کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5201776 1502905 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Co-occurrence of bacteria and fungi and spatial partitioning during photographic materials biodeterioration
ترجمه فارسی عنوان
همبستگی باکتری ها و قارچ ها و پراکندگی فضایی در طول مواد عکاسی از بین بردن مواد
کلمات کلیدی
پلیمرها، کاهش وزن کاغذ شیلنگ، ژلاتین، سلولز، مواد عکاسی،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی

The microbial spoilage and correlated surface changes of a cellulose nitrate negative film, a gelatine-silver positive print, a cardboard frame and a cellulosic envelope dated back to 1938-1940 was assessed by means of molecular methods and scanning electron microscopy (SEM). Materials characterisation was obtained with Raman, Infrared and Electronic dispersion spectroscopies. DNA was extracted from bacteria and fungi, amplified through PCR oriented to bacterial 16S rRNA gene and fungal internal transcribed spacer (ITS), and clone libraries were constructed for each investigated material. The ITS fungal cloning was able to detect a bigger spectrum of species respect to bacterial one. Correspondence between molecular results and SEM observations was used to address the cause of biodeterioration to single species, and to map the presence of different organisms in separate niches. This investigation highlighted a co-occurrence of both bacteria and fungi on most of the substrata, and a spatial partitioning according to the different photographic materials. Moreover, for the first time, the effects of a biological attack on glassine paper were documented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 108, October 2014, Pages 1-11
نویسندگان
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