کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7585402 | 1492037 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Quantitative assessment of specific defects in roasted ground coffee via infrared-photoacoustic spectroscopy
ترجمه فارسی عنوان
ارزیابی کمی از نقص های خاص در قهوه بو داده از طریق طیف سنجی مادون قرمز
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کلمات کلیدی
FTIR-PASQuinic acid (PubChem CID: 6508)Pyruvic acid (PubChem CID: 1060)Chlorogenic acid (PubChem CID: 1794427) - اسید کلرژنیک (PubChem CID: 1794427)Chemometric methods - روش های شیمیاییFructose (PubChem CID: 5984) - فروکتوز (PubChem CID: 5984)Pyridine (PubChem CID: 1049) - پیریدین (PubChem CID: 1049)Caffeine (PubChem CID: 2519) - کافئین (PubChem CID: 2519)
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Chemical analyses and sensory evaluation are the most applied methods for quality control of roasted and ground coffee (RG). However, faster alternatives would be highly valuable. Here, we applied infrared-photoacoustic spectroscopy (FTIR-PAS) on RG powder. Mixtures of specific defective beans were blended with healthy (defect-free) Coffea arabica and Coffea canephora bases in specific ratios, forming different classes of blends. Principal Component Analysis allowed predicting the amount/fraction and nature of the defects in blends while partial Least Squares Discriminant Analysis revealed similarities between blends (=samples). A successful predictive model was obtained using six classes of blends. The model could classify 100% of the samples into four classes. The specificities were higher than 0.9. Application of FTIR-PAS on RG coffee to characterize and classify blends has shown to be an accurate, easy, quick and “green” alternative to current methods.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 255, 30 July 2018, Pages 132-138
Journal: Food Chemistry - Volume 255, 30 July 2018, Pages 132-138
نویسندگان
Rafael Carlos Eloy Dias, PatrÃcia Valderrama, Paulo Henrique Março, Maria Brigida dos Santos Scholz, Michael Edelmann, Chahan Yeretzian,