Abstract:
:To address the problem of marine pollution from discarded plastics, we developed a highly biodegradable woody film, with almost the same components as wood, from the formic acid solution of ball-milled wood. We found that the woody film was not easily degraded by cultured solution of hand bacteria (phylum Proteobacteria was dominant). However, the film was easily biodegraded when in cultured solution of soil (Firmicutes, especially class Bacilli, was dominant) for 4 weeks at 37 °C, or when buried in the soil itself, both under aerobic conditions (Acidobacteria and Proteobacteria were dominant) for 40 days at room temperature and under anaerobic conditions (Firmicutes, especially family Ruminococcaceae, was dominant) for 5 weeks at 37 °C. Moreover, when film was buried in the soil, more carbon dioxide was generated than from soil alone. Therefore, the film was not only brittle but formed of decomposable organic matter. We showed that the film does not decompose at the time of use when touched by the hand, but it decomposes easily when buried in the soil after use. We suggest that this biodegradable woody film can be used as a sustainable raw material in the future.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Nishiwaki-Akine Y,Kanazawa S,Matsuura N,Yamamoto-Ikemoto Rdoi
10.1038/s41598-019-57228-7subject
Has Abstractpub_date
2020-01-16 00:00:00pages
476issue
1issn
2045-2322pii
10.1038/s41598-019-57228-7journal_volume
10pub_type
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