Quality Control of Honey Using New Generation Infrared Spectrometers
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Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The objective of this study was to develop a rapid infrared technique to determine 10 keyquality parameters (sucrose, glucose, fructose, reducing sugar, 5-HMF, °Brix, moisturecontent, water activity, pH and free acidity) in honey by using new generation portableand handheld devices. The composition of honey samples (n=59) collected from differentparts of Turkey was analyzed by using established reference methods, giving wide rangeof concentrations for each parameter. The levels of sucrose and 5-HMF in some sampleswere above the established regulatory limits (Codex Alimentarius and European Unionstandards), indicating possible adulteration or process and storage abuse. Spectra werecollected by using portable Fourier-Transformed infrared (FTIR) and handheld NIR(Near Infrared) spectrometers. Partial least squares regression (PLSR) approach was usedto correlate the spectral features with compositional reference values, giving strong linearcorrelation coefficients and standard errors of prediction. Although both systemsperformed similarly, portable FTIR system was superior in predictions of sucrose, 5-HMF and free acidity while portable NIR system performed noticeably better for °Brixand moisture content. The data indicates that all of the 10 parameters can be measuredwithin the minutes using both systems, providing reliable screening capabilities,flexibility and the potential for in-field applications.
Açıklama
Anahtar Kelimeler
Optik, Kimya, Analitik, Gıda Bilimi ve Teknolojisi
Kaynak
Türk Tarım - Gıda Bilim ve Teknoloji dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
5
Sayı
4
