کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7588947 1492088 2016 31 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rapid direct analysis to discriminate geographic origin of extra virgin olive oils by flash gas chromatography electronic nose and chemometrics
ترجمه فارسی عنوان
تجزیه و تحلیل مستقیم سریع برای تبعیض منشاء جغرافیایی روغن زیتون فوق العاده با استفاده از کروماتوگرافی گاز فلاش گاز الکترونیکی و شیمی درمانی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
At present, the geographical origin of extra virgin olive oils can be ensured by documented traceability, although chemical analysis may add information that is useful for possible confirmation. This preliminary study investigated the effectiveness of flash gas chromatography electronic nose and multivariate data analysis to perform rapid screening of commercial extra virgin olive oils characterized by a different geographical origin declared in the label. A comparison with solid phase micro extraction coupled to gas chromatography mass spectrometry was also performed. The new method is suitable to verify the geographic origin of extra virgin olive oils based on principal components analysis and discriminant analysis applied to the volatile profile of the headspace as a fingerprint. The selected variables were suitable in discriminating between “100% Italian” and “non-100% Italian” oils. Partial least squares discriminant analysis also allowed prediction of the degree of membership of unknown samples to the classes examined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 204, 1 August 2016, Pages 263-273
نویسندگان
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