聚乙烯的生物降解由塑料食用Tenebrionidae幼虫进行
Erika Alessia Di Liberto1, Giuseppe Battaglia1, Rosalia Pellerito2
1Dipartimento di Ingegneria, Università di Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy.
Polymers
|May 25, 2024
概括
面粉 (Tenebrio Molitor) 和超级 (Zophobas Morio) 显示出聚烯 (PS) 生物降解的潜力. 食PS的幼虫,特别是当用过氧化进行预处理时,显示出聚合物的分子量减少和表面形态变化,表明降解.
科学领域:
- 聚合物科学 聚合物科学
- 环境科学 环境科学
- 昆虫学 昆虫学是一门学科.
- 生物技术是生物技术.
背景情况:
- 聚乙烯 (PS) 是一种高度稳定的,防水的聚合物,耐生物降解.
- 迫切需要有效的生物降解方法来处理持久性塑料废物.
- 某些昆虫幼虫具有可以分解复杂材料的消化能力.
研究的目的:
- 为了研究Tenebrio Molitor (T. Molitor) 和Zophobas Morio (Z. Morio) 幼虫在聚烯上的生物降解潜力.
- 为了比较不同饮食,包括普通PS和H2O2处理的PS对幼虫生存和PS降解的影响.
- 为了分析幼虫消化后PS属性的变化.
主要方法:
- 幼虫被食六种实验性饮食:,PS或H2O2处理的PS.
- 在30天内监测了幼虫质量,存活率和.
- 使用FTIR,分子量确定,TGA和SEM分析了Frass衍生的PS.
主要成果:
- 食了T. Molitor幼虫的干支显示了最高的存活率 (~94%).
- 被H2O2处理的PS养的Z. Morio幼虫的生存率最高.
- 在幼虫中,PS分子量 (Mw和Mn) 降低,这表明生物降解.
- 在SEM分析中,与原始PS相比,Frass中的PS表面结构发生了显著的变化.
结论:
- 布里奥·莫利托和佐福巴斯·莫里奥幼虫显示出聚烯生物降解的能力.
- 用H2O2预处理PS可能会提高它被Z. Morio幼虫的可降解性.
- 幼虫的消化改变了PS的形态,并降低了分子量,提供了潜在的生物循环途径.
相关概念视频
Types of Step-Growth Polymers: Polyesters
2.2K
The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.2K
Bioremediation
18.3K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.3K
Free-Radical Chain Reaction and Polymerization of Alkenes
7.8K
The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
7.8K


