for petroleum raw materials is renewable vegetable oils known as biodiesel. Biodiesel can be produced from microalgae, since it was more efficient and environmentally friendly. Scenedesmus dimorphus (Turpin) Kützing was developed as a source of biodiesel since it had potential of high lipid production. The aims of this research were to know the rate of growth of Scenedesmus dimorphus in different lighting and the optimimum light intensity for biomass and lipid production. This research used a completely randomized design consisting of 3 treatments with 3 replications. Treatments in this research were the light intensity, i.e. 7,500, 10,000, and 12,500 lux. Scenedesmus dimorphus was grew in Bold's Basal Medium (BBM). Parameters observed in this research were the cell number, biomass and lipid production of S. dimorphus. Data were analyzed by ANOVA followed by DMRT 5%. The results showed that the optimum growth rate of S. dimorphus was in the intensity of 12,500 lux that was 100.80 x 106cells.ml-1. The optimum production of biomass and lipids was in treatment 12,500 lux i.e; 1.1407 g.L-1and 0.2520 g.L-1(22.28% dry weight).