The Reduction of Microbial Spoilage in Manufactured Products by the Joint Efforts of Manufacturers and Preservative Suppliers(PPT)

摘要

1. Are: 1.1 Single celled: various shapes (rods, cocci, etc.) 1.2 Very small: typical size 1 to 2.5 microns 2. Reproduce by binary fission-generation time typically 20 min. 3. Growth requirements: 3.1 Nutrients: carbon, nitrogen, trace elements 3.2 Oxygen: 3.2.1 Free dissolved (aerobic) 3.2.2 Combined (e.g. SO4) (anaerobic). 3.2.3 Water: "available" water essential