氧化甲基酸盐 (EMO) 作为水生环境中的生物基塑化剂的生态毒理学评估和生物降解潜力
Siti Afida Ishak1, Asma Liyana Shaari1, Noorazah Zolkarnain1
1Malaysian Palm Oil Board, 6, Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia.
Tropical life sciences research
|December 8, 2025
概括
氧化甲基酸盐 (EMO) 是一种生物基塑性剂,对水生生物的生态风险最小,具有良好的生物降解潜力. 这项研究为其作为可持续替代品的市场采用提供了关键的生态毒理学数据.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 绿色化学 绿色化学
背景情况:
- 基于酸盐的塑化剂面临着环境审查,推动了对可持续替代品的需求.
- 生物基塑化剂具有前景,但需要进行彻底的生态毒理学评估才能在市场上被接受.
- 关于环氧化甲基酸盐 (EMO) 对水生有毒性的有限数据阻碍了其采用.
研究的目的:
- 为了评估环氧化甲基酸盐 (EMO) 的急性水生毒性.
- 为EMO开发一种物种敏感度分布 (SSD) 曲线,以确定其预测无效度 (PNEC).
- 评估EMO在水生环境中的生物降解潜力.
主要方法:
- 对五种水生物种进行了急性毒性测试:莫伊纳,大夫尼亚,克拉米多莫纳斯强硬,Chlorella vulgaris和Macrobrachium lanchesteri.
- 使用正常分布和最大概率估计,开发了一种物种灵敏度分布 (SSD) 曲线.
- 在有氧条件下使用经合组织301F呼吸力测试评估了生物降解潜力.
主要成果:
- 在所有测试的水生物种中,EMO表现出度依赖的毒性.
- SSD曲线给出了5%的物种 (HC05) 的0.359 mg/L的危险度,超过了EMO的水溶性极限 (0.012 mg/L),表明生态风险最小.
- 经过EMO显著的有氧生物降解,在4天内达到60%的降解在30 mg/L和11日100 mg/L.
结论:
- 对于水生环境而言,EMO具有较低的生态风险概况.
- 有利的生物降解特性支持EMO作为环保可塑剂的潜力.
- 这项研究提供了必要的数据,以支持安全和广泛使用EMO作为传统可塑剂的可持续替代品.
更多相关视频
08:38Aerobic Biodegradation Testing of Materials Using a Natural Marine Seawater Inoculum and Closed Loop Respirometer
Published on: October 24, 2025
277
13:38Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
Published on: May 10, 2013
31.3K
相关概念视频
Preparation of Epoxides
9.0K
Overview
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of peroxy acids to...
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of peroxy acids to...
9.0K
Plasticizers
310
Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...
310
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)
2.2K
Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
2.2K
Olefin Metathesis Polymerization: Overview
2.5K
Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
2.5K
