L(+)-Lactic acid recovery from cassava bagasse based fermented medium using anion exchange resins

Nampoothiri, K. Madhavan; Pandey, Ashok

doi:10.1590/s1516-89132008000600020

Cited by 32 publications

(19 citation statements)

References 25 publications

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“…PLA is a biodegradable polymer of lactic acid produced from renewable resources, which can replace various petrochemical industry based polymers in applications ranging from packaging to fibers (Wee et al, 2006). Another important feature is the biocompatibility of PLA that makes it applicable in the medical field (John et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Application of the biorefinery concept to produce l-lactic acid from the soybean vinasse at laboratory and pilot scale

Karp

Igashiyama

Siqueira

et al. 2011

Bioresource Technology

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Section: Introductionmentioning

confidence: 99%

Application of the biorefinery concept to produce l-lactic acid from the soybean vinasse at laboratory and pilot scale

Karp

Igashiyama

Siqueira

et al. 2011

Bioresource Technology

Self Cite

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“…However, at industrial level the production of lactic acid currently proceeds through the fermentation of saccharides, at low concentrations and with other type of impurities (including broth nutrients, cells, cell debris and other biologically‐derived molecules). In this case, several studies have been reported in the literature for the recovery of lactic acid, including reactive extraction, electrodialysis, separation with membranes and ion exchange adsorption . However, in reactive extraction, large amounts of possibly toxic solvents are required.…”

Section: Separation Of Lactic Acid By Ion Exchangementioning

confidence: 99%

“…Although the principles of separation of organic acids by ion exchange chromatography are well known, several studies report that there are still some details that need to be developed in particular systems . Such an effort seems to be justified because the technology based on ion exchange is a method that allows obtaining pure products in a single adsorption/desorption unit, making possible the integration of the product biosynthesis process with the separation and purification …”

Section: Separation Of Lactic Acid By Ion Exchangementioning

confidence: 99%

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Glycerol valorization: conversion to lactic acid by heterogeneous catalysis and separation by ion exchange chromatography

Arcanjo

Silva

Cavalcante

et al. 2019

Biofuels Bioprod Bioref

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The consumption and production of biodiesel has grown dramatically in recent decades, motivated by a strong interest in renewable energy. This has generated a surplus of its main by‐product, glycerol. Several catalytic processes have been proposed to generate alternatives for using this excess glycerol, mainly focusing on its transformation into high value‐added chemical products. Various products, ranging from syngas to organic acids, such as acrylic or lactic acid, along with 1,2‐propanediol, 1,3‐propanediol, glycerol ethers or even polymers, have been produced starting from glycerol. Among this multitude of possibilities, the production of lactic acid is one of the most interesting alternatives to valorize glycerol, because of the wide range of applications described for this organic acid. This review focuses on recent studies dealing with the catalytic conversion of glycerol to lactic acid, using different heterogeneous catalysts, and evaluates the factors influencing the oxidation catalytic process and the proposed reaction mechanisms. Finally, recent studies on the separation and purification of lactic acid using ion exchange chromatography resins are also reported. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…In terms of process operation, in-house electrodialysis was performed in one step, and therefore, was a much simpler operation compared to the fixed-bed anion exchanger [17]. In addition, NaOH solution used in in-house electrodialysis can be reused from batch to batch while the eluants used in an ion exchanger are consumed during the operation and must be treated before disposal [18]. This has made fixed-bed anion exchangers economically unattractive compared to in-house electrodialysis.…”

Section: Separation Process Comparisonmentioning

confidence: 99%

Comparison of an Ion Exchanger and an In‐House Electrodialysis Unit for Recovery of L‐Lactic Acid from Fungal Fermentation Broth

et al. 2009

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Lactic acid has long been widely used in many applications. Currently, the worldwide market is increasing due to the discovery of biodegradable polylactic acid. In this work, L-lactic acid separations from filamentous fungal fermentation broth using ion-exchange chromatography and in-house electrodialysis, were studied and compared. Dowex Marathon WBA was used for the lactic acid separation. The adsorption equilibrium followed a Langmuir isotherm. The optimal conditions for lactic acid adsorption in a fixed-bed column were at pH 6.0, and 0.8 mL/min and elution by a mixture of 1.0 M sulfuric acid and 1.0 M phosphoric acid in a ratio of 30:70 at 0.3 mL/min. The final lactic acid recovery was 76 % with 90 % purity. A laboratory scale in-house electrodialysis apparatus was constructed with an effective membrane area of 2.925 · 10 -3 m 2 . The effects of feeding solution concentration, flow rate, pH of the fermentation broth, and applicable voltage were studied. Under the optimal conditions, lactic acid recovery was 92 % with 100 % purity and a specific energy consumption of 0.6122 kWh/kg.

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L(+)-Lactic acid recovery from cassava bagasse based fermented medium using anion exchange resins

Abstract: ABSTRACT

Cited by 32 publications

References 25 publications

Application of the biorefinery concept to produce l-lactic acid from the soybean vinasse at laboratory and pilot scale

Application of the biorefinery concept to produce l-lactic acid from the soybean vinasse at laboratory and pilot scale

Glycerol valorization: conversion to lactic acid by heterogeneous catalysis and separation by ion exchange chromatography

Comparison of an Ion Exchanger and an In‐House Electrodialysis Unit for Recovery of L‐Lactic Acid from Fungal Fermentation Broth

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