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Study on ozone treatment of water‐soluble polymers. II. Utilization of ozonized polyethylene glycol by bacteria
Author(s) -
Suzuki Junzo,
Nakagawa Hisako,
Ito Haruo
Publication year - 1976
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1976.070201013
Subject(s) - polyethylene glycol , diethylene glycol , triethylene glycol , chemistry , ethylene glycol , hydrogen peroxide , ozone , peg ratio , polymer , nuclear chemistry , disinfectant , polyvinyl alcohol , formaldehyde , polymer chemistry , organic chemistry , finance , economics
A bacterium capable of utilizing polyethylene glycol of low molecular weight (less than 300) was isolated from soil and identified as Pseudomonas aeruginosa by biologic characteristics (named P. aeruginosa PEG‐K). The effect of ozone degradation on the utilization of polyethylene glycol of high molecular weight by the bacterium was studied on the basis of the measurement of oxygen uptake by Warburg manometer and of bacterial growth. The polyethylene glycol, which can never be utilized at all because of high molecular weight, became utilizable by the bacterium as a result of ozonization, while the formaldehyde produced by the ozonization inhibited the utilization of the ozonized polyethylene glycol by the same bacterium. However, such inhibition disappeared by treating the aldehyde with hydrogen peroxide. From the results of gas chromatography and measurement of chemical oxygen demand, P. aeruginosa PEG‐K was found to utilize ethylene glycol, diethylene glycol, and triethylene glycol, which were produced by the ozonization.