Summary
New copolyesters of 3-hydroxybutyrate (3HB) and 4-hydroxybutyrate (4HB) were produced by Alcaligenes eutrophus from various carbon sources of 4-hydroxybutyric acid, 4-chlorobutyric acid, 1,4-butanediol, and γ-butyrolactone. The composition of copolyesters varied from 0 to 37 mol% 4HB, depending on the carbon sources supplied. The biosynthetic pathway of copolyesters has been discussed. The copolyester film was biodegradable in soil and activated sludge. The rate of biodegradation was enhanced by the presence of 4HB units.
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Kunioka, M., Kawaguchi, Y. & Doi, Y. Production of biodegradable copolyesters of 3-hydroxybutyrate and 4-hydroxybutyrate by Alcaligenes eutrophus . Appl Microbiol Biotechnol 30, 569–573 (1989). https://doi.org/10.1007/BF00255361
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DOI: https://doi.org/10.1007/BF00255361