کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8979038 1553696 2005 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of purge and trap and solid phase microextraction techniques for studying the volatile aroma compounds of three European PDO hard cheeses
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
Comparison of purge and trap and solid phase microextraction techniques for studying the volatile aroma compounds of three European PDO hard cheeses
چکیده انگلیسی
Solid phase microextraction (SPME) and purge and trap (P&T) methods were compared to establish their effectiveness for the extraction of cheese aroma compounds from selected raw milk protected designation of origin (PDO) cheeses. The profiles of the volatile fraction from each cheese variety obtained by using the two extraction methods were significantly different. SPME fibres were more effective for extracting medium and high boiling compounds, P&T was better for extracting the highly volatile compounds. Gruyère Switzerland cheeses showed high concentrations of alkenes, aldehydes, methyl ketones, butane-2,3-dione, unsaturated alcohols, branched chain acids and 2,6-dimethyl pyrazine. Manchego cheeses contained high concentrations of alkanes, alkanols, prop-2-en-1-ol, propan-2-one and butan-2-one and their corresponding reduction products propan-2-ol and butan-2-ol, propyl esters and aromatic compounds. Ragusano cheeses contained high concentrations of fatty acids and ethyl and butyl esters. Discriminant analyses, performed separately for each extraction method, correctly classified all the samples by their PDO origin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Dairy Journal - Volume 15, Issues 6–9, June–September 2005, Pages 741-758
نویسندگان
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