کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7594298 1492119 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Use of near infrared hyperspectral tools for the screening of extractable polyphenols in red grape skins
ترجمه فارسی عنوان
استفاده از ابزارهای فوق العاده مادون قرمز برای غربالگری پلی فنل های قابل استخراج در پوست انگور قرمز
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Hyperspectral images of intact grapes were recorded at harvest time using a near infrared hyperspectral imaging system (900-1700 nm). Spectral data have been correlated with red grape skin extractable polyphenols (total phenolic, anthocyanins and flavanols) by modified partial least squares regression (MPLS) using a number of spectral pretreatments. The obtained results (coefficient of determination (RSQ) and standard error of prediction (SEP), respectively) for the developed models were: 0.82 and 0.92 mg g−1 of grape skin for extractable total phenolic content, 0.79 and 0.63 mg g−1 of grape skin for extractable anthocyanin content, 0.82 and 0.45 mg g−1 of grape skin for extractable flavanol content. The obtained results present a good potential for a fast and reasonably inexpensive screening of the extractable polyphenolic compounds in intact grapes. Moreover, the heterogeneity of extractable polyphenols within the ripeness stage has been also evaluated using the proposed method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 172, 1 April 2015, Pages 559-564
نویسندگان
, , , , ,