Environmental biodegradation of haloarchaea-produced poly(3-hydroxybutyrate-co-3-hydroxyvalerate) in activated sludge
文献类型：期刊论文
| 作者 | Liu, Xiao-Bin1,2; Wu, Lin-Ping3,4; Hou, Jing5; Chen, Jun-Yu1,2; Han, Jing1; Xiang, Hua1 |
| 刊名 | Applied microbiology and biotechnology
 |
| 出版日期 | 2016-08-01 |
| 卷号 | 100期号:15页码:6893-6902 |
| 关键词 | Haloarchaea Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Environmental biodegradation Bioerosion Depolymerase |
| ISSN号 | 0175-7598 |
| DOI | 10.1007/s00253-016-7528-2 |
| 通讯作者 | Han, jing(hanjing@im.ac.cn) ; Xiang, hua(xiangh@im.ac.cn) |
| 英文摘要 | Novel poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (phbhv) copolymers produced by haloarchaea are excellent candidate biomaterials. however, there is no report hitherto focusing on the biodegradation of phbhv synthesized by haloarchaea. in this study, an environmental biodegradation of haloarchaea-produced phbhv films, with 10 similar to 60 mol% 3-hydroxyvalerate (3hv) composition and different microchemical structures, was studied in nutrition-depleted activated sludge. the changes in mass, molar mass, chemical composition, thermal properties, and surface morphology were monitored. the mass and molar mass of each film decreased significantly, while the pha monomer composition remained unchanged with time. interestingly, the sample of random copolymer phbhv-2 (r-phbhv-2) (3hv, 30 mol%) had the lowest crystallinity and was degraded faster than r-phbhv-3 containing the highest 3hv content or the higher-order copolymer phbhv-1 (o-phbhv-1) possessing the highest surface roughness. the order of biodegradation rate was in the opposite trend to the degree of crystallizability of the films. meanwhile, thermal degradation temperature of most films decreased after biodegradation. additionally, the surface erosion of films was confirmed by scanning electron microscopy. the dominant bacteria probably responsible for the degradation process were identified in the activated sludge. it was inferred that the degradation rate of haloarchaea-produced phbhv films mainly depended on sample crystallinity, which was determined by monomer composition and microchemical structure and in turn strongly influenced surface morphology. |
| WOS关键词 | HYDROXYBUTYRATE-HYDROXYVALERATE COPOLYMERS ; SCANNING-ELECTRON-MICROSCOPY ; PSEUDOMONAS-LEMOIGNEI ; MICROBIAL-DEGRADATION ; BACTERIAL POLY(BETA-HYDROXYBUTYRATE-CO-BETA-HYDROXYVALERATE) ; POLYHYDROXYALKANOATE PHA ; HALOFERAX-MEDITERRANEI ; ENZYMATIC DEGRADATION ; IN-VITRO ; POLY(3-HYDROXYBUTYRATE) |
| WOS研究方向 | Biotechnology & Applied Microbiology |
| WOS类目 | Biotechnology & Applied Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:000379317300032 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374632 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Han, Jing; Xiang, Hua |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Microbial Resources, Inst Microbiol, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Copenhagen, Fac Hlth & Med Sci, Dept Pharm, Copenhagen, Denmark 4.Guangzhou RiboBio Co Ltd, Guangzhou 510663, Guangdong, Peoples R China 5.Jiangsu Univ, Sch Food & Biol Engn, Zhenjiang 212013, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xiao-Bin,Wu, Lin-Ping,Hou, Jing,et al. Environmental biodegradation of haloarchaea-produced poly(3-hydroxybutyrate-co-3-hydroxyvalerate) in activated sludge[J]. Applied microbiology and biotechnology,2016,100(15):6893-6902. |
| APA | Liu, Xiao-Bin,Wu, Lin-Ping,Hou, Jing,Chen, Jun-Yu,Han, Jing,&Xiang, Hua.(2016).Environmental biodegradation of haloarchaea-produced poly(3-hydroxybutyrate-co-3-hydroxyvalerate) in activated sludge.Applied microbiology and biotechnology,100(15),6893-6902. |
| MLA | Liu, Xiao-Bin,et al."Environmental biodegradation of haloarchaea-produced poly(3-hydroxybutyrate-co-3-hydroxyvalerate) in activated sludge".Applied microbiology and biotechnology 100.15(2016):6893-6902. |
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来源：中国科学院大学
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