Green Biorefinery: Separation of lactic acid from grass silage juice by chromatography using neutral polymeric resin

Thang, Vu Hong; Novalin, Senad

doi:10.1016/j.biortech.2007.08.045

Cited by 62 publications

(38 citation statements)

References 21 publications

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“…The common unit used in preparative chromatography is the bed volume (BV) [13][14][15]. It corresponds to the ratio of the total eluted volume to the resin bed volume.…”

Section: Theory Of Chromatographymentioning

confidence: 99%

Purification of organic acids by chromatography: Adsorption isotherms and impact of elution flow rate

Blanc

Theoleyre

Lutin³

et al. 2015

Separation and Purification Technology

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“…The common unit used in preparative chromatography is the bed volume (BV) [13][14][15]. It corresponds to the ratio of the total eluted volume to the resin bed volume.…”

Section: Theory Of Chromatographymentioning

confidence: 99%

Purification of organic acids by chromatography: Adsorption isotherms and impact of elution flow rate

Blanc

Theoleyre

Lutin³

et al. 2015

Separation and Purification Technology

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“…Lactic acid is usually recovered from the fermentation broth via hydrophobic interactions with a neutral poly(styrene-co-DVB) resin at pH 2.0, as reported by Thang and Novalin [34]. In addition, Nielsen et al [23] found that the adsorption of organic acids onto GAC or weakly basic anionic resins like Amberlite ® IRA-67 is dominated at a pH below the pK a value of the acids, which was also observed for the RLX425 resin in this study (Figure 1b).…”

Section: Effect Of Ph and Adsorbent Dose On The Lactic Acid Adsorptiomentioning

confidence: 99%

Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies

et al. 2017

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Solid-liquid extraction (adsorption or ion exchange) is a promising approach for the in situ separation of organic acids from fermentation broths. In this study, a diluted concentration of lactic acid (<10 g/L) separation from a model fermentation broth by granular activated carbon (GAC) as well as weak (Reillex ® 425 or RLX425) and strong (Amberlite ® IRA-400 or AMB400) base anion exchange resins under various operating conditions was experimentally investigated. Thermodynamic analysis showed that the best lactic acid adsorption performances were obtained at a pH below the pK a value of lactic acid (i.e., 3.86) for GAC and RLX425 by physical adsorption mechanism and above the pK a value for the AMB400 resin by an ion exchange mechanism, respectively. The adsorption capacity for GAC (38.2 mg/g) was the highest, followed by AMB400 (31.2 mg/g) and RLX425 (17.2 mg/g). As per the thermodynamic analysis, the lactic acid adsorbed onto GAC and RLX425 through a physical adsorption mechanism, whereas the lactic acid adsorbed onto AMB400 with an ion exchange mechanism. The Langmuir adsorption isotherm model (R 2 > 0.96) and the pseudo-second order kinetic model (R 2~1 ) fitted better to the experimental data than the other models tested. Postulating the conditions for the real fermentation broth (pH: 5.0-6.5 and temperature: 30-80 • C), the resin AMB400 represents an ideal candidate for the extraction of lactic acid during fermentation.

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“…dried) prior to (long-term) storage. The Austrian Green Biorefinery, for example, tackles this problem by processing not only direct-cut grasses, but also silage, which can be prepared in the growing season and stored in a silo (Koschuh et al, 2005;Thang and Novalin, 2007).…”

Section: Productsmentioning

confidence: 99%

The Biorefinery Concept–An Integrated Approach

Clark

Deswarte

2008

Introduction to Chemicals From Biomass

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Green Biorefinery: Separation of lactic acid from grass silage juice by chromatography using neutral polymeric resin

Cited by 62 publications

References 21 publications

Purification of organic acids by chromatography: Adsorption isotherms and impact of elution flow rate

Purification of organic acids by chromatography: Adsorption isotherms and impact of elution flow rate

Adsorption Behaviour of Lactic Acid on Granular Activated Carbon and Anionic Resins: Thermodynamics, Isotherms and Kinetic Studies

The Biorefinery Concept–An Integrated Approach

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