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Guzman ML, Marques MR, Olivera Me ME, et al. Enzymatic activity in the presence of surfactants commonly used in dissolution media, Part 1: Pepsin. Results Pharma Sci. 2016;6:15-9doi: 10.1016/j.rinphs.2016.02.002.
Guzman, M. L., Marques, M. R., Olivera Me, M. E., & Stippler, E. S. (2016). Enzymatic activity in the presence of surfactants commonly used in dissolution media, Part 1: Pepsin. Results in pharma sciences, 615-9. https://doi.org/10.1016/j.rinphs.2016.02.002
Guzman, Maria L, et al. "Enzymatic activity in the presence of surfactants commonly used in dissolution media, Part 1: Pepsin." Results in pharma sciences vol. 6 (2016): 15-9. doi: https://doi.org/10.1016/j.rinphs.2016.02.002
Guzman ML, Marques MR, Olivera Me ME, Stippler ES. Enzymatic activity in the presence of surfactants commonly used in dissolution media, Part 1: Pepsin. Results Pharma Sci. 2016 Mar 02;6:15-9. doi: 10.1016/j.rinphs.2016.02.002. eCollection 2016. PMID: 27047734; PMCID: PMC4796717.
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Results Pharma Sci. 2016 Mar 02;6:15-9. doi: 10.1016/j.rinphs.2016.02.002. eCollection 2016.

Enzymatic activity in the presence of surfactants commonly used in dissolution media, Part 1: Pepsin.

Results in pharma sciences

Maria L Guzman, Margareth R Marques, Maria E Olivera Me, Erika S Stippler

Affiliations

  1. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Argentina; Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina; U.S. Pharmacopeial Convention, Rockville, MD, USA.
  2. U.S. Pharmacopeial Convention, Rockville, MD, USA.
  3. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET, Argentina; Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Argentina.

PMID: 27047734 PMCID: PMC4796717 DOI: 10.1016/j.rinphs.2016.02.002

Abstract

The United States Pharmacopeia (USP) General Chapters Dissolution 〈711〉 and Disintegration and Dissolution of Dietary Supplements 〈2040〉 allows the use of enzymes in dissolution media when gelatin capsules do not conform to dissolution specifications due to cross linking. Possible interactions between enzymes and surfactants when used together in dissolution media could result in loss of the enzymatic activity. Pepsin is an enzyme commonly used in dissolution media, and in this work, the activity of pepsin was determined in the presence of different surfactants as usually found in case of dissolution tests of certain gelatin capsule formulations. Pepsin enzymatic activity was determined according to the Ninth Edition of the Food Chemicals Codex (FCC) 9 method, in dissolution conditions: simulated gastric fluid, 37 °C and 50 rpm. Sodium dodecyl sulfate (SDS), cetyltrimethyl ammonium bromide (CTAB), polysorbate 80 (Tween 80) and octoxynol 9 (Triton X100) in concentrations above and below their critical micellar concentrations were selected. Results showed a significant reduction in the activity of pepsin at all the concentrations of SDS assayed. On the contrary, CTAB, Tween 80, and Triton X100 did not alter the enzymatic activity at of pepsin any of the concentration assayed. This data demonstrates a rational selection of the surfactant to be used when pepsin is required in dissolution test.

Keywords: Dissolution test; Enzymes; Pepsin; Surfactants

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