Effects of Marine Sand on the Microbial Degradation of Biodegradable Plastics in Seawater and Biofilm Communities that Formed on Plastic Surfaces

Four types of biodegradable plastics were evaluated for their biodegradability in seawater collected at Ajigaura coast, Japan, in the presence or absence of marine sand. One of the plastics, poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH), showed a degree of biodegradation in a seawater sample,...

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Bibliographic Details
Published in:Microbes and Environments 2022, Vol.37(4), pp.ME22047
Main Authors: Morohoshi, Tomohiro, Taniguchi, Asuka, Sugawara, Ami, Suzuki, Tomohiro, Sato, Shunsuke
Format: Article
Language:English
Subjects:
biodegradable plastic
biofilm
marine sand
poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)
seawater
Short Communication
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Summary:Four types of biodegradable plastics were evaluated for their biodegradability in seawater collected at Ajigaura coast, Japan, in the presence or absence of marine sand. One of the plastics, poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBH), showed a degree of biodegradation in a seawater sample, and the addition of marine sand markedly accelerated its biodegradation. The addition of marine sand did not affect the bacterial composition of the biofilm that formed on PHBH, and the family Rhodobacteraceae, which was predicted to contribute to the degradation of PHBH, was dominant in biofilm communities regardless of the addition of marine sand. Marine sand may serve as a bacterial source, resulting in the accelerated degradation of PHBH.
ISSN:1342-6311
1347-4405
DOI:10.1264/jsme2.ME22047