Biotechnological Production of Acrylic Acid from Biomass

Danner, H; Ürmös, M.; Gartner, M.; Braun, Rudolf

doi:10.1007/978-1-4612-1814-2_82

Cited by 2 publications

(2 citation statements)

References 6 publications

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“…Initial concentrations of acrylic acid (0.05 to 0.5 mol kg −1 ) were prepared by using double distilled water. Low concentrations of acrylic acid were used because in fermentation broth acrylic acid concentration is not greater than 0.5 mol kg −1 . The initial concentrations of the extractant (TBP) dissolved in natural diluents were changed from 0.366 to 1.464 mol kg −1 .…”

Section: Methodsmentioning

confidence: 99%

Reactive extraction of acrylic acid with tri‐n‐butyl phosphate in natural oils

Kar

Bagde

Athankar

et al. 2017

J of Chemical Tech & Biotech

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BACKGROUND Acrylic acid has a wide range of applications in plastic additives, textiles, sealants, adhesives, and surface coatings industries. Owing to its widespread demand, production through a biotechnological method has emerged as low‐cost, energy‐efficient, environment friendly with few challenges at downstream stage. Reactive extraction is a promising method to recover carboxylic acid, but suffers from toxicity problems of the diluent and extractant employed. Therefore, there is a need for a nontoxic extractant and diluent or a combination of less toxic extractants in a nontoxic diluent that can recover acid efficiently. In this context, reactive extraction of acrylic acid from aqueous phase was employed with tri‐n‐butyl phosphate dissolved in natural diluents soybean oil, sunflower oil, and rice bran oil. RESULTS Reactive extraction results are discussed in terms of the partition coefficient (α), dimerization constant (β), distribution coefficient (KD), extraction efficiency (η%), overall equilibrium complexation constant (KE), and loading ratio (ϕs). Higher distribution coefficient and extraction efficiency range was found in tri‐n‐butyl phosphate (TBP) + sunflower oil as 0.672 to 2.019 and 39.76 to 66.49, respectively. Average extraction efficiency was in the range 30.85 to 71.94% for soybean oil, 39.76 to 66.49% for sunflower oil, and 31.27 to 69.42% for rice bran oil with 0.366 to 1.464 mol kg−1 of tri‐n‐butyl phosphate. CONCLUSION Sunflower oil with tri‐n‐butyl phosphate showed higher extraction efficiency for the reactive extraction of acrylic acid. The order of extraction efficiency was observed as: TBP+sunflower oil > TBP+soybean oil > TBP+rice bran oil. Since evasion of direct contact of the organism with the organic phase or use of nontoxic diluents can substantially reduce toxic effects, natural oils were used in the present study. Reactive extraction results can be employed for the design of extraction columns. © 2017 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Reactive extraction of acrylic acid with tri‐n‐butyl phosphate in natural oils

Kar

Bagde

Athankar

et al. 2017

J of Chemical Tech & Biotech

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“…The maximum yield in the absence of acrylic acid could be obtained at pH 7.0, which was also the optimal condition for C. propionicum growth. The oxidation pathway results in the formation of acetic acid and ATP, while the reduction product propionic acid is required for the redox equilibrium [4]. Prior study showed that C. propionicum could convert 3 M l-alanine to 1 M acetic acid and 2 M propionic acid [5].…”

Section: Effect Of Acrylic Acid On the Metabolite Production Of C Prmentioning

confidence: 99%

Toxic effects of acrylic acid on Clostridium propionicum and isolation of acrylic acid‐tolerant mutants for production of acrylic acid

Wei

Cai

Zhu

et al. 2012

Engineering in Life Sciences

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This work presents a systematic investigation of the toxic effects of acrylic acid on the growth of Clostridium propionicum and the isolation of acrylic acid‐tolerant mutants. The results suggest that addition of acrylic acid prolonged the lag phase of the fermentation and reduced the initial‐specific growth rate, as well as the final cell concentration. Moreover, the toxic effect of acrylic acid was sensitive to the pH value. The minimal inhibition concentration of acrylic acid increased from 1.11 to 31.25 mM when the pH value rose from 5.8 to 7.4. In addition, the molar concentration ratio of products (acetic acid:propionic acid) was enhanced with the supplementation of acrylic acid. The highest ratio was 0.7:1 when acrylic acid was 20.83 mM at pH 7.4. Two acrylic acid‐tolerant mutants were isolated, which could still grow at a high concentration (43.06 mM) of acrylic acid. These strains could be instrumental for improved bioproduction of acrylic acid.

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Biotechnological Production of Acrylic Acid from Biomass

Cited by 2 publications

References 6 publications

Reactive extraction of acrylic acid with tri‐n‐butyl phosphate in natural oils

Reactive extraction of acrylic acid with tri‐n‐butyl phosphate in natural oils

Toxic effects of acrylic acid on Clostridium propionicum and isolation of acrylic acid‐tolerant mutants for production of acrylic acid

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