Identification of compendial nonionic detergents for the replacement of Triton X-100 in bioprocessing.

Alan K Hunter, Kamiyar Rezvani, Matthew T Aspelund, Guoling Xi, Dhanesh Gadre, Thomas Linke, Kang Cai, Sri Hari Raju Mulagapati, Tomasz Witkos

Biotechnology progress 2022 Mar

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We have systematically investigated six compendial nonionic detergents as potential replacements for Triton ×-100 in bioprocessing applications. Use of compendial raw materials in cGMP bioprocessing is advantageous for a variety of reasons including material specifications developed to meet stringent pharmaceutical product quality requirements, regulatory familiarity and comfort, and availability from vendors experienced supplying the biopharmaceutical industry. We first examine material properties of the detergents themselves including melting point and viscosity. Process performance and product contact in real-world bioprocess applications are then investigated. Lastly, we test the detergents in virus inactivation (VI) experiments with recombinant proteins and adeno-associated virus. Two of the detergents tested, PEG 9 Lauryl Ether and PEG 6 Caprylic/Capric Glycerides, showed favorable properties that make them attractive for use as potential Triton X-100 replacements. Process performance testing indicated negligible impact of the detergents on product yield, purity, and activity compared to a control with no detergent. Importantly, both PEG 9 Lauryl Ether and PEG 6 Caprylic/Capric Glycerides demonstrated very fast VI kinetics with complete inactivation of XMuLV observed in less than 1 min at a target 1% detergent concentration. Potential advantages and disadvantages of both candidate detergents for use in cGMP bioprocessing are summarized and discussed. © 2022 AstraZeneca. Biotechnology Progress published by Wiley Periodicals LLC on behalf of American Institute of Chemical Engineers.

Citation

Alan K Hunter, Kamiyar Rezvani, Matthew T Aspelund, Guoling Xi, Dhanesh Gadre, Thomas Linke, Kang Cai, Sri Hari Raju Mulagapati, Tomasz Witkos. Identification of compendial nonionic detergents for the replacement of Triton X-100 in bioprocessing. Biotechnology progress. 2022 Mar;38(2):e3235