Enhanced lipid accumulation of green microalga Scenedesmus sp. by metal ions and EDTA addition

Hong Yu Ren; Bing Feng Liu; Fanying Kong; Lei Zhao; Guo Jun Xie; Nan Qi Ren

doi:10.1016/j.biortech.2014.06.062

Enhanced lipid accumulation of green microalga Scenedesmus sp. by metal ions and EDTA addition

Hong Yu Ren
, Bing Feng Liu^*
, Fanying Kong
, Lei Zhao
, Guo Jun Xie
, Nan Qi Ren

^*Corresponding author for this work

School of Environment

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

156 Scopus citations

Abstract

Effects of Fe³⁺ (0-0.12g/L), Mg²⁺ (0-0.73g/L) and Ca²⁺ (0-0.98g/L) on the biomass and lipid accumulation of heterotrophic microalgae were investigated in dark environment. The biomass and lipid production exhibited an increasing trend with increasing the concentrations of metal ions. In cultures with 1.2×10^-3g/L Fe³⁺, 7.3×10^-3g/L Mg²⁺ and 9.8×10^-4g/L Ca²⁺, the maximum biomass, total lipid content and lipid productivity reached 3.49g/L, 47.4% and 275.7mg/L/d, respectively. More importantly, EDTA addition (1.0×10^-3g/L) could enhance the solubility of metal ions (iron and calcium) and increase their availability by microalgae, which evidently promote the lipid accumulation. Compared with the control, the total lipid content and lipid productivity increased 28.2% and 29.7%, respectively. These show that appropriate concentrations of metal ions and EDTA in the culture medium were beneficial to lipid accumulation of heterotrophic Scenedesmus sp. cells.

Original language	English
Pages (from-to)	763-767
Number of pages	5
Journal	Bioresource Technology
Volume	169
DOIs	https://doi.org/10.1016/j.biortech.2014.06.062
State	Published - Oct 2014

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Algal cultivation
EDTA
Heterotrophic
Lipid accumulation
Metal ion

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10.1016/j.biortech.2014.06.062

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@article{edefaedea2ef4a629b957718d76ba9e4,

title = "Enhanced lipid accumulation of green microalga Scenedesmus sp. by metal ions and EDTA addition",

abstract = "Effects of Fe3+ (0-0.12g/L), Mg2+ (0-0.73g/L) and Ca2+ (0-0.98g/L) on the biomass and lipid accumulation of heterotrophic microalgae were investigated in dark environment. The biomass and lipid production exhibited an increasing trend with increasing the concentrations of metal ions. In cultures with 1.2×10-3g/L Fe3+, 7.3×10-3g/L Mg2+ and 9.8×10-4g/L Ca2+, the maximum biomass, total lipid content and lipid productivity reached 3.49g/L, 47.4\% and 275.7mg/L/d, respectively. More importantly, EDTA addition (1.0×10-3g/L) could enhance the solubility of metal ions (iron and calcium) and increase their availability by microalgae, which evidently promote the lipid accumulation. Compared with the control, the total lipid content and lipid productivity increased 28.2\% and 29.7\%, respectively. These show that appropriate concentrations of metal ions and EDTA in the culture medium were beneficial to lipid accumulation of heterotrophic Scenedesmus sp. cells.",

keywords = "Algal cultivation, EDTA, Heterotrophic, Lipid accumulation, Metal ion",

author = "Ren, \{Hong Yu\} and Liu, \{Bing Feng\} and Fanying Kong and Lei Zhao and Xie, \{Guo Jun\} and Ren, \{Nan Qi\}",

year = "2014",

month = oct,

doi = "10.1016/j.biortech.2014.06.062",

language = "英语",

volume = "169",

pages = "763--767",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Enhanced lipid accumulation of green microalga Scenedesmus sp. by metal ions and EDTA addition

AU - Ren, Hong Yu

AU - Liu, Bing Feng

AU - Kong, Fanying

AU - Zhao, Lei

AU - Xie, Guo Jun

AU - Ren, Nan Qi

PY - 2014/10

Y1 - 2014/10

N2 - Effects of Fe3+ (0-0.12g/L), Mg2+ (0-0.73g/L) and Ca2+ (0-0.98g/L) on the biomass and lipid accumulation of heterotrophic microalgae were investigated in dark environment. The biomass and lipid production exhibited an increasing trend with increasing the concentrations of metal ions. In cultures with 1.2×10-3g/L Fe3+, 7.3×10-3g/L Mg2+ and 9.8×10-4g/L Ca2+, the maximum biomass, total lipid content and lipid productivity reached 3.49g/L, 47.4% and 275.7mg/L/d, respectively. More importantly, EDTA addition (1.0×10-3g/L) could enhance the solubility of metal ions (iron and calcium) and increase their availability by microalgae, which evidently promote the lipid accumulation. Compared with the control, the total lipid content and lipid productivity increased 28.2% and 29.7%, respectively. These show that appropriate concentrations of metal ions and EDTA in the culture medium were beneficial to lipid accumulation of heterotrophic Scenedesmus sp. cells.

AB - Effects of Fe3+ (0-0.12g/L), Mg2+ (0-0.73g/L) and Ca2+ (0-0.98g/L) on the biomass and lipid accumulation of heterotrophic microalgae were investigated in dark environment. The biomass and lipid production exhibited an increasing trend with increasing the concentrations of metal ions. In cultures with 1.2×10-3g/L Fe3+, 7.3×10-3g/L Mg2+ and 9.8×10-4g/L Ca2+, the maximum biomass, total lipid content and lipid productivity reached 3.49g/L, 47.4% and 275.7mg/L/d, respectively. More importantly, EDTA addition (1.0×10-3g/L) could enhance the solubility of metal ions (iron and calcium) and increase their availability by microalgae, which evidently promote the lipid accumulation. Compared with the control, the total lipid content and lipid productivity increased 28.2% and 29.7%, respectively. These show that appropriate concentrations of metal ions and EDTA in the culture medium were beneficial to lipid accumulation of heterotrophic Scenedesmus sp. cells.

KW - Algal cultivation

KW - EDTA

KW - Heterotrophic

KW - Lipid accumulation

KW - Metal ion

UR - https://www.scopus.com/pages/publications/84907594946

U2 - 10.1016/j.biortech.2014.06.062

DO - 10.1016/j.biortech.2014.06.062

M3 - 文章

C2 - 25037828

AN - SCOPUS:84907594946

SN - 0960-8524

VL - 169

SP - 763

EP - 767

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Enhanced lipid accumulation of green microalga Scenedesmus sp. by metal ions and EDTA addition

Abstract

UN SDGs

Keywords

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