کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4419442 1618938 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessing adsorption of polycyclic aromatic hydrocarbons on Rhizopus oryzae cell wall components with water–methanol cosolvent model
ترجمه فارسی عنوان
بررسی جذب هیدروکربن های آروماتیک چند حلقه ای بر اجزای دیواره سلولی ریزوپوس اریزا با مدل سازگار با متانول آب
کلمات کلیدی
جزء دیوار سلولی؛ همکاران Rhizopus oryzae؛ ضریب پارتیشن؛ هیدروکربن های آروماتیک چند حلقه
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


• Adsorption of PAHs on fungal cell walls was determined in methanol–water cosolvent.
• Bound proteins influenced sorption behaviors of PAHs on cell wall components.
• Lipid adsorption was insufficient to evaluate the fate of PAHs adsorbed on fungal.
• Contribution of polysaccharide in PAHs adsorption on cell walls cannot be ignored.

The contribution of different fungal cell wall components in adsorption of polycyclic aromatic hydrocarbons (PAHs) is still unclear. We isolated Rhizopus oryzae cell walls components with sequential extraction, characterized functional groups with NEXAFS spectra, and determined partition coefficients of PAHs on cell walls and cell wall components with cosolvent model. Spectra of NEXAFS indicated that isolated cell walls components were featured with peaks at ~532.7 and ~534.5 eV energy. The lipid cosolvent partition coefficients were approximately one order of magnitude higher than the corresponding carbohydrate cosolvent partition coefficients. The partition coefficients for four tested carbohydrates varied at approximate 0.5 logarithmic units. Partition coefficients between biosorbents and water calculated based cosolvent models ranged from 0.8 to 4.2. The present study proved the importance of fungal cell wall components in adsorption of PAHs, and consequently the role of fungi in PAHs bioremediation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ecotoxicology and Environmental Safety - Volume 125, March 2016, Pages 55–60
نویسندگان
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