| abstract |
Cystein and/or cystein derivs. can be used to control bioslimes in liq. conveying systems of technical parts. Pref. L-cystein, N-acetyl-L-cystein, S-acetyl-L-cystein and/or N,S-diacetyl-L-cystein are used, pref. in a concn. of 50-5000 ppm, esp. 750-1000 ppm. Pref. a microbicide, is chosen from aldehydic cpds., quat. ammonium cpds., phenolic cpds. and/or isothiazolinone derivs., is used in conjunction with the cystein (deriv.). An agent for combatting bioslimes pref. contains 0.5-75 (esp. 2-50) wt.% cystein and/or cystein deriv. and 0.5-50 (esp. 1-20) wt.% of the microbicide. |