Uncovering the potential of landfill leachate for biodegradation of cassava-derived plastics

被引：5

作者：

Zorza, Laura ^{[1
]}

Gudra, Dita ^{[2
]}

Sipola, Katrina ^{[1
]}

Vonda, Karlis ^{[1
,3
]}

Fridmanis, Davids ^{[2
]}

Kalnin, Ineta ^{[2
]}

Bartkevics, Vadims ^{[1
]}

Delina, Aija ^{[1
]}

Grinbergs, Andrejs ^{[1
]}

Muter, Olga ^{[1
]}

机构：

[1] Univ Latvia, Fac Biol, Dept Microbiol & Biotechnol, 1 Jelgavas Str, LV-1004 Riga, Latvia

[2] Latvian Biomed Res & Study Ctr, Ratsupites Str, LV-1067 Riga, Latvia

[3] Getlini Eko SIA, Kaudzisu Str 57, LV-2121 Riga, Latvia

来源：

BIORESOURCE TECHNOLOGY REPORTS | 2023年 / 24卷

关键词：

Cassava; Biodegradable plastics; Landfill leachate; Metagenome; OxiTop (R); Soil; BIOPLASTICS; TOXICITY; STARCH;

D O I：

10.1016/j.biteb.2023.101628

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Accumulation of plastic wastes in the environment forces industry to produce sustainable and biodegradable types of plastics. Our study was focused on evaluation of the landfill leachate as the environment for degradation of cassava -derived plastics (CAS). The metagenomic and ecotoxicological analysis of the landfill leachate was performed. The leachate exhibited a high ecotoxicity. A high throughput metagenomic analysis has revealed a dominant abundance of Proteobacteria (54.7 %), followed by Euryarchaeota (12.5 %). Biodegradation of CAS after the 30 -day incubation in a 2 % leachate was higher in the set with agitation, as compared to static conditions, i.e., 49.9 % and 39.3 %, respectively. Regression analysis showed a high correlation between weight loss and reducing of a surface area during degradation process (R2 = 0.95). The results demonstrated a high potential of the landfill leachate with enormous microbial diversity for further optimization of the biodegradation process.

引用

页数：9

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