Surface tension measurements on filamentous broths

✍ Scribed by H. K. Kautola; D. G. Allen

• Book ID: 104644898
• Publisher: Springer-Verlag
• Year: 1994
• Tongue: English
• Weight: 257 KB
• Volume: 8
• Category: Article
• ISSN: 0951-208X
• DOI: 10.1007/bf00152845

✦ Synopsis

The surface tension of microorganisms is an important parameter in biotechnological processes. In this work contact angles and surface tensions were determined for filamentous micro-organisms Streptomyces levoris and A spergillus niger. The contact angles were 39.7" and 43.1", and the surface tensions 59.0 mJ/m2 and 57.3 mJ/m2, respectively. The contact angles for the tilamentous broths were measured with the axisymmetric drop shape analysis -contact diameter (ADSA-CD) method which is particularly well suited to rough surfaces. The contact angle results obtained were significantly larger than those earlier reported for bacteria.