کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9758363 1496744 2005 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of the proteinaceous matter in marine aerosols
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Characterization of the proteinaceous matter in marine aerosols
چکیده انگلیسی
DFAA and DCAA enriched the aerosols we sampled by 1.2-20 times compared to bulk seawater; PAA enrichment was usually higher (up to 50-fold). Aerosols contained particles typical of seawater, e.g., microorganisms, organic debris, inorganic particles with adsorbed organic matter, but also a large number of semitransparent gel-like particles, which all contained amino acids. Some of these particles were probably scavenged from bulk water, but new particles produced as bubbles burst at the surface comprised at least 10% of total proteinaceous matter in the aerosol. D/L ratios of certain amino acid suggested that the particles were most likely made from dissolved polymers secreted by phytoplankton that were concentrated on bubble surfaces and in the microlayer. Examination with Alcian Blue (a dye that targets carbohydrates) and Coomassie Blue (a dye that targets proteins) showed that most TSP in the aerosols contained both proteins and polysaccharides. Microorganisms enriched the aerosols by up to two orders of magnitude, but contributed less than 4% to the total protein pool.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Chemistry - Volume 96, Issues 3–4, 1 September 2005, Pages 359-377
نویسندگان
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