铁质
铁
生物柴油
硫酸盐
化学
生物柴油生产
氯化物
生物燃料
食品科学
硫酸铁
乙二胺四乙酸
生物量(生态学)
生物化学
无机化学
螯合作用
有机化学
生物
生物技术
农学
催化作用
作者
Ece Polat,Ebubekir Yüksel,Mahmut Altınbaş
标识
DOI:10.1016/j.renene.2020.09.030
摘要
In this study, iron sources and their optimum concentrations for high-quality biodiesel production were determined on Auxenochlorella protothecoides microalgae. Three iron compounds—ferrous sulfate, ferric ethylenediaminetetraacetic acid (EDTA), and ferric chloride—were assessed regarding concentration, specific growth rate, lipid, and lipid quality in relation to fatty acid methyl ester (FAME) composition of microalgal biomass. Auxenochlorella protothecoides demonstrated high resistivity to high concentrations of iron species, still showing an ability to grow in the presence of iron concentrations as high as 21.60 mM. The highest saturated fatty acid (SFA), at 78.5% of FAME, was observed at 1.15 mM ferric chloride, and the highest biomass generation was observed at 1.08 mM ferrous sulfate. In addition, biodiesel and diesel fuel qualities were satisfactory with microalgae cultivated at 0.2 and 14.4 mM ferrous sulfate, 7.19 mM ferric EDTA, and 0.07–21.58 mM ferric chloride concentrations. The former may be more practical, since the use of this iron compound gives the desired result in a broader range. Overall, it can be inferred that high-quality lipid and biodiesel production can be obtained by changing the concentrations and sources of iron compounds.
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