Life and Environmental Sciences Division, Syracuse Research Corporation, Syracuse, New York 13210, and Monsanto Company, St. Louis, Missouri 63166.
Appl Environ Microbiol. 1984 Apr;47(4):601-6. doi: 10.1128/aem.47.4.601-606.1984.
An acclimated shake flask CO(2) evolution test was used to study the biodegradability of 14 commercial phthalate esters that are commonly used as plasticizers. Both CO(2) evolution (ultimate biodegradation) and loss of parent phthalate esters (primary biodegradation) were measured. With only a few exceptions, primary biodegradation was 90% or higher, and ultimate biodegradation was in excess of 55% of theoretical results in 28 days. The results showed that all of the commercial phthalate esters were susceptible to biodegradation by mixed populations of microorganisms from natural sources. The results also provide considerable insight into the utility and reproducibility of a standard biodegradation test that is being recommended for widespread screening of chemicals.
采用驯化摇瓶 CO2 释放试验来研究 14 种常用作增塑剂的商业邻苯二甲酸酯的可生物降解性。同时测定 CO2 释放（最终生物降解）和母体邻苯二甲酸酯的损失（初级生物降解）。除了少数例外，初级生物降解率在 90%以上，在 28 天内，最终生物降解率超过理论值的 55%。结果表明，所有的商业邻苯二甲酸酯都容易被来自自然来源的混合微生物种群生物降解。这些结果还为正在推荐用于广泛筛选化学品的标准生物降解试验的实用性和可重复性提供了重要的见解。
