Methacrylonitrile-based adsorbents for recovery of VFAs from fermentation broth

IF 2.8 4区 生物学 Q3 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Journal of chemical technology and biotechnology Pub Date : 2024-07-10 DOI:10.1002/jctb.7701
Vahideh Elhami, Sylwia Ronka, Boelo Schuur
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Abstract

BACKGROUND

Adsorption is a promising affinity separation technique to target a sorbate in extremely dilute solutions. In this work, methacrylonitrile (MAN)-functionalized resins were investigated to recover volatile fatty acids (VFAs) from a mimicked fermentation broth as an alternative for the already known amine-based resins and non-functionalized poly(styrene-divinylbenzene) (PS-DVB), aiming for high VFA capacity and selectivity.

RESULTS

Next to comparison with commercial PS-DVB resin, also several PS-DVB resins were synthesized as non-functionalized analogues for the new MAN-functionalized resins. For MAN-functionalized resins, the maximum equilibrium VFA loading of about 153 (g acid/kg adsorbent) was found, which is higher than the 125 (g acid/kg adsorbent) for the PS-DVB non-functionalized resins. The water uptake of the PS-DVB resins was with 0.53–0.87 (g water/g adsorbent) significantly lower than for the MAN-DVB resins taking up 0.99–1.85 (g water/g adsorbent).

CONCLUSION

Overall, the MAN-functionalized adsorbents retained higher loading capacity for corresponding acid, compared to the PS-DVB resins, while also taking in more water. Acid uptake is due to the hydrogen bonding between the nitrile groups of the resins with carboxyl group of the acids. Moreover, none of the adsorbents displayed an affinity towards the salts present in the fermentation broth. © 2024 The Author(s). Journal of Chemical Technology and Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry (SCI).

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用于从发酵液中回收挥发性脂肪酸的甲基丙烯酸甲酯基吸附剂
背景吸附法是一种很有前途的亲和分离技术,可以在极稀溶液中吸附目标吸附剂。在这项工作中,研究了甲基丙烯腈(MAN)官能化树脂从模拟发酵液中回收挥发性脂肪酸(VFAs),以替代已知的胺基树脂和非官能化聚(苯乙烯-二乙烯基苯)(PS-DVB),目的是获得高挥发性脂肪酸容量和选择性。结果 除了与商用 PS-DVB 树脂进行比较外,还合成了几种 PS-DVB 树脂,作为新型 MAN 功能化树脂的非功能化类似物。发现 MAN 功能化树脂的最大平衡 VFA 负荷约为 153(克酸/千克吸附剂),高于 PS-DVB 非功能化树脂的 125(克酸/千克吸附剂)。PS-DVB 树脂的吸水率为 0.53-0.87(克水/克吸附剂),明显低于 MAN-DVB 树脂的吸水率 0.99-1.85(克水/克吸附剂)。酸的吸收是由于树脂的腈基与酸的羧基之间的氢键作用。此外,没有一种吸附剂对发酵液中的盐类具有亲和力。© 2024 作者。化学技术和生物技术期刊》由约翰威利和桑斯有限公司代表化学工业学会(SCI)出版。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
7.00
自引率
5.90%
发文量
268
审稿时长
1.7 months
期刊介绍: Journal of Chemical Technology and Biotechnology(JCTB) is an international, inter-disciplinary peer-reviewed journal concerned with the application of scientific discoveries and advancements in chemical and biological technology that aim towards economically and environmentally sustainable industrial processes.
期刊最新文献
Issue Information In Focus: Materials and the Environment Symposium (XXXI IMRC México) Issue Information Adsorption behavior of graphite‐like walnut shell biochar modified with ammonia for ciprofloxacin in aqueous solution Eco‐friendly approaches for synthesis of indolyl 1H‐pyrroles using rice‐husk‐derived carbonaceous sulfonation as the green catalyst
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