Biodegradation of Poly-ε-caprolactones and Poly-l-lactides by Fungi

被引：29

作者：

Antipova, Tatiana V. ^{[1
]}

Zhelifonova, Valentina P. ^{[1
]}

Zaitsev, Kirill V. ^{[2
]}

Nedorezova, Polina M. ^{[3
]}

Aladyshev, Alexander M. ^{[3
]}

Klyamkina, Alla N. ^{[3
]}

Kostyuk, Sergey V. ^{[4
]}

Danilogorskaya, Anastasiya A. ^{[1
]}

Kozlovsky, Anatoly G. ^{[1
]}

机构：

[1] Russian Acad Sci, GK Skryabin Inst Biochem & Physiol Microorganisms, Pushchino 142290, Moscow Region, Russia

[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[3] Russian Acad Sci, NN Semenov Inst Chem Phys, 4 Kosygin Str, Moscow 119991, Russia

[4] Belarusian State Univ, Res Inst Phys Chem Problems, 14 Leningradskaya Str, Minsk 220030, BELARUS

来源：

JOURNAL OF POLYMERS AND THE ENVIRONMENT | 2018年 / 26卷 / 12期

关键词：

Poly-epsilon-caprolactone; Poly-l-lactide; Biodegradation; Fungus; BULK-POLYMERIZATION; ALUMINUM COMPLEXES; DEGRADATION; POLYESTERS; SOIL; POLY(L-LACTIDE); PROPYLENE;

D O I：

10.1007/s10924-018-1307-3

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This work assessed biodegradation, by Aspergillus, Fusarium, Penicillium and Parengyodontium fungi, of four samples of poly-epsilon-caprolactone (PCL), three samples of poly-l-lactide (PLA) and one sample of poly-d,l-lactide (DL-PLA) produced by ring-opening polymerization initiated by aluminium complexes of corresponding lactones. Mesophilic fungal strains actively biodegrading PCL (F. solani) and PLA (Parengyodontium album and A. calidoustus) were selected. The rate of degradation by the selected fungi was found to depend on the physicochemical and mechanical properties of the polymers (molecular weight, polydispersity, crystallinity). The most degradable poly-epsilon-caprolactone sample was shown to have the lowest molecular weight; the most biodegradable polylactide DL-PLA had the lowest crystallinity. Mass spectral analysis of biodegraded polymer residues showed PCL to be degraded more intensively than PLA. It is established that in the case of Parengyodontium album the colonization of the films of polypropylene composites with DL-PLA is observed, which will undoubtedly contribute to their further destruction under the influence of abiotic factors in the environment.

引用

页码：4350 / 4359

页数：10

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