Diluent Alternatives for Reactive Extraction of Organic Acids from Aqueous Mediums


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Yılmazoğlu E.

3. International Conference on Research of Agricultural and Food Technologies, Adana, Türkiye, 4 - 06 Ekim 2023, cilt.1, ss.23, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Adana
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.23
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

Pollutions in the fermentation broths caused by organic acid production is a significant problem. Reactive extraction of organic acids from the aqueous medium is a preferable method comparing with other conventional and insufficient or modern and expensive ways. Major advantages of reactive extraction are wide range of extractants, utilizing at various temperature or pH conditions, higher effectiveness, shorter process times and lower cost and equipment requirements. Using diluents in reactive extraction processes is also another advantage for decreasing cost, especially. Although different diluents alone cannot be effective enough, concomitant use of an extractant and a diluent may upgrade the process via modifying the physicochemical features such as viscosity, density, surface tension, hydrophilicity/hydrophobicity, polarity, bonding, functional groups, etc. Diluents for reactive extraction can be inert or active. While the compounds without functional groups are generally inert diluents, other organic compounds are active diluents. Ionic liquids (ILs) that consist of organic cations and organic/inorganic anions can be designed in a broad variety. This type of diluents is choosing for different processes even though their higher prices. Deep eutectic liquids are the newer, green electrolyte class and have some benefit compared by ILs. For example, being less harmful, less expensive, having possibility of produced with different quaternary ammonium and metallic salts in different forms like gels. Vegetable oils can be used to dilute the extractant. Thanks to their hydrocarbon chains in various lengths, these low-polarity organic compound mixtures do not damage to the microorganisms using in the processes. They also keep the efficiency above.