کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
200760 1424346 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biodegradation of deproteinized potato wastewater and glycerol during cultivation of Rhodotorula glutinis yeast
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Biodegradation of deproteinized potato wastewater and glycerol during cultivation of Rhodotorula glutinis yeast
چکیده انگلیسی

BackgroundDeproteinized potato wastewater and glycerol are two by-products which are difficult to dispose. The objective of this study was to determine the ability of Rhodotorula glutinis to use glycerol and nitrogen compounds present in deproteinized potato wastewater and to evaluate the ability of simultaneous biodegradation of potato wastewater and glycerol via microbiological methods.ResultsIt has been found that R. glutinis used glycerol and potato wastewater as a source of carbon and nitrogen, respectively. The highest degree of glycerol content (70.6%) reduction was found after cultivation of the investigated strain using a medium with 5% glycerol. In this medium, a significant reduction in the total protein content, estimated at 61%, was observed. The process of 72 h cultivation of yeast in a medium containing potato wastewater and 5% glycerol reduced the chemical oxygen demand (COD) more than 77%. Supplementation of media with high doses of glycerol (i.e. 20 and 25%) led to decreased metabolic activity in the yeast strain tested.ConclusionIt has been found that there is a possibility of simultaneous biodegradation of potato wastewater and glycerol during the cultivation of R. glutinis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electronic Journal of Biotechnology - Volume 18, Issue 6, November 2015, Pages 428–432
نویسندگان
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