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Biodegradation of gelatin graft copolymers. IV

✍ Scribed by G. Sudesh Kumar; V. Kalpagam; U. S. Nandi

Publisher: John Wiley and Sons
Year: 1985
Tongue: English
Weight: 448 KB
Volume: 30
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1985.070300303

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✦ Synopsis

Gelatin graft copolymers of different compositions were tested for microbial susceptibility in a synthetic medium with pure cultures of Pseudomonas aerugima, Bacillus subtilis, and Sermtia marcescens. The percent weight losses were recorded over 6 weeks of incubation period in nitrogen-free and nitrogen-rich media. The relationship between [log(rate)] during the first week of the test period and composition of the grafted samples showed a linear behavior.

There was no difference in the aggressivity of these bacterial strains. Nitrogen analysis data and pH measurements of the media seem to reinforce our earlier observations. Soil burial tests also indicate degradation of polymer samples under natural weathering conditions. This article also summarizes the salient features of our series of investigations.

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