کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10410426 894437 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Coupling gas chromatography and electronic nose for dehydration and desalcoholization of alcoholized beverages
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Coupling gas chromatography and electronic nose for dehydration and desalcoholization of alcoholized beverages
چکیده انگلیسی
Aroma characterization of alcoholic beverages with sensor array electronic noses is a difficult challenge due to the masking effect of ethanol. Back-flush gas chromatography is proposed as a novel tool for the pretreatment of vapour samples before analysis in the electronic nose. The dehydration and desalcoholization step can be conducted in parallel with electronic nose detection, reducing significantly the analysis overall duration. As demonstration application, five molecules responsible for off-flavours in wines have been detected with a FOX 4000 system, after total dehydration and desalcoholization. Principal component analysis showed that discrimination between the control wine and off-flavour doped-wines became easy, even at concentrations corresponding to the human expert perception threshold.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 106, Issue 1, 29 April 2005, Pages 253-257
نویسندگان
, , ,