Stomaching: a New Concept in Bacteriological Sample Preparation

摘要: An entirely new mixing device, particularly suitable for preparing bacterial suspensions from foods, fabrics, swabs, and other fairly soft materials, has been developed. With this technique the sample diluent are put into an inexpensive, sterile plastic bag which is vigorously pounded on its outer surfaces by paddles when placed inside machine. The resulting compression shearing forces effectively remove even deep-seated bacteria. After samples taken analysis remaining contents thrown away. Labor involved in cleaning sterilizing reusable homogenizer cups or probes eliminated, device immediately ready reuse. Running costs thus drastically reduced, compared with conventional homogenizers. Additional advantages of simple inexpensive to manufacture, low noise level, negligible temperature rise, small storage space required bags. Images