Regulatory effect of Fe-EDTA on mixotrophic cultivation of Chlorella sp. towards biomass growth and metabolite production.

Rajesh Kona, Manupati Hemalatha, K Venu Srivastav, S Venkata Mohan

Journal: Bioresource technology 2018;244(Pt 2):1227-1234

PMID: 28687189

Full Text on Elsevier Science View on PubMed

Abstract

The study examined the effect of varying concentrations of iron in the form of ethylene diamine tetra-acetic acid ferric sodium salt (Fe-EDTA) for cultivation of Chlorella sp. under mixotrophic condition to evaluate biomass growth and metabolites production. The experimental data depicted enhanced biomass production along with lipids, carbohydrates and proteins at an optimal iron concentration (8mg/L). Relatively higher biomass production (5.4g/L; 96h) with simultaneous total chlorophyll (5mg/mL (Chl a/b: 3.7/1.3mg/mL)), carbohydrates (105mg/g) and proteins (593mg/g) was observed with 8 mg/L Fe-EDTA. Total and neutral lipid content of 38% and 15.6% was observed under nutrient deprived conditions. The presence of iron showed distinct influence on the saturated fraction of FAME and increment in oleic acid (omega fatty acids; edible oil). Higher concentrations of Fe-EDTA (10/12mg/L) depicted incremental fraction of oleic acid.

Address: Bioengineering and Environmental Science Lab, EEFF Department, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India.; Bioengineering and Environmental Science Lab, EEFF Department, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500 007, India. Electronic address: [email protected].

DOI: 10.1016/j.biortech.2017.06.028

Link outs

Free resources

Other Literature Sources:

https://scite.ai/reports/28687189

Subscription / membership required

Full Text Sources:

https://linkinghub.elsevier.com/retrieve/pii/S0960...

MeSH Terms: Biofuels, Biomass, Chlorella, Edetic Acid, Lipids, Microalgae