Effects of anionic surfactant on extraction of free fatty acid from Chlorella vulgaris

Park, Jiyeon; Nam, Bora; Choi, Suna; Oh, You-Kwan; Lee, Jin-Suk

doi:10.1016/j.biortech.2014.05.098

Cited by 26 publications

(10 citation statements)

References 14 publications

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“…They conducted additional experiments on the effect of including SDBS in H2SO4 for FAME production from the pre-extracted algal oil through a two-step transesterification. In better words, the approach used by Park et al (2014) involved making biodiesel from preextracted algal oil which is fundamentally different from the single step transesterification ("in situ transesterification") reported in this study.…”

Section: Effect Of Inclusion Of Sds In H2so4 On Water Tolerancementioning

confidence: 83%

“…However, the inclusion of SDS in H2SO4 produced greater FAME yields than H2SO4 alone at each moisture content as shown in Figure 4. Park et al (2014) has shown that the inclusion of sodium dodecyl benzene sulfonate (SDBS) in H2SO4 enhanced the extraction of FFAs and lipids from Chlorella. They also reported that SDS did not produce the same corresponding enhancement as SDBS (Park et al, 2014).…”

Section: Effect Of Inclusion Of Sds In H2so4 On Water Tolerancementioning

confidence: 99%

“…Park et al (2014) has shown that the inclusion of sodium dodecyl benzene sulfonate (SDBS) in H2SO4 enhanced the extraction of FFAs and lipids from Chlorella. They also reported that SDS did not produce the same corresponding enhancement as SDBS (Park et al, 2014). It should be noted that their experiments were fundamentally different from what is reported herein.…”

Section: Effect Of Inclusion Of Sds In H2so4 On Water Tolerancementioning

confidence: 99%

“…Similarly, use of cetyltrimethylammonium bromide (CTAB) (a cationic surfactant) with an alkali catalyst resulted in an increased FAME yield and reduction in catalyst concentration during in situ transesterification of Jatropha curcas by acting as a phase transfer catalyst (Hailegiorgis et al, 2011). Park et al (2014) reported that inclusion of sodium dodecyl benzene sulfonate (SDBS) in H2SO4-catalysed hot water enhanced extraction of FFA and lipids from Chlorella vulgaris. They reported that the inclusion of SDBS in H2SO4 significantly reduced the amount of H2SO4 required to convert the pre-extracted algal oil into FAME using a two-step transesterification.…”

Section: Introductionmentioning

confidence: 99%

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Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction

2016

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Please cite this article as: Salam K.A., Velasquez-Orta S.B., Harvey A.P. Effect Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction. Biofuel Research Journal 9 (2016) HIGHLIGHTSSurfactant assisted in situ transesterification of wet algae was studied.A surfactant catalyst ("ZDS") produced high yields in Nannochloropsis occulata.Inclusion of SDS in increased FAME production in the wet algae.The process was not adversely affected by water in the algae up to 20%. This article reports an in situ transesterification/reactive extraction of Nannochloropsis occulata for fatty acid methyl ester (FAME) production using H2SO4, sodium dodecyl sulphate (SDS) plus H2SO4 and zirconium dodecyl sulphate (ZDS). A maximum 67 % FAME yield was produced by ZDS. Effect of inclusion of sodium dodecyl sulphate (SDS) in H2SO4 for FAME enhancement and water tolerance was also studied by hydrating the algae with 10 % -30 % distilled water (w/w) dry algae. Treatment with SDS in H2SO4 increases the FAME production rate and water tolerance of the process. Inclusion of SDS in H2SO4 produced a maximum 98.3 % FAME yield at 20 % moisture in the algae. The FAME concentration began to diminish only at 30 % moisture in the algae. Furthermore, the presence of a small amount of water in the biomass or methanol increased the lipid extraction efficiency, improving the FAME yield, rather than inhibiting the reaction. ARTICLE INFO ABSTRACT

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Section: Effect Of Inclusion Of Sds In H2so4 On Water Tolerancementioning

confidence: 83%

Section: Effect Of Inclusion Of Sds In H2so4 On Water Tolerancementioning

confidence: 99%

Section: Effect Of Inclusion Of Sds In H2so4 On Water Tolerancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction

2016

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“…Sodium dodecyl benzene sulfonate (SDBS) along with the catalyst H 2 SO 4 also enhanced extraction of FFA and lipids from microalgae. SDBS significantly reduced the catalyst concentration required to convert the oil to FAMEs (Park et al, 2014). N-Lauroyl sarcosine (N-LS), an anionic detergent is non toxic and biodegradable.…”

Section: Introductionmentioning

confidence: 99%

Detergent assisted ultrasonication aided in situ transesterification for biodiesel production from oleaginous yeast wet biomass

Yellapu

Kaur

Tyagi

2017

Bioresource Technology

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In situ transesterification of oleaginous yeast wet biomass for fatty acid methyl esters (FAMEs) production using acid catalyst, methanol with or without N-Lauroyl sarcosine (N-LS) treatment was performed. The maximum FAMEs yield obtained with or without N-LS treatment in 24h reaction time was 96.1±1.9 and 71±1.4% w/w, respectively. The N-LS treatment of biomass followed by with or without ultrasonication revealed maximum FAMEs yield of 94.3±1.9% and 82.9±1.8% w/w using methanol to lipid molar ratio 360:1 and catalyst concentration 360mM (64μL HSO/g lipid) within 5 and 25min reaction time, respectively. The FAMEs composition obtained in in situ transesterification was similar to that obtained with conventional two step lipid extraction and transesterification process. Biodiesel fuel properties (density, kinematic viscosity, cetane number and total glycerol) were in accordance with international standard (ASTM D6751), which suggests the suitability of biodiesel as a fuel.

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Microalgae disruption techniques for product recovery: influence of cell wall composition

2018

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Effects of anionic surfactant on extraction of free fatty acid from Chlorella vulgaris

Cited by 26 publications

References 14 publications

Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction

Surfactant-assisted direct biodiesel production from wet Nannochloropsis occulata by in situ transesterification/reactive extraction

Detergent assisted ultrasonication aided in situ transesterification for biodiesel production from oleaginous yeast wet biomass

Microalgae disruption techniques for product recovery: influence of cell wall composition

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