QUANTITATION OF NATURAL RUBBER LATEX PROTEINS: EVALUATION OF VARIOUS PROTEIN MEASUREMENT METHODS

Autor: Melvin E. Stratmeyer, Anthony Lamanna, Anne D. Lucas, Vesna Tomazic–Jezic
Rok vydání: 1999
Předmět:
Zdroj: Toxicology Methods. 9:153-164
ISSN: 1051-7235
Popis: The allergy to natural rubber latex (NRL) proteins is a significant occupational health hazard. The elimination or reduction of the water-soluble proteins from finished NRL products is oneapproach aimed at decreasing further sensitization and reactions to these allergens. To achieve this goal, a reliable protein measurement method is required. Several published and widely used methods for protein measurement in finished NRL products demonstrate major inconsistencies in the quantification of extractable NRL proteins in comparison to the Kjeldahl nitrogen assay and the gravimetrically determined reference. Multiple protein assays and several reference proteins were examined to determine the most suitable method for the quantitation of soluble NRL proteins. Among the reference proteins evaluated (BSA, BGG, and OA), OA was found to correlate best with gravimetrically determined levels of NRL proteins. Of the protein assays evaluated (Bradford, BCA, and Lowry), the modified Lowry assay demonstrated the best un...
Databáze: OpenAIRE