Isa Valerio, Saliu Francesco, Bises Chiara, Vencato Sara, Raguso Clarissa, Montano Simone, Lasagni Marina, Lavorano Silvia, Clemenza Massimiliano, Galli Paolo
Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy.
Earth and Environmental Science Department, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milano, Italy.
Chemosphere. 2022 Jun;297:134247. doi: 10.1016/j.chemosphere.2022.134247. Epub 2022 Mar 5.
The bioconcentration of dimethyl phthalate (DMP) diethyl phthalate (DEP) dibutyl phthalate (DBP) butyl benzyl phthalate (BBzP), di-(2-ethy hexyl) phthalates (DEHP), mono-butyl phthalate (MBP), mono-benzyl phthalate (MBzP), mono-(2-ethy hexyl) phthalate (MEHP) in the soft corals Coelogorgia palmosa, Sinularia sp., Sarcophyton glaucum, and Lobophytum sp. was investigated. Specimens were cultured in a microcosm environment built-up at the Genova Aquarium and analyses were carried out by in vivo SPME-LC-MS/MS. The distributions of the phthalates among the four surveyed species resulted significantly different. Calculated bioconcentration factors (BCFs) showed values spanning over two orders of magnitude, from a minimum of log10 BCF = 1.0 in Sarcophyton glaucum to a maximum of log10 BCF = 3,9 calculated for Coelogorgia palmosa. Moreover, the calculated BCFs of the long chain phthalates resulted up to three orders of magnitude lower than theoretically predicted (from logK), whereas BCF of short chain phthalates resulted higher. This, together with the detection of phthalic acid monoesters, suggests the presence of species-specific different metabolic transformation among the surveyed soft coral species that involve DEHP.
研究了邻苯二甲酸二甲酯（DMP）、邻苯二甲酸二乙酯（DEP）、邻苯二甲酸二丁酯（DBP）、邻苯二甲酸丁苄酯（BBzP）、邻苯二甲酸二（2-乙基己基）酯（DEHP）、邻苯二甲酸单丁酯（MBP）、邻苯二甲酸单苄酯（MBzP）、邻苯二甲酸单（2-乙基己基）酯（MEHP）在软珊瑚棕榈腔肠珊瑚、异软珊瑚属、灰肉珊瑚和短指软珊瑚中的生物富集情况。样本在热那亚水族馆构建的微观环境中培养，并通过体内固相微萃取-液相色谱-串联质谱法进行分析。邻苯二甲酸酯类在四种被调查物种中的分布存在显著差异。计算得出的生物富集系数（BCF）值跨越了两个数量级，从灰肉珊瑚中最低的log10 BCF = 1.0到棕榈腔肠珊瑚中最高的log10 BCF = 3.9。此外，长链邻苯二甲酸酯类的计算BCF值比理论预测值（根据logK）低多达三个数量级，而短链邻苯二甲酸酯类的BCF值则较高。这一点，再加上邻苯二甲酸单酯的检测结果，表明在所调查的软珊瑚物种中存在涉及DEHP的物种特异性不同代谢转化。
