کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7584435 1492025 2018 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Botanical origin characterisation of tannins using infrared spectroscopy
ترجمه فارسی عنوان
مشخصات منشاء گیاه شناسی تانن ها با استفاده از طیف سنجی مادون قرمز
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Different approaches to analysing the botanical origin of tannins have been proposed in the last fifteen years, but are generally time consuming and require the use of advanced instrumentation. This study aims to suggest an effective, easy, rapid and cheap method based on the acquisition of FT-IR spectra of 3 g/L hydroalcoholic tannin solutions, overcoming possible disadvantages due to sample or particle size inhomogeneity. 114 commercial powder tannins from 7 different botanical sources (oak, chestnut, gall, quebracho, tea, grape skin and grape seed) were collected and the FT-IR spectra were acquired in the region 926-5011 cm−1. Partial Least Squares regression, Discriminant Analysis and Artificial Neural Networks were applied to FT-IR spectra to investigate the possibility of differentiating the 7 botanical origins. The best results were obtained using Discriminant Analysis, with 95% correct re-classification, and 97% grouping of grape skin and seed in a single source.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 267, 30 November 2018, Pages 204-209
نویسندگان
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